Fan

FIELD: heating, ventilation.

SUBSTANCE: fan designed for creating the air flow and comprising a base with a hole for air inlet and a hole for air outlet, at that in the base there is an impeller and a motor for rotating the impeller to create an air flow from the hole for air inlet to the hole for air outlet. In addition, the fan comprises a vertical elongated annular nozzle comprising an inner channel having a hole for air inlet, designed for receiving air flow from the base, and an outlet part designed for outlet of the air flow, at that the nozzle defines the hole through which the air flow exiting from the outlet part, sucks the air outside the fan.

EFFECT: invention is aimed at creation of the fan with smaller radial size, without loss of capacity.

32 cl, 14 dwg

 

The invention relates to a fan. Preferably the invention relates to a household fan, such as fan tower type, which is designed to create an air stream, for example, in the bathroom, office or other premises.

Ordinary household fan, as a rule, contains a set of vanes or blades mounted for rotation about an axis, and a driving device for rotating set of blades and, thus, create an air flow. Movement and air circulation produces the cooling wind or light breeze, causing the user to feel the cooling effect, as the heat is dissipated through convection and evaporation.

The size and shape of such fans may be different. For example, the diameter of the ceiling fan may be at least 1 m, and they can be hung to the ceiling to create a downward air flow, cooling the room. On the other hand, the diameter of desktop fans can often be about 30 cm, and typically, these fans are made in the form of freestanding and portable devices. Located on floor fans typically include an elongated vertical housing, the height of which is approximately 1 m, and which contains one or several what about the sets of rotating blades, designed to create an air flow, the flow of which is usually from 300 to 500 l/s For the rotation of the outlet of the fan tower type can be used oscillatory mechanism, so that the air flow was directed in a wide area of the room.

The lack of fans of this type is that the air flow created by the rotating fan blades, is usually not uniform. This is due to changes along the surface of the blades or along the outer surface of the fan. The degree of change may vary from one type of fan to another and even from one fan to another. These changes lead to the creation of an uneven or "intermittent" air flow that can be felt as a series of pulsations of the air, and they can be very uncomfortable for the user.

In a domestic environment due to possible limitations of space it is desirable that the appliances were so small and compact as possible. You do not want part of the appliance acted out or to enable the user to touch any moving parts such as blades. Many fans have security features, such as the frame or casing around the blades, so as to prevent damage from moving parts of the vent is the system, however, there may be difficulties with cleaning parts such shrouds.

The task of the invention is to provide an improved fan, which eliminated the disadvantages of the known devices.

The first object of the invention is the fan that is designed to create an air stream containing a base with an opening for air intake and hole for air release, and at the base is the impeller and the motor is designed to rotate the impeller to create an air flow from the vents for air intake to the outlet of air; and a vertical elongated annular nozzle that includes an internal channel, used for receiving the air flow from the base, and an exhaust section that is designed to release the air flow, the nozzle defines an opening through which the air stream coming out of the exhaust section, sucks air from the outside fan.

With this fan can be generated air flow and cooling effect obtained without the use of a blade fan. The advantage of the air flow created by the fan according to the invention, consists in that the air flow is small turbulence and a more linear profile of the air flow compared to the air flow created by Zvezdnyi devices. This can improve comfort for the user, which blows the air flow.

Hereinafter in the description, the term "safe" is used to describe a fan, from which the air flow exits or is pushed forward without the use of moving blades. According to this definition safe fan is considered as the fan containing the output area or zone of the issue which has no moving blades, from which airflow is directed to the user or in the bathroom. In the output area safe fan can enter the primary air flow, created by one of many different sources, such as pumps, generators, motors or other devices for the transmission fluid, which may be designed to create an air flow rotating device such as a rotor of the motor and/or impeller. The primary air flow can pass from the space of the room or other environment outside of the fan, through the internal channel in the nozzle and then move back into the space of the room through the exhaust area of the nozzle.

Therefore, it is not intended that the description of the fan as safe fan contains a description of the source of energy and elements, such as motors, which are necessary for the implementation of the population of the secondary functions of the fan. Examples of the secondary functions of the fan can be run, adjustment and oscillation fan.

Preferably, the direction in which the air exits from the vent area was essentially perpendicular to the direction in which the air passes at least through a portion of the inner channel. In a preferred embodiment of the invention the air flow passes at least through a portion of the inner channel essentially in the vertical direction, and the air coming from the vent area, is directed essentially horizontally. Preferably, the inner channel was located in front of the nozzle, while it is preferable that the final site was located at the rear of the nozzle and was made with the possibility of directing air to the front of the nozzle and through the hole. Therefore, in a preferred embodiment of the invention the shape of the outlet section essentially provides a change of direction of flow of each part of the air flow on the opposite during the passage of the air flow of the internal channel to the outlet of the exhaust section. Preferably, the cross-sectional shape of the exhaust area was essentially U-shaped and preferably, the outlet area converged to their final hole.

p> The nozzle should not provide space for the location of the centrifugal fan. Preferably, the inner channel surrounded the hole. For example, the inner channel can be carried around the hole at a distance of 50 to 250 see In a preferred embodiment of the invention the nozzle is elongated annular nozzle, the height of which is preferably from 500 to 1000 mm, and a width from 100 to 300 mm, it is Preferable that the shape of the nozzle were provided the opportunity to make the air flow at one end and dividing the air flow into two air flow, while it is preferable that each air stream flowing along the respective elongated sides of the hole.

Preferably, the nozzle is contained annular inner part of the housing and the annular outer portion of the housing that define the inner channel, the outlet section and the hole. Each part of the body can contain multiple elements, but in the preferred embodiment of the invention, each of the parts is made of a ring-shaped element. It is preferable to form the outer part of the case was such as to overlap the inside of the shell to determine at least one outlet exhaust section between which the overlapping parts of the outer surface of the inner part of the housing and the inner surface of the outer housing of the nozzle. Preferably, each outlet was made in the form of slits, the width of which is preferably from 0.5 to 5 mm In the preferred embodiment of the invention the outlet section has several outlets located at some distance from each other around the hole. For example, to determine several located at some distance from each other outlets in the exhaust area can be located one or more sealing elements. Preferably, the outlet had essentially the same size. In a preferred embodiment of the invention, in which the nozzle is annular and elongated, preferably, each outlet was located along the respective elongated sides of the inner periphery of the nozzle.

The nozzle may contain multiple separators designed to separate the overlapping portions of the inside of the housing and the outer housing of the nozzle. This can provide essentially uniform width of discharge holes around the center hole. The uniformity of the width of the outlet leads to a relatively smooth and substantially uniform air outlet from the nozzle.

The nozzle may include a surface, the pre is respectfully Coanda surface, located next to the exhaust section, guides coming out of the air stream over a given surface. In a preferred embodiment of the invention the shape of the outer surface of the inner part of the body of the nozzle is such that specifies the Coanda surface. The surface is a well-known Coanda surface which, when the flow of fluid emerging from the outlet close to the surface, there is the Coanda effect. Fluid tends to flow over the surface and near her, almost "sticking" to the surface or "holding" for her. The Coanda effect is a proven, well-documented way of Hobbies, in which the primary air flow is directed over the Coanda surface. Description of the properties of the Coanda surface and the action of the fluid flow flowing over the surface of the Coanda can be found in articles such as article Reba, the magazine Scientific American, volume 214, June 1966, pages from 84 to 92. Thanks to the use of the Coanda surface, the air coming from the vent area, suck through the hole larger amount of air on the outside of the fan.

In a preferred embodiment of the invention creates an air flow through the nozzle of the fan. In the following description, this air flow will be called the primary is susnik thread. The primary air flow comes out of the exhaust area of the nozzle and preferably passes over the Coanda surface. The primary air stream entrains the air around the exhaust area of the nozzle, which acts as an air amplifier, intended for supply to the user as the primary air flow and entrained air. Entrained air will be called secondary air flow. The secondary air flow is sucked out of the room, area or external environment of the exhaust area of the nozzle, and, thanks to the move from other areas around the fan and passes mostly through the opening defined by the nozzle. The primary air stream directed over the Coanda surface and combined with the entrained secondary air flow is the total air stream leaving or being pushed out of the orifice defined by the nozzle. Total air flow is enough to create a fan air flow, suitable for cooling. Preferably, the entrainment of air surrounding the exhaust area of the nozzle, was such that the primary air flow was increased at least five times, more preferably at least ten times, while maintaining the overall uniformity of the exit stream. Preferably, th is would nozzle contained an expanding surface, located on the stream after the Coanda surface. The expanding surface directs the air flow coming towards the user, while maintaining a smooth, uniform output flow and the creation of a suitable cooling effect to the user is not felt "choppy" thread.

Preferably, the nozzle contained several stationary guide blades, each of which is located in the inner channel and is designed to direct part of the air flow to the exhaust area. The use of such guide blades can provide essentially uniform distribution of the air flow through the exhaust section.

Preferably, the engine was a brushless DC motor. This eliminates friction losses and to ensure the absence of carbon dust from the brushes used in conventional brush-type motors. Reduction of carbon dust and emissions, it is advisable to clean or sensitive to contamination environments, such as a hospital, or in the presence of people suffering from allergies. Although induction motors are commonly used in centrifugal fans, also does not contain brushes, brushless DC motors can provide a much wider is the first range of operating speeds compared to induction motors. Preferably, the impeller was a paddle wheel with bias flow.

Located at the base of the intake air may contain a protective grid, with many holes. Preferably, the hole for air release was made with the possibility of moving air stream essentially vertically in the nozzle. Preferably, the base is cylindrical, and its height ranged from 100 to 300 mm, it is Preferable that the height of the fan ranged from 600 to 1500 mm

The fan can be located on the table or on the floor or can be mounted to the wall or ceiling. For example, the fan may be portable, located on the floor fan tower, designed to create air flow to air circulation, for example, in the bathroom, office or other premises.

The second object of the invention is a portable fan tower containing a base with an opening for air intake and hole for air release, and at the base is the impeller and the motor is designed to rotate the impeller to create an air flow from the vents for air intake to the outlet of air; and upright, elongated, annular housing containing an internal channel, intended the military for receiving the air flow from the base, and the final plot for the release of the air flow, the housing defines an opening through which the air stream coming out of the exhaust section, sucks air from the outside of the fan.

The third object of the invention is a portable fan tower containing the impeller located in the housing of the impeller; a motor designed to rotate the impeller to create an air flow coming from the body of the impeller is essentially in a vertical direction; and a vertical elongated housing containing an internal channel, used for receiving the air flow, and an exhaust section that is designed to release the air flow. Preferably, the air flow coming out of the exhaust section essentially horizontally. Preferably, the body had a hole through which the air stream coming from the exhaust area, were sucking air from the outside of the fan. Preferably, the shape of the internal channel provided the separation of the air flow into two air flow and the direction of each of the air flow along the corresponding side of the hole. Preferably, the building was circular and could contain a ring-shaped inner part of the housing and the annular outer portion of the housing, which together determine the amount of the internal channel and the outlet section. Preferably, the housing of the impeller was located in the fan base, and the base had a hole for air intake through which air is drawn into the base during rotation of the impeller.

The fourth object of the invention is the fan for creating an air stream containing a base with an opening for air intake and hole for air release, and at the base is the impeller and the motor is designed to rotate the impeller to create an air flow from the vents for air intake to the outlet of air; and an annular nozzle mounted on the base and containing an internal channel, used for receiving the air flow from the base, and an exhaust section that is designed to release the air flow, the nozzle defines an opening through which the air stream exiting the outlet of the plot sucks the outside air fan, and the height of the nozzle is equal to at least 60%, preferably at least 70% of the height of the fan. Preferably, the nozzle is vertical elongated annular nozzle. Preferably, base height ranged from 100 to 300 mm, and the height of the nozzle ranged from 500 to 1000 mm

The characteristics of the first object of the invention is equally applicable to the second, third and fourth objects of the invention and Vice versa.

Further, as an example will be described variant embodiment of the invention with reference to the accompanying drawings.

Figure 1 shows a fan of tower type, front view;

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

figure 3 - the fan base, depicted in figure 1, a view in section;

figure 4 - fan nozzle, depicted in figure 1, a perspective view with a spatial separation of the parts;

figure 5 is an enlarged view of region A indicated in figure 4;

figure 6 - nozzle, depicted in figure 4, a front view;

7, a nozzle, a view in section along the line E-E indicated in Fig.6;

on Fig - nozzle, a view in section along the line D-D indicated in Fig.6;

figure 9 is an enlarged view of part of the nozzle shown in Fig;

figure 10, a nozzle, a view in section along the line C-C indicated in Fig.6;

figure 11 is an enlarged view of part of the nozzle shown in figure 10;

on Fig - nozzle, a view in section along the line B-B indicated in Fig.6;

on Fig - enlarged view of part of the nozzle shown in Fig;

on Fig air stream passing through the nozzle section of the fan shown in figure 1.

Figure 1 and 2 shows an embodiment safe fan. In this embodiment of the invention safe fan made in the form of anybody who CSOs portable fan 10 tower type, contains the base 12 and a device for venting in the form of a nozzle 14 mounted on the base 12 and supported by the base 12. The base 12 contains essentially cylindrical outer casing 16 mounted if desired, the disc-shaped plate 18 of the base. The outer casing 16 has several devices 20 for air intake, made in the form of holes in the outer casing 16, through which the primary air flow is sucked into the base 12 from the external environment. In addition, the base 12 includes several user-controlled buttons 21 and user-driven controller 22 that is designed to control the operation of the fan 10. In this embodiment of the invention the height of the base 12 is from 100 to 300 mm, and the diameter of the outer housing 16 is from 100 to 200 mm

The nozzle 14 has an elongated annular shape and defines a Central elongated hole 24. The height of the nozzle 14 is from 500 to 1200 mm and width from 150 to 400 mm In this example, the height of the nozzle is equal to about 750 mm, and the width is approximately 190 mm Nozzle 14 includes an exhaust section 26 located at the rear of the fan 10 and is designed to release air from the fan 10 through the opening 24. The exhaust section 26 at least partially located around the opening 24. The inner peripheral surface of the nozzle 14 with the holding surface 28 Coanda, located next to the exhaust section 26 and over which the outlet section 26 directs the air coming from the fan 10; expanding surface 30 located on the stream after the surface 28 Coanda; and a guide surface 32 located on the stream after the expanding surface 30. The expanding surface 30 diverges from the Central axis X of the hole 24 in such a way as to facilitate the flow of air coming from the fan 10. The angle between the extending surface 30 and the Central axis X of the hole 24 is 5 to 15, and in this embodiment of the invention indicated angle is about 7. The guide surface 32 is at an angle to the extending surface 30, to further promote the effective delivery of the cooling air flow from the fan 10. In the shown embodiment of the invention the guide surface 32 is essentially parallel to the Central axis X of the hole 24 to provide an essentially flat and essentially smooth surface for the air flow coming from the outlet section 26. The flow after the guide surface 32 is visually attractive beveled surface 34, which ends with the end surface 36 located essentially perp ndikumana the Central axis X of the hole 24. Preferably, the angle between the beveled surface 34 and the Central axis X of the hole 24 was equal to about 45. The total depth of the nozzle 14 in the direction along the Central axis X of the hole 24 is from 100 to 150 mm and in this example is approximately 110 mm

Figure 3 shows the base 12 of the fan 10 in the cut. The outer casing 16 of the base 12 includes a bottom portion 40 and the main portion 42 located on the lower part 40 of the housing. In the lower part 40 of the body is the controller, indicated generally by the reference position 44 and is designed to control the operation of the fan 10 in response to the pressing of the user-controlled buttons 21, which are shown in figures 1 and 2, and/or in response to manipulation of a managed user controller 22. The lower part 40 of the housing can also contain a sensor 46 designed to receive control signals from a remote control (not shown) and to transmit these control signals to the controller 44. Preferably, these control signals are infrared signals. The sensor 46 is located behind the window 47 through which control signals are received in the lower portion 40 of the outer surface 16 of the base 12. Can also be a led (not shown), showing the presence of the fan 10 in the ready mode. The lower part 40 of the chassis also contains a mechanism, in telemoney reference position 48 and designed for oscillatory movement of the main portion 42 of the housing relative to the lower part 40 of the housing. Preferably, the range of the oscillatory cycle of the main part 42 of the housing relative to the lower part 40 of the housing ranged from 60 to 120, in this embodiment of the invention it is equal to approximately 900. In this embodiment of the invention, the oscillating mechanism 48 can perform approximately 3up to 5 oscillatory cycles per minute.

The power cable 50 extends through a hole made in the lower part 40 of the housing, and is intended to supply electric power to the fan 10.

The main part 42 of the housing contains a cylindrical protective net 60, which made a lot of holes 62 for forming devices 20 air inlet located in an external enclosure 16 of the base 12. In the main part 42 of the housing, there is an impeller 64, designed for suction of the primary air flow through the holes 62 in the base 12. Preferably, the impeller 64 had the form of a vane wheel with bias flow. The impeller 64 is connected with a rotating shaft 66 extending from the motor 68. In this embodiment of the invention, the motor 68 is a brushless DC motor, the speed of which is changed by the controller 44 in response to user interaction with the controller 22 and/or in response to a signal received from the remote UE is Alenia. Preferably, the maximum speed of rotation of the motor 68 ranged from 5,000 to 10,000 rpm Motor 68 is located in the casing, which contains the upper portion 70 that is connected with the bottom part 72. The upper portion 70 of the casing of the engine includes a diffuser 74 in the form of a stationary disk with spiral blades. The motor casing is installed in the housing 76 of the impeller, which generally has the shape of a truncated cone and is connected to the main part 42 of the housing. The shape of the impeller 64 and the housing 76 of the impeller is chosen such that the impeller 64 was located close to the inner surface of the casing 76 of the impeller, but have not touched it. Essentially ring-shaped element 78 air inlet connected to the lower part of the body 76 of the impeller and is intended for the direction of primary air flow into the housing 76 of the impeller. The body 76 of the impeller is positioned so that the primary air flow comes out of the housing 76 of the impeller essentially vertically upwards.

Shaped upper portion 80 of the housing is connected with the open upper end of the base part 42 of the housing base 12, for example, via a snap connection. For forming an airtight seal between the main body 42 of the casing and the upper part 80 of the housing base 12 can be used O-shaped sealing element 84. The upper portion 80 of the housing has a chamber 86, p is odnaznachno for receiving the air flow from the main portion 42 of the housing, and a hole 88 through which the primary air flow comes from the base 12 into the nozzle 14.

Preferably, the base 12 additionally contain sound-absorbing foam designed to reduce the propagation of noise from the base 12. In this embodiment of the invention the main part 42 of the housing base 12 includes a first essentially cylindrical element 89a, made of foam and located under the protective grid 60, and a second essentially annular element 89b, made of foam material and located between the housing 76 of the impeller and the element 78 to inlet air.

Next, with reference to figure 4-13 will be described nozzle 14 of the fan 10. The nozzle 14 includes a housing having an elongated annular outer portion 90 connected to the elongated annular inner part 92 of the casing and surrounding her. The inner portion 92 of the housing defines a Central opening 24 of the nozzle 14 and contains an outer peripheral surface 93, the form of which determines the surface 28 Coanda extending surface 30, the guide surface 32 and the beveled surface 34.

Along the outer portion 90 of the housing and the inner portion 92 of the housing define an annular inner channel 94 of the nozzle 14. The inner channel 94 is located in front of the fan 10. The inner channel 94 is the district of holes 24 and therefore, contains two essentially vertical side, each of which is adjacent to the corresponding elongated side of the center hole 24, the upper curved portion connecting the upper ends of the vertical parts; and the lower curved portion connecting the lower ends of the vertical parts. The inner channel 94 limited to the inner peripheral surface 96 of the outer part of the housing 90 and the inner peripheral surface 98 of the inner portion 92 of the housing. The outer portion 90 of the housing comprises a base 100, which is connected with the upper part 80 of the housing base 12, for example, by using a locking connection, and is located above the upper part 80 of the housing. The base 100 of the outer part of the housing 90 has an aperture 102 that is aligned with the hole 88 of the upper portion 80 of the housing base 12 and through which the primary air flow enters the lower curved portion of the inner channel 94 of the nozzle 14 from the base 12 of the fan 10.

As shown in Fig and 9, the exhaust section 26 of the nozzle 14 is located at the rear of the fan 10. The exhaust section 26 is formed by overlapping parts 104, 106 of the inner peripheral surface 96 of the outer portion 90 of the body and the outer peripheral surface 93 of the inner portion 92 of the housing, respectively. In this embodiment of the invention the outlet section 26 contains two of the Asti, each of which is located along the respective elongated sides of the Central hole 24 of the nozzle 14 and communicates with the corresponding vertical part of the inner channel 94 of the nozzle 14. Air flow through each of the exhaust section 26, essentially perpendicular to the air flow passing through the corresponding vertical portion of the inner channel 94 of the nozzle 14. Each of the exhaust section 26 has an essentially U-shaped cross-section, resulting in the direction of air flow is essentially reversed with the passage of the air flow outlet section 26. In this embodiment of the invention the overlapping portion 104, 106 of the inner peripheral surface 96 of the outer portion 90 of the body and the outer peripheral surface 93 of the inner part 92 of the case is made so that each of the exhaust section 26 includes a tapering portion 108, converging to the outlet 110. Every nozzle 110 is made in the form of essentially vertical slit, the width of which is preferably continuous and ranges from 0.5 to 5 mm In this embodiment of the invention, the width of each outlet 110 is approximately 1.1 mm

Thus, we can assume that the outlet section 26 has two outlet openings 110, each of colorinterpolator on the corresponding side of the Central hole 24. As shown in figure 4, the nozzle 14 further comprises two curved sealing element 112, 114, each of which forms a seal between the outer part 90 of the housing and the inner part of the housing 92 so that the leakage of air from the curved parts of the inner channel 94 of the nozzle 14 is essentially absent.

In order to direct the primary air flow into the exhaust section 26, the nozzle 14 includes several stationary guide vanes 120, which are located inside the inner channel 94 and each of which is designed to direct part of the air flow to the exhaust section 26. The guide vanes 120 are shown in figure 4, 5, 7, 10 and 11. Preferably, the guide blades 120 have been made in one piece with the inner peripheral surface 98 of the inner part 92 of the nozzle body 14. The guide vanes 120 are curved so that there was no significant loss of air speed in his direction in the outlet section 26. In this embodiment of the invention the nozzle 14 has two sets of guide vanes 120, with each set of guide vanes 120 directs the air flowing along the corresponding vertical portion of the inner channel 94 to the relevant part of the outlet section 26. Each set of guide vanes 120 are essentially vertically aligned and evenly races is defined relative to each other for the formation of several passages 122 between the vanes 120, through which the air is directed into the exhaust section 26. Uniform distribution of the guide vanes 120 provides essentially uniform distribution of the air flow along the length of the exhaust section 26.

As shown in figure 11, it is preferable that the shape of the guide vanes 120 was such that the portion 124 of each of the guide blades 120 can interact with the inner peripheral surface 96 of the outer part of the housing 90 of the nozzle 14 for separating the overlapping portions 104, 106 of the inner peripheral surface 96 of the outer portion 90 of the body and the outer peripheral surface 93 of the inner portion 92 of the housing. This can help maintain essentially constant width of each of the exhaust holes 110 along the length of each of the exhaust section 26. As shown in Fig.7, 12 and 13, in this embodiment of the invention along the length of each of the exhaust section 26, there are additional separators 126 can also be used to separate the overlapping portions 104, 106 of the inner peripheral surface 96 of the outer portion 90 of the body and the outer peripheral surface 93 of the inner portion 92 of the housing to maintain the required width of the outlet 110. Each separator 126 is located essentially in the middle between two adjacent vanes 120. D. the I ease of manufacture, preferably, to separators 126 were made in one piece with the outer peripheral surface 98 of the inner part 92 of the nozzle body 14. If desired between adjacent vanes 120 can be located more separators 126.

In use, when the user clicks on the corresponding one of the buttons 21, located on the base 12 of the fan 10, the controller 44 starts the motor 68 with the purpose of rotation of the impeller 64 that leads to the fact that the primary air stream is absorbed into the base 12 of the fan 10 through the device 20 to the air inlet. The flow rate of primary air flow can be up to 30 l/s, more preferably up to 50 l/s Primary air flow passes through the housing 76 of the impeller and the upper portion 80 of the base 12 and into the base 100 outer part 90 of the nozzle body 14, where the primary air flow enters into the inner channel 94 of the nozzle 14.

As shown in Fig, primary air flow, indicated by the reference position 148 is divided into two air flow (one of them Fig denoted by the reference position 150), which pass in opposite directions around the Central hole 24 of the nozzle 14. Each air stream 150 is included in a corresponding one of the vertical parts of the inner channel 94 of the nozzle 14 and is moved essentially vertically across the each of the parts of the inner channel 94. A set of guide vanes 120, located in every part of the inner channel 94 that directs air flow to 150 parts exhaust section 26, which is located next to the vertical part of the inner channel 94. Each of the guide vanes 120 sends the corresponding part 152 of the air flow to 150 parts exhaust section 26 so that there is essentially uniform distribution of the air flow 150 along the length of the exhaust section 26. The shape of the guide vanes 120 is such that each part 152 of the air stream 150 is fed into the exhaust section 26 essentially horizontally. In each of the exhaust section 26 in the direction of flow of the air stream essentially reversed, as shown by the reference position 154 on Fig. Part of the air stream is compressed, as part of the outlet section 26 converges towards the outlet 110, passes around the separator 126 and exits through the outlet 110 again in essentially horizontal direction.

The primary air stream coming out of the exhaust section 26, is directed over the top surface 28 of the Coanda nozzle 14, which leads to the creation of secondary air flow through the entrainment of air from the external environment, in particular from the area around the exhaust holes 110 of the exhaust section 26 and from the area around the rear is part of the nozzle 14. This secondary air flow passes through the Central hole 24 of the nozzle 14 where it is combined with the primary air flow and the result is the total air flow 156 or air jet, pushed forward from the nozzle 14.

Uniform distribution of the primary air flow along the exhaust section 26 of the nozzle 14 provides uniform airflow over the body surface 30. The expanding surface 30 causes a reduction in the average speed of the air flow due to the movement of air flow through the managed extensions. The relatively small angle between the extending surface 30 and the Central axis X of the hole 24 allows air flow to expand gradually. Otherwise abrupt or rapid deviation could result in breakage of the air flow and the formation of eddies in the field of extension. Such turbulence can lead to increased turbulence and associated noise in the air stream, which may be undesirable, especially in a household device, such as a fan. In the absence of the guide vanes 120 large part of the primary air flow will tend to leave the fan 10 through the top of the exhaust section 26 and exit from the discharge area 26 in the upward direction at an acute angle to the Central axis of the hole 24. In achiev is Tate this will lead to uneven distribution of air in the air stream, created by the fan 10. Moreover, a large part of the air flow from the fan 10 will not be properly distributed expanding surface 30, which creates an air stream with a much greater turbulence.

Air flow pushed forward for expanding the surface 30, may seek to continue to diverge. The presence of the guide surface 32, which is located essentially parallel to the Central axis X of the hole 24, provides the direction of air flow to the user or in the bathroom.

Depending on the speed of rotation of the motor 64, the mass flow rate of the air flow coming forward from the fan 10 can be up to 500 l/s, preferably up to 700 l/s and the maximum speed of the air jet may be from 3 to 4 m/s

The invention is not limited to the above detailed description. Specialists in this field can offer various changes.

For example, the base and the nozzle of the fan may have other dimensions and/or shape. The outlet of the outlet section may be different. For example, the outlet of the exhaust area can be wider or narrower to maximize air flow. The air stream exiting the outlet section can pass over a surface, such as the Coanda surface, but as alternatives to air flow can be released through the exhaust section and is directed forward from the fan without passing over the adjacent surfaces. The Coanda effect can be achieved for a range of different surfaces, or to achieve the required flow and entrainment can be used several internal and external structures. Expanding the surface can be of different lengths and have different designs. The guide surface may be of different lengths and can be located in different places and oriented differently depending on the different requirements for the fan or the different types of fans. In the Central opening defined by the nozzle can be located a variety of items, such as lighting devices, a clock or LCD display.

1. A fan for creating an air stream containing a base with an opening for air intake and hole for air release, and at the base is the impeller and the motor is designed to rotate the impeller to create an air flow from the vents for air intake to the outlet of air; and a vertical elongated annular nozzle that includes an internal channel, used for receiving the air flow from the base, and an exhaust section that is designed to release the air flow, the nozzle defines an elongated opening through which the air stream leaving the issue is knogo plot has the possibility of suction of air from outside the fan, and the nozzle includes an annular inner part of the housing and the annular outer portion of the housing, which together define the inner channel and the outlet section and the outlet section has an outlet located between the outer surface of the inner part of the body of the nozzle and the inner surface of the outer housing of the nozzle, while the final section has several outlets located at a distance from each other around the hole.

2. The fan according to claim 1, in which the shape of the inner channel provides separation of the air flow into two air flow and the direction of each of the air flow along the corresponding side of the hole.

3. The fan according to claim 1, in which the exhaust hole is made in the form of slits.

4. The fan according to claim 1, in which the width of the outlet is from 0.5 to 5 mm

5. The fan according to claim 1, in which each outlet is oriented essentially vertically.

6. The fan according to claim 5, in which the outlet openings are essentially the same size.

7. The fan according to claim 1, in which the inner channel runs around the holes on the distance of from 500 to 2500 mm

8. The fan according to any one of claims 1 to 7, in which the nozzle includes a surface raspolojennaya with an outlet section, directing the air flow over a given surface.

9. The fan of claim 8, in which said surface is a surface
Coanda.

10. The fan of claim 8, in which the nozzle includes extending surface located on the stream after the Coanda surface.

11. The fan according to any one of claims 1 to 7, which is located at the base of the hole for the air intake includes a protective grid, with many holes.

12. The fan according to any one of claims 1 to 7, which is located at the base of the hole for air release is made with the possibility of moving air stream essentially vertically in the nozzle.

13. The fan according to any one of claims 1 to 7, in which the base height is from 100 to 300 mm.

14. The fan according to any one of claims 1 to 7, in which the base is substantially cylindrical.

15. The fan according to any one of claims 1 to 7, in which the motor is a brushless DC motor.

16. The fan according to any one of claims 1 to 7, in which the height of the fan is from 600 to 1500 mm

17. The fan according to any one of claims 1 to 7, which is a portable fan tower type.

18. Portable fan tower containing a base with an opening for air intake and hole for air release, and at the base is the impeller and the motor, DL designed the rotation of the impeller to create an air flow from the vents for air intake to the outlet of air; and vertical elongated annular housing containing an internal channel, used for receiving the air flow from the base, and an exhaust section that is designed to release the air flow, the housing defines an elongated opening through which the air stream coming from the exhaust area, has the possibility of suction of air from outside the fan, the housing contains an annular inner part of the housing and the annular outer portion of the housing that define the inner channel and the outlet section and the outlet section has an outlet located between the outer surface of the inner part of the body and the internal surface of the outer housing, while the outlet section has several outlets located at a distance from each other around the hole.

19. The fan on p, which form the inner channel provides separation of the air flow into two air flow and the direction of each of the air flow along the corresponding side of the hole.

One on p, in which the exhaust hole is made in the form of slits.

21. The fan on p, in which the width of the outlet is from 0.5 to 5 mm

22. The fan on item 21, in which each outlet is oriented essentially in rikaline.

23. The fan on p.22, in which the outlet openings are essentially the same size.

24. The fan on p in which the inner channel goes around the hole at a distance of 500 to 2500 mm

25. The fan on any of PP-24, in which the frame includes a surface adjacent to the exhaust section, directing the air flow over a given surface.

26. The fan on A.25, in which the said surface is a surface of the Coanda.

27. The fan on A.25, in which the body contains an expanding surface located on the stream after the Coanda surface.

28. The fan on any of PP-24, which is located at the base of the hole for the air intake includes a protective grid, with many holes.

29. The fan on any of PP-24, which is located at the base of the hole for air release is made with the possibility of moving air stream essentially vertically in the case.

30. The fan on any of PP-24, in which the base height is from 100 to 300 mm.

31. The fan on any of PP-24, in which the base is substantially cylindrical.

32. The fan on any of PP-24, in which the motor is a brushless DC motor.



 

Same patents:

FIELD: heating.

SUBSTANCE: invention relates to a fan for a heating device in a vehicle. The fan comprises an electric drive of a fan, and also a wheel made as capable of fan driving with the drive, besides, closure of the electric contact of the fan drive is carried out with the help of spring contacts. Besides, there is a fan channel made in the fan body connected to the fan electric drive as circularly arranged around the axis (A) of rotation, being open at the axial side closed with the fan wheel, and the fan channel comprises an inlet zone and an outlet zone separated by means of an interruption zone, besides, in the fan body there is a hole, through which the driving shaft of the fan drive stretches as connected with the wheel for joint rotation.

EFFECT: invention is aimed at creation of more reliable electric closure of a fan contact.

10 cl, 4 dwg

Fan // 2507419

FIELD: engines and pumps.

SUBSTANCE: bladeless fan includes nozzle 1 and a creation device of flow through it. Nozzle 1 has internal channel 10, outlet opening 12 for receiving air flow from internal channel 10. Coanda surface 14 adjacent to outlet opening 12; with that, outlet opening 12 is located so that air flow can be directed along that surface, and a diffuser located after Coanda surface. Diffuser has surface 46. Air flow creation device through nozzle 1 is made in the form of impeller 30 driven by electric motor 22.

EFFECT: creation of a more uniform air flow along the whole working surface of the fan; making its more compact and safer.

17 cl, 5 dwg

Fan // 2505714

FIELD: ventilation.

SUBSTANCE: fan is designed for creation of an air jet in a room, an office or other rooms. A bladeless fan includes nozzle (14) installed on base (12), and an air flow creation device. Nozzle (14) includes internal channel (94) intended to receive an air flow, outlet section (26) designed for air flow discharge and several fixed guide vanes (120), each of which is located in internal channel (94) and intended to direct some part of the air flow to outlet section (26). Nozzle (14) determines hole (24) through which the air flow leaving outlet section (26) sucks the air outside the fan.

EFFECT: improvement of comfortable conditions and increase of fan safety.

33 cl, 14 dwg

Fan // 2504694

FIELD: machine building.

SUBSTANCE: bladeless fan includes a nozzle and an air flow creation device through the nozzle; besides, the nozzle includes an internal channel, an outlet section intended for air flow reception from the internal channel and a surface that adjoins the outlet section, above which the outlet section is made so that it guides the air flow; the nozzle is installed on a rack with adjustable height.

EFFECT: increasing safety when using a fan.

19 cl, 15 dwg

Fan // 2463483

FIELD: ventilation.

SUBSTANCE: fan without blades for creation airflow contains a nozzle 1 mounted on the basis 16, comprising means for creating an air flow - the impeller 30 and diffuser 32, through the nozzle 1. Nozzle 1 has an inner channel 10 for receiving the air flow from the base 16 and an outlet 12 through which the air flow is released. The nozzle 1 is located around the axis and locates the opening 2, through which outside the fan the air is pulled in through airflow discharged from the outlet 12. The nozzle 1 has a surface over which there is a discharge opening 12 for directing the air flow. The surface comprises a diffuser part 46 moving away from the axis, and the guiding part 48, located downstream after the diffuser part 46 at an angle to the latter.

EFFECT: creation of a compact low noise safe device.

28 cl, 5 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

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

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

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

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

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

Up!