Fan

FIELD: ventilation.

SUBSTANCE: vaneless fan 100 for creation of the air flow includes nozzle 1 installed on the housing of base 16 for creation of the air flow passing through it. Nozzle 1 has internal channel 10 for receiving the air from base 16 and outlet hole 12 through which the air flow is discharged. Nozzle 1 is essentially located orthogonally to the axis and forms hole 2 through which the air is injected from outer side of fan 100 due to the air flow leaving the outlet hole 12. Both nozzle 1 and base 16 have the depth in the direction of axis; at that, depth of base 16 does not exceed double depth of nozzle 1. As an alternative, fan 100 has the height measured from the end of base 16, which is the most distant from nozzle 1, to the end of nozzle 1, which is the most distant from base 16, and width which is perpendicular to the height. At that, both the height and the width are perpendicular to the axis, and width of base 16 does not exceed 75% of nozzle 1 width.

EFFECT: fan has compact design.

25 cl, 5 dwg

 

The invention relates to a fan, in particular to the household, such as desktop, to create air circulation and air flow in a room, office or other consumer environment.

There are various household fans, usually having a separate group of vanes or blades mounted for rotation about an axis, and the actuator mounted near the axis of rotation of the group of blades. Household fans come in various sizes and diameters, for example a ceiling fan may have a diameter of more than 1 m and usually is suspended under the ceiling to create a flow of air downwards, providing cooling the entire room.

On the other hand, table fans often have a diameter of approximately 30 cm and are usually installed without fasteners being portable. In the standard table fans a separate group of blades is located close to the user, and the rotation of the fan blades provides in a room or part of the air flow forward toward the user. Fans of other types can be attached to the floor or mounted on wall. Movement and air circulation creates the so-called "cooling wind or light breeze and as a result, the user feels a cooling effect when the heat is dissipated by convection and evaporation. Fans described, n is the sample, in documents USD 103476 and US 1767060, can be installed on the desktop or an ordinary table. In the document US 1767060 described table fan oscillating function, which helps to ensure air circulation, equivalent to two or more well-known fans.

The disadvantage of such designs is that the user does not feel a uniform flow of air created by a fan, driven by changes in the transverse direction of the blades or facing the outside surface of the fan. Irregular or intermittent air flow can be felt as a series of pulses or impulses of the air. Another disadvantage is that created by the fan cooling effect decreases with distance from the user. This means that the fan must be placed in close proximity to the user, so that he could benefit from the action of the fan.

In everyday life it is desirable that the appliances were possible, small and compact, due to the limited space. You do not want from the household appliance played any part, or to enable the user to touch the moving parts of the fan, such as blades. Some designs have a safety device, such as a lattice or a protective shield around the blade to protect the user the user from injury from contact with moving parts of the fan. In the document USD 103476 described grid around the blade, however, part of the blades, closed with a grating, it is difficult to clean.

Other types of fans described in the documents US 2488467, US 2433795 and JP 56-167897. The fan on patent US 2433795 has instead of the blades of the spiral grooves in the rotating casing. The fan described in the document US 2488467, produces an air flow from a number of nozzles and has a large base that contains the motor and the blower or fan to create air flow.

The location of the fans, such as described above, next to the user is not always possible, because the bulky shape and design mean that the fan occupies a significant area in the workspace of the user. In particular, the housing or the fan base that is installed on your desktop or next to it, reduces the area available for the placement of documents, computer or other office equipment. Often numerous devices must be located in the same area near where the power supply and in close proximity to other electrical appliances for ease of connection and reduce operating costs.

The shape and design of the fan placed on the desktop, not only reduces available to the user working area, but can also close the lighting (natural iliakassavine), leaning on the table. For hard work and to read the necessary well-lit work Desk. In addition, good lighting reduces eye strain and reduces the corresponding health problems that can result from extended periods of work in low light conditions.

The invention is directed to the creation of an improved fan that does not have the disadvantages of known devices.

The task of the invention is to provide a compact fan, which during operation generates air flow with uniform velocity over the entire working surface of the fan.

The first object of the invention is safe fan for creating a flow of air containing a nozzle mounted on the housing for creating emerging from the nozzle air flow. The nozzle has an internal channel for receiving air from the base and an exhaust hole through which extends the air flow. The nozzle is essentially orthogonal to the axis and forms an opening through which air from outside the fan sucked air flow emerging from the outlet openings. As the nozzle and the substrate has a depth in the direction of the axis, with the base depth does not exceed double the depth of the nozzle.

Preferably the depth is based what I have is 100-200 mm, more preferably about 150 mm, Preferably the height of the fan, measured from the end of the most remote from the nozzle to the end of the nozzle, the most remote from the substrate, does not exceed 75% of the width of the nozzle. When this direction as the height and the width perpendicular to the axis.

The second object of the invention is also safe fan for creating an air flow, comprising a nozzle mounted on the housing to create an air flow and having an internal channel for receiving air flow from the base and an exhaust hole through which extends the air flow. The nozzle is essentially orthogonal to the axis and forms an opening through which air from outside the fan sucked air flow emerging from the outlet openings. The height of the fan, measured from the end of the most remote from the nozzle to the end of the nozzle, the most remote from the substrate, and the width perpendicular to the height orthogonal to the axis, and the base width does not exceed 75% of the width of the nozzle.

In the construction of both objects of the invention to create an air flow and cooling effect is not required blade fan. Safe design allows to reduce the noise impact due to the absence of sound from the fan blades moving through the air flow, and also due to fewer moving parts and simplification of the structure. Base dimensions are small compared to the size of the nozzle and compared with the size of the whole structure of the fan. The depth of the base of the fan such that the fan is a narrow product that occupies a small area of the workspace of the user. The fan according to the invention compared with the known fan provides the corresponding cooling effect with a smaller footprint and has fewer parts. This reduces manufacturing costs and complexity of manufacture.

Hereinafter in the description, the term "safe" is used to describe devices in which the air flow is produced in the front from the fan direction without the use of blades. On this basis, we can assume that safe fan has an output region or area of release without vanes or blades, from which the air flow goes in the direction that is acceptable to the user. Safe fan can be supplied with air by using a source of primary air from a variety of sources or generating means, such as pumps, generators, motors or other devices for supplying a fluid medium, which includes a rotating device, such as a rotor e is tradigital and fan to create air flow. The flow generated by the motor of the air forces the air to pass from the space or environment surrounding the fan, the inner channel to the nozzle and then out through the outlet.

The fan itself does not provide a detailed description of the power supply, motors and components required, for example, to run the fan secondary functions. Secondary functions of the fan can be, for example, lighting, control and oscillation fan.

Preferably the width of the base of the fan is 65-55% of the width of the nozzle, more preferably about 50% of the width of the nozzle. In a preferred embodiment of the invention the height of the fan is 300-400 mm, more preferably about 350 mm. Preferred design features and dimensions of the fan allows to obtain a compact design, at the same time creating appropriate for cooling a user's air flow.

Preferably the base is made essentially cylindrical. This form allows you to get a fan with a compact base, which has an attractive appearance. Design without unnecessary details is appropriate and it is often of interest to the user or customer. In addition, under the slave is than the table size, occupied by the fan base will be smaller than the space occupied by other well-known fans. The nozzle occupies the space above the surface of the desktop, proceeding from the substrate, without cluttering the surface of your Desk or obstruction of the user's access to the surface of the desktop.

Preferably the base has at least one inlet for air, which is located essentially at a right angle to the axis. Preferably the base has a side wall with at least one inlet for air. The location of the input air holes around the base provides the design flexibility of the base and the nozzle, and also allows air to enter the base from a variety of points, thereby providing more air to the fan as a whole. More preferably, at least one inlet was formed a number of holes arranged around the second axis essentially perpendicular to the first axis. In this case, preferably, the fan air to flow from each inlet to the inlet of the means for creating air flow through the nozzle, and the entrance to the means for creating the air flow is essentially at a right angle to a particular or each input hole. P and such implementation is provided by the trajectory of the incoming air, which minimizes the noise and friction losses in the system.

In either of the two above-mentioned variants of the invention, the nozzle includes a Coanda surface adjacent to the outlet, and the outlet is located so as to direct the flow of air on the surface. The Coanda surface is a known type of surface, providing the effect of the Coanda effect on the flow emerging from the outlet openings near the surface. The environment tends to occur close to the surface, almost "sticking" or "strongly pressed to the surface. The Coanda effect is already tested and convincingly confirmed by way of suction, where the primary air flow is directed over the Coanda surface. Description of surface features Coanda effect flow environment on such a surface can be found in articles, for example, Reba, Scientific American, vol 214, June 1963, p.84-92. Through the use of the Coanda surface, the outside air fan is drawn through the opening by the air flow over the Coanda surface.

According to the invention, the air flow created by fan nozzle. In the further description of this flow of air will be referred to as primary. The primary stream of air emerges from the nozzle through the outlet and preferably is robotic on the Coanda surface. The primary flow of air sucked in the air around the discharge outlet of the nozzle, which acts as an amplifier of the flow of both primary and trapped air. Entrapped air in the future will be called the secondary air flow. The secondary air flow is drawn from the premises, site or external environment surrounding the outlet nozzle near the fan. The primary air flow is directed over the Coanda surface and combined with the secondary air flow captured by the amplifier of air, gives the total air flow produced or carried in the direction of the user from the hole formed by the nozzle. The total air flow is sufficient to create cooling.

Air flow, portable this fan to the user, has the advantage that it has low turbulence and a more linear flow profile than the profile created by other known devices. Linear air flow with low turbulence effectively moved from the release point, and loses less energy and has less speed loss on turbulence than the air flow created by famous fans. The advantage for the user is that the cooling effect can be felt even at a distance, this increases the total is I the efficiency of the fan. This means that the user can choose the location for the fan at some distance from the working area to feel the cooling effects of the fan.

Mostly fan provides the suction of the air surrounding the outlet nozzle, so that the primary air flow was increased at least 15%, at the same time, maintaining a smooth General release. Suction performance and enhance the fan allow you to get a fan with a higher efficiency as compared to known devices. The air flow discharged from the formed nozzle hole has an approximately rectangular plot of velocity with respect to the diameter of the nozzle. In General, the speed and the flow profile can be described as for plug flow conditions, with some areas having laminar or partially laminar flow.

Preferably the nozzle contains a loop. The shape of the nozzle is not limited to the requirement to include space for blade fan. In a preferred embodiment of the invention the nozzle is annular. With the aid of a ring nozzle fan has the potential to serve a wide area. In another preferred embodiment of the invention the nozzle is at least partially circular. This configuration can provide a lot o what about the designs of the fan, increasing the choice available to the user or customer.

Preferably the inner channel is continuous. This provides a smooth free flow of air in the nozzle, reduces friction losses and reduces noise. In this configuration, the nozzle may be manufactured as a single part, which reduces the design complexity and thus reduces production costs.

Preferably the means for creating air flow through the nozzle is designed to create an air flow through the nozzle under pressure of at least 400 kPa. Such pressure is sufficient to overcome the resistance of the outlet nozzle and provides output pressure of the air flow, suitable for cooling the user. Preferably, during operation of the fan air mass flow was at least 450 l/s, more preferably 600-700 l/C. Mostly with the same mass flow of air moves in the front direction from the hole and the area surrounding the outlet nozzle, laminar flow, and can be felt by the user as a cooling effect greater than the cooling effect of centrifugal fan.

In a preferred embodiment, the fan means for creating air flow through the nozzle contains an impeller driven by what lektrodvigatelem. In this run the fan effectively creates air flow. More preferably the means for creating air flow contains a brushless direct current motor and a diagonal impeller. This design reduces friction losses from the brushes of the motor, and reduces the amount of the graphite particles from the brushes in the traditional motors. Reducing the number of particles of graphite and carbon emissions is an advantage in terms of purity or contamination sensitive environments such as hospitals or places where people are suffering from allergies.

The nozzle can rotate or be rotated relative to the base or other part of the fan. This allows you to direct the nozzle as needed to the user or from him. The fan may be a desktop, floor or be attached to the wall or ceiling. This can increase the area of the premises in which the user feels cooling.

The outlet may be essentially circular. By essentially annular outlet total air flow may be produced in the direction of the user in a wide area. Mainly the light source in the room or in the setup table fan or natural light can reach the user through the Central hole. The advantages of the military discharge opening concentric inner channel. This configuration will have an attractive appearance, and is concentric with the channel location of the outlet openings facilitates the manufacture.

Option of carrying out the invention is described hereinafter with reference to the drawings.

Fig 1 shows a fan, front view;

figure 2 - part of the fan shown in figure 1, a perspective view;

figure 3 is a section along a-a in figure 1;

figure 4 is a fragment of the fan shown in figure 1, on an enlarged scale, a side view in section;

figure 5 is a section along b-b In figure 3, shown in the direction of the arrow F.

Figure 1 shows an example run of the fan 100, front view. The fan 100 includes an annular nozzle 1 forming the Central hole 2. As shown in figure 2 and 3, the nozzle 1 has an internal channel 10, the discharge opening 12 and the surface 14 Coanda adjacent to the outlet 12. The surface 14 Coanda located such that the flow of primary air emerging from the outlet openings 12 and directed to the surface 14 Coanda, increases due to the Coanda effect. The nozzle 1 is mounted on a base 16, containing the outer body 18. The base 16 has several located on the outer housing 18 of the buttons 20 to control the fan 100.

The fan has a height H, width W and depth D, as shown in figures 1 and 3. The nozzle 1 is located around the X-axis of sushestvuet right angle. The height H of the fan is measured in the direction perpendicular to the axis X, from the end of the base 16, the most remote from the nozzle 1 to the end of the nozzle 1, the most remote from the base 16. In this embodiment of the invention, the fan 100 has a height H of about 530 mm, However, the fan 100 may be of any desired height, for example about 475 mm Base 16 and the nozzle 1 has a width W, measured perpendicular to the height H and perpendicular to the axis X. In figure 1, the width of the base 16 is designated as W1, a width of the nozzle 1 is designated as W2. The base 16 and the nozzle 1 have a depth in the direction of the axis X. figure 3 the depth of the base 16 is designated as D1, and the depth of the nozzle 1 is designated as D2.

As shown in figure 3 and 5, the base 16 is an electric motor 22 to create an air flow through the nozzle 1. The base 16 is substantially cylindrical in this embodiment of the invention has a diameter (i.e. the width W1 and depth D1) of about 145 mm, Base 16 has inlet openings 24a and 24b for air formed in the outer casing 18. In base 16 is a casing 26 of the electric motor, which is based on a motor 22 and is held in fixed position by means of the rubber bearing or sealing element 28.

In the shown embodiment of the invention, the motor 22 is a brushless electric is a DC motor, with the shaft connected to the impeller 30. After the impeller 30 is the diffuser 32. The diffuser 32 has secured a stationary disk having spiral blades.

The entrance 34 to the impeller 30 is connected with the inlet holes 24A and 24b for air formed in the outer casing 18 of the base. Outlet of the impeller 30 and the output 36 of the diffuser 32 is connected with the hollow sections of the channels or passages located in the base 16 to provide passage of air from the impeller 30 to the inner channel 10 of the nozzle 1. The motor 22 is connected to an electric connector and a power source and controlled by a control unit (not shown). The connection between the control unit and several buttons 20 allows the user to control the fan 100.

Next, with reference to figure 3 and 4 will be described structural features of the nozzle 1. The nozzle 1 has a ring shape, and in this embodiment of the invention, its diameter is about 350 mm, However, the nozzle may have any desired diameter, such as about 300 mm, an Inner channel 10 is annular and is made in the form of a continuous loop or passage in the nozzle 1. The nozzle 1 is formed by at least one wall bounding the inner channel 10 and the outlet 12. The nozzle 1 includes an inner wall 38 and outer wall 40. In the shown embodiment, the invention stink is 38 and 40 form a loop or bend, so that the inner wall 38 and outer wall 40 are approaching each other. Inner wall 38 and outer wall 40 together form the exhaust hole 12 passing around the axis X. the Outlet 12 has a plot 42, tapering towards the outlet 44. The output 44 is a gap or distance between the inner and outer walls 38 and 40 of the nozzle 1. The distance between the opposite surfaces of the walls 38 and 40 at exit 44 of the outlet 12 is selected in the range of 1-5 mm, the Choice of this distance depends on the required performance characteristics of the fan. In this embodiment of the invention, the output 44 has a width of about 1.3 mm, while the exhaust port 12 and the outlet 44 concentric inner channel 10.

The outlet opening 12 adjacent to the surface 14 Coanda, which is the diffuser section of the nozzle 1. Diffuser section includes surface 46 to facilitate the flow of the air flow generated by the fan 100. In the example shown in figure 3, the discharge opening 12 and General configuration of the nozzle 1 is made so that the angle between the surface 14 Coanda and the X-axis is approximately 15. The angle is selected to provide sufficient air flow across the surface 14 Coanda. The base 16 and the nozzle 1 have a depth in the direction of the axis X about 5 cm Surface 46 of the diffuser and the overall profile is paid 1 based on the shape of the airfoil, in the shown example, the diffuser section continues for a distance equal to approximately two thirds of the total depth of the nozzle 1.

The fan 100 is as follows.

After the user makes the appropriate selection and press the selected button 20 for control or actuation of the fan 100, sends a signal to the actuation of the motor 22. The motor 22 is activated and air is sucked into the fan 100 through the inlet 24. In a preferred embodiment of the invention, the air intake is a performance about 20-30 l/s, preferably about 27 l/C. the Air flows through the outer body 18 and the trajectory of the arrow F in figure 3, is fed to the input 34 of the impeller 30. Air discharged from the outlet 36 of the diffuser 32 and the outlet of the impeller 30, is divided into two streams moving in opposite directions along the inner channel 10. The air flow in the narrows at the entrance to the outlet 12 and additionally narrows at the output 44. This constriction creates in the system pressure. The motor 22 generates a flow of air through the base 16 with a pressure of at least 400 kPa. Created the air flow overcomes the resistance by narrowing and exits through the outlet 44 as the primary air flow.

The release of the primary stream is zdwhu creates a zone of reduced pressure at the inlet ports 24A and 24b, ensuring the absorption of additional air into the fan 100. The action of the fan 100 creates a lot of air flow through the nozzle 1 and provides its output through port 2. A primary stream of air is directed over the surface 14 Coanda and the surface 46 of the diffuser, amplified due to the Coanda effect. Secondary air flow created by the suction of air from the external environment, in particular from the area around the outlet 44 and around the outer edge of the nozzle 1. Part of the secondary flow of intake air primary air flow can be directed over the surface 46 of the diffuser. This secondary air flow passes through the hole 2, where it is combined with the primary air flow for the education of the total flow which is directed forward from the nozzle 1.

The combination of suction with increased flow results in the total flow of air from the holes 2 of the fan 100, which exceeds the flow of air from the fan without the Coanda surface adjacent to the area of release.

Increasing the flow and laminar flow result in a steady flow of air sent to the user from the nozzle 1. In a preferred embodiment of the invention the mass flow rate of air supplied from the fan 100 is at least 450 l/s, preferably from 600 to 700 l/s Performance on the distance the AI from the user up to 3 diameters of the nozzle (i.e. approximately 1000-1200 mm) is approximately 400-500 l/s Total air flow has a speed of approximately 3-4 m/s High speed is achieved by reducing the angle between the surface 14 Coanda and the axis X. a Small angle results in a more focused overall air flow. This air flow usually has a high speed, but reduced mass flow. On the contrary, a large mass flow rate can be achieved by increasing the angle between the Coanda surface and the axis. In this case, the speed of the generated air flow is reduced, but consumption increases. Thus, the operating characteristics of the fan can be changed by changing the angle between the Coanda surface and the x axis.

The invention is not limited to the above description. The specialist in this field of technology understandable embodiments of the invention. For example, the fan may have a different height or diameter. The base and the nozzle of the fan can be of different depth, width and height. The fan can be installed on the table, he can stand without mounting or can be mounted on wall or ceiling. The shape of the fan can be adapted to any situation or place, where the required cooling air flow. Portable fan can have a small nozzle, for example with a diameter of 5 cm by Means DL is creating air flow through the nozzle may be an electric motor or other device, creating a flow of air, such as compressor or vacuum unit that can be used to create the fan air flow in the room. The motor may be, for example, asynchronous AC motor or brushless DC motor, however, can be any suitable device moving or transportation of air, for example a pump or other means of creating a straight air flow. After the motor can be located diffuser or secondary diffuser to recover some portion of the static pressure loss in the casing of the electric motor and the electric motor.

The output from the exhaust hole may be modified. The output from the exhaust hole can be widened or narrowed to different sizes to maximize air flow. The air flow generated through the outlet holes can pass through the surface, for example on the surface of the Coanda. Alternatively, the air flow can pass through the outlet and fed in the direction of the fan without traversing the adjacent surface. The Coanda effect can be obtained in a number of different surfaces, or the number of internal or external structures can be used together with the purpose of obtaining demand is th flow and suction.

In addition, the nozzle can have other forms. For example, can be used nozzle oval shape or form "treadmill", single strip, line, or block. Since you have access to the Central part of the fan due to the lack of blades in the aperture formed by the nozzle can be located, additional structural elements, such as lights, clocks or LCD display.

In addition, the base may be rotary or tilting, so it's easy to move and adjust the position of the nozzle.

1. Safe fan for creating a flow of air containing a nozzle mounted on the housing to create a pass-through air flow and having an internal channel for receiving air flow from the base, and an exhaust hole through which the produced air flow, and the nozzle is essentially orthogonal to the axis and forms an opening through which air from outside the fan sucked air flow emerging from the outlet, at the same time as the nozzle and the base has a depth in the direction of the axis, and the base depth does not exceed double the depth of the nozzle.

2. The fan according to claim 1, in which the base depth is 100 to 200 mm, preferably about 150 mm

3. The fan according to claim 1, in which the fan and heat height, measured from the end of the most remote from the nozzle to the end of the nozzle, the most remote from the substrate, and the width perpendicular to the height, as the height and width perpendicular to the axis, and the base width does not exceed 75% of the width of the nozzle.

4. The fan according to claim 3, in which the base width is 65-55% of the width of the nozzle, and more preferably about 50% of the width of the nozzle.

5. The fan according to claim 3, in which the height of the fan is 300-400 mm

6. The fan according to any one of claims 1 to 5, in which the base is essentially cylindrical.

7. The fan according to any one of claims 1 to 5, in which the base has at least one inlet for air, which is located essentially at a right angle to the axis.

8. The fan according to claim 7, in which the base includes a side wall having at least one inlet for air.

9. The fan of claim 8, in which at least one inlet opening is a multiple input air holes arranged around the second axis essentially perpendicular to the first axis.

10. The fan according to claim 9, in which the entrance to the means for creating air flow through the nozzle is essentially perpendicular to a particular or each of the inlet air so that the trajectory of the flow of air passes from each musclegallery to the entrance of the tool.

11. The fan according to any one of claims 1 to 5, in which the nozzle contains a loop.

12. The fan according to any one of claims 1 to 5, in which the nozzle is essentially circular.

13. The fan according to any one of claims 1 to 5, in which the inner channel is continuous.

14. The fan according to any one of claims 1 to 5, in which the inner channel is essentially circular.

15. Safe fan for creating a flow of air containing a nozzle mounted on the housing to create a pass-through air flow and having an internal channel for receiving air flow from the base, and an exhaust hole through which the produced air flow, and the nozzle is essentially orthogonal to the axis and forms an opening through which air from outside the fan sucked air flow emerging from the outlet, the fan has a height, measured from the end of the most remote from the nozzle to the end of the nozzle, the most remote from the substrate, and the width perpendicular height, with the height and width perpendicular to the axis, and the base width does not exceed 75% of the width of the nozzle.

16. The fan 15 in which the base width is 65-55% of the width of the nozzle, and more preferably about 50% of the width of the nozzle.

17. The fan 15, in which the height of the fan which is 300-400 mm, and preferably about 350 mm.

18. The fan on any of PP-17, in which the base is essentially cylindrical.

19. The fan on any of PP-17, in which the base has at least one inlet for air, which is located essentially at a right angle to the axis.

20. The fan according to claim 19, in which the base includes a side wall having at least one inlet for air.

21. The fan according to claim 20, in which at least one inlet opening is a multiple input air holes arranged around the second axis essentially perpendicular to the first axis.

22. The fan on item 21, in which the entrance to the means for creating air flow through the nozzle is essentially perpendicular to a particular or each of the inlet air so that the trajectory of the flow of air passes from each inlet to the entrance of the tool.

23. The fan on any of PP-17, in which the nozzle contains a loop.

24. The fan on any of PP-17, in which the nozzle is essentially circular.

25. The fan on any of PP-17, in which the inner channel is continuous.



 

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17 cl, 13 dwg

FIELD: natural gas transportation mains.

SUBSTANCE: invention relates to gas-transfer energy complexes used for increasing pressure of natural gas transported along gas mains. Novelty in proposed self-contained gas-transfer energy complex of gas mains including at least one compressor station with at least one centrifugal gas charger driven by electric motor is that proposed complex contains power plant consisting of at least power turbine unit including turbine and multiple turbogenerator (with two or more pairs of poles) with common shaftline installed on magnetic supports. Leads of turbogenerator stator winding are electrically connected directly with ins of electric motor stator winding, and electric motor with gas charger have common shaftline installed on magnetic supports. Rated speed of shaftline is set equal to rated speed of gas charger, and rated output voltage frequency of turbogenerator ftg is equal to nch · pm/60 where nch is speed of shaftline of electric motor and charger, pm is number of pairs of electric motor poles, and number of pairs of poles ptg of turbogenerator is 60, ftg/ntg where ntg is speed of shaftline of turbine and turbogenerator. Proposed invention provides self-contained operation of complex with remote control. Groups of turbine-generator and charger and drive are simplified in design, power loses for production and transmission of energy and electric drive are brought to minimum.

EFFECT: increased efficiency as compared with known systems.

7 cl

The fan // 2241860
The invention relates to ventilyatorostroeniya and can be used as part of systems management products aviation and rocketry

The fan // 2194883

The invention relates to ventilation systems cooling (CO) power plants with open air tract, a feature of which is the lack of conditions for the axisymmetric flow of air entering the impeller ventilation unit (WU) and sufficient power pack offices (MTO) to build a full-profile devices release air to the atmosphere

Axial fan // 2184274
The invention relates to electrical engineering and ventilyatorostroeniya, namely the production of axial fans and fan installations, in which the motor and the fan are combined in a single unit with the formation of the combined unit is called an electric fan

FIELD: natural gas transportation mains.

SUBSTANCE: invention relates to gas-transfer energy complexes used for increasing pressure of natural gas transported along gas mains. Novelty in proposed self-contained gas-transfer energy complex of gas mains including at least one compressor station with at least one centrifugal gas charger driven by electric motor is that proposed complex contains power plant consisting of at least power turbine unit including turbine and multiple turbogenerator (with two or more pairs of poles) with common shaftline installed on magnetic supports. Leads of turbogenerator stator winding are electrically connected directly with ins of electric motor stator winding, and electric motor with gas charger have common shaftline installed on magnetic supports. Rated speed of shaftline is set equal to rated speed of gas charger, and rated output voltage frequency of turbogenerator ftg is equal to nch · pm/60 where nch is speed of shaftline of electric motor and charger, pm is number of pairs of electric motor poles, and number of pairs of poles ptg of turbogenerator is 60, ftg/ntg where ntg is speed of shaftline of turbine and turbogenerator. Proposed invention provides self-contained operation of complex with remote control. Groups of turbine-generator and charger and drive are simplified in design, power loses for production and transmission of energy and electric drive are brought to minimum.

EFFECT: increased efficiency as compared with known systems.

7 cl

FIELD: in-flow ventilating systems.

SUBSTANCE: ventilating system includes ventilating unit 1, radiator unit 2, filtering unit 3 and distributing unit 4. Unit 1 includes main and reserve radial fans 6, 7 having inlet manifolds 8, impellers 9 with main and covering discs 11, 12, radial blades 10 and converging gap between manifold 8 and disc 12. Fans 6, 7 are separated by partition 17 in housing 16 for forming vortex cavities between manifold 8 and disc 12 and ducts 19. Vortex suppressing plates are mounted in said cavities. Surface area of cross sections of ducts 19. Surface area and diameter of impeller 9, distance between one wall 18 and blades 10 are mutually related by predetermined relations. When flow is directed to duct 19 of fans 6 or 7 by means of flaps 25 arranged in unit 4 or valves, it is possibly to perform maintenance of system without interrupting its operation.

EFFECT: reduced size, improved comfort of maintenance of system.

17 cl, 13 dwg

FIELD: non-positive-displacement pumps.

SUBSTANCE: centrifugal compressing device comprises engine (50) that set rotor (52) in rotation and at least one compressor that has housing of the stator and a set of wheels provided with blades (56) mounted on the driven shaft that is set in rotation inside the housing of the stator. The motor is mounted in pressure-tight crank case (86). The compressing device additionally has a set of active guiding axial and radial bearings (60), (62), (64), (66), and (67) of the rotor and driven shaft and means for cooling engine and guiding bearings by means of sucking gas supplied by the compressor at the outlet of the first compression stage. The cooling means have a set of inner pipelines (80-1), (80-2), (80-3), (80-4), (80-5) and (80-6) that supply cooling gas to the engine and bearings. The flow rate of the cooling gas supplied to the engine differs from that of the cooling gas supplied to the bearings and flow together upstream of the first compression stage .

EFFECT: enhanced reliability.

Fan unit // 2355916

FIELD: ventilation.

SUBSTANCE: invention relates to fan engineering and can be used as a component of space technology temperature control systems. The technical result is achieved by a fan unit comprising a casing including a cylindrical boring and two flanges with axial holes, two bushes are coaxial to the casing and connected to it by piers; an electric motor is set in each bush and its shaft is equipped by an impeller set inside the cylindrical boring. The casing consists of two parts; the first flange is fitted at the end face of the first casing part and the second one - of the second casing part. A bush with piers is placed in each casing part; the first flange is fitted with threaded holes; the flanges are contacting with each other and interconnected by screws screwed into the threaded holes and passing through the axial holes of the second flange with the screw heads being placed on the second flange side; the outer surface of the first casing part is cylindrical along the section from its free end face to the first flange and the first flange axial holes are projecting beyond the second flange outline.

EFFECT: ensuring repairability and increasing variety of the fan unit assembly patterns.

1 dwg

FIELD: electric engineering.

SUBSTANCE: invention relates to electric engineering, namely - to electric machines, and deals with the specific features of fixing elements design for electric motors, particularly, fan sets intended for heating, ventilation and/or air-conditioning plants. This invention proposes a device (40) for fixing electric motor (16) containing accommodating seat (41) for motor installation with a wall (42). According to the invention, the device (40) for fixing electric motor (16) implemented so that the first (18A) and second (18B) air pumping element can be rotated. The air pumping element includes accommodating seat (41) to install electric motor (16) and a wall (42). Besides, the obstructing elements (60, 62; 72, 74, 76; 80) are placed between the electric motor (16) and accommodating seat (41) wall (42). The obstructing elements are implemented so that they can obstruct air flowing between electric motor (16) and wall (42) of accommodating seat and air flow be redirected through electric motor (16).

EFFECT: improved cooling of electric motor and ensured control of different heating, ventilation and/or air conditioning equipment parameters.

21 cl, 9 dwg

Compression unit // 2455530

FIELD: machine building.

SUBSTANCE: compressor unit (1) comprises a compressor (5), a suction line (2) and a return line (3), a block (20) that controls the compressor (5). Moreover, in line (2) the suction is ensured by at least one device (21, 22) to detect amounts of non-gaseous fluid medium in the fluid to be compressed, on their way to the entrance to compressor (5), and detection device (21, 22) is connected to management block (20) ensuring signal transmission, and compressor unit (1) contains dissolution unit (30), which dissolves the amount of non-gas on its way to the entrance of compressor (5), while the dissolution is initiated when the amount of detected non-gaseous fluid exceeds a certain limit.

EFFECT: any damage caused by a number of non-gaseous fluid into the suction inlet to the compressor is excluded.

7 cl, 1 dwg

Fan // 2458254

FIELD: ventilation.

SUBSTANCE: vaneless fan 100 for creation of the air flow includes nozzle 1 installed on the housing of base 16 for creation of the air flow passing through it. Nozzle 1 has internal channel 10 for receiving the air from base 16 and outlet hole 12 through which the air flow is discharged. Nozzle 1 is essentially located orthogonally to the axis and forms hole 2 through which the air is injected from outer side of fan 100 due to the air flow leaving the outlet hole 12. Both nozzle 1 and base 16 have the depth in the direction of axis; at that, depth of base 16 does not exceed double depth of nozzle 1. As an alternative, fan 100 has the height measured from the end of base 16, which is the most distant from nozzle 1, to the end of nozzle 1, which is the most distant from base 16, and width which is perpendicular to the height. At that, both the height and the width are perpendicular to the axis, and width of base 16 does not exceed 75% of nozzle 1 width.

EFFECT: fan has compact design.

25 cl, 5 dwg

Fan // 2458255

FIELD: ventilation.

SUBSTANCE: vaneless fan includes nozzle 1 and device for creation of flow through it. Nozzle 1 has internal channel 10, outlet hole 12 for receiving the air flow from internal channel 10 and Koand surface 14 adjacent to outlet hole 12. The latter is located so that the air flow can be directed along that surface. Device for creation of the air flow through nozzle 1 is made in the form of impeller 30 brought into action with electric motor 22.

EFFECT: creation of more uniform air flow along the whole working surface of fan; more compact and safe design.

18 cl, 5 dwg

Blower assembly // 2460904

FIELD: engines and pumps.

SUBSTANCE: blower assembly 10 is designed to create air jet. Blower comprises outlet 14 arranged on bed. Said bed comprises outer housing 16 and case 64 of impeller 52 arranged in outer housing 16. Case 64 has air inlet 70 and air outlet and houses impeller 53 and its drive motor 56 to force airflow through case 64. Aforesaid outlet has inner chamber 86 to direct airflow from impeller case 64 and constricted section 26 for airflow to be forced out from blower 10. Flexible sealing element is arranged between outer housing 16 and case 64 of impeller 52.

EFFECT: reduced air loss and noise, increased airflow.

19 cl, 17 dwg

FIELD: machine building.

SUBSTANCE: proposed plant comprises housing accommodating motor stator with multiphase winding, compressor compression radial-flow stage flow section fixed elements, housing cover accommodating stator elements of plant rotor magnetic suspension system bearings, and plant rotor carrying rotor elements of bearings and compressor and motor rotary assemblies. Note here that motor stator magnetic core is made up of sections, their number complying with that of compression stages. Magnetically and electrically not conducting separation cylinders are arranged between said sections. Note here that stator winding is shared by all sections and laid in core section and separation cylinder grooves. Every integrated rotary assembly of compressor and motor comprises impeller. Said impeller inlet has guide channels to feed gas to impeller inlet while motor rotor section is located there outside. Note also that magnetic coupling between motor and rotor sections is ensured by fixed cylinders made from electrically nonconducting materials with built-in cores made up of thin stacks of radial plates of electric steel.

EFFECT: decreased overall dimensions.

2 cl, 2 dwg

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