CN115435013B - Air bearing for hydrogen fuel cell air compressor - Google Patents
Air bearing for hydrogen fuel cell air compressor Download PDFInfo
- Publication number
- CN115435013B CN115435013B CN202211056196.7A CN202211056196A CN115435013B CN 115435013 B CN115435013 B CN 115435013B CN 202211056196 A CN202211056196 A CN 202211056196A CN 115435013 B CN115435013 B CN 115435013B
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- air
- shell
- air compressor
- fuel cell
- pressure
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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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention relates to the field of air bearings, in particular to an air bearing for a hydrogen fuel cell air compressor. In order to solve the technical problems that when the air pressure provided by the air compressor is insufficient and the pressure of the conveyed air is unstable, the power shaft is easy to shake severely, a large amount of air leaks out, and a part of high-pressure air generated by the operation of the air compressor is wasted. The invention provides an air bearing for a hydrogen fuel cell air compressor, which comprises a pressure relief assembly, a plug ring and the like; the pressure release assembly is connected with the plug ring. According to the invention, the high-pressure gas pushes the flip assembly to drive the magnet to be close to the ball, the magnet sucks the ball away from the power shaft, so that friction force generated during rotation of the power shaft is reduced, the high-pressure gas provides effective support for the power shaft, when the high-pressure gas in the air bearing continuously rises, the pressure release assembly is matched with the plug ring, pressure release work is performed according to the pressure increase intensity of the high-pressure gas, and the leakage degree of the gas is strictly controlled.
Description
Technical Field
The invention relates to the field of air bearings, in particular to an air bearing for a hydrogen fuel cell air compressor.
Background
An air compressor for a hydrogen fuel cell uses an air bearing as a rotary supporting part of a power shaft, such as the air bearing for an air compressor of a fuel cell system described in patent CN112727927B, uses high-pressure gas generated during the operation of the air compressor instead of a gas supply source of the air compressor, forms a ring of supporting barrier composed of gas on the outer surface of the supporting power shaft on the basis of reducing the overall weight of the air compressor, reduces the heat generated by friction during the high-speed rotation of the power shaft, thereby controlling the heat generated by the hydrogen fuel cell, however, the air bearing cannot be effectively supported by the air supporting barrier when the air pressure supplied by the air compressor is insufficient at the initial stage and the final stage of rotation of the rotating shaft and when the pressure of the gas supplied by the air compressor is unstable during the operation of the air compressor, so that the power shaft is severely dithered, the stable operation of the power shaft is affected, and a large amount of gas leaks when the air compressor continuously supplies the high-pressure gas to the air bearing, so that a part of the high-pressure gas generated during the operation of the air compressor is wasted.
Disclosure of Invention
In order to overcome the defects that when the air pressure provided by the air compressor is insufficient and the pressure of the conveyed air is unstable, the power shaft is easy to shake severely, and a large amount of air is discharged, so that a part of high-pressure air generated by the operation of the air compressor is wasted, the invention provides an air bearing for the hydrogen fuel cell air compressor.
The technical proposal is as follows: an air bearing for a hydrogen fuel cell air compressor comprises a pressure relief assembly, an inner support assembly, a flip assembly, a shell, an air inlet pipe, a plug ring, balls, a magnet and a power shaft; an inner plate is arranged in the middle of the shell; an inner cavity is arranged between the outer shell and the inner plate; a hollow groove is formed in the shell; a plurality of through hole structures for communicating the inner cavity with the empty slot are arranged around the inner plate, and the distance between the through hole structures arranged in the upward area of the inner plate is larger; the lower side of the inner plate is fixedly connected with a flow dividing block; a baffle plate is fixedly connected between the upper sides of the outer shell and the inner plate; the lower side of the shell is communicated with an air inlet pipe; the front side and the rear side of the shell are respectively connected with a plug ring through a group of pressure relief assemblies; the inner wall of the surrounding shell is respectively connected with a ball through a group of inner supporting components; all the balls form an annular space and are internally supported with a power shaft; a plurality of through groove structures which are matched with the balls are formed around the inner plate; a magnet is fixedly connected to the outer surface of the surrounding inner plate through a group of flip components respectively.
As a further preferred embodiment, a ring of groove structures is provided around the outer surface of the power shaft.
As a further preferred solution, a number of tooth structures are provided around the groove structure of the outer surface of the power shaft.
As a further preferable scheme, a plurality of tooth groove structures which are matched with the convex tooth structures are respectively arranged around the outer surface of each ball, and the balls are meshed with the convex tooth structures through the tooth groove structures.
As a further preferable scheme, a plurality of air leakage groove structures are arranged around the outer surface of the plug ring.
As a further preferable aspect, the front side and the rear side of the hollow groove are both provided in a bucket-like structure that is contracted toward the direction approaching the power shaft.
As a further preferable scheme, the pressure relief assembly comprises a fixed block, a limiting rod and a first spring; a plurality of fixing blocks are fixedly connected around the outer surface of the plug ring; the outer end of each fixed block is fixedly connected with a limiting rod; each limiting rod is inserted into the shell; a first spring is fixedly connected between each limiting rod and the shell.
As a further preferred scheme, the inner support assembly comprises a sliding rod, a second spring and a shaft seat; the front side and the rear side of the shell are respectively connected with a sliding rod in a sliding way; a second spring is fixedly connected between the two sliding rods and the shell respectively; a shaft seat is fixedly connected between the two sliding rods; the ball is connected with the shaft seat through the rotation of the rotating shaft.
As a further preferred aspect, the flip cover assembly includes a sleeve, a torsion spring, and a cover plate; the outer surface of the inner plate is rotationally connected with a shaft sleeve through a rotating shaft; a torsion spring is fixedly connected between the two ends of the shaft sleeve and the inner plate respectively, and the torsion spring is sleeved on the outer surface of the shaft sleeve; the cover plate is fixedly connected to the outer surface of the shaft sleeve.
As a further preferred solution, the outer surface of the cover plate is provided with a plurality of channel structures.
The invention has the following advantages: according to the air bearing for the hydrogen fuel cell air compressor, the front side and the rear side of the shell are respectively connected with the plug ring through the pressure release assemblies, the inner wall of the surrounding shell is respectively connected with the balls through the support assemblies, the power shaft is supported and clamped by the balls, the surrounding inner plate is provided with the through groove structures which are matched with the balls, the outer surface of the surrounding inner plate is fixedly connected with the magnet through the flip assemblies, when the air bearing is filled with high-pressure gas, the high-pressure gas pushes the flip assemblies to drive the magnet to approach the balls, the magnet attracts the balls away from the power shaft, friction force generated during rotation of the power shaft is reduced, meanwhile, the high-pressure gas forms a layer of supporting barrier on the outer surface of the power shaft, so that the power shaft is effectively supported and stably rotates at a high speed, when the high-pressure gas in the air bearing continuously rises, the pressure release assemblies cooperate with the plug ring to release pressure according to the pressure increase strength of the high-pressure gas, the processing steps are realized, when the air pressure provided by the air compressor is insufficient and the gas pressure supplied by the air compressor is not sufficient and the air pressure is not high, the high-pressure gas is not supplied by the flip assemblies, the air bearing is close to the balls, the magnet is attracted away from the power shaft, friction force generated during rotation is reduced, the high-pressure gas is strictly generated, the high pressure gas is stably and the high pressure is stably controlled, and the high pressure is not high, and the high when the high pressure gas is severely compressed and the high stability is not influenced.
Drawings
FIG. 1 is a schematic perspective view of the present application;
FIG. 2 is a first cross-sectional view of the present application;
FIG. 3 is a second cross-sectional view of the present application;
FIG. 4 is a partial front view of the present application;
FIG. 5 is a schematic perspective view of an inner plate of the present application;
FIG. 6 is a third cross-sectional view of the present application;
fig. 7 is a schematic perspective view of a pressure relief assembly according to the present application;
FIG. 8 is a schematic perspective view of a ring of the present application;
FIG. 9 is a schematic perspective view of an inner support assembly of the present application;
FIG. 10 is a schematic perspective view of a power shaft of the present application;
FIG. 11 is a schematic perspective view of the inner support assembly and flip assembly of the present application;
FIG. 12 is a schematic perspective view of a flip assembly of the present application;
fig. 13 is a schematic view of a magnetic body of the present application.
Reference numerals: 1-shell, 11-inner plate, 12-split block, 13-baffle, 14-inner cavity, 15-empty slot, 111-through hole, 112-through slot, 2-air inlet pipe, 3-plug ring, 31-air release slot, 4-ball, 41-tooth socket, 5-magnet, 6-power shaft, 61-groove, 62-convex tooth, 101-fixed block, 102-limit rod, 103-first spring, 201-sliding rod, 202-second spring, 203-axle seat, 301-axle sleeve, 302-torsion spring, 303-cover plate and 3031-guide slot.
Detailed Description
The following describes the technical scheme with reference to specific embodiments, and it should be noted that: terms indicating orientations, such as up, down, left, right, etc., are used herein only with respect to the position of the illustrated structure in the corresponding drawings. The parts themselves are numbered herein, for example: first, second, etc. are used solely to distinguish between the described objects and do not have any sequential or technical meaning. And the application is said to be as follows: connection, coupling, unless specifically stated otherwise, includes both direct and indirect connection (coupling).
Examples
An air bearing for a hydrogen fuel cell air compressor, as shown in fig. 1-13, comprises a pressure relief component, an inner support component, a flip component, a shell 1, an air inlet pipe 2, a plug ring 3, balls 4, a magnet 5 and a power shaft 6; an inner plate 11 is arranged in the middle of the shell 1; an inner cavity 14 is arranged between the outer shell 1 and the inner plate 11; a hollow groove 15 is formed in the shell 1; the front side and the rear side of the empty groove 15 are respectively provided with a bucket-shaped structure which is contracted towards the direction close to the power shaft 6; a plurality of through hole 111 structures are arranged around the inner plate 11, and the spacing between the through hole 111 structures arranged in the upward region of the inner plate 11 is larger; the lower side of the inner plate 11 is connected with a shunt block 12 through bolts; a partition plate 13 is connected between the shell 1 and the upper side of the inner plate 11 through bolts; the lower side of the shell 1 is communicated with an air inlet pipe 2; the front side and the rear side of the shell 1 are respectively connected with a group of pressure relief assemblies; two pressure release components are respectively connected with a plug ring 3; a plurality of air leakage grooves 31 are formed around the outer surface of the plug ring 3; the two plug rings 3 are respectively inserted into the front side and the rear side of the shell 1; a plurality of groups of inner supporting components are arranged around the inner wall of the shell 1; each group of inner supporting components is connected with a ball 4; all the balls 4 form an annular space and are internally supported with a power shaft 6; a plurality of through grooves 112 which are matched with the balls 4 are formed around the inner plate 11; a plurality of groups of flip cover components are arranged around the outer surface of the inner plate 11; each group of flip components is fixedly connected with a magnet 5.
As shown in fig. 9 and 10, a circle of grooves 61 are formed around the outer surface of the power shaft 6; a plurality of convex teeth 62 are arranged around the groove 61 structure of the outer surface of the power shaft 6; a plurality of tooth groove 41 structures are respectively formed around the outer surface of each ball 4, and the balls 4 are meshed with the tooth 62 structures through the tooth groove 41 structures.
As shown in fig. 7 and 8, the pressure relief assembly includes a fixed block 101, a limit lever 102 and a first spring 103; a plurality of fixing blocks 101 are connected around the outer surface of the plug ring 3 through bolts; the outer end of each fixed block 101 is welded with a limiting rod 102; each limiting rod 102 is inserted into the shell 1; a first spring 103 is fixedly connected between each limiting rod 102 and the shell 1.
As shown in fig. 2 and 9, the inner support assembly includes a sliding rod 201, a second spring 202 and an axle seat 203; a slide bar 201 is slidably connected to the front and rear sides of the housing 1; a second spring 202 is fixedly connected between the two sliding rods 201 and the shell 1 respectively; an axle seat 203 is welded between the two sliding rods 201; the ball 4 is connected with the shaft seat 203 through the rotation of the rotating shaft.
As shown in fig. 11-13, the flip assembly includes a sleeve 301, a torsion spring 302, and a cover 303; the outer surface of the inner plate 11 is rotationally connected with a shaft sleeve 301 through a rotating shaft; a torsion spring 302 is fixedly connected between the two ends of the shaft sleeve 301 and the inner plate 11 respectively, and the torsion spring 302 is sleeved on the outer surface of the shaft sleeve 301; the outer surface of the shaft sleeve 301 is welded with a cover plate 303; the outer surface of the cover 303 is provided with a plurality of diversion trenches 3031.
The shell 1 of the air bearing for the hydrogen fuel cell air compressor is arranged on a power shaft 6 of the air compressor, the power shaft 6 is supported and clamped by all balls 4, an air outlet pipeline branch of the air compressor is externally connected with an air inlet pipe 2, high-pressure air is generated in the air compressor during rotation of the power shaft 6, the air enters an inner cavity 14 from the air inlet pipe 2 through the air outlet pipeline branch of the air compressor, the inner space of the inner cavity 14 is divided into left side and right side by a partition plate 13, the air is respectively filled in the whole inner cavity 14 from the left side and the right side in the inner cavity 14 along a split block 12, the air in the inner cavity 14 enters an empty groove 15 from a through hole 111 and covers the outer surface of the power shaft 6, and before the air pressure in the empty groove 15 can not provide effective support for the power shaft 6, the balls 4 provide solid supporting force for the power shaft 6, so that large shaking is avoided when the power shaft 6 rotates, and the air in the empty groove 15 leaks out from a gap between the shell 1 and the power shaft 6.
With the increase of the rotation speed of the power shaft 6, the pressure of the high-pressure gas generated in the air compressor increases sharply, the pressure of the gas entering the empty groove 15 increases accordingly, when the pressure of the gas entering the empty groove 15 is enough to provide effective support for the power shaft 6, the high-pressure gas entering the inner cavity 14 from the gas inlet pipe 2 pushes each cover plate 303 along the flowing direction of the high-pressure gas, the shaft sleeve 301 is driven to overturn, the shaft sleeve 301 drives the torsion spring 302 connected with the shaft sleeve 301 to generate torque force, the shaft sleeve 301 is tightly attached to the outer surface of the inner plate 11, meanwhile, the magnet 5 in the shaft sleeve 301 applies magnetic attraction to the balls 4 through the through grooves 112, the balls 4 and the shaft seat 203 connected with the balls are driven to move away from the power shaft 6, meanwhile, the sliding rod 201 drives the second spring 202 to compress, the power shaft 6 loses the supporting force of the balls 4, the high-pressure gas covered on the outer surface of the power shaft 6 provides effective support for the high-pressure gas, and heat generated by friction during the rotation of the power shaft 6 is reduced.
The high-pressure gas entering the inner cavity 14 from the gas inlet pipe 2 flows along the guide groove 3031 on the outer surface of the cover plate 303, the resistance generated when the high-pressure gas passes through the cover plate 303 is reduced, when the high-pressure gas in the air bearing continuously rises, the high-pressure gas in the empty groove 15 pushes the piston rings 3 on the front side and the rear side, the fixed block 101 and the limiting rod 102 are driven to move outwards, the limiting rod 102 drives the first spring 103 to stretch, the empty groove 15 is communicated with the outside air through the air release groove 31, the outward leakage amount of the high-pressure gas in the empty groove 15 is improved, when the high-pressure gas in the air bearing is increased suddenly, the high-pressure gas in the empty groove 15 directly pushes the piston rings 3 away from the shell 1, the high-pressure gas in the air bearing is prevented from being leaked timely, various parts in the air bearing are prevented from being damaged due to the fact that the gas pressure in the air bearing is too high, and the pressure release work is carried out by the pressure release assembly in cooperation with the piston rings 3 according to the air pressure increase strength of the high-pressure gas.
When the air pressure generated in the air compressor is unstable, and when the power shaft 6 is decelerated, the air pressure in the air bearing is insufficient to provide support for the power shaft 6, the air in the inner cavity 14 is insufficient to push the cover plate 303 to be tightly attached to the outer surface of the inner plate 11, meanwhile, the torsion spring 302 is used for driving the shaft sleeve 301 to turn over and reset, the shaft sleeve 301 drives the cover plate 303 and the magnet 5 connected with the cover plate to be far away from the balls 4, and when the balls 4 lose the magnetic attraction of the magnet 5, the compressed second spring 202 drives the shaft seat 203 and the sliding rod 201 to reversely move and reset, so that the shaft seat 203 drives the balls 4 to provide physical support for the power shaft 6 in time, severe shaking of the power shaft 6 is avoided, and effective physical support is provided for the power shaft in time when the air pressure provided by the air compressor is insufficient and the delivered air pressure is unstable.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (10)
1. An air bearing for a hydrogen fuel cell air compressor comprises a shell (1) and an air inlet pipe (2); the lower side of the shell (1) is communicated with an air inlet pipe (2); the method is characterized in that: the device also comprises a pressure release component, an inner support component, a flip component, a plug ring (3), balls (4), a magnet (5) and a power shaft (6); an inner plate (11) is arranged in the middle of the shell (1); an inner cavity (14) is arranged between the outer shell (1) and the inner plate (11); a hollow groove (15) is formed in the shell (1); a plurality of through holes (111) which are used for communicating the inner cavity (14) with the empty slot (15) are arranged around the inner plate (11), and the spacing between the through holes (111) arranged in the upward area of the inner plate (11) is larger; a shunt block (12) is fixedly connected to the lower side of the inner plate (11); a baffle plate (13) is fixedly connected between the upper sides of the shell (1) and the inner plate (11); the front side and the rear side of the shell (1) are respectively connected with a plug ring (3) through a group of pressure relief assemblies; the inner wall of the surrounding shell (1) is respectively connected with a ball (4) through a group of inner supporting components; all the balls (4) form an annular space and are internally supported with a power shaft (6); a plurality of through grooves (112) which are matched with the balls (4) are formed around the inner plate (11); a magnet (5) is fixedly connected to the outer surface of the surrounding inner plate (11) through a group of flip components respectively.
2. An air bearing for a hydrogen fuel cell air compressor according to claim 1, characterized in that: a circle of groove (61) structure is arranged around the outer surface of the power shaft (6).
3. An air bearing for a hydrogen fuel cell air compressor according to claim 2, characterized in that: a plurality of convex tooth (62) structures are arranged around the groove (61) structure of the outer surface of the power shaft (6).
4. An air bearing for a hydrogen fuel cell air compressor according to claim 3, characterized in that: a plurality of tooth grooves (41) which are matched with the structures of the convex teeth (62) are respectively arranged around the outer surface of each ball (4), and the balls (4) are meshed with the structures of the convex teeth (62) through the structures of the tooth grooves (41).
5. An air bearing for a hydrogen fuel cell air compressor according to claim 1, characterized in that: a plurality of air leakage grooves (31) are arranged around the outer surface of the plug ring (3).
6. An air bearing for a hydrogen fuel cell air compressor according to claim 1, characterized in that: the front side and the rear side of the empty groove (15) are respectively provided with a bucket-shaped structure which is contracted towards the direction close to the power shaft (6).
7. An air bearing for a hydrogen fuel cell air compressor according to claim 1, characterized in that: the pressure relief assembly comprises a fixed block (101), a limiting rod (102) and a first spring (103); a plurality of fixing blocks (101) are fixedly connected around the outer surface of the plug ring (3); the outer end of each fixed block (101) is fixedly connected with a limiting rod (102); each limiting rod (102) is inserted into the shell (1); a first spring (103) is fixedly connected between each limiting rod (102) and the shell (1).
8. An air bearing for a hydrogen fuel cell air compressor according to claim 1, characterized in that: the inner support assembly comprises a sliding rod (201), a second spring (202) and a shaft seat (203); the front side and the rear side of the shell (1) are respectively connected with a sliding rod (201) in a sliding way; a second spring (202) is fixedly connected between the two sliding rods (201) and the shell (1) respectively; an axle seat (203) is fixedly connected between the two sliding rods (201); the ball (4) is rotationally connected with the shaft seat (203) through a rotating shaft.
9. An air bearing for a hydrogen fuel cell air compressor according to claim 1, characterized in that: the flip component comprises a shaft sleeve (301), a torsion spring (302) and a cover plate (303); the outer surface of the inner plate (11) is rotationally connected with a shaft sleeve (301) through a rotating shaft; a torsion spring (302) is fixedly connected between the two ends of the shaft sleeve (301) and the inner plate (11), and the torsion spring (302) is sleeved on the outer surface of the shaft sleeve (301); the outer surface of the shaft sleeve (301) is fixedly connected with a cover plate (303).
10. An air bearing for a hydrogen fuel cell air compressor according to claim 9, characterized in that: the outer surface of the cover plate (303) is provided with a plurality of diversion trenches (3031) structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211056196.7A CN115435013B (en) | 2022-08-31 | 2022-08-31 | Air bearing for hydrogen fuel cell air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211056196.7A CN115435013B (en) | 2022-08-31 | 2022-08-31 | Air bearing for hydrogen fuel cell air compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115435013A CN115435013A (en) | 2022-12-06 |
| CN115435013B true CN115435013B (en) | 2023-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211056196.7A Active CN115435013B (en) | 2022-08-31 | 2022-08-31 | Air bearing for hydrogen fuel cell air compressor |
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| CN (1) | CN115435013B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20001236U1 (en) * | 2000-01-25 | 2000-04-27 | Hsieh Hsin Mao | fan |
| CN103836070B (en) * | 2014-03-18 | 2016-07-13 | 华中科技大学 | A kind of active gas suspension device |
| WO2018030839A1 (en) * | 2016-08-12 | 2018-02-15 | 한양대학교에리카산학협력단 | Air bearing and rotating body system |
| DE102018213697A1 (en) * | 2018-08-15 | 2020-02-20 | Robert Bosch Gmbh | Air bearing, storage unit and compressor |
| DE102018213699A1 (en) * | 2018-08-15 | 2020-02-20 | Robert Bosch Gmbh | Air bearing, storage unit and compressor |
| CN210113396U (en) * | 2019-04-30 | 2020-02-25 | 康跃科技股份有限公司 | Air compressor oil-gas sealing device for fuel cell |
| CN113494437A (en) * | 2020-04-03 | 2021-10-12 | 苏州宝时得电动工具有限公司 | Air supply machine |
| CN111720441B (en) * | 2020-06-23 | 2021-09-17 | 朱振武 | Air bearing |
| CN215058915U (en) * | 2021-04-23 | 2021-12-07 | 蜂巢蔚领动力科技(江苏)有限公司 | Air compressor air bearing air inlet structure for external supply type hydrogen fuel cell |
| CN216812192U (en) * | 2021-11-27 | 2022-06-24 | 山西特博优新能源科技有限公司 | Centrifugal air compressor based on hydrogen fuel cell engine |
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- 2022-08-31 CN CN202211056196.7A patent/CN115435013B/en active Active
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| CN115435013A (en) | 2022-12-06 |
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