Cooking assembly for beverages preparation and machine containing such assembly

FIELD: food industry.

SUBSTANCE: cooking assembly contains an instillation station carrying out a rotary movement with a piston inserted into the station so that to enable sliding. A counter-piston interacts with the installation station and the piston so that to form the cooking chamber. Additionally provided for are cam elements for control of the installation station, piston and counter-piston motions. The installation station, piston and counter-piston may occupy relative to each other at least one position for loading the product for beverage preparation purposes, at least two various boiling positions (the two various volumes of the boiling chamber correspond to) and the position for used product discharge.

EFFECT: invention enables to enhance the design strength and reliability.

20 cl, 61 dwg

 

The technical field to which the invention relates

The present invention relates to improvements brewery for making beverages, mainly, but not exclusively, for coffee, or rather to the cooking units designed for use in automated machines, in which the cooking unit receives a predetermined portion of ground coffee (pre-packaged or unpackaged) or other products for the beverage and loops closing the cooking chamber, the beverage through the introduction of hot water and discharging the used ground coffee or other used product.

The invention also relates to a machine for preparing beverages containing cooking unit of the aforementioned type.

The invention in General relates to machines for home or professional use, as well as machines in the form of vending machines.

The state of the art

In electrical machines for the preparation or manufacture of beverages, in particular coffee, use so-called cooking units, which contain a large number of movable elements forming a cooking chamber, in which the load portion of loose ground coffee or coffee Packed in the form of capsules, cartridges or something on the one. After cooking chamber will be loaded freshly ground coffee, shut it down and provide passage inside the hot water at the required pressure for the extraction of the ground coffee aromatics and drink preparation. In the late stage of cooking the cooking chamber open and unload the used ground coffee.

Some machines of this type, especially those designed to operate in conjunction with the products, Packed in the form of cartridges, capsules and something similar, also provide the possibility of making other types of beverages or foodstuffs, such as tea, chocolate or something similar.

In the document U.S. US A 4681028 described the cooking device of this type, which is mentioned above and in which the cooking chamber is formed between the two parts movable relative to each other. The cooking unit described in this patent mainly contains the installation place or a cylinder, inside which slides a piston. Installation place can make the oscillation and rectilinear movement relative to the support structure for its cast in the loading position of ground coffee in the cooking position. The last-mentioned position to provide through movement of the installation location to kontrolny and around kontrolna, which is fixed on the reference design, the tion. Controlling, installation position and the piston form a cooking chamber with a fixed volume. The mechanism of opening and closing is such that once it reaches a position closing and cooking, the forces acting on the workpiece, forming a cooking chamber, due to the pressure of the water supplied to the camera itself, will be transferred to the support structure without forces acting on the engine node, which actuates the mechanism for opening and closing. Other cooking devices or nodes of this type are described in the document Spain ES A 2156668, document FR France A 2663216, in document U.S. US A 5259296, European document EP-A 486433, U.S. documents US A 5551988, US A 6779436, US A 6807898, European document EP AND 1459663 and EP AND 937432.

In the document U.S. US A 6101923 described rotary cooking unit with dual cooking chamber. Two cooking chambers used for coffee preparation two different qualities, but rather, for example, espresso and freshly brewed coffee. The rotary unit is equipped with Cams that control the movement of the piston inside the cooking chamber.

In the European document EP AND 0380450 described another brewery with a rotary cylindrical chamber communicating with ControlNet performing a limited oscillatory movement from a position of rest into the operating position. In the working position controlling associated with the cylinder to the measure of education in conjunction with the piston, installed inside the chamber, the cooking volume. The piston has a helical spring, the purpose of which is to compensate for any possible changes in the volume of ground coffee, in the cooking chamber. This brewery has one cooking position with the specified volume of the cooking chamber and with the system block of the cooking chamber in position for transfer to the support structure stresses from pressure that occur within it. The mechanism of actuation for actuating and output of the operational state of the locking device of the cooking chamber.

The invention

According to one aspect of the present invention relates to a cooking unit for making coffee or in General for the preparation of beverages, especially when there are a durable and reliable construction allows you to work with variable amounts of the cooking chamber to create drinks of different quality (e.g., espresso and fresh welding) and/or with a variable number of servings of the drink at each cooking cycle, for example, by obtaining only one Cup of coffee or getting two cups of coffee with a single brewing operation.

According to one of embodiments of the design of the cooking Assembly, made in accordance with ISO what rutenium, includes swivel arm with the installation location, which makes the sliding of the piston, and controlling interacting with the installation place and the piston for the education of the cooking chamber.

Below will be described a specific brewery for making coffee. However, it should be clear that the distinguishing characteristics of the melting unit according to the invention by providing useful results can be applied to other types of machines for the preparation of various beverages, or machines that can prepare coffee or other types of drinks. Therefore, when in the present description and in the accompanying claims refers to coffee and ground coffee, it should be understood that in some embodiments, constructs the same brewery can be used with other products than ground coffee, possibly, with packaging for single serving or for a large number of portions, for the preparation of other types of drinks.

Preferably, in some embodiments, implementation of the design was created brewery for the production or preparation of coffee or other drinks containing General: installation position, making the movement of rotation in which the slidable concluded piston; controlling interacting with the installation place of the piston for the education of the cooking chamber; the Cam elements to control the movements of the installation space of the piston and controlsa. Installation position, the piston and controlling are located, designed and managed so as to fill at least one loading position for loading of the product or substance (for example, ground coffee), which must be prepared drink at least two different positions of cooking, which correspond to two different volume of the cooking chamber, and a discharge position for discharging the used product or substance, such as ground coffee tablets or capsule or cartridge used with coffee.

In a preferred embodiment, the design of the loading position is intermediate between the position for unloading and two or more provisions for cooking.

In one embodiment, the implementation of the design of the Cam elements are intended for transmission to the base structure a significant part of the stress exerted on the piston and on controlling during the cooking stage. These stresses arise from the compression of the ground coffee or other product used to prepare the drink, and hot water pressure, which should be omitted through the ground coffee to extract the substances from which prepare the drink. It is particularly effective is echanism opening and closing the cooking chamber, in the case of which it is not necessary to provide an auxiliary locking elements to maintain the cooking chamber in a certain position during the compression and/or hot water through the ground coffee or other product. Through the transfer of a significant part of the stresses to the support structure through the control Cams will prevent any torsional stress on the motor shaft. The preferred configuration of Cams is to pass the desired force response to the pressure inside the cooking chamber in all the different possible positions of cooking, or at least some of them.

In a possible embodiment, the design of the cooking unit contains three operating positions of the installation space of the piston and controlsa, which correspond to three different volume of the cooking chamber.

Preferably, controlling had mobility, so it was inserted into the installation position and slid in it.

To obtain robust and compact design in one embodiment, the rotary Cam hold between two opposing plates, forming a stationary support structure, which may be extracted from the machine.

In a possible embodiment, the swivel design of the installation place is limited to one item or in the being of one piece with the rotary hub, having an axis of rotation that is held by a fixed support structure. In a possible embodiment, the design of the Cam elements fully or partially fixed relative to the support structure. In a modified embodiment, the design of the Cams or Cam profiles to control moving elements brewery partially fixed relative to the support structure and partially movable, for example rotate around the axis of rotation. Movement can be a continuous movement of rotation or preferably a reciprocating motion of rotation, i.e. the oscillatory motion in opposite directions.

The Cams are preferably represent the Cams in the form of grooves, that is, the Cams in the form of a channel.

According to a preferred variant implementation of the design in the invention results from the cooking Assembly for preparing beverages, in particular coffee, comprising: mounting performing rotational and translational movement, in which is slidable comes piston; controlling interacting with the installation place and the piston for the education of the cooking chamber. Movement of each of the piston, kontrolna and the installation space is managed by fixed and rotary Cam profiles. acnee, according to some variants of implementation of the design installation position perform with the possibility of rotation around the first axis and translational movement along the second axis, the first and the second axis is preferably approximately orthogonal with respect to each other. Similarly, a piston enclosed in the installation location, can also perform the appropriate rotation and translational motion. Preferably, controlling had the opportunity translational motion, but preferably not had the opportunity to perform a rotational motion. In some embodiments, implementation of the design of each of the piston, kontrolna and installation space interact with the respective stationary and rotating Cam profiles or with a pair of fixed and rotary Cam profiles. More precisely, the movement of the installation space is managed by at least a fixed Cam profile and rolling the Cam profile. Preferably, in order to obtain a more robust design were provided with a pair of fixed Cam profiles and a pair of movable Cam profiles, and the profiles of each pair of symmetrical or identical. Similarly the piston is controlled by a fixed Cam profile and rolling Cam profile (iliary stationary and a pair of movable Cam profiles, with the same configuration), and ControlNet controlled by a fixed Cam profile and rolling Cam profile or, respectively, a pair of identical fixed Cam profiles and movable Cam profiles. In some preferred embodiments, the implementation of the design movable Cam profiles that control piston, ControlNet and the installation place, rotate around a common axis of rotation. In some embodiments, the movable Cam profiles to create a common rotary Cam. If the pair of Cam profiles are provided for each rolling element (piston, installation space and kontrolna), it preferably will be provided with two rotary Cam, each of which is provided with a corresponding one of the Cam profiles of each pair of Cam profiles.

In some embodiments, implementation of the design of the piston and installation position to form the node that will be retained by the respective contact elements, for example, in the form of fingers in the respective movable and stationary Cam profiles. The rotation of the movable Cam profile causes the rotation and translational movement of the piston and the installation space. As a separate Cam profiles for the piston and the installation location, you can pass this same thing in dateline movement as the piston, and the installation place, but to have different translational movement of the two elements, so that the piston will slide in relation to the installation place. Therefore, using the same actuator can provide the movement positions of the load position to the cooking position and then to the unloading position. The piston can slide in the installation location to take a different position cooking (with greater or lesser amounts of the cooking chamber), and the position of discharge of spent, that is used, the coffee powder or coffee extract cartridge, shell or capsule of the installation space. Similarly, ControlNet also controlled by the same motor or actuator that controls the movement of the piston and the installation space. Therefore, the obtained extremely simple and flexible design, which provides the possibility of cooking different varieties of coffee (for example, freshly brewed or so-called "American coffee") or a different number of cups of coffee (e.g. one or two). At the same time provided the opportunity of bringing to a minimum or a significant reduction in forces (arising from the compression of coffee and/or water pressure in the cooking chamber)that will be passed on in the l engine that is on the shaft, which transmits motion to the rotary kulacom.

In one embodiment, the implementation of the design of the Cam elements contain the first Cam cooperating with the piston to control the movement of the sliding piston in the installation place. In one embodiment, the rotation of the swivel unit causes the slide along the first Cam contact element fixed relative to the piston. Preferably, the Cam elements contained second Cam fixed relative to the support structure and interacting with ControlNet to control the movement of kontrolna in the installation place. In a practical embodiment, the design of the piston is set in motion by means of the swivel unit and the contact element kontrolna slides along the second Cam, with swivel arm actuates controlling. In this case one motor provides rotation of the swivel unit, and move the piston and controlsa. In a preferred embodiment of the invention the first and second Cams are located on one or the other of the two plates. Preferably, the first and second Cams were located on each of two plates. In practice, each dual Cam and includes a groove on each of two plates.

In one embodiment, the implementation of the Kohn is e.g. fixed relative to the steering node are pulling elements, designed to pull controlling through the swivel unit from the standby position cooking and bring controlling ago from cooking in the standby position when the swivel arm is shifted to the discharge position for discharging the used coffee.

In a modified embodiment of the design in the cooking unit is provided by the Cam elements, which contain the first group of Cam profiles, fixed relative to the support structure, and a second set of Cam profiles, which are flexible and are preferably rotated relative to the support structure for controlling movements of the installation space of the piston and controlsa.

Movable Cam profiles can be created on separate disks or preferably on a common rotary Cam.

In one embodiment, the implementation of the design in the cooking unit is provided by a pair of fixed plates, each of which has a group of stationary Cam profiles, which are actually the same, and a pair of rotary Cams installed at the fixed plate, each of the rotary Cam has a rotary group profiles, which are actually the same, and in the cooking unit installation position, the piston and controlling located between two stationary layer is.

In one embodiment, the implementation of the construction of the fixed support plate rotatable Cams. Preferably, each rotary Cam carried on a fixed plate, and it was located on its outer or inner side, that is, to two rotary Cam were located between two fixed plates.

In one embodiment, the implementation of the design of the piston, the installation place and controlling provided with corresponding contact elements, each of which interacts with at least one fixed Cam profile and one rotary Cam profile.

With fixed and rotary Cams you can control the rotation and translational movement of the piston and the installation space. In one embodiment, the implementation of the design of the Cams may be provided so that controlling instead of what has been stated, will only perform translational movement relative to the stationary structure, load-bearing.

Others provide benefits embodiments of the design and features of the invention will be indicated in the attached claims and will be described below with reference to some examples of the types of inventions.

Brief description of figures

More clear is s understanding of the invention will be provided with the description and the attached figures, demonstrating practical, not imposing restrictions variant implementation of the present invention, applied as an example to the cooking unit for preparation of ground coffee. In particular, the figures presented the following:

figure 1 shows a front view of a machine for making coffee, which can be used cooking unit according to the invention;

figure 2 presents a perspective view with partial cutaway of the cooking unit according to the invention in the first embodiment of the structure;

figure 3 presents a view along line III-III in figure 2;

4 shows a view in cross-section along line IV-IV of figure 3;

figure 5 presents a view in cross-section along line V-V of figure 3;

figure 6 presents a view in cross-section along line VI-VI of figure 3;

7-11 shows schematic views of the sequence of operation of the cooking unit according to figure 1-6;

on Fig presents a perspective view, with remote parts of the cooking unit according to the invention in the second embodiment, structures;

on figa shows a front view of one of the fixed plate on which is provided a stationary Cam profiles variant of implementation of the design according Fig;

on FIGU shows a front view of one of the rotary Cam is a rotary Cam profiles;

on Fig-18 shows a front view and partial views in cross section of the cooking unit according pig in different operating positions;

on Fig, 20 and 21 shows a perspective view of another version of the implementation design of the cooking unit according to the invention in three different operating positions, with one of the side plates removed to show the internal mechanism;

on figa presents a view in cross-section along line HHA-HHA on Fig;

on Fig presents a view similar to the view of Fig, but without removal of parts;

on Fig and 24 are internal views of the two fixed plates of the cooking device according Fig-22;

on Fig presents a view in cross-section along line XXV-XXV according Fig;

on Fig shows a front view of one of the movable jaws of the cooking device according Fig-25;

on Fig presents a view in cross-section along line XXVII-XXVII in Fig;

on Fig presents a view similar to the view of Fig, the other of the two movable jaws of the cooking device of this variant implementation structures;

on Fig presents a view in cross-section along line XXIX-XXIX in Fig;

on Fig presents a view in cross-section in fact, according to the median plane of the device shown in Fig-29, along the line XXX-XXX in Fig in the position in which the var is CNY Assembly is ready to download freshly ground coffee;

on Fig presents a top view in plan on the line XXXI-XXXI in Fig;

on Fig presents local view in cross-section along line XXXII-XXXII in Fig;

on Fig and 34 shows in cross-section, similar to the views of Fig and 32, with the cooking unit is in the stage of closing the cooking chamber;

on Fig presents a view in cross-section, similar to the views of Fig and 33, with the cooking unit having a configuration for discharging the used cartridge with coffee;

on Fig and 37 presents axonometric view and a view in cross section of the piston of the cooking device in a possible embodiment, design, Fig presents a cross section along the line XXXVII-XXXVII of the piston according Fig;

on Fig and 39 are cross-section along line XXXVIII-XXXVIII of the piston according Fig, 37 in two different operating configurations;

on Fig-45 is a cross-section of another version of the implementation design of the cooking unit according to the invention in different operating positions;

on figa-46D presents the regulating valve, the pressure in the different possible operating positions;

on Fig shows a front view of one of the two fixed plates are provided with a fixed Cam profiles of another version of the implementation of the construction unit according to the invention;

on figa, 47B, 47S presents a local cross-section along the lines A-a, b-b and C-C in Fig;

on Fig shows a front view of one of the two pivotal pawls with the corresponding rotary Cam profiles, the corresponding stationary profiles according Fig;

on figa-49D is a cross-section of the unit, which includes fixed and rotary Cam profiles according Fig-48 in different angular positions;

on Fig presents the trajectory of the fingers, driving the piston and installation position along the corresponding Cam shown in Fig.

Detailed description of embodiments of the invention

Figure 1 presents a schematic front view of the automatic espresso machines, generally indicated by the number 1, which can be applied to the cooking unit according to the invention. The position of the melting unit, generally indicated by the number 3, on the end-to-end view according to figure 1 is shown in phantom line. Position 5 marked surface on which shall be placed a Cup, pour coffee, fed the machine through the inlet nozzle or nozzles 7A, 7B. Machine 1 for making coffee, is shown in figure 1, is a machine for home use. However, it will be understood that the cooking agrega is according to the invention can also be used in coffee machines, professional type and automated dispensers or machines in the form of vending machines, in which at present usually are already using cooking units, such cooking units used for more advanced automated machines for home use.

Variant of implementation of the construction according to figure 1-11

The first version of the implementation design of the cooking unit 3 presented in detail in figure 2-11. In this embodiment, the cooking unit 3 contains two plates 9A, 9B, which are virtually identical and are connected by transverse elements 11 for forming a stationary support structure, which is mounted inside the machine 1. Preferably, stationary design, 9A, 9B, 11 could be extracted from the machine 1 for cleaning, maintenance, replacement, or intervention of some type, which may become necessary.

Between the two plates 9A, 9B hold the swivel arm 13. Node 13 is held by means of shafts or fingers 13A, so as to allow rotation around the axis A-A. one of the fingers or axes 13A is connected with the driving motor, not shown. The connection can be provided with a grooved profile, or in some other way, perhaps with limiter torque. In a possible embodiment, the design of the swivel arm 13 has two annular protrusion 13B, coaxially with the axis of rotation is Oh, which engages with the annular grooves 15 provided in the two plates 9A and 9B. Annular projections and the cavities are designed to improve the giving of the direction of rotational movement of the swivel unit 13 relative to the supporting structure.

Inside of the swivel unit 13 is formed of installation position 19. In one embodiment, the implementation of the design installation position 19 has a cylindrical configuration with a virtually round cross-section.

Inside the installation space 19 is enclosed by the piston 21, which slides along the axis In the installation space 19. The piston 21 has a piston rod 21A, which engages with a transverse finger 23, which passes in a direction virtually orthogonal to the axis B-b and the piston rod 21A of the piston 21.

The finger 23 is of the swivel unit 13 through two slits 13C (see, in particular, figure 2), is made on each side of the swivel unit 13. The length of the finger 23 in the axial direction is such that it is engaged with both ends protruding through the slits 13C, with the respective Cam profiles 25A, 25V, secured in the plates 9A, 9B. The Cam profiles 25A, 25V mainly form the Cams in the form of grooves and form part of Cam elements that control the movements of movable elements forming a cooking chamber of the cooking unit 3. In addition kulack the new profiles 25A, 25V Cam elements also include the Cam profile to move kontrolna described below.

The Cam profiles or Cams 25A, 25V, formed by the grooves, virtually identical, and their configuration details shown, for example, in figure 4. In one embodiment, the implementation of the design of this first Cam profile 25A, 25V has a first end 25X located at the first distance from the axis of rotation a-a of the swivel unit 13, and a second end 25Y, located at a shorter distance from the axis A-A. Between the two ends of the Cam profile passes through a curved path, which gradually moves away from the rotational axis a-a at the maximum distance and then again coming to the axis of rotation until it reaches the second end 25Y Cam profile 25A, 25V at a minimum distance from the axis of rotation A-A. the Work of this particular configuration the Cam profile 25A, 25V will be explained hereinafter with reference to the sequence according to Fig.7-11.

The front part of the piston 21 is provided with a filter 31, for example, formed in the form of a perforated metal cover. From the back of the filter 31 is made cavity 33 in which is stored coffee, prepared during the cooking cycle. The cavity 33 with the aim of passing the fluid is connected to the channel 35 for the production of coffee, supplied, for example, flexible trunk the th, which enables translational movement between the mounting seat 19 and the piston 21 during the different stages of the cooking cycle. Flexible tube 35 is connected to the channel 37, which, in turn, is connected with the feed nozzle or nozzles 7A, 7B cars on the circuit, which are not shown, but which may be easily designed by a skilled person in this field. Preferably, in this embodiment, the construction of the channel 37 was coaxially with the rotary hub 13, as it is provided in the rotary finger 13A.

The cooking unit further comprises controlling 41, movable in the following way between a number of operating positions. Controlling 41 has a cross section that is actually relevant to the cross-sectional positions 19 and the head 21 of the piston, and in the example shown this is actually the circular cross-section. It is provided with a transverse finger 43, which is in fact parallel to the finger 23, and its opposite ends are in engagement with the Cam profiles 45A, V performed in a stationary plates respectively 9A, 9B. Two Cam profile 45A, B the same and basically form the Cams in the form of grooves, in which the finger 43 forms a contact element.

In one embodiment, the implementation of the design of the Cams formed by the groove and, or Cam profiles 45A, B have part about going on a circle concentric with the axis of rotation a-a of the swivel unit 13. The portion passing through the circle, rounded to a radius of a section of the Cam, which gradually moves away from the axis of rotation a-a and, for example, has a concavity facing the direction opposite to the concavity of the (oriented to the axis a-a)passing around the circumference of the Cam.

Controlling 41 has a through channel 47 (see, in particular, 6)connected to a flexible tube 49 for supplying hot water under pressure coming from the boiler (not shown) of the machine 1 for making coffee. Hot water supplied through the filter, are forced to pass through the compressed ground coffee in the brewing chamber formed inside the installation space 19 between the top of piston 21, that is, the filter 31, and the front filter 41A of kontrolna 41. It is not excluded the possibility of reversing the hydraulic circuit by means of hot water under pressure through the piston 21 and removal of coffee, cooked in the cooking chamber, channel 47, provided in concorse 41.

Swivel arm 13 includes a system to engage kontrolna 41 to shift kontrolna along the path defined by the pair of Cam profiles 45A, B. In one embodiment, the implementation of the design drawing C the subject contains at least one first pair of additional parts 51A, 53A, and preferably two pairs of additional parts 51A, 53A; 51B report, V, which are actually the same. The location of two additional pairs of parts enables gearing balanced way of finger 43 near its ends, which can slide inside the Cams 45A, V formed by the grooves.

In one embodiment, the implementation of the design, each of the additional parts 51A, 53A; 51B report, V has a straight edge, indicated by the positions 55A, 55V for additional parts 51A, 51B report and positions 57A, 57B for additional parts 53A, B. Edges 55A, 57A and 55V, 57B are opposite to each other and form a channel of mutual sliding themselves edges and finger 43. Each additional portion 51A, 51B report, 53A, B, in addition, has a corresponding curved edge or profile 59A, 61A for additional parts 51A, 53A and B, V for additional parts 51B report, P. In particular, figure 5 you can see that the additional portion 51A, 51B report are in the radial direction more than the extra parts 53A, B, for a purpose which will be explained hereinafter. Straight edges or profiles 55A, 57A, 55V, 57B, 59A, 61A, B, V interact with the finger 43 kontrolna 41 to facilitate its movement along the path that he must follow when completing a work cycle and defined Kula is the same profile 45A, W.

The described device operates as explained in the following. The cooking cycle starts in position, schematically presented in Fig.7. In this position the swivel arm 13 is placed so that the installation position 19 is in position, which, for example, is actually under vertical charging hopper, generally designated T, through which the ground coffee is loaded into the space formed between the side walls of the installation space 19 and the front surface formed by the filter 31 of the piston 21. Ground coffee can be created directly grinding node inside the machine 1, which grinds the coffee beans, or may take the form of a container for ground coffee, this coffee maker can also be downloaded manually by the operator, for example, by using a metering device.

7 shows that the finger 23, which forms a contact element for Cam profiles 25A, 25V, located on the side of the curve of the Cam located at a maximum distance from the axis of rotation a-a of the swivel unit 13. Controlling 41 is in the off position, the finger 43 (which forms a contact element for Cam profiles 45A, V) is in position corresponding to the upper end of Cam profiles 45A, B, or close to this position. Can be provided element deblocare of kontrolna 41 in this position. For example, the blocking element may be an elastic element or element with the control actuators. The front surface 41A of kontrolna 41 mainly can be bent to trace the outer cylindrical profile of the swivel unit 13 and, therefore, remain resting the outer surface during the subsequent movement of rotation of the swivel unit 13 controlled drive motor (not shown).

On Fig presents the first stage of rotation of the arrow f13 swivel unit 13 with the mounting seat 19 and the piston 21, prisoners and sliding in it. In the angular position according Fig axis In positions 19 coincides with the axis of kontrolna 41, and the edge 55A, 55V each additional parts 51A, 51B report, which is fixed relative to the steering node 13, comes into contact with the finger 43.

With continued rotation in the direction of arrow f13 swivel arm 13 with the additional parts 51A, 51B report pulls controlling 41. The Cam profile of the grooves 45A, B, along which slides a finger 43, driven by a rotation of the swivel unit 13, such that when the continued rotation of the swivel unit 13 by the arrow f13 around the axis a-a, controlling approaches the axis a-a, penetrating into the installation place or cylinder 19, created at the turn of node 13.

Figure 10 presents the situation is their maximum rotation of the swivel unit 13 in a clockwise direction (as an example). In this position, the piston 21 is displaced by means of the finger 23, which interacts with the Cam grooves 25A, 25V, kontrolny, while the latter is located inside the installation space 19. From a comparison of figures 9 and 10 you can see that between the angular positions occupied by the cooking unit on these two figures, there is a difference in the distance between the piston 21 and ControlNet 41 and, consequently, the volume of the cooking chamber formed between the piston 21, ControlNet 41 and the cylindrical wall of the installation space 19 within which slide the aforementioned elements. In both positions according to figures 9 and 10 cooking chamber is closed and is serving coffee, compressed as a result of pressure exerted by the opposite surfaces of the piston 21 and controlsa 41. In all angular positions between the positions represented respectively in figures 9 and figure 10, is formed a closed cooking chamber with a gradually variable volume.

According to the final angular position of the turning node 13, it is possible to form a cooking chamber with a volume that varies between a maximum value (Fig.9) and minimum value (figure 10). In each of these provisions of the relevant stage of cooking may occur with the introduction of water under pressure from the boiler and accumulation along the axis a-a brewed is OPE. Due to the specific configuration of the cooking site Cam profiles 25A, 25V, 45A, V pressure compression coffee and water supplied into the cooking chamber, on the opposite surface of the piston 21 and controlsa 41, will be largely balanced by the forces of reaction, which will be created between the fingers 23, 43 and the respective Cam profiles 25A, 25V and 45A, V that described above. Therefore, boiling may occur in any of the angular positions between the position according to figure 9 and the position according to figure 10, without taking any specific measures for holding the swivel unit 13 is locked in position and, in particular, without the pressure inside the cooking chamber, which creates a torque on the motor shaft, which is sought to be changed to reverse the movement of rotation of the engine and, therefore, sought to bring the swivel arm 13 back into the initial position according to Fig.7.

As soon as stage cooking is completed, the movement of the swivel unit 13 will be reversed and the node itself will be transferred from the provisions of cooking in the unloading position for unloading the used coffee BEHOLD, shown figure 11. When the finger 23 occupies the position corresponding to the end 25Y two grooves of Cam profiles 25A, 25V, formed by the grooves, and therefore itself then the Yan takes the position of maximum approach to the inlet of the installation space 19. In practice, the front surface of the filter 31 is flush with the cylindrical side surface of the swivel unit 13. A scraper provided in this area may be used for scraping the used coffee from the surface of the filter 31.

During the reverse movement (clockwise rotation when looking at the figure) of the provisions of cooking to the discharge position under 11 swivel arm 13 through a shorter additional parts 53A, V leads controlling 41 back into its resting position, as shown figure 11. This will be achieved by axial pressure rectilinear edges 57A, 57B on the finger 43. Varying the length of the optional parts 51A, 51B report and 53A, V leads to the liberation of kontrolna 41 by means of additional parts 53A, V in the resting position according to 11 and to re-capture by longer optional parts 51A. 51B report during the reverse movement from the position according 7 to the position according Fig, 9 and 10.

Variant of implementation of the design according Fig-18

On Fig-18 presents the second version of the implementation design of the cooking unit according to the invention. The cooking unit according Fig-18, again generally designated by the number 3, may also be entered in a machine for preparing coffee of this type, which is shown in figure 1, or in other machines,and even professional type, or even in an automatic dispenser or vending machine, or something similar.

In this embodiment, the design of the cooking unit 3 has a pair of fixed plates A and 109B are connected to each other by means of transverse elements 111, so as to form a support structure that can be extracted from the machine for making coffee. Between the fixed plates A, 109B are the piston 113, the installation location 115, in which slides the piston 113 and the inside of which is formed of the cooking chamber, and controlling 117. These three elements (piston 113, the installation location 115 and controlling 117) make reciprocal movement to complete cooking. From the foregoing description it will be clear that in a possible embodiment, the design of the piston 113 and the installation location 115 make a motion of rotation and translational movement, while in one embodiment, controlling 17 performs only forward movement.

Moving three elements 113, 115, 117 is controlled by means of Cam profiles. On the fixed plates A, 109B provided the first group of the fixed Cam profiles. In this embodiment, the design of both plates A, 109B have Cam profiles, with a fixed Cam profiles are provided in these plates are C relnum a reflection of each other. Therefore, after you have described the sections of the plate 109B, it will be clear that the plate A are profiles which are their mirror image. More precisely, the group of stationary Cam profile includes a first Cam profile 121 to control the movement of the piston 113, the second fixed Cam profile 123 to control the movement of the installation space 115 and the third Cam profile 125 to control the movement of kontrolna 117.

Fixed Cam profiles shown in the front view on figa on which one of the fixed plates A, 109B presents isolated from other mechanical parts.

Inside the Cam profile 121 of the sliding contact element V formed with a transverse finger, in fact orthogonal to the axis B-b of the piston 113 and the cooking chamber. Therefore, the finger V orthogonal to the stock A piston 113. By creating a dual channel 121 on two plates A, 109B finger U give direction at both ends of the Cams formed by the grooves.

To the installation location 115 is attached fingers A, preferably opposite to each other and coaxially with each other, which engages with the two Cam profiles 123, preferably identical, and are located on two stationary plates A, 109B.

Finally, on concorse 117 motionless for repleni opposite and preferably coaxially fingers or sliding blocks 117A, which engages with Cam profiles 125 two stationary plates A, 109B. More precisely, the fingers 117A mounted on U-shaped bracket 117V, fixed relative to kontrolny 117 and possibly forming a single with him part.

On the outer side of the fixed plate A, 109B are two disk A, V forming Cams, rotating around a common axis And coinciding with the axis of the holding plates A, 109B. In one embodiment, the implementation of the design of each rotary Cam or disk A, V bears group rotary Cam profiles, which preferably are in fact mirror images of each other. Next will be described the Cam profiles of the disk or Cam V. If we turn specifically to figv (which shows the front view of one of the rotary Cams) and Fig, according to them on disk or Cam U are the first rotary Cam profile 133 to control the movement of the piston 113, the second rotary Cam profile 135 to control the movement of the installation space 115 and the third rotary Cam profile 137 to control the movement of kontrolna 117. As it was already quite clear, in particular from Fig, the opposite ends of the finger V fixed cross plate A, 109B so as to engage not only with two stationary the mi Cam profiles 121, but with the rotary Cam profiles 133. Almost the same can be attributed to two opposite fingers A, fixed relative to the installation location 115, which act through the Cam profiles 123 provided on the fixed plate A, 109B, and engages with the movable jaw profiles 135, secured on the rotary Cam disks A, B. The opposite fingers 117A, fixed relative to kontrolny 117, cross groove or Cam profiles 125 plates A, 109B and also engages with Cam profiles 137 rotary Cams A, M.

Each of the elements 113, 115 and 117 is engaged principally through the respective fingers, acting as contact elements, with two pairs of Cam profiles, with each pair contains a fixed profile and profile, rotating around a common axis A-A. In this case the mutual rotation of the fixed plate A, 109B and disks or rotary Cams A, B provides control of translational and/or rotational movement of the elements 113, 115, 117, and the laws of motion, which will later be described in more detail with reference to the sequence Fig-18.

The movement of rotation of the Cams A, B can be provided, for example, by creating a perimeter gear (in Elam indicated by the position 131D on Fig for Cam V), with which engages a pair of gears driven by the engine (one of which is indicated on Fig position 132). It is not excluded alternative solution, for example, axial motion transmission.

In the case of the configuration according Fig brewing unit 1 is in the first position, in which coffee is loaded into the open the cooking chamber, i.e. in the space formed by the cylindrical wall of the seat 115 and the end formed by the cylinder and piston 113. The piston 113 is equipped with a filter similar to the filter 31 of the piston 21 variant of the design shown in figure 1-11, and it has a similar system for the collection and production of the beverage (coffee), obtained by extracting aromatic compounds from ground coffee, loaded into the cooking chamber. But instead of that shown in the above-mentioned embodiment, with ControlNet 117 is connected to the tube for supplying hot water under pressure. There is the possibility that changes in the reverse link relating to the supply of hot water and a supply of coffee.

In the position according Fig finger V, fixed relative to the piston 113 is in engagement with the Cam profile or Cam 121 formed by the groove in the place corresponding to the curved section of A the profile 121, which is located at a maximum distance with respect to the axis of rotation a-a of the rotary Cam or di the Cove A, W. Passage through the thickness of the fixed plate A, 109B finger V also engages, as mentioned above, with the lobes formed by the grooves or Cam profiles 133 in the place corresponding to the top A located between the actual radial rectilinear part V and actually rectilinear part S, tilted with respect to the radius of the Cam profile 133.

Fingers A, fixed relative to the installation location 115, engages with the curved part 123A of the respective fixed Cam profiles or Cams 123 formed by grooves in the place corresponding to the curve or the top of A rotary Cam profiles or Cams 135 formed by the grooves.

Finally, the fingers 117A, fixed relative to kontrolny 117, engages with the rectilinear radial Cam formed by the groove or Cam profile 125 in the intermediate point of the Cam profile or Cam 137, formed by a groove, which actually has the shape of part of a spiral around the axis of rotation a-a of Cams A, B.

On Fig presents the angular position attained the cooking unit 1 after the first turn (in a counterclockwise direction, when viewed in the figure) to the position for cooking. In this configuration, the axle Is In the cooking chamber coincides with the axis of the of kontrolna 117, and the latter can be inserted into the installation position 115. The angular offset from the position according Fig in the position according Fig provide by bringing into rotation through the disks or rotary Cams A, V fingers W and A, fixed relative to the piston 113 and to the installation location 115, through the engagement of the fingers with Cam profiles 133 (for piston 113) and 135 (for installation space 115). From the position according Fig in the position according Fig finger V will be displaced by the Cam profile 133 on the way A Cam profile 121, in fact, concentric with the axis a-a so that the piston is essentially doing a simple rotational movement. Similarly, the fingers A track actually round section, concentric with the axis a-a Cam profile 123. Therefore, at this stage of the installation cavity 115 also actually makes the movement of rotation without translational motion around the axis A-A.

Passing out according pig in the position according Fig, rotary Cams or Cam disks A, B make an additional rotation around the axis a-a that by turning the Cam profiles 133, 135 and 137 causes translational movement with respect to each other and to the stationary plates A, 109B three elements: piston 113, the installation space or cooking Kama is s 115 and controlsa 117.

From the comparison Fig and 15 can be noted that, in particular, the piston performs translational motion so that the finger F will be shifted along the radial rectilinear part V fixed Cam profile 121, when this movement is caused by the axial force exerted on the finger part S rotary Cam profile 133. A pair of fingers A, fixed relative to the installation location 115 is moved along the radial actually straight part V fixed Cam profile or Cam 123 formed by the groove, the axial force on the fingers A created by means of a Cam profile or rotary Cam 135 formed by the groove, namely, the axial force exerted curved part 135B this profile. Radial movement to the axis of rotation a-a of Cams or disks A, B of kontrolna 117 along the rectilinear Cam profile 125 provide the axial force generated by a spiral rotary Cam profile 137.

The configuration according pig is that controlling 117 entered in the installation position 115 in an amount sufficient to cover through appropriate seals of the cooking chamber, the boundaries of which are defined between opposite front surfaces of kontrolna 117 and piston 113, and Bo the new cylindrical surface of the installation space 115. In this position in the future you can do the cooking. This is the position in which the cooking chamber has a maximum volume. On subsequent pig and 17 show two additional mutual position of elements 113, 115, 117, secured through further reciprocal translational movement of these components. The translational displacement components 113, 115, 117 again perform in the axial impact rotary Cam profiles or Cams 133, 135 and 137 are formed by grooves on the fingers V, A and 117A, which give the direction along the fixed Cam profiles or Cams 121, 123 and 125 formed by the grooves.

More precisely, the configuration according Fig obtained by translational movement along a common axis In kontrolna 117 and the piston 113 in mutual approximation of the respective front surfaces, while the installation position 115 remains in a stationary position, which corresponds to the end of the straight part V Cam profile 123. This position will be saved due to the fact that part 135B rotary Cam profile 135 actually concentric relative to the axis of rotation A-A. From Fig to Fig there is a further move to approach to each other of kontrolna 117 and piston 113, and again in the translational motion of both e the cops relatively fixed plate A, 109B management through the implementation of a rotational movement in the clockwise direction (as viewed in the figure) of the rotary Cam A, M.

From this it follows that in this case, the brewery has a large number of possible cooking provisions: provision according pig get the cooking chamber with a maximum capacity; in position according Fig cooking chamber has an intermediate size; according pig cooking chamber has a minimum size. The latter can be used, for example, to prepare one serving of espresso, while the position according Fig can be used, for example, for the simultaneous feeding of two espresso when you perform one of the cooking operation. Position according Fig can be used for the preparation of freshly brewed coffee. In all cases, the number of dispensed coffee inside the cooking chamber can be adjusted known per se method.

It should be noted that various provisions of the melting unit, corresponding to different volumes of the cooking chamber, just run through the configuration of the Cam and the rotation angle of the rotary Cam, using various angular positions of the rotary Cams A, B form different cooking volumes. In the same way in the previously described embodiment, design is and (1-11) the volume of the cooking chamber can be precisely controlled by the angular position of the swivel unit 13 due to the configuration of the Cams 45A, V; 25A, 25V.

All provisions of a significant proportion of reaction forces on the piston 113 and controlsa 117, required for resistance to the internal pressure of the cooking chamber, down through the Cam profile, which therefore pass voltage directly on the stationary structure A, 109B, significantly reducing the tension of torsion on the motor shaft, which transmits the rotary movement kulacom A, M.

As soon as cooking is made in particular of the possible intermediate positions, starting with position according Fig until the position according Fig, brewery dump the used coffee from the cooking chamber. This stage involves unloading for a reversal of the movement of rotation of the Cams A, B until the piston 113 is brought into the installation space 115, and controlling 117 is according Fig. This angular position is reached by passing through the discharge position of coffee (Fig).

The configuration of the stationary and movable Cam profile such as to cause reverse rotation offset kontrolna 117 by means of a translational movement in the position of maximum distance from the axis of rotation a-a, and the angle of rotation installation space 115 and the piston 113 from the position according Fig in the position according Fig with the chief who is the axis-angle α and translational motion as the installation space 115, and piston 113 along the axis In such a way that the piston 113 is located so that its head will be flush with the alignment place 115 or will slightly protrude from it in order to push outward from the installation place the used cartridge of compressed ground coffee. In the discharge area may be provided with a scraper to facilitate the branch coffee from the front surface of the piston 113.

From the comparison Fig and 18, in particular, one can notice that in the unloading position installation position 115 is subjected to deflection or rotation of approximately 80° with respect to vertical and translational movement, which causes its displacement, the piston will be subjected to such a turn of approximately 80° with respect to vertical position according Fig and will be promoted through a progressive move by the value actually corresponds to the axial length of the installation area 115. Reverse movement of approximately 80° from the position according Fig leads brewery back into the position according Fig, ready for the next cooking cycle.

Variant of implementation of the design according Fig-39

On Fig-39 shows a variant implementation of the design, similar to the variant according Fig-18, with some structural changes, which is hereinafter will be described in more detail. Parts which are similar or equivalent parts according Fig-18 labeled in a similar position.

First, you can see that in the embodiment of the design shown in Fig-39, a fixed plate A, 109B, which provide a fixed Cam profiles 121, 123 and 125 are located on the outer side, while the movable Cams A, B are located on the inner side of the fixed plate.

Instead of gears included in engagement with the gears provided on the Cams, motion to rotary kulacom A, B pass through the hexagonal shaft 134 (Fig and 29), fixed relative to one of the two Cams A, B, while the other of the Cams A, V (Fig and 27) is limited in relation to the first fist through the transverse elements 136 and has a hub 132, which forms a connection and support with the corresponding fixed plate. Hexagonal shaft 134 is connected to the shaft of the motor (not shown)forming part of the machine, in which the inserted node. It will be understood that the mechanical connection between the cooking unit and the motor may take a variety of forms, for example, a profile, formed by a groove, or something else.

The configuration of Cam profiles actually like (see, in particular, Fig-29) Cam profiles of the previous variant design the products and are denoted by the same positions. On the other hand, as regards, in particular, the Cam profile 137, you will notice that it is a dual profile (see, in particular, the local cross-section according figa), that is, each Cam A, V has a double groove 137 which engages a corresponding double contact element, limited by ControlNet 117. In this case, resistance of the Cam stresses that will be passed to it as a result of the pressure generated in the chamber during cooking increases.

In addition, a portion 135B of the Cam 135 is not concentric with the axis of rotation a-a of Cams so that when the closing movement of the cooking chamber after engagement of kontrolna and installation space 115 to each other, when the Cams A, B make the rotation installation position 115 is displaced along the axis a-a of the piston and controlsa.

The fixed Cam 125 to kontrolna 117 more and not geared finger, fixed relative to kontrolny 117, and directly bracket 117V, which in this case has no fingers 117A. In this embodiment, the structure to engage the bracket 117V of kontrolna with Cams 117 137 double groove provided for oscillating the contact element 117S (Fig, 20A) for each double groove 137. Oscillatory contact element 117S has two opposite additional portion 117D that one who engages with each of the two grooves of the respective Cam 137.

In addition, the cooking unit according Fig-39 contains a mechanism to facilitate the unloading of the used product (tablets of ground coffee) after cooking. This mechanism includes an oscillating surface 161, pivotally attached by means of two oscillating levers 163 to the two stationary plates A, 109B. The fluctuation of the surface 161 is controlled by means of the coupling rod-cross member 165 is pivotally attached at one end to one of the two oscillating levers 163 through the slits A and finger A. At the opposite end of the connecting rod-cross member 165 has a finger F, which engages with the Cam profile 167. Stationary plate A has a rectilinear groove 168 (Fig), in which the connecting rod of the cross member 165 is directed in its movement controlled by the Cam 167.

As you can see from the movement of the cooking unit shown in Fig-22 and 30, 33, 35, the Cam 167 controls the oscillating movement of the surface 161 so that the coffee tablet (RS in Fig), or any other amount of product that comes out of the cooking chamber at the end of the cycle, will be unloaded in a not shown container placed at a distance from the brewery.

The mechanism described above and intended for unloading used tablets, can be applied in the previously described in which the options for the implementation of the design.

On Fig-35 shows in detail the circuit for supplying hot water to the brewing unit and for feeding coffee from the cooking chamber, and presented her work during the cooking cycle. This circuit can be used in the previously described embodiments, implementation of the design.

In particular, ControlNet 117 is connected to the valve for regulating the back pressure indicated by the position 169 and mounted on the pipe 171 to the production of coffee, which is communicated with the camera located behind the filter 172, manufactured, for example, of a perforated metal plate, which prevents the output of the solid product (for example, ground coffee from the cooking chamber during the cooking cycle. The valve 169 regulation of the back pressure, for example, can be constructed as described in document U.S. US In 6382083.

Fixed relative to kontrolny 117 connected 173 for feeding hot water from the boiler (not shown, but is a known boiler type). Position A marked one end of the connector 173 is connected to the supply pipe coming from the boiler. Fixed relative to the installation cavity 115 is the first part A telescopic tubes, the second of which is indicated by the position V, fixed relative to the piston 113. Two parts A, W telescopic who ruby always connected to each other (see, in particular, Fig), with some V slips inside part A, tracking the movement of the piston 113 in the installation location 115. Instead, the connector 173 may be geared and rescaled in relation to part A depending on the relative position of kontrolna 117 and the installation space 115. When the connector 173 geared in part A telescopic pipe A, V (Fig), is formed by a continuous channel for the hot water connection A towards the bottom part of the stem or rod V piston 113. The stem center is made hollow to provide a passage of hot water along the rod to the cooking chamber. This position will be obtained, when the parts 113, 115 and 117, which form the cooking chamber, will be aligned in the axial direction and are meshed with each other. In the position in which the loading of the product in the cooking chamber (Fig-32), and in the position in which the discharge of the used product (Fig), instead of what is specified, the connector 173 is rescaled telescopic pipe A, M.

In some embodiments of the invention, the piston 113 can be configured such that, in particular, is shown in Fig-39. It has a perforated lid 201, fixed relative to the shaft 203, which slides in the axial seat 205 made in the body of the piston 113 and the rod or stem A. The cover 21 are perforated in place, indicated by the position A, for the passage of hot water under pressure coming from a telescopic pipe A, V, and for the distribution of water in the ground coffee (or other product to make the drink), compressed inside the cooking chamber formed between the piston 113, ControlNet 117 and the installation location 115. On the end opposite the cover 201, the piston rod 203 has an annular seal 207, for example the O-ring that creates a seal on the seat 205, providing the sliding.

Providing the sliding seat 205 is in communication with the telescopic pipe A, B through the opening 209 formed in the rod A piston 113.

Cover 201 is elastically loaded by the elastic element, for example working on a compression coil spring 202 to the position specified on the distance from the body of the piston 113. The body of the piston 113 is provided with edge seal 204, which creates a seal on the inner cylindrical surface of the installation space 115, in which slides the piston. When the cooking chamber is closed from inside her freshly ground coffee, the relative movement of the piston 113 and controlsa 117 causes compression of the spring 202 and, therefore, the cover 201 is supported on the housing front part of the piston 113, while the seal 207 is moved under the hole 209, which for the passage of the fluid connection is NENO telescopic pipe A, W. In this case, when the seal 207 is under the hole 209, the latter will be communicated with the space having a circular cross-section, between the landing place 205 for axial sliding and stem 203 of the cover 201. This seat actually has a diameter that is larger than the diameter of the rod 203, the latter is directed through the upper sleeve 210 and the bottom part of the seat 205 to slide, which has a cross-section with a smaller diameter so as to provide sealing with O-ring 207.

When this water is fed through connector 173 through the telescopic pipe A, W and along the annular space between the landing place 205 for axial sliding and rod 203, and she comes to the space behind the cover 201. Through holes A cover 201 water reaches the cooking chamber and passes through the ground coffee compressed in the cooking chamber.

Once the preparation of the drink is finished, when you open the cooking chamber cover 201, pushed by a helical spring or other equivalent elastic element 202, is shifted from the body of the piston 113. When this o-ring 207 is displaced above the holes 209 and provides the connection holes 209 (and, therefore, a telescopic pipe A, V and reboiler) with a hollow space 211A provided at the bottom h is STI rod A piston 113. The hollow space 211A is connected with the external environment through two outlet W. The rest of the water in the feed pipe between the boiler and the opening 209 is thus released to the outside, and the increase in volume of the cooking chamber due to the relative movement of the piston 113, the installation space 115 and controlsa 117 before opening the cooking chamber does not cause a suction action within the hydraulic circuit. The pressure inside the cooking chamber reaches atmospheric pressure through the connection provided through the seat 205, hole 209, space 211A and holes W. The seal 207 in fact (when running on the compression spring 202 is not compressed) is in position seats 205, in which the latter has a diameter, the larger diameter of the seal 207.

In the case of the above-described mechanism, it is possible to ensure the connection of the cooking chamber with the heater due to the pressure of the compressed ground coffee to the cover 201, the pressure overcomes the elastic force of the spring 202 and, therefore, leads to the displacement of the seal 207 hole 209. At the same time, the fact that when you open the cooking chamber pressure will be reset, which allows the discharge of residual water in the hydraulic tube between the piston 113 and the heater. In the absence of other devices designed system shall not allow you to perform the washing cycle and/or heat in the cooking chamber in the absence of coffee, since under the action of the axial force of the spring cover 202 201 will remain elevated relative to the body of the piston 113, even when closed cooking chamber and, consequently, the seal 207 will not close the passage between the hole 209 and the underlying hollow space 211, communicating with the external environment through the holes W.

In order to ensure that the operations of washing and heating or, in any case, to allow water flow through the cooking chamber in the absence of ground coffee, in some embodiments, implementation of the design according to the invention with the piston 113 are connected two of the RAM 213 (see, in particular, Fig, 39), the prisoners inside seats 215 for sliding transverse with respect to the housing 205 for axial sliding, and secured in the bottom part of the housing or the piston rod 113. Seats 215 connected for sliding in the front part of the hollow space 211A, and holes W traverse these seats. Sliders 213 provided with annular seals 217, installed near the ends of the sliders 213 facing the space 211A. The annular seal 217 is installed in such a way that depending on the axial position occupied by the slide 213 in the corresponding cross the seats 215 to slip, they open or close the connection is tion between the hollow space 211A and holes W. On Fig sliders 213 are drawn out by means of respective springs 219 and are in such a position that seals 217 do not close the channel between the hollow space 211A and the discharge or outlet holes W. On Fig, instead of this, floaters, 213 preloaded in the axial direction inside seats 215 for sliding, sealing 217 close the channel between the hollow space 211A and outlet or discharge openings W.

To control the sliding movement of the sliders 213 they are made with outer ends 213A, which affect the front Cam profiles (for simplicity of illustration, generally indicated by the position 214 only pig and 39), fixed relative to the rotary kulacom A, V to preload slide inside their seats. The reverse movement will be executed by the coil springs 219. Cam profiles to control the movement of the sliders 213 are located on Cams A, B so that the sliders 213 is in the closed position (in which they interrupt the connection to the exhaust holes V), when the cooking chamber is closed and at any position closing the camera and any camera condition (filled or emptied).

Thus, it becomes possible to create a circulation of hot water through the cooking chamber, even without nakolotogo coffee. Instead of this, when the cooking chamber is not in the closed position, the holes W is connected to a pipe for supplying water and allow leakage of the circuit remaining water.

Variant of implementation of the design according Fig-45

On Fig-45 is a cross-section of another version of the implementation design of the cooking unit, similar to the previous variant according Fig. Similar or corresponding parts are denoted by similar positions and are not described in detail here. Variant according Fig-45 differs from the previous version according pig in two respects.

According to the first aspect of the cooking unit shown in Fig-45, provided with additional working position, best shown in Fig and 42. This is an additional operating position is intermediate between a position for loading coffee, shown in Fig, and provision for cooking, shown in Fig. In the intermediate position, the seal 204 surrounding the body of the piston 113 is at a distance from the installation space 115, so that will create a round hole between the piston 113 and the installation location 115. If hot water is supplied to the cooking chamber in this position, the coffee powder in the brewing chamber, creates a back pressure that prevents the flow of water. Due to the fact the water flows through the annular opening, surrounding the piston 113, and therefore heats all the water channel from the water heater to the bottom of the cooking chamber.

Once submitted sufficient amount of hot water for heating the melting unit, the latter is one of the provisions for filing of coffee, shown in Fig, 44, 45. Now a continuous flow of water passes through the compressed coffee powder in the brewing chamber, and creates a drink from the coffee powder. Three positions shown in Fig, 44 and 45 correspond to the three different conditions of supply: according pig get the regular coffee (so-called filtered coffee or "American coffee") at a fairly low water pressure and slightly compressed coffee powder; position according Fig is the position at which receive two espresso (double espresso) within the same cooking cycle; finally, on Fig shows the position of the cooking unit for a single espresso.

As mentioned previously, the outlet can be installed adjustable back pressure valve, which is connected to the cooking chamber to maintain the desired pressure in the cooking chamber. In a variant of the construction according Fig-45 created layout with dual hole for optimum pressure control. This arrangement with dual hole that is used and the children are described below, can also be used in any of the previously described designs. To show the layout with double hole, the cross section according pig taken place, slightly different from the cross section according to the rest of Fig, 41, 43, 44, 45. The latest figures show a first outlet for a drink created in the body of kontrolna 117, and this hole to form a through channel 301. Channel 301 has a first portion with a larger diameter and a second portion with a smaller diameter, and these two parts are connected to each other in the transition zone 301A. Pipe 303, still held in relation to the design A, 109B, telescopically located in the channel 301, so that when controlling 117 is moved in relation to the design A, 109B, pipe 303 and the channel 301 slide relative to each other. Channel 303 is provided with a first o-ring seal 305 and the second o-ring seal 307, located respectively near the far end and the intermediate location of the pipe 303. The far end of the pipe 303 is closed at the front end and is made with a radial hole 309, and this hole is located behind the seal 305.

Thus, the tube 303 may provide a message to the inner part of the cooking chamber with the channel 311 to release coffee, located on the upper part of the structure A, 109B. When cooking and the regatta takes the position according Fig, holes 309 are located between the cooking chamber and the transition zone A channel 303, so that the coffee beverage received in the cooking chamber can flow through the holes 309 in the channel 303, and from there into the exhaust channel 311. The cross-section of flow is such that at the outlet of the cooking chamber will be effectively ensured zero gauge pressure.

The second inlet of the drink created in the body of kontrolna 117 and the indicated position 315 on Fig. The second hole 315 is formed by a channel in which is telescopically tube 317. Like the tube 303, the receiver 317 as a whole hold by construction A, 109B. The device of the channel tube 315 and 317 connects the inner portion of the cooking chamber with valve 319 kontrolna. This valve can be adjusted and it can be constructed as described in U.S. patent No. 6382083, the content of which is introduced here by reference thereto.

When the cooking chamber is closed in the position shown in Fig, coffee flows through channel 301, 303, which creates less resistance to flow. If, on the contrary, the cooking chamber is closed in the position shown in Fig or 45, the flow through the channels 301, 303 is prevented, because the holes 309 are located behind the seal 305 and the latter overlaps the narrower part of the channel 301. Therefore, under the action of axial pressure is tion, generated by the pump of the machine serving to supply water, coffee will be forcibly fed through hole 315, tube valve 317 and 319 of the back pressure.

Thus, depending on the position of the cooking chamber will be created different conditions of pressure, this will cooking with getting different quality.

Next will be described the control valve back pressure according figa-46D.

On figa-46D shows the new back pressure valve for a cooking unit according to the invention. The valve is shown isolated, but it should be clear that the valve can be located on the exhaust channel through which submit a coffee beverage prepared in the cooking chamber of the cooking unit. This valve may be located, for example, on the pipe 171 to the production of coffee (Fig).

The valve 400 back pressure is made with the channel 401 for supplying coffee, which is communicated with the cooking chamber, while it bears controlling melting unit, such as controlling 117. The channel 401 may telescopically slide within the pipe for the production of coffee, for example pipes 171, so that controlling 117 can move relative to the support structure, which holds the valve 400 backpressure.

The back pressure valve 400 includes an outer casing 403. According to some of valentinorossini design in a constructive purpose the outer body 403 consists of two parts A, W. In case 403 slidable is the slider 405. The slider 405 can slide according to the double arrow f405 to selectively take one of several operating positions, which are described next. In some embodiments, implementation of the design of the slider 405 has an end 405A with the screw thread, which can engage the manual actuating element or servo motor or something similar (not shown) for controlling the sliding movement of the slide and the exact location of the slide in the selected one of a large number of provisions in the housing 403.

Along its side wall body 403 has a hole 407 for the supply of coffee in communication with the channel 401, hole 409 for the production of coffee in communication with the tip or spout from which shall pouring coffee and hole 411 for pressure relief. In addition, in the front part provided with front opening 412 for air intake. Inner diameter part A housing 403 is changed stepwise, and with a larger diameter in an area where the discharge hole 411, with an intermediate diameter, where there is an inlet 407 for coffee, and with a smaller diameter in the front zone.

The slider 405 has an axial cavity 413, ending with the front hole A and a built-in two groups of radial holes 415, 417, Otto is related to each other in the longitudinal direction. On the outer surface of the slide are o-ring 419, 421, 423, applicable respectively to the three parts of the variable-diameter hull A. Front opening A slider 405 is closed by a shutter or the closing element 427, elastically pressed against the slider 405 through working on the compression of the spring 429. The spring 429 hold between the gate 427 and front sliding a finger 431, equipped with o-ring seal 433, which closes the front opening 412 for air intake. Finger 431 equipped with thrust ring A and end part projecting out of the housing 403, which given this configuration is to create a guiding action in the hole 412 for air intake, but to ensure that the air inlet when the finger 431 is moved to the left (in the figure)to inform the internal part of the housing 403 and slider 405 with the environment in explained in the following order.

The described valve 400 operates as follows. On figa the slider 405 is located in the rightmost position (if you look at the figures), that is, with the spring 429, in the position of maximum compression. Sealing ring 423 is moved over the plot hull 403 having an intermediate inner diameter and the radial holes 417 communicated (through the cavity hull W) with a hole 409 for the production of coffee. The intake hole 401 for copacobana through radial holes 415 of the internal axial cavity 413 of the slider 405. Thus, the coffee can flow from the inlet 401 to the outlet 409. The pressure in the channel 401 is actually equal to the ambient pressure (i.e. boiling occurs at virtually zero backpressure). The flow of coffee through the discharge hole 411 is prevented by the sealing ring 421, and the spring 429 stores as a front opening A and hole 412 air inlet in the closed position.

According figv the slider 405 is slightly displaced to the left (as viewed in the figure)so that the radial holes 415 and 417 communicated with the channel 401 and the internal cavity 413 of the slider 405. Spring 429 is compressed slightly less than Figo. Water flows through the cooking chamber and, consequently, the brewed coffee flows through the channel 401, the radial holes 415, 417, axial cavity 413 and the outlet 409, when the back pressure at the outlet of the cooking chamber, i.e. in the channel 401, reaches the value determined by the force generated by the spring 429, i.e. when it creates pressure on the shutter 427 force greater force generated by the spring 429.

According pigs the slider 405 slightly displaced to the left (as viewed in the figure) with respect to figv, so that the spring 429 is compressed to a lesser extent and, consequently, the pressure at which the coffee flows through the channel 401, less than figv (but greater than n is figa, where the back pressure is not required). Both of figv and S discharge channel hole 411 and 412 air inlet closed.

Thus, the position according figa is the position in which is brewed regular coffee, in fact in the absence of back pressure, so that you will get less strong drink without "caps". Stronger or less strong espresso get through valve 400 is adjusted in position according to the figures, respectively V and S.

The position of the RAM 405 can be selected manually by the user or automatically. In some embodiments, implementation of the design this can be accomplished by a screw mechanism or something similar. In some preferred embodiments, the selection pressure can be ensured by means of the servo-mechanism by the user through acceptable for a user interface, such as touch screen, one or more buttons or something like that. Preferably, the position of the valve 400 backpressure could be correlated with the volume of the cooking chamber, so that the most suitable volume of the cooking chamber was selected for each back pressure set by the user through the valve 400.

At the end of the cooking cycle, regardless of what the position was occupied by the slide valve 405 400, the slider is moved polozhenie according fig.46D, that is, will be completely moved to the left side (in the figure). In this position, the hole 412 for air inlet is opened and creates a channel for air flow through the interior of the hull W, axial cavity 413 of the slider 405, a radial hole 415 and the discharge hole 411. The pressure inside the cooking chamber will be reset and the air will come in the hydraulic circuit of the cooking unit, providing the opening of the cooking chamber.

Variant of implementation of the design according Fig-50

On Fig-50 presents another variant of implementation of the construction of the cooking unit according to the invention. This option is similar to the variant shown in Fig-35, but the fixed Cam profiles otherwise formed to provide a slightly different sequence related to the movement of the cooking unit. The main difference is that in the variant according Fig-50 position, in which the used coffee powder discharged from the cooking chamber, is located on the opposite side from the position of the discharge in the previously described embodiments, implementation of the design (Fig-35) in relation to the position for loading coffee.

Because the cooking unit according Fig-50 in many ways actually similar to the previous options, next will be mainly described the distinctive signs and, make up the difference with the previous versions, with distinctive characteristics that are similar, identical or equivalent to the distinctive features of previous versions, described in more detail will not be. Further, it should be noted that the cooking unit according Fig-50 can be equipped with any of the previously described valves regulate the pressure.

In the embodiment, the structure according Fig-50 brewery again consists of a pair of fixed plate, which is secured by a fixed Cam profiles, each stationary plate combined with a rotary Cam, where the Cam profiles. On Fig shows a front view of one of the stationary plates, indicated by the position 500. Opposite the fixed plate is actually symmetric, at least in relation to the described Cam profiles.

The stationary plate is provided with three fixed Cam profiles 501, 503 and 505, substantially performs the same function as the fixed Cams 121, 123 and 125 according Fig-35. More specifically, the Cam profile 501 controls the movement of the piston of the cooking chamber, the Cam profile 503 controls the movement of the installation space, in which slides the piston of the cooking chamber, and a Cam profile 505 controls the movement of kontrolna. However, in ecomarine Cam profiles 501 and 503 are formed mainly as closed channels, that is, endless curves, in which the slide corresponding pushers or fingers.

In addition, each of the Cam profiles 501 and 503 has a spring-loaded tabs that protrude inside the channels to prevent some movement of the pushers or fingers, which are inextricably with the piston and the installation location of the cooking chamber. More specifically, the Cam profile 501 has a first protrusion in the form of a leaf spring A free end V acting inside the channel, forming a Cam profile 501. The form of an elastic or spring ledge A best shown in cross-section according figa. Next will be more clearly explained that the elastic protrusion A limits the movement of the finger, which controls the movement of the piston. The second elastic protrusion in the form of a leaf spring S is located along the Central portion 501D channel Cam profile 501. The ledge S has a free end E, and its configuration is best shown in the cross section according figv. The Central portion 501D channel connects the lower part with the upper part of the Cam profile 501. The upper part is generally indicated by the position of the 501F and has the configuration actually concave outward. The lower part has a configuration, in fact, convex outwards, while it consists of two sections 501G 501H and and elastic protrusion A location is N. thus, that will prevent the movement of the finger, sliding in the channel 501, section 501G in section 501H, and he will be forcibly relocated from section 501G to the intermediate portion 501D Cam.

Similarly, a fixed Cam profile 503 contains the lower section A with the configuration with the concavity facing outwards, and oriented toward the Central axis a-a melting unit, around which the rotary Cams 510 commit rotation-control motor (not shown). A closed path of a Cam profile 503 completed convex outwards shaped upper section of the profile or part B, along which is located a ledge IS in the form of a leaf spring. The free end of the 503D hanging out inside the Cam profile 503 in the form of a channel, which is best shown in the cross section according figs. Actually straight section A Cam profile passes from section V to the Cam profile 505, starting from the place, which actually corresponds to the free end of the protrusion S. The ledge S hinders the movement of the corresponding plunger or finger moving along the Cam profile 503, along section V right to left for the linear part of the 503D and forces the finger to go in the straight part of the 503D Cam profile, which will be explained hereinafter in more detail.

On Fig submissions is a front view of one of the two pivotal pawls which provided profiles. The rotary Cam is indicated by position 510. On the rotary Cam is formed of three profiles. Profiles of the rotary Cam marked positions 533, 535 and 537 and have virtually the same configuration and perform the same function as the Cam profiles 133, 135, 137 according Fig, 28. Therefore, a detailed description of these Cam profiles will not be given.

Like the version of the design according Fig-35, in the variant according Fig-50 brewery also includes (see, in particular, figa-49D) rotating and performing translational movement of the piston 543, similar to the piston 113, the piston is enclosed in a rotating and making a forward movement of the installation location 545 corresponding to the installation location 115 and controlling 547 corresponding to kontrolny 117. Finger or pusher W corresponding to the finger V, inseparable from the piston 543, and the finger forms a contact element, which is engaged with the fixed Cam profiles 501 two opposite fixed plate 500 and with two profiles 533 rotary Cam 510. Similarly, the installation place 545 equipped with the opposite fingers or contact elements A members in engagement with two opposite stationary Cam profiles 503 and two rotary Cams of the mi profiles 535. Controlling 547 is engaged with the fixed Cam profiles 505 and has pushers or contact elements IS included in engagement with the rotary Cam profiles 537.

The work described brewery next will be discussed in more detail, it will be made reference to the sequence figa-49D and the outline according pig, showing the path of movement of the fingers F and A.

On figa brewery presents the loading position. Installation position 545 is actually a vertical position, and the piston 543 is in the lower position within the installation space, closing its bottom part. The desired quantity of coffee powder load in the installation position 545 of the dosing channel, which is not shown. Fingers F are in the position of P0 along the section 501G Cam 501. Fingers A, inseparable from the installation place 545 are in a position of P0 along the section V Cam 503.

As soon as coffee is loaded into the installation location of the cooking chamber, the installation place 545 and the piston 543 by rotation of the Cam 510 is moved to the cooking position, shown in figv. The cooking position is changed in accordance with the quality of the coffee or the required amount of coffee that has already been described previously. Point P1 on the section 501D Cam indicates, for example, the position of the fingers V, when kotromanic filter coffee, and the point P1 on the section E of the Cam corresponds to the position of the fingers A. P2 section 501D Cam indicates the possible position of the fingers V when brewed single or double espresso, with the relevant provisions of the fingers A represented by a point P2 along the section A Cam 503.

The cooking position chosen by the desired rotation of the Cam 510 and corresponding rotation of Cam profiles. Due to the shape of the intermediate section or sections 501D and A Cam piston 543 and installation position 545 make a straight movement along their axes, which in the cooking position coincide with the axis of kontrolna 547. Last push on the corresponding straight-line trajectory through the fixed Cam profiles 505 and the rotary Cam profiles 537. This will prevent the movement of the fingers V along part or section N Cam by means of the elastic protrusion A, and it will prevent the movement of the fingers A along section or part V Cam by means of the elastic protrusion S.

As soon as cooking is completed, the used coffee powder should be unloaded. To provide a position for unloading, the piston 543 and installation position 545 must first be moved to the loading position and in an intermediate position, shown in figs. This movement is necessary for the of prehoda fingers W from the lower part 501G of the Cam to the top of the 501F of the Cam and to move the fingers A from top V Cam to the bottom of A Cam. On Fig the position of the fingers F and A in the proper Cams 501 and 503, corresponding to the position of the cooking chamber according figv indicated by the position P3.

Once reached the position according figv, the rotation of the plates 510 and respective rotary Cams will be reversed and fingers W, U begin to move respectively along the upper part or section 501F Cam 501 and the lower part or section A Cam 503, until it reaches the end position for unloading according fig.49D. Elastic protrusion S each Cam profile 501 prevents the input of the corresponding finger F in the intermediate section 501D of the Cam and forces him to follow the upper section 501F. In position for unloading according fig.49D installation position 545 oriented to the gutter or something similar (not shown) for collecting the used coffee and the piston 543 is moved to the hole positions for pushing coffee out of the installation space. The position of the fingers F and A in the respective Cam profiles when the cooking unit is in position for unloading according fig.49D marked on Fig position P4.

Out of position for unloading brewery again bring in the loading position (figa) by reverse rotation of the rotary Cam 510.

On Fig arrows connecting the various the points P1-P4, indicate the movement of the fingers.

It is clear that the figures presented not only imposing restrictions variant of the invention, which can be changed in respect of its forms and arrangements without deviating from the scope of the idea underlying the invention. A possible indication of the items in the attached claims is intended to facilitate their reading with reference to the description and to the figures and in no way limits the scope of protection represented by the claims.

1. The cooking Assembly for preparing beverages, in particular coffee, comprising:
installation position (115, 545)performing at least a rotational movement, in which the slidable posted by the piston (113, 543);
controlling (117, 547), interacting with the installation place (115, 545) and the piston (113, 543) to form the cooking chamber;
the Cam elements(121, 123, 125, 133, 135, 137, 501, 503, 505, 533, 535, 537) to control the movements of the installation space (115, 545), piston (117, 547) and controlsa (117, 547);
in this installation position (115, 545), the piston (113, 543) and controlling (117, 547) performed with the opportunity to take in relation to each other, at least one loading position for loading of products for the beverage, at least two different positions for cooking, corresponding to two different volumes of the cooking chamber is, and position for unloading, with the aim of discharging the used product, characterized in that the said Cam elements contain the first group of Cam profiles(121, 123, 125, 501, 503, 505), which is stationary relative to the support structure (A, 109B, 111), and a second set of Cam profiles(133, 135, 137, 533, 535, 537), which rotates relative to the support structure (A, 109B, 111) for controlling the movements of the installation space (115, 545), piston (113, 543) and controlsa (117, 547), the movement of the piston (113, 543) is regulated, at least, a fixed Cam profile (121, 501) and a movable Cam profile (133, 533), and
moving controlsa (117, 547) is regulated, at least, a fixed Cam profile (125, 505) and a movable Cam profile (137, 537).

2. The cooking unit according to claim 1, characterized in that each piston (113), the installation space (115) and controlsa (117) has a corresponding contact element (V, A, 117A), each contact element interacts with at least one fixed Cam profile and one rotary Cam profile.

3. The cooking unit according to claim 1 or 2, characterized in that the rotary Cam profiles(133, 135, 137, 533, 535, 537) located on a common rotary Cam (A, V, 510).

4. The cooking unit according to claim 1 or 2, characterized in that it contains a pair of fixed plates A, 109B), forming a support structure, each of them has a group of Cam profiles(121, 123, 125, 501, 503, 505), fixed relative to each other, which essentially mirror-symmetric, and a pair of rotary Cams (A, V, 510), located on the side of the fixed plate (A, 109B), with each rotary Cam has a profile group(133, 135, 137, 533, 535, 537), which essentially mirror-symmetrical relative to each other, moreover, the installation place (115, 545), the piston (113, 543) and controlling (117, 547) are located between the two fixed plates (A, 109B).

5. The cooking unit according to claim 4, characterized in that the rotary Cams (A, B) are held stationary plates (A, 109B).

6. The cooking unit according to claim 4, characterized in that the rotary Cams (A, V, 510) is located within the fixed plate (A, 109B).

7. The cooking unit according to claim 1 or 2, characterized in that the Cam profiles(121, 123, 125, 133, 1135, 137, 501, 503, 505, 533, 535, 537) have the form of grooves or channels.

8. The cooking unit according to claim 1 or 2, characterized in that the piston (113, 543) and the installation location (115, 545) performs a rotation motion and the translational motion, and controlling (117, 547) performs a translational motion relative to a stationary structure (A, 109B, 111), load-bearing.

9. The cooking unit according to claim 1 or 2, characterized in that it set the adjustment seat (115, 545) and the piston (113, 543) perform a movement of rotation around the first axis (a-a) rotational and translational movement along a second common axis (B-B) translational motion, essentially orthogonal to the first axis; a second axis (B-B) rotated around a first axis (a-a) for making a large number of angular positions; and controlling (117, 547) performs a translational motion for going into installation position (115, 545), when the installation position is the angular position of coincidence with ControlNet.

10. The cooking unit according to claim 1 or 2, characterized in that the installation place (115) contains the first contact element (A)interacting with the first fixed Cam profile (123) and the first rotary Cam profile (135), the piston (113) contains the second contact element (V), interacting with the second fixed Cam profile (121) and the second rotary Cam profile (133), and controlling (117) includes a third contact element (117A), interacting with the third stationary Cam profile (125) and the third rotary Cam profile (137), while moving the rotary Cam profile relative to the fixed Cam profile provides control of the rotational and translational movements of the piston, the installation space and controlsa.

11. The cooking unit of claim 10, the tives such as those that fixed Cam profiles(121, 123, 125, 501, 503, 505) and rotary Cam profiles(133, 135, 137, 533, 535, 537) designed to control the initial movement of rotation of the installation space (115, 545) and piston (113, 543) of provisions for download of the product for the preparation of a beverage in a position of coincidence with ControlNet (117, 547),
the second movement is reciprocal translational movement of the piston (113), the installation space (115) and controlsa (117, 547) along the common axis (In-In) translational movement, while the second movement causes the piston (113, 543), the installation place (115, 545) and controlling (117, 547) in different positions relative to each other, which correspond to different volumes of the cooking chamber bounded by the piston, ControlNet and the installation place,
the third movement of rotation in the direction opposite to the first movement of rotation and reciprocal translational movement of the installation space (115, 545) and piston (113, 543) to bring the installation space and the piston in position for discharging the used product.

12. The cooking unit according to claim 1 or 2, characterized in that the piston (113) has an elastically loaded cover (201), which exert pressure through the elastic element (202) to move away from the body of the piston (113), and in the presence of the product for coffee in the cooking chamber on the cover of the jam to the Corinthians is USU piston.

13. The cooking unit 12, characterized in that the cover is fixed relative to the shaft (203), which, moving with the cover (201) as a single item, provides the opening for flow of hot water by alternating the connection of the cooking chamber and at least one hole (V) for communication with the outer part.

14. The cooking unit according to item 13, characterized in that it contains floaters (213), which close the connection between the inlet hot water and at least one aperture (W) for communication with the outer part when the cooking chamber is at least in one position for cooking.

15. The cooking unit according to claim 1 or 2, characterized in that the tube (317) for the production of the beverage from the cooking chamber is a valve (319) pressure regulation.

16. The cooking unit according to claim 1 or 2, characterized in that it has a position of pre-heating the cooking chamber, in which controlling (117) closes the installation place (115) on one end, and a piston (113) closes the opposite end of the installation space, leaving the bottom discharge outlet from which the heating fluid circulating in the piston (113)can flow without entering the cooking chamber.

17. The cooking unit according to claim 1 or 2, characterized in that it includes a first hole (301) for filing drink, and the second from Erste (315) for filing drink, moreover, these holes are communicated in fluid with the cooking chamber when the cooking unit is in position for cooking, with the first hole (301) for filing drink combined with a sealing device (305, 307), and the second hole (315) for filing drink combined with valve (319) back pressure, whereby in the first position for cooking sealing device is opened to supply the beverage through the first feed opening (301), and in the second position for cooking sealing device (305, 307) is closed to prevent flow of the beverage through the first hole (301 for feeding the beverage, thereby forcing the beverage to flow through the second feed opening (315) and the valve (319) back pressure.

18. The cooking unit according to claim 1 or 2, characterized in that it includes an adjustable valve (400) back pressure which is connected in fluid with the interior of the cooking chamber and including a slider (405), with the possibility of sliding, located in the housing (403), the housing includes inlet and outlet holes (401, 409) and the hole (411) for pressure relief, and a slider (405) moves in one of a variety of provisions for the supply of drink, each of which corresponds to a different pressure in the cooking chamber.

19. The cooking unit according to claim 1 or 2, characterized in that the fixed Cam profiles (501, 5503, 505) VK is ucaut a first Cam profile (501) to control the movement of the piston (113) and the second Cam profile (503) to control the movement of the installation space (115), moreover, the first and second Cam profiles include channels in the form of closed curves, and the elements (501C, S) prevent movement, preventing the movement of the respective contact elements (V, V), in tandem with the piston (543) and the installation location (545), in a given position along the first and second Cam profile.

20. Automatic machine for the preparation of drinks, characterized in that it contains the cooking unit according to any one of the preceding paragraphs.



 

Same patents:

FIELD: personal use articles.

SUBSTANCE: invention relates to the system 10, and also to the method of making beverages with an infusion method of the product contained in the package 1, and can be used in coffee machines of the ESPRESSO type. The system 10 comprises an infusion chamber 7, a locking device 60 including upper locking means 61 which are designed for selective prevention or providing access to the chamber 7 in its upper part, and the lower locking means 62 which are designed for selective receiving by the chamber 7 of the package 1 or providing the package 1 outlet from the chamber 7 under the action of gravity force. The position of the upper locking means 61 determines the position of the lower locking means 62 and vice versa.

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17 cl, 14 dwg

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FIELD: personal use articles.

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44 cl, 19 dwg

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FIELD: personal use articles.

SUBSTANCE: invention relates to a brewing device to prepare beverages or other food products from capsules, in particular, from disposable capsules. The brewing device comprises a brewing chamber with the first part and the second part capable of displacement relative to each other, besides, there is a seat for capsules in one of the parts. In this seat there is at least one perforator for capsule perforation. The first channel supplies a brewing fluid medium into the chamber, and the second channel provides for food product release from the brewing chamber. In the seat there is an alignment element for capsules, which may elastically move in axial direction and is equipped with a guiding and aligning surface for capsules facing the second of the brewing chamber parts. Besides, the aligning element is elastically loaded so that it partially protrudes from the seat while the brewing chamber is open, and may move inside the seat as the brewing chamber closes, besides, when the brewing chamber is closed with a capsule arranged inside, the aligning element is fully inserted inside the seat.

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47 cl, 9 dwg

FIELD: personal use articles.

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EFFECT: invention enables to simplify the device design concept and make it more compact and reliable.

15 cl, 8 dwg

FIELD: personal use articles.

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22 cl, 9 dwg

FIELD: personal use articles.

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17 cl, 14 dwg

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SUBSTANCE: invention relates to improvements of brewing units for making beverages which use capsules, boxes, or other pre-packaged single portion packages, in particular for making coffee. The brewing unit comprises in combination: a support, a drawer which is, at least, a slot for single portion package, sliding relative to the said support and movable between the position of loading of the single portion package and the brewing position and the outputted element to supply water under pressure to the said single portion package. The brewing unit also comprises a lever to control the movement of the said drawer and mechanical connection between the said lever and the said outputted element. The lever action causes movement of the drawer from the loading position to the brewing position and presses the outputted element to the single portion package. The brewing unit is provided with a locking member blocking the single portion package in the brewing position, preventing it from movement in the direction of loading position when the said drawer is moved from the brewing position in the loading position. The said slot is partially restricted with a pair of swinging arms that move relative to the said drawer to enable disposal of the used single portion package from the said slot during movement of the drawer from the brewing position to the loading position.

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28 cl, 21 dwg

FIELD: personal use articles.

SUBSTANCE: invention relates to the field of preparation of beverages. The machine for preparing beverages with a brewing unit for preparing beverages for accommodation of the disposable capsule comprises a node of the capsule retention, designed for retention the capsule in the given position during insertion of the capsule under gravity in the brewing unit, and a water injection node for at least a partial closing the capsule and the water supply to the capsule. The part retaining the capsule forms the front part of the unit and is attached to the node of liquid injection with the ability to move along essentially a horizontal trajectory, while the water injection node is a rear fixed part of the unit. The machine for preparing beverage comprises a housing. One of these nodes of the brewing unit can be movable or slide telescopically out of this housing for insertion/removal of the capsule with the ingredient and to be placed in the housing to bring the brewing node in the position of the capsule extraction.

EFFECT: group of inventions enables to provide a proper seal to create the necessary conditions for extraction.

15 cl, 13 dwg

FIELD: personal use articles.

SUBSTANCE: invention relates to the field of preparation of beverages. The plant for preparation of beverages implementing the claimed method is designed to complete the process of preparation of beverage by passing the flowing medium through at least one element comprising at least one ingredient of the beverage. And at least one element is designed for entering it and processing of different types of elements comprising the beverage ingredient, such as a pad, a cup, a capsule and a cartridge. The device additionally comprises a control means, a detection means for measuring at least one characteristic of the flow when the flowing medium flow is created, the memory tool for storing the group of the predetermined flow characteristics connected to different types of elements that contain a flow ingredient, and an injection device for injecting fluid. And the predetermined flow characteristics which are stored in the memory tool are characteristics of the operating point.

EFFECT: group of inventions enables to detect automatically an element comprising the beverage ingredient by creating the flowing medium flow through the element.

3 cl

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