CN111795073A - Gas bearing, compressor and air conditioning unit - Google Patents
Gas bearing, compressor and air conditioning unit Download PDFInfo
- Publication number
- CN111795073A CN111795073A CN202010797767.7A CN202010797767A CN111795073A CN 111795073 A CN111795073 A CN 111795073A CN 202010797767 A CN202010797767 A CN 202010797767A CN 111795073 A CN111795073 A CN 111795073A
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- gas bearing
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 11
- 239000011148 porous material Substances 0.000 claims abstract description 14
- 230000008093 supporting effect Effects 0.000 claims abstract description 13
- 239000007770 graphite material Substances 0.000 claims description 6
- 238000009827 uniform distribution Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 230000002706 hydrostatic effect Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000462 isostatic pressing Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
- F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention relates to a gas bearing, a compressor and an air conditioning unit, wherein the gas bearing comprises a bearing shell (10) and a throttling piece (20), the bearing shell (10) comprises a supporting surface for supporting a rotating part (30), the bearing shell (10) is provided with a gas supply hole (12), the throttling piece (20) is arranged on one side, close to the supporting surface, of the bearing shell (10), the throttling piece (20) comprises a porous material, and one side, close to the bearing shell (10), of the throttling piece (20) is provided with a gas inlet groove communicated with the gas supply hole (12). The compressor includes a gas bearing. The air conditioning unit includes a gas bearing or a compressor. The invention can further distribute the air supply through the air inlet groove at one side of the throttling element close to the bearing shell, which is beneficial to realizing the uniform distribution of the air supply and improving the performance of the bearing.
Description
Technical Field
The invention relates to the technical field of gas bearings, in particular to a gas bearing, a compressor and an air conditioning unit.
Background
At present, the aerostatic radial bearing is widely applied to the fields of high-precision measuring instruments, high-speed machine tool spindles, high-speed turbine machinery, aerospace, petrochemical industry and the like. When the gas static pressure radial bearing is used as a supporting part of the rotor, the friction between the rotor and the inner surface of the bearing can be avoided in the starting and stopping processes of the rotor due to the static pressure effect, and the service life of the bearing is effectively prolonged.
With the aggravation of energy situation and the improvement of the requirement on environmental protection, higher requirements are put forward on the energy efficiency of the compressor in the field of the refrigeration compressor. The gas static pressure radial bearing has the advantages of small friction loss, small heat productivity, long service life and the like, and provides a choice for realizing high energy efficiency of the refrigeration compressor.
The working medium in a refrigeration compressor is a refrigerant, which has a lower viscosity coefficient than air. The gas hydrostatic bearing is applied to the refrigeration compressor, the structure of the existing refrigeration compressor using the oil lubrication bearing can be simplified, an oil supply system is not needed, and the oil-free refrigeration compressor is realized, so that the energy efficiency of a unit is improved.
Because the viscosity coefficient of the refrigerant is low, when the refrigerant is used as a lubricating medium of the aerostatic bearing, the static pressure effect and the dynamic pressure effect of the bearing are reduced, and the rigidity characteristic, the damping characteristic, the bearing capacity and the bearing stability of the bearing are reduced. In order to improve the overall performance and high-speed stability of the aerostatic bearings for refrigerants, it is necessary to improve the structure of the aerostatic bearings.
It is noted that the information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
Disclosure of Invention
The embodiment of the invention provides a gas bearing, a compressor and an air conditioning unit,
according to an aspect of the present invention, there is provided a gas bearing comprising:
a bearing housing including a support surface for supporting the rotating member, the bearing housing being provided with an air supply hole; and
the throttling piece is arranged on one side, close to the supporting surface, of the bearing shell and comprises a porous material, and an air inlet groove communicated with the air supply hole is formed in one side, close to the bearing shell, of the throttling piece.
In some embodiments, the inlet slots include a first slot disposed along a circumferential direction about the axis of the bearing housing and a second slot in communication with the first slot and extending from the first slot in a direction away from the first slot.
In some embodiments, the number of the second grooves is plural, and the plural second grooves are radially distributed from the first groove.
In some embodiments, the number of the second grooves is plural, and the plural second grooves form the star-shaped air inlet structure around the first groove.
In some embodiments, the number of the air intake structures is plural, and the plural air intake structures are uniformly arranged in the circumferential direction of the first groove.
In some embodiments, the depth of the air inlet groove is 0.05-0.1 times the thickness of the throttling piece.
In some embodiments, the porous material comprises an isostatically pressed graphite material.
In some embodiments, the gas bearing further comprises a wire mesh disposed on a side of the bearing housing remote from the orifice.
In some embodiments, the side of the bearing housing remote from the restriction is provided with a mounting groove in which the wire mesh is mounted.
In some embodiments, the mounting slots are arranged in a ring shape along a circumferential direction about the axis of the bearing housing; alternatively, the number of the mounting grooves is plural, and the plural mounting grooves are arranged at intervals in a circumferential direction around the axis of the bearing housing.
In some embodiments, the air supply hole communicates with an external air supply source, and a wedge groove is provided on a side of the orifice member away from the support surface.
According to another aspect of the present invention, there is provided a compressor comprising the gas bearing described above.
According to a further aspect of the invention, there is provided an air conditioning assembly comprising a gas bearing as described above or a compressor as described above.
Based on the technical scheme, the throttling piece is arranged on one side, close to the supporting surface, of the bearing shell and comprises the porous material, and the porous material is favorable for enabling air pressure to be uniformly diffused to the surface, far away from the bearing shell, of the throttling piece, so that the stability of the bearing is improved; and one side of the throttling piece close to the bearing shell is provided with an air inlet groove communicated with the air supply hole, so that the air supply can be further distributed at one side of the throttling piece close to the bearing shell through the air inlet groove, the uniform distribution of the air supply is favorably realized, and the performance of the bearing is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic structural view of an embodiment of a gas bearing according to the present invention.
Fig. 2 is a schematic structural view of an air inlet groove in one embodiment of the gas bearing of the present invention.
Fig. 3 is a schematic structural view of another embodiment of the gas bearing of the present invention.
FIG. 4 is a schematic view of a bearing housing in an embodiment of the gas bearing of the present invention.
Fig. 5 is a schematic view showing a structure of a bearing housing in which a wire mesh is installed in one embodiment of the gas bearing of the present invention.
Fig. 6 is a partial structural view of a bearing housing with a wire mesh installed therein according to another embodiment of the gas bearing of the present invention.
FIG. 7 is a schematic view of the structure of the throttle member and the rotor in accordance with an embodiment of the gas bearing of the present invention.
In the figure:
10. a bearing housing; 11. mounting grooves; 12. an air supply hole; 20. a throttle member; 21. a first groove; 22. a second groove; 23. an air intake structure; 24. a wedge-shaped groove; 30. a rotating member; 40. a wire mesh.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the scope of the invention.
As shown in fig. 1, in some embodiments of the gas bearing provided by the present invention, the gas bearing includes a bearing housing 10 and a throttle 20, the bearing housing 10 includes a support surface for supporting a rotating member 30, the bearing housing is provided with a gas supply hole 12, the throttle 20 is disposed at a side of the bearing housing 10 adjacent to the support surface, the throttle 20 includes a porous material, and a side of the throttle 20 adjacent to the bearing housing 10 is provided with a gas inlet groove communicating with the gas supply hole.
In the above embodiment, the throttling element 20 is arranged on the side of the bearing housing 10 close to the supporting surface, and the throttling element 20 comprises a porous material, so that the air pressure can be uniformly diffused to the surface of the throttling element 20 far away from the bearing housing 10 through the porous material, and the stability of the bearing is improved; moreover, the side of the throttling element 20 close to the bearing shell 10 is provided with an air inlet groove communicated with the air supply hole 12, so that the air supply can be further distributed through the air inlet groove at the side of the throttling element 20 close to the bearing shell 10, the uniform distribution of the air supply is favorably realized, and the performance of the bearing is improved.
The gas provided for the gas bearing enters the inside of the bearing housing 10 from the gas supply hole 12, and after entering the inside of the bearing housing 10, the gas firstly reaches the gas inlet groove, and then reaches the gap between the rotating part 30 and the throttling part 20 through the porous structure of the throttling part 20 to form a gas film, the rotating part 30 rotates under the supporting action of the gas film, and the rotating part 30 does not contact with the throttling part 20 and the bearing housing 10 during the rotation, so the friction can be reduced, and the service life of the bearing can be prolonged.
As can be seen from the flow path of the gas, the supply gas can be further distributed upstream of the porous structure of the throttle element 20 by providing gas inlet grooves, which are advantageous for a more uniform surface pressure on the side of the throttle element 20 remote from the bearing housing 10.
In addition, the air inlet groove is arranged on one side of the throttling piece 20 close to the bearing shell 10, and for a radial bearing, the air inlet groove is arranged on the periphery of the throttling piece 20, so that the processing is convenient; for the axial bearing, the air inlet groove is arranged on the outer side surface of the throttling element 20, and the processing is also convenient.
The gas bearing in the above embodiment may be a hydrostatic bearing or a hydrodynamic bearing; the bearing can be an axial bearing or a radial bearing.
In the axial gas bearing, the rotating member 30 includes a first rotating portion extending in the axial direction and a second rotating portion extending in the radial direction, the bearing housing 10 is fitted around the outer periphery of the first rotating portion and is used to support the second rotating portion, the throttle member 20 is disposed between the bearing housing 10 and the second rotating portion, the end surface of the bearing housing 10 is a supporting surface, and the air inlet groove is disposed on the end surface of the throttle member 20 close to the bearing housing 10.
In the radial gas bearing, the rotating member 30 is disposed in the center holes of the bearing housing 10 and the orifice 20, the orifice 20 is located between the bearing housing 10 and the orifice 20, the inner side surface of the bearing housing 10 is a support surface, and the air intake groove is disposed on the outer circumferential surface of the orifice 20 close to the bearing housing 10.
In some embodiments, as shown in fig. 2, the air intake grooves include a first groove 21 and a second groove 22, the first groove 21 communicating with the air supply hole 12, the first groove 21 being arranged in a circumferential direction about the axis of the bearing housing 10, the second groove 22 communicating with the first groove 21 and extending from the first groove 21 in a direction away from the first groove 21.
By providing the first groove 21 and the second groove 22 extending from the first groove 21 in a direction away from the first groove 21, the gas entering the first groove 21 can be dispersed to the outer periphery of the first groove 21 along with the second groove 22, so that the gas can be uniformly diffused, and the uniformity of the surface pressure of the orifice 20 can be improved.
In some embodiments, the number of the second grooves 22 is plural, and the plural second grooves 22 are radially distributed from the first groove 21. This distribution pattern is advantageous in achieving uniform diffusion from the first grooves 21 in the circumferential direction.
The first groove 21 is an annular groove, and the plurality of second grooves 22 may be respectively disposed at both sides of the first groove 21 and symmetrically distributed with respect to the second grooves 22.
In some embodiments, the number of the second grooves 22 is plural, and the plural second grooves 22 form the star-shaped air inlet structure 23 around the first groove 21.
As shown in fig. 2, the number of the second grooves 22 is 6, 3 second grooves 22 are respectively disposed on both sides of the first groove 21, and the second grooves 22 on both sides are symmetrically arranged with respect to the first groove 21 to form an asterisk shape.
In some embodiments, the number of the air intake structures 23 is plural, and the plural air intake structures 23 are uniformly arranged in the circumferential direction of the first groove 21.
By providing a plurality of air inlet structures 23, an even distribution in the circumferential direction can be achieved, further improving the uniformity of the air pressure.
In some embodiments, the depth of the air inlet groove is 0.05 to 0.1 times the thickness of the orifice 20. The depth setting of air inlet duct can minimize the influence to the structural strength of throttle part 20 under the prerequisite of realizing even atmospheric pressure in this within range, makes throttle part 20 have sufficient structural strength, improves the wholeness ability of bearing.
The porous material can be graphite material, ceramic material or porous copper material.
In some embodiments, the porous material comprises an isostatically pressed graphite material.
The isostatic pressing graphite material has small and uniform pores, and the graphite is a material with stable physical property and chemical property and can not generate physical and chemical reaction with a refrigerant; the graphite material has good temperature resistance, high compressive strength and good lubricating effect, and even if the throttling piece 20 is damaged in the long-term use process, the particles of the throttling piece cannot damage the surface of the rotating part 30, so that the rotating part 30 is effectively protected.
As shown in fig. 3, in some embodiments, the compressor further comprises a wire mesh 40, and the wire mesh 40 is disposed on a side of the bearing housing 10 away from the throttle 20.
The wire mesh 40 can be formed by mutually winding, extruding, hooking and laminating wires with preset diameters, the wire mesh 40 has certain pores, and dry friction generated by relative sliding between the wires can play a role in vibration reduction and buffering, so that the wire mesh has strong energy dissipation capacity. By disposing the wire mesh 40 at the periphery of the bearing housing 10, more uniform damping can be obtained in the axial and circumferential directions of the bearing, and the damping received by the bearing can be improved, thereby improving the damping characteristics of the bearing, reducing the vibration amplitude of the rotating member 30, and improving the stability of the bearing.
The wire mesh 40 may be directly wound around the outer circumference of the bearing housing 10, or may be mounted on the bearing housing 10 in other manners.
As shown in fig. 4 and 5, in some embodiments, a side of the bearing housing 10 away from the choke 20 is provided with a mounting groove 11, and the wire mesh 40 is mounted in the mounting groove 11.
In some embodiments, the mounting slots 11 are arranged in a ring shape along a circumferential direction around the axis of the bearing housing 10; alternatively, the number of the mounting grooves 11 is plural, and the plural mounting grooves 11 are arranged at intervals in the circumferential direction around the axis of the bearing housing 10.
As shown in fig. 4 and 5, the mounting groove 11 is in the shape of a ring, and the wire net 40 is mounted in the ring groove; as shown in fig. 6, a plurality of block-shaped mounting grooves 11 are provided at intervals in the circumferential direction, the mounting grooves 11 are rectangular in shape, and the wire mesh 40 is mounted in the rectangular grooves. In other embodiments, the shape of the mounting groove 11 can also be square, diamond, or circular.
In some embodiments, as shown in fig. 7, the gas supply holes 12 communicate with an external gas supply source, i.e. the gas bearing is a hydrostatic bearing, and the throttle 20 is provided with a wedge-shaped groove 24 on the side remote from the support surface. By arranging the wedge-shaped groove 24, a dynamic pressure effect can be formed on one side of the throttling element 20 close to the rotating part 30, so that the rotating part 30 rotates under the combined action of the static pressure effect and the dynamic pressure effect, and the performance of the bearing is improved.
The clearance between the bottom of the wedge-shaped groove 24 and the rotating member 30 gradually decreases in the rotating direction of the rotating member 30, i.e., the air film clearance between the throttle 20 and the rotating member 30 gradually converges in the rotating direction, the pressure of the air film gradually increases, and the dynamic pressure effect is enhanced.
For a radial bearing, the wedge-shaped groove 24 may be obtained by offsetting the inner diameter circle of the orifice member 20 from the center by a distance tangential to the inner diameter of the orifice member 20. When the rotating member 30 does not rotate, the rotating member 30 floats to a certain height under the static pressure effect, and the rotating member 30 and the bearing reach a complete lubrication state. When the rotating member 30 rotates, the rotating member 30 is displaced from the center of the bearing, and a dynamic pressure effect is generated between the rotor and the inner surface of the orifice 20, which forms a convergent wedge.
In the embodiment shown in fig. 7, the number of the wedge grooves 24 is 3, and the 3 wedge grooves 24 are uniformly arranged in the circumferential direction.
Based on the gas bearing, the invention also provides a compressor, which comprises the gas bearing.
Based on the gas bearing or the compressor, the invention further provides an air conditioning unit, and the air conditioning unit comprises the gas bearing or the compressor.
The positive technical effects of the gas bearings in the above embodiments are also applicable to the compressor and the air conditioning unit, and are not described herein again.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made without departing from the principles of the invention, and these modifications and equivalents are intended to be included within the scope of the claims.
Claims (13)
1. A gas bearing, comprising:
a bearing housing (10) comprising a support surface for supporting a rotating member (30), the bearing housing (10) being provided with an air supply hole (12); and
the throttling piece (20) is arranged on one side, close to the supporting surface, of the bearing shell (10), the throttling piece (20) comprises a porous material, and an air inlet groove communicated with the air supply hole (12) is formed in one side, close to the bearing shell (10), of the throttling piece (20).
2. A gas bearing according to claim 1, characterized in that the inlet channel comprises a first channel (21) and a second channel (22), the first channel (21) being arranged in a circumferential direction around the axis of the bearing housing (10), the second channel (22) communicating with the first channel (21) and extending from the first channel (21) in a direction away from the first channel (21).
3. A gas bearing according to claim 2, wherein the number of second grooves (22) is plural, and the plural second grooves (22) are radially distributed from the first groove (21).
4. Gas bearing according to claim 2, wherein the number of second grooves (22) is multiple, the multiple second grooves (22) forming a star-shaped gas inlet structure (23) around the first groove (21).
5. Gas bearing according to claim 4, wherein the number of gas inlet structures (23) is plural, the plural gas inlet structures (23) being arranged uniformly in the circumferential direction of the first groove (21).
6. A gas bearing according to claim 1, characterized in that the depth of the inlet groove is 0.05-0.1 times the thickness of the throttle element (20).
7. The gas bearing of claim 1, wherein the porous material comprises an isostatically pressed graphite material.
8. Gas bearing according to claim 1, further comprising a wire mesh (40), the wire mesh (40) being arranged on a side of the bearing housing (10) remote from the throttle (20).
9. Gas bearing according to claim 8, wherein the side of the bearing housing (10) remote from the throttle element (20) is provided with a mounting groove (11), the wire mesh (40) being mounted in the mounting groove (11).
10. Gas bearing according to claim 9, wherein the mounting slots (11) are arranged in a ring shape in a circumferential direction around the axis of the bearing housing (10); or the number of the mounting grooves (11) is multiple, and the mounting grooves (11) are arranged at intervals along the circumferential direction around the axis of the bearing shell (10).
11. A gas bearing according to claim 1, characterized in that the gas supply hole (12) communicates with an external gas supply source, and that the throttle element (20) is provided with a wedge-shaped groove (24) on the side remote from the support surface.
12. A compressor, comprising a gas bearing according to any one of claims 1 to 11.
13. An air conditioning assembly comprising a gas bearing according to any one of claims 1 to 11 or a compressor according to claim 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010797767.7A CN111795073A (en) | 2020-08-10 | 2020-08-10 | Gas bearing, compressor and air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010797767.7A CN111795073A (en) | 2020-08-10 | 2020-08-10 | Gas bearing, compressor and air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111795073A true CN111795073A (en) | 2020-10-20 |
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ID=72833868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010797767.7A Pending CN111795073A (en) | 2020-08-10 | 2020-08-10 | Gas bearing, compressor and air conditioning unit |
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| Country | Link |
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| CN (1) | CN111795073A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718890A (en) * | 2022-04-19 | 2022-07-08 | 广东美芝制冷设备有限公司 | Fan and cleaning device |
-
2020
- 2020-08-10 CN CN202010797767.7A patent/CN111795073A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718890A (en) * | 2022-04-19 | 2022-07-08 | 广东美芝制冷设备有限公司 | Fan and cleaning device |
| CN114718890B (en) * | 2022-04-19 | 2023-12-22 | 广东美芝制冷设备有限公司 | Blower and cleaning device |
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