Centrifugal ceiling fan

FIELD: heating.

SUBSTANCE: this invention relates to a centrifugal ceiling fan. The proposed fan includes a casing, a motor and an impeller. The above casing has an upper surface with an air intake and a lower surface with an air bleed. According to a preferable version of the invention, the specified lower surface has a round, bowl shape; besides, there is a group of holes in it, which determine the air bleed. The above impeller includes a rotary shaft and a group of blades located around the above said shaft. The above said blades are preferably of a curved shape to provide air flow in all directions between the first direction that is mainly perpendicular to the rotary shaft and the second direction that is mainly parallel to the rotary shaft, due to which uniform room ventilation is provided. In the proposed fan a provision can also be made for a heating element for heating of the air leaving the fan.

EFFECT: invention is aimed at creation of a noiseless fan that is safe at operation and provides for uniform air distribution inside the room.

15 cl, 9 dwg

 

Reference to related applications

For the present application claims priority of a provisional application for U.S. patent No. 61/257594, filed November 2, 2009, the content of which is fully incorporated herein by reference.

Area of technology

The present invention relates to ceiling fans.

The level of technology

Fig.1 shows a known axial ceiling fan 20. Specified ceiling fan 20 includes a set of blades 22, the lamp 24, a motor 26, which provides the rotation of the blades 22, and a mounting means 28 for attaching the centrifugal fan to the ceiling.

Fans of this type have some disadvantages, one of which is uneven distribution of the air inside the room. The fan blades are fixed perpendicular to the axis of rotation and push the air downwards in the direction in which the axis of rotation. As a result, the area outside the radius of the blades remains ventilated. In addition, the disadvantages of axial fans is the considerable space occupied by the blades, and safety problems associated with the fact that during the rotation of the blade open.

To eliminate these drawbacks, it was proposed a number of technical solutions. For example, in document US 2007/0247854 revealed patalon�th fan, in which the blades are closed casing, as shown in Fig.2. The device proposed in this document, in essence, provides the only solution to the security problem. In this case, the space occupied by the blades, in fact, remains the same or even larger than the space shown in Fig.1. In addition, this known fan also does not provide uniform air distribution.

One way to reduce the size of the fan is to reduce the length of the blades. However, in this case to achieve the same effect of ventilation it is necessary to increase the rotation speed, resulting in increased power consumption and noise level.

The different ways to eliminate the above disadvantages is disclosed in documents US 1699201, US 4473000, US 4768424, US 7381129. However, the device known from document data, provide a solution to some problems at the expense of others.

Thus, there is a need to create a ventilation device that would be effective, it is safe to operate, quiet and provided a uniform distribution of the air inside the room.

Disclosure of invention

In the present invention a centrifugal ceiling fan to move the air flow instead of the blades contains the impeller. Specified cu�Latka installed in the casing, thereby excluded from the construction outside the rotating elements. With this design, we offer you the fan has a higher security compared with axial fan, since the axial fan blades create a danger to any object that is next to the device.

In accordance with the first aspect of the present invention a centrifugal ceiling fan comprising a housing having a top surface with the air inlet and the lower surface of the exhaust vent, and the specified lower surface includes a top section and bottom section and has a variable diameter between the upper and lower sections, the diameter of the bottom surface in the upper section exceeds its diameter in the lower section. The specified fan has an impeller containing a rotating shaft and a set of vanes positioned around the specified shaft, wherein the blade is curved in shape to provide air movement essentially in all directions between the first direction essentially perpendicular to the rotating shaft, and the second direction is essentially parallel to the rotating shaft. We also offer fan has a motor functionally connected with the said impeller to ensure� rotational movement, wherein said engine and the impeller is installed in the specified enclosure. As a result of rotation of the impeller, the air enters through said inlet and out of the specified outlet, essentially in all directions between the first and second directions.

The blades preferably have a variable width corresponding to the specified variable diameter.

The bottom surface preferably has a Cup-shaped form.

In accordance with one variant of the invention, the upper section and lower section are connected by means of connecting elements. At least one of the connecting elements is provided a heating element for heating the air. Alternatively, at least one heating element for heating air provided between the two connecting elements.

The outside of the casing may be mounted on the air supply regulator. In this case, the air supply regulator contains a set of rings of different diameter, located between the top section and the bottom section and providing the direction. In one embodiment of the invention, the distance between at least two rings is adjustable. In yet another embodiment of the invention, the angle at which there is at least one to�ICO, is adjustable.

The specified upper surface preferably forms the lid, and the upper section of the bottom surface defines an opening into which is inserted the specified cover.

In one embodiment of the invention, the impeller includes a top plate and bottom plate, which is attached to the rotating shaft. These upper and lower plates have holes to insert them in respectively the upper and lower ends of the blades. In this case, the motor of the centrifugal fan has a cylindrical shape and between the first and second ends includes a flange. Wherein the fan further comprises a fixed plate which rests on the inner side of the casing over a specified upper plate, and in said stationary plate, a hole whose diameter exceeds the diameter of said motor and less than the specified diameter of the flange. The motor is preferably supported on the specified fixed plate by means of the mentioned flange, and a portion of said motor located below the flange passes through said hole for connection to the impeller.

In one embodiment of the invention between the engine and a part of said motor, located above the flange, is provided by the combination of the separating elements, fixing the specified DV�hotel in a predetermined position.

According to the present invention at the upper section of the air is directed essentially perpendicular to the rotating shaft, and the bottom section of the air is directed essentially parallel to the rotating shaft.

In accordance with another aspect of the present invention a centrifugal ceiling fan comprising a housing having a top surface with the air inlet and the lower surface of the exhaust vent; the impeller, functionally connected to the engine to generate a flow of air, wherein the said impeller and said engine is installed in the specified casing; and an air supply regulator provided with external parties specified in the casing to direct the flow of air.

The air supply regulator preferably includes a set of rings spaced from each other, one above the other between the upper and lower sections of the lower surface.

According to one variant of the invention, the distance between the two rings is adjustable. According to another embodiment of the invention, the angle at which there is at least one ring is adjustable.

The characteristics and advantages of the present invention will be more apparent from the following detailed description of preferred embodiments of the ones illustrated on prilog�per drawings. It should be understood that in the present invention described and claimed herein can be made various changes falling within the scope of legal protection of the claims. Accordingly, the drawings and description should be considered as illustrative and not restrictive, with the full scope of the present invention described in the claims.

Brief description of the drawings

Additional features and advantages of the present invention will become clearer from the detailed description given below with reference to the accompanying drawings, which depict the following:

Fig.1 shows a conventional axial ceiling fans;

Fig.2 shows a known axial ceiling fan with a casing;

Fig.3 shows a centrifugal ceiling fan according to one embodiment of the present invention;

Fig.4 with the spatial separation of the parts shown centrifugal ceiling fan with Fig.3;

Fig.5 illustrates an example of execution of the blades having a curved shape;

Fig.6 illustrates a uniform distribution of the flow of air passing through the ceiling fan of Fig.3;

Fig.7 shows another embodiment of the present invention, according to which the proposed Venti�ATOR contains an air supply regulator;

Fig.8 shows another embodiment of the present invention, according to which the proposed fan contains a set of plate elements;

Fig.9 shows another embodiment of the present invention, according to which the impeller of the proposed fan made in the form of a "squirrel cage".

It should be noted that the same elements are designated in the accompanying drawings the same number of positions.

The implementation of the invention

In the present invention a centrifugal ceiling fan. The said fan comprises a housing, the motor and the impeller. Said housing has an upper surface with the air inlet and the lower surface of the exhaust vent. In accordance with the present invention, the bottom surface has a rounded, bowl-shaped form, and made a set of holes that define the specified outlet. The fan wheel comprises a shaft and a set of vanes positioned around the shaft. These blades can be made curved shape to provide air movement in all directions between the first direction essentially perpendicular to the rotating shaft, and the second direction is essentially parallel to the rotating shaft, whereby there is a uniform ventilation �of Emesene. The proposed fan may contain a heating element for heating the air leaving the fan.

Fig.3 shows a centrifugal ceiling fan according to one embodiment of the present invention. As can be seen in Fig.3, centrifugal ceiling fan 40 comprises a housing. Said housing has a rounded shape and includes a lower Cup-shaped portion 42 of the exhaust vent and the top portion 43 forming the cover and having the air inlet. The lower portion 42 has an upper section 44 and a lower section 46. The lower portion 42 has a variable diameter, the diameter of the bottom portion 42 in the upper section 44 is greater than its diameter in the lower section 46. The upper and lower sections are connected by a set of connecting elements 48. These connecting elements 48 are spaced from each other so that between them formed hole. These holes can pass between the upper section 44 and a lower section 46.

Centrifugal ceiling fan 40 has the impeller 52 and the electric motor 50 (see Fig.4), which leads the specified impeller 52 to rotate. Ceiling fan 40 may be attached to the ceiling by means of known fastening means through the upper end of the cap 43. To attach the device to a ceiling junction box you can use clamps or �odobnye fastening means.

Fig.4 centrifugal ceiling fan with Fig.3 shows the spatial separation of the parts. As can be seen in Fig.4, the impeller 52 has a rotating shaft 52 mounted between two nuts 54, and a set of blades 56, angled around the shaft 52 between the upper plate 58 and the bottom plate 60. In this embodiment of the invention, the upper 58 and lower 60 plates include a set of holes to insert them in respectively the upper and lower ends of the blades.

In this embodiment of the invention, the motor 50 is cylindrical and between its two ends contains a flange. Between the upper plate 58 and the cover 43 is provided by a stationary plate 62 which serves as a support for the engine 50. Fixed plate 62 rests on the inner side of the casing, and the said plate 62, a hole 64, the diameter of which is slightly larger than the diameter of the engine and less than the diameter of the flange. Said hole 64 is designed to accommodate that part of the engine located under the flange. In this embodiment of the invention between the cover 43 and the plate 62 is provided by the combination of the separating elements 66, through which the motor 50 is fixed within the housing. As shown in Fig.4, the shape and dimensions of the spacers 66 are selected to accommodate the upper part of the engine located�enny above the flange. It should be noted that despite the advantage of the presence of the separating elements 66 is optional because the cover 43 may be attached to the form, ensures retention of the engine 50 in a predetermined position.

As can be seen in Fig.4, the upper section 44 of the bottom part 42 of the casing 40 defines a hole into which is inserted a cover 43. Cover 43 includes a set of ribs 68, located between its upper and lower surfaces. The ribs 68 are spaced from each other so that between them formed hole. As shown in Fig.4, the top plate 58 and the stationary plate 62 also have a set of cut-outs for the passage of air through them.

In order to provide uniform ventilation through the ventilation holes, the vanes of the proposed fan, you can perform bent to move the air, essentially in all directions between the first direction essentially perpendicular to the rotating shaft, and the second direction is essentially parallel to the rotating shaft, as shown in Fig.6.

Fig.5 illustrates an example of execution of the blades having a curved shape. These blades can be made of variable width in order to allow for their installation within the housing. In this case, the width of the blades at the top edge may exceed their Shi�inu at the bottom edge. In one embodiment of the invention the width of the blades corresponds to the diameter of the casing.

During operation, the motor 50 causes the rotation of the impeller 52 of the fan. Air enters through the air intake openings formed in the cover, and moves in all directions between the first direction essentially perpendicular to the rotating shaft, and the second direction is essentially parallel to the rotating shaft, whereby there is a uniform ventilation of the room. Fig.6 illustrates a uniform distribution of the air flow passing through the ceiling fan shown in Fig.3. As can be seen in Fig.6, the air is drawn out of the holes made in the lid 43, passes through the plate 62, the upper plate 58 and then moves around the room in all directions. The shape of the lower portion 42 of the casing 40 defining the vent, and the shape of the blades 56 together provide uniform air distribution throughout the room, as shown in Fig.6.

In one embodiment of the invention ceiling fan 40 has a heating element, whereby the said fan can be selectively used for cooling or heating. Specified heating element may be located between the impeller and the casing, whereby the heated air stream exiting from the casing. This arrangement helps to reduce heating costs and thus make centrifugal ceiling fan 40 is economically favorable. In one embodiment of the invention, the heating element may be provided on the connecting elements 48. In another embodiment of the invention, the heating element may be provided between the connecting elements or may be formed as a damper for one or more holes through which the air exits the fan 40.

The engine 50 and the heating element are fed by an electric current. The engine 50 and the heating element can operate with different types of currents and voltages. The supply to the motor and heating element may be provided by known methods.

The possibility of adjusting the rotational speed of the motor 50, whereby the fan can be used in different rooms, and adapt it to your current needs and desires of users within a particular space. Similarly, we can envisage the possibility of setting the parameters of the heating element so that they meet the requirements for different heating areas. To control the motor 50 and the heating element can be remotely from the control panel and/or remote remote� management, which are commercially available.

Specialist in the art should understand that many of the elements described in this document, such as a motor, control panel, remote control, available on the market and can be selected to provide the functions described above.

According to another embodiment of the invention, the fan may include an air supply regulator to direct the flow of air to the desired location. Fig.7 shows a centrifugal ceiling fan containing the air supply regulator. The specified air supply regulator contains a sequence of rings 70 which are spaced apart, one above the other. These rings 70 are of different radii, with the largest ring is positioned closest to the upper section 44 and the smallest ring is positioned closest to the bottom section 46. These rings are arranged at different angles to provide directional movement of air in different directions. According to the present invention the distance between the rings and/or the angle, under which each ring can be adjusted by the user manually and/or remotely depending on your needs, from the area in the room where he sits, and/or the dimensions of the room. For example, if the ceiling height is greater than average, then the angle to�which are the ring reduce, so that the air is moved down to the living space, and not perpendicular to the walls.

Fig.8 shows another embodiment of the present invention, according to which centrifugal ceiling fan 80 contains a set of plate elements around the casing 82. These plate elements 82 may be located at a distance of a quarter of an inch from each other, i.e. at a distance sufficient so as not to create any counter for the output of the air flow. The impeller of the fan enables the directed movement of air to the desired location, as described above. Centrifugal fan 80 may have a design that meets the buyer from an aesthetic point of view. In one embodiment of the invention for plate elements may be provided a heating element for heating the air leaving the fan housing,

Fig.9 shows another variant embodiment of the invention, according to which the impeller of the proposed fan made in the form of a "squirrel cage". In one embodiment, the flow direction is determined by the design of the shell and/or the previously described air supply regulator shown in Fig.7. In another embodiment of the invention (not shown) of the blade "squirrel cage" can be bent to move the air in many�the number of directions, just as it happens in the embodiment of the invention shown in Fig.3-5.

In any of the above variants of the invention the specified fan may contain a lamp simultaneously to ensure ventilation and lighting. The lamp is preferably performed in the lower section of the casing.

Although the above description of preferred embodiments of the illustrated in the accompanying drawings, specialists in the art should be understood that various modifications are possible that fall under the scope of protection of the present invention. Such modifications should be considered as options, not exceeding the limits of legal protection of this invention.

1. Centrifugal ceiling fan, comprising:
a casing having a top surface with the air inlet and the lower surface of the exhaust vent, and the specified lower surface includes a top section near the top surface and the bottom section opposite the specified upper section;
the impeller containing a rotating shaft and a set of blades arranged around a specified rotating shaft;
the engine is functionally connected with the said impeller to bring it into a rotary motion
the blade is curved in shape and have a width, edit�nauseosa along the specified direction of the rotating shaft, so, as a result of rotation of these blades around a rotating shaft, the air enters through said inlet and out of the specified outlet, essentially in all directions between the first direction essentially perpendicular to the rotating shaft, and the second direction is essentially parallel to a specified rotating shaft.

2. Centrifugal ceiling fan according to claim 1, wherein the width of the blades is reduced to said lower section bottom surface.

3. Centrifugal ceiling fan according to claim 1, in which the upper section of the air is directed essentially perpendicular to the rotating shaft, while the lower section is directed essentially parallel to the rotating shaft.

4. Centrifugal ceiling fan according to claim 1, further comprising a heating element for heating the air discharged from the casing.

5. Centrifugal ceiling fan according to claim 4, wherein said heating element is located within said casing.

6. Centrifugal ceiling fan according to claim 1, further comprising an air supply regulator, providing the directed movement of air at the specified location.

7. Centrifugal ceiling fan according to claim 6, in which the orientation angle of the specified air supply regulator relative to the specified casing is R�gulliuani.

8. Centrifugal ceiling fan according to claim 1, wherein said air outlet has a set of holes separated by connective elements.

9. Centrifugal ceiling fan according to claim 1, wherein said motor and the said impeller is installed in the specified enclosure.

10. Centrifugal ceiling fan according to claim 1, wherein the top surface forms the lid, and the upper section of the bottom surface defines an opening into which is inserted the specified cover.

11. Centrifugal ceiling fan according to claim 1, wherein the said impeller has openings for the insertion of these blades.

12. Centrifugal ceiling fan according to claim 1, wherein the engine has a cylindrical shape and between the first and second ends includes a flange, and
the said fan further comprises a fixed plate, wherein in said stationary plate, a hole whose diameter exceeds the diameter of said motor and less than the specified diameter of the flange,
moreover, the engine is supported by a specified fixed plate by means of the mentioned flange, and a portion of said motor located below the flange passes through said hole for connection to the impeller.

13. Centrifugal ceiling fan according to claim 4, wherein said heating element� is located between the impeller and the casing of the fan.

14. Centrifugal ceiling fan according to claim 4, wherein said heating element is located at one of the holes defining washboard.

15. Centrifugal ceiling fan, comprising:
a casing having a top surface with the air inlet and the lower surface of the exhaust vent,
the impeller, functionally connected to the engine to generate a flow of air, wherein the said impeller and said engine is installed in the specified casing, and
the air supply regulator provided with external parties specified in the casing to direct the flow of air, and
this impeller has a collection of blades, wherein the blade is curved in shape and have a width varying along the specified direction of the rotating shaft so that the blades taper to the lower end of the casing opposite the inlet, and the rotation of the blades, the air enters through said inlet and out of the specified outlet, essentially in all directions between the first direction essentially perpendicular to the rotating shaft, and the second direction is essentially parallel to a specified rotating shaft.



 

Same patents:

Fan // 2526135

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

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

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!