CN113482965A - Air suspension axial bearing and hydrogen energy compressor - Google Patents
Air suspension axial bearing and hydrogen energy compressor Download PDFInfo
- Publication number
- CN113482965A CN113482965A CN202110767706.0A CN202110767706A CN113482965A CN 113482965 A CN113482965 A CN 113482965A CN 202110767706 A CN202110767706 A CN 202110767706A CN 113482965 A CN113482965 A CN 113482965A
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- Prior art keywords
- foil
- bearing
- radial
- fixing plate
- air
- Prior art date
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- 239000000725 suspension Substances 0.000 title claims abstract description 33
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 239000001257 hydrogen Substances 0.000 title claims abstract description 12
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 12
- 239000011888 foil Substances 0.000 claims abstract description 165
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/051—Axial thrust balancing
- F04D29/0513—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Support Of The Bearing (AREA)
Abstract
The invention relates to the field of air suspension axial bearings, in particular to an air suspension axial bearing and a hydrogen energy compressor. The bearing comprises a first fixing plate, a second fixing plate, a supporting device and a positioning pin; the two supporting devices are oppositely arranged and are respectively positioned on the first fixing plate and the second fixing plate which are oppositely arranged; the supporting device comprises a bottom foil, a wave foil and a top foil, wherein the wave foil is axially positioned between the bottom foil and the top foil and fixedly connected with the bottom foil and the top foil; the first fixing plate and the second fixing plate are provided with pin holes, and the bottom foil is provided with a plurality of pin grooves; the positioning pin passes through the pin grooves of the two supporting devices, and two ends of the positioning pin are respectively embedded into the pin holes in the first fixing plate and the second fixing plate. The bearing adopts the structure that the positioning pin is embedded into the pin groove of the bottom foil to limit the assembly of the bottom foil, the wave foil and the top foil, so that the bottom foil is prevented from deforming when the bottom foil is locked by a screw; the gas mold is formed on the surface of the bearing, and the service life of the bearing is prolonged.
Description
Technical Field
The invention relates to the field of air suspension axial bearings, in particular to an air suspension axial bearing and a hydrogen energy compressor.
Background
The air dynamic pressure bearing is one of the sliding bearing forms, the structure and the working principle are similar to those of a liquid sliding bearing, and the difference is that gas (mostly air) is adopted as a lubricating medium, and the air dynamic pressure bearing can be used for high-speed machines, instruments or radioactive devices due to the advantages of extremely low friction resistance, large applicable speed range, wide applicable temperature range, low bearing capacity and the like.
The Chinese utility model patent application (publication No. CN111664188B, published: 20210601) discloses an air dynamic pressure bearing and bearing assembly, which comprises a bearing seat with a circular ring-shaped structure and a supporting assembly arranged on the end surface of the bearing seat, wherein the supporting assembly comprises an arch foil and a top foil, the arch foil is arranged between the top foil and the bearing seat and is used for providing supporting force for the top foil, the top foil comprises a plane part which is arranged in parallel with the end surface of the bearing seat and an inclined plane part which forms an included angle with the end surface of the bearing seat, one end of the plane part far away from the inclined plane part is a fixed end, the fixed end is fixedly connected to the bearing seat, one end of the inclined plane part far away from the plane part is a free end and can slide along the end surface of the bearing seat, the supporting assembly further comprises a limiting structure, the limiting structure is arranged opposite to the bearing seat, for limiting the free end of the top foil in the axial direction of the bearing seat. The invention improves the rigidity and reliability of the bearing.
The prior art has the following defects: the bottom foils of the two supporting devices are respectively locked and fixed to the first fixing plate and the second fixing plate through screws, and the bottom foils are thin and are easy to deform during locking and fixing; therefore, the bearing surface is uneven in the axial direction, the bearing surface is further influenced to form an air mold, and the service life of the bearing is shortened.
Disclosure of Invention
The purpose of the invention is: aiming at the problems, the method adopts a positioning pin to be embedded into a pin groove of the bottom foil so as to limit the assembly of the bottom foil, the wave foil and the top foil, thereby avoiding the deformation of the bottom foil when a screw locks the bottom foil; the air suspension axial bearing and the hydrogen energy compressor are beneficial to forming an air mould on the surface of the bearing and prolonging the service life of the bearing.
In order to achieve the purpose, the invention adopts the following technical scheme:
an air suspension axial bearing comprises a first fixing plate, a second fixing plate, a supporting device and a positioning pin; the two supporting devices are oppositely arranged and are respectively positioned on the first fixing plate and the second fixing plate which are oppositely arranged; the supporting device comprises a bottom foil, a wave foil and a top foil, wherein the wave foil is axially positioned between the bottom foil and the top foil and fixedly connected with the bottom foil and the top foil; the first fixing plate and the second fixing plate are oppositely provided with pin holes, and the bottom foil is provided with a plurality of pin grooves which axially penetrate through and are aligned with the pin holes; the positioning pin passes through the pin grooves of the two supporting devices, and two ends of the positioning pin are respectively embedded into the pin holes in the first fixing plate and the second fixing plate.
Preferably, the pin slot is an open slot.
Preferably, the four pin grooves are arranged in pairs opposite to each other, and the connecting lines of the pin grooves arranged in pairs opposite to each other are perpendicular to each other.
Preferably, the first fixing plate and the second fixing plate are both provided with a limiting groove, and the pin hole penetrates through the limiting groove in the axial direction.
Preferably, the air-bearing is further provided with a plurality of adjusting shims, which are the same shape as the bottom foil and are distributed in an axial stack; the adjusting gaskets are respectively positioned between the outer side of the bottom foil of the supporting device on the first fixing plate and between the outer side of the bottom foil of the supporting device on the second fixing plate and the second fixing plate.
Preferably, the top foil is provided with a PTFE coating on a surface remote from the bump foil.
In addition, the invention also discloses an air suspension axial bearing device which comprises an air suspension axial bearing and a thrust disc, wherein the thrust disc is positioned between the two supporting devices.
In addition, the invention also discloses a hydrogen energy compressor, which comprises a motor barrel, a motor stator, a motor shaft, an air suspension radial bearing, an air suspension axial bearing and an axial thrust disc, wherein the motor stator is arranged on the motor shaft; the motor stator is fixedly embedded in the motor barrel, a motor rotor is arranged on a motor shaft, and the motor rotor is aligned with the motor stator; the two air suspension radial bearings are sleeved at two ends of the motor shaft and used for providing support and limit for the motor shaft in the radial direction; the axial thrust disc is fixedly sleeved on the motor shaft, and the supporting parts of the air suspension axial bearing are positioned on two sides of the axial thrust disc and used for axially limiting the axial thrust disc.
Preferably, the air suspension radial bearing comprises a bearing seat, a radial bump foil, a middle foil, a radial top foil and a locking screw; the bearing seat is provided with a bearing hole, a fixing groove and a screw hole, and the radial bump foil, the middle foil and the radial top foil are all in the shape of an open ring; the radial bump foil is fixedly sleeved on the outer wall of the middle foil, the middle foil is sleeved on the outer wall of the radial top foil, and the outer wall of the radial bump foil is embedded in the bearing hole; the middle foil and the radial top foil are provided with fixing parts protruding out of the outer walls of the middle foil and the radial top foil on one sides of the opening ends of the middle foil and the radial top foil, and the fixing parts of the middle foil and the radial top foil penetrate through the opening ends of the radial wave foils and are attached to each other; the fixing part of the middle foil and the fixing part of the radial top foil are both embedded in the fixing groove, the locking screw is screwed in the screw hole, and the top end of the locking screw is in contact with the bottom surface of the fixing part of the middle foil to press the fixing parts of the middle foil and the radial top foil in the fixing groove.
Preferably, the pressing and fixing direction of the locking screw is the same as the rotating direction of the motor shaft supported by the air suspension radial bearing.
The air suspension axial bearing and the hydrogen energy compressor adopting the technical scheme have the advantages that:
a plurality of positioning pins penetrate through the pin grooves 12 of the two supporting devices 3 to limit the radial directions of the supporting devices, so that the supporting devices are prevented from rotating along with a thrust disc driven by a motor shaft when the motor shaft rotates; when the rotating speed of the motor shaft reaches a certain degree, an air film is formed between the supporting device and the thrust disc, so that the supporting device and the thrust disc are separated, and the suspension effect is achieved; compared with the mode that the bottom foil is locked and fixed by the screws, the positioning pin limiting mode does not provide pressing force on the surface of the bottom foil, and the bottom foil is not pressed and deformed; therefore, the bearing surface is not uneven in the axial direction, so that an air mold is formed between the bearing surface and a motor shaft, and the service life of the bearing is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the supporting device.
Fig. 3 is a schematic structural view of a hydrogen energy source compressor.
Fig. 4 and 5 are schematic structural diagrams of the air suspension radial bearing.
L1-locking screw tightening direction, L2-inner pivot rotation direction.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the drawings.
Example 1
An air suspension axial bearing as shown in fig. 1 and fig. 2 comprises a first fixing plate 1, a second fixing plate 2, a supporting device 3 and a positioning pin 4; the two supporting devices 3 are oppositely arranged and are respectively positioned on the first fixing plate 1 and the second fixing plate 2 which are oppositely arranged; the supporting device 3 comprises a bottom foil 31, a wave foil 32 and a top foil 33, wherein the wave foil 32 is axially positioned between the bottom foil 31 and the top foil 33 and fixedly connected with the bottom foil 31 and the top foil 33; the first fixing plate 1 and the second fixing plate 2 are oppositely provided with pin holes 11, and the bottom foil 31 is provided with a plurality of pin grooves 12 which axially penetrate and are aligned with the pin holes 11; the positioning pins 4 pass through the pin grooves 12 of the two supporting devices 3, and both ends thereof are inserted into the pin holes 11 of the first fixing plate 1 and the second fixing plate 2, respectively. In this way, the plurality of positioning pins 4 penetrate through the pin grooves 12 of the two supporting devices 3 to limit the radial directions of the supporting devices, so that the supporting devices 3 are prevented from rotating along with the thrust disc driven by the motor shaft when the motor shaft rotates; when the rotating speed of the motor shaft reaches a certain degree, an air film is formed between the supporting device 3 and the thrust disc, so that the supporting device and the thrust disc are separated, and the suspension effect is achieved; compared with the mode that the bottom foil 31 is locked and fixed by the screws, the positioning pin 4 does not provide pressing force on the surface of the bottom foil 31 in a limiting mode, and cannot be pressed and deformed; therefore, the bearing surface is not uneven in the axial direction, so that an air mold is formed between the bearing surface and a motor shaft, and the service life of the bearing is prolonged.
The pin slot 12 is an open slot. The four pin grooves 12 are arranged oppositely in pairs, and the connecting lines of the pin grooves 12 arranged oppositely in pairs are perpendicular to each other, so that the supporting device 3 is limited in the vertical radial direction and the left and right radial directions.
The first fixing plate 1 and the second fixing plate 2 are both provided with a limiting groove 13, and the pin hole 11 penetrates through the limiting groove 13 in the axial direction. The air suspension axial bearing is also provided with a plurality of adjusting shims 5, and the adjusting shims 5 are the same as the bottom foil 31 in shape and are distributed in an axial stacking manner; the plurality of spacers 5 are respectively located between the outside of the bottom foil 31 of the supporting device 3 on the first fixing plate 1 and the first fixing plate 1, and between the outside of the bottom foil 31 of the supporting device 3 on the second fixing plate 2 and the second fixing plate 2. The clearance between the thrust disc and the top foil 33 of the air suspension axial bearing and the clearance between the impeller and the first fixing plate 1 can be adjusted by adjusting the number of the gaskets 5, so that the impeller efficiency is improved. Wherein the impeller is fixedly connected on a motor shaft and used for blowing air.
The surface of the top foil 33, which is far away from the corrugated foil 32, is provided with a PTFE coating, the surface of the thrust disc is provided with a PVD coating, and the friction coefficient between the two is low, and the temperature resistance is high; thereby the life of air suspension axial bearing has been guaranteed.
An air bearing device comprises an air bearing and a thrust disk 6, the thrust disk 6 being located between two support means 3.
A hydrogen energy source compressor as shown in fig. 3, comprising a motor cylinder 61, a motor stator 62, a motor shaft 620, an air suspension radial bearing 63, an air suspension axial bearing 64 and an axial thrust disc 65; the motor stator 62 is fixedly embedded in the motor barrel 61, and the motor shaft 620 is provided with a motor rotor which is aligned with the motor stator 62; the two air suspension radial bearings 63 are sleeved at two ends of the motor shaft 620 and used for providing support and limit for the motor shaft in the radial direction; the axial thrust disc 65 is fixedly sleeved on the motor shaft 620, and the supporting parts of the air suspension axial bearing 64 are positioned on two sides of the axial thrust disc 65 and used for axially limiting the axial thrust disc 65.
As shown in fig. 4 and 5, the air-bearing 63 includes a bearing seat 71, a radial bump foil 72, a middle foil 73, a radial top foil 74 and a locking screw 75; the bearing seat 71 is provided with a bearing hole 711, a fixing groove 712 and a screw hole 713, and the radial bump foil 72, the middle foil 73 and the radial top foil 74 are all in the shape of an open circular ring; the radial wave foil 72 is fixedly sleeved on the outer wall of the middle foil 73, the middle foil 73 is sleeved on the outer wall of the radial top foil 74, and the outer wall of the radial wave foil 72 is embedded in the bearing hole 711; the middle foil 73 and the radial top foil 74 are provided with fixing parts 741 protruding from the outer walls of the middle foil 73 and the radial top foil 74 on the open ends of the middle foil and the radial top foil, respectively, and the fixing parts 741 of the middle foil 73 and the radial top foil 74 penetrate through the open ends of the radial corrugated foil 72 and are attached to each other; the fixing portion of the middle foil 73 and the fixing portion 741 of the radial top foil 74 are fitted into the fixing groove 712, the locking screw 75 is screwed into the screw hole 713, and the tip end thereof contacts the bottom surface of the fixing portion 741 of the middle foil 73 to press the fixing portions 741 of the middle foil 73 and the radial top foil 74 into the fixing groove 712. In this way, the combination of the radial bump foil 72, the middle foil 73 and the radial top foil 74 is pressed in the fixing groove 712 through the top end of the locking screw 75, when the radial bump foil 72, the middle foil 73 or the radial top foil 74 is damaged and needs to be replaced, the combination of the radial bump foil 72, the middle foil 73 and the radial top foil 74 only needs to be disassembled by removing the locking screw 75, and the bearing seat 71 does not need to be replaced; therefore, the number of parts needing to be replaced is reduced, and the maintenance cost of the bearing is reduced.
The tightening direction of the locking screw 75 is the same as the rotation direction of the motor shaft 620 supported by the air bearing. So that the locking screw 75 is not subjected to the opposite force provided by the motor shaft 620 when pressing the combination of the radial bump foil 72, the middle foil 73 and the radial top foil 74, which is beneficial to maintaining the fastening effect of the locking screw 75.
Claims (10)
1. An air suspension axial bearing is characterized in that the bearing comprises a first fixing plate (1), a second fixing plate (2), a supporting device (3) and a positioning pin (4); the two supporting devices (3) are oppositely arranged and are respectively positioned on the first fixing plate (1) and the second fixing plate (2) which are oppositely arranged; the supporting device (3) comprises a bottom foil (31), a wave foil (32) and a top foil (33), wherein the wave foil (32) is axially positioned between the bottom foil (31) and the top foil (33) and fixedly connected with the bottom foil and the top foil; the first fixing plate (1) and the second fixing plate (2) are oppositely provided with pin holes (11), and the bottom foil (31) is provided with a plurality of pin grooves (12) which axially penetrate through and are aligned with the pin holes (11); the positioning pin (4) passes through the pin grooves (12) of the two supporting devices (3), and two ends of the positioning pin are respectively embedded into the pin holes (11) on the first fixing plate (1) and the second fixing plate (2).
2. An air bearing according to claim 1, characterized in that the pin grooves (12) are open grooves.
3. An air bearing according to claim 1, characterized in that the four pin grooves (12) are arranged opposite to each other two by two and that the connecting lines of the pin grooves (12) arranged opposite to each other two by two are mutually perpendicular.
4. An air bearing according to claim 1, characterized in that the first fixing plate (1) and the second fixing plate (2) are provided with a limiting groove (13), the pin hole (11) extending through the limiting groove (13) in the axial direction.
5. An air bearing according to claim 1, characterized in that the air bearing is further provided with a plurality of shim plates (5), the shim plates (5) being of the same shape as the base foil (31) and being axially stacked; the adjusting gaskets (5) are respectively positioned between the outer side of the bottom foil (31) of the supporting device (3) on the first fixing plate (1) and between the outer side of the bottom foil (31) of the supporting device (3) on the second fixing plate (2) and the second fixing plate (2).
6. An air bearing according to claim 1, characterized in that the top foil (33) is provided with a PTFE coating on the surface remote from the bump foil (32).
7. An air bearing arrangement, characterized by an air bearing and a thrust disc (6), the air bearing being according to any of claims 1-6; the thrust disc (6) is located between the two support devices (3).
8. A hydrogen energy compressor is characterized by comprising a motor barrel (61), a motor stator (62), a motor shaft (620), an air suspension radial bearing (63), an air suspension axial bearing (64) and an axial thrust disc (65); the air-bearing radial bearing (63) is as claimed in claim 1; the motor stator (62) is fixedly embedded in the motor barrel (61), the motor shaft (620) is provided with a motor rotor, and the motor rotor is aligned with the motor stator (62); the two air suspension radial bearings (63) are sleeved at two ends of the motor shaft (620) and used for providing support and limit for the motor shaft in the radial direction; the axial thrust disc (65) is fixedly sleeved on the motor shaft (620), and the supporting parts of the air suspension axial bearings (64) are positioned on two sides of the axial thrust disc (65) and used for axially limiting the axial thrust disc (65).
9. A hydrogen energy compressor according to claim 8, characterized in that the air-floating radial bearing (63) comprises a bearing seat (71), a radial bump foil (72), a middle foil (73), a radial top foil (74) and a locking screw (75); the bearing seat (71) is provided with a bearing hole (711), a fixing groove (712) and a screw hole (713), and the radial bump foil (72), the middle foil (73) and the radial top foil (74) are all in open annular shapes; the radial wave foil (72) is fixedly sleeved on the outer wall of the middle foil (73), the middle foil (73) is sleeved on the outer wall of the radial top foil (74), and the outer wall of the radial wave foil (72) is embedded in the bearing hole (711); the middle foil (73) and the radial top foil (74) are provided with fixing parts (741) protruding out of the outer walls of the middle foil and the radial top foil on the sides of the opening ends of the middle foil and the radial top foil, and the fixing parts (741) of the middle foil (73) and the radial top foil (74) penetrate through the opening ends of the radial wave foil (72) and are attached to each other; the fixing part of the middle foil (73) and the fixing part (741) of the radial top foil (74) are both embedded in the fixing groove (712), the locking screw (75) is screwed in the screw hole (713), and the top end of the locking screw is in contact with the bottom surface of the fixing part (741) of the middle foil (73) to press the fixing parts (741) of the middle foil (73) and the radial top foil (74) in the fixing groove (712).
10. A hydrogen energy source compressor according to claim 9, characterized in that the tightening fixing direction of the locking screw (75) is the same as the rotation direction of the inner rotary shaft supported by the air-floating radial bearing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110767706.0A CN113482965B (en) | 2021-07-07 | 2021-07-07 | Air suspension axial bearing and hydrogen energy compressor |
| PCT/CN2021/127221 WO2023279586A1 (en) | 2021-07-07 | 2021-10-29 | Air suspension axial bearing and hydrogen energy compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110767706.0A CN113482965B (en) | 2021-07-07 | 2021-07-07 | Air suspension axial bearing and hydrogen energy compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113482965A true CN113482965A (en) | 2021-10-08 |
| CN113482965B CN113482965B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110767706.0A Active CN113482965B (en) | 2021-07-07 | 2021-07-07 | Air suspension axial bearing and hydrogen energy compressor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113482965B (en) |
| WO (1) | WO2023279586A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023279589A1 (en) * | 2021-07-07 | 2023-01-12 | 鑫磊压缩机股份有限公司 | Air suspension radial bearing and hydrogen energy compressor |
| WO2023279586A1 (en) * | 2021-07-07 | 2023-01-12 | 鑫磊压缩机股份有限公司 | Air suspension axial bearing and hydrogen energy compressor |
| CN115853798A (en) * | 2022-11-26 | 2023-03-28 | 黑龙江云造科技有限公司 | Centrifugal air compressor for fuel cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113489185A (en) * | 2021-07-07 | 2021-10-08 | 鑫磊压缩机股份有限公司 | Motor rotor, magnetic steel assembling tool and method and hydrogen energy compressor |
| CN113482965B (en) * | 2021-07-07 | 2024-05-03 | 鑫磊压缩机股份有限公司 | Air suspension axial bearing and hydrogen energy compressor |
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2021
- 2021-07-07 CN CN202110767706.0A patent/CN113482965B/en active Active
- 2021-10-29 WO PCT/CN2021/127221 patent/WO2023279586A1/en active Application Filing
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| CN112943789A (en) * | 2021-04-08 | 2021-06-11 | 烟台东德实业有限公司 | Radial air dynamic pressure bearing with adjustable slots |
| CN113483020A (en) * | 2021-07-07 | 2021-10-08 | 鑫磊压缩机股份有限公司 | Air suspension radial bearing and hydrogen energy compressor |
| CN216044582U (en) * | 2021-07-07 | 2022-03-15 | 鑫磊压缩机股份有限公司 | Air suspension axial bearing, device and hydrogen energy compressor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023279589A1 (en) * | 2021-07-07 | 2023-01-12 | 鑫磊压缩机股份有限公司 | Air suspension radial bearing and hydrogen energy compressor |
| WO2023279586A1 (en) * | 2021-07-07 | 2023-01-12 | 鑫磊压缩机股份有限公司 | Air suspension axial bearing and hydrogen energy compressor |
| CN115853798A (en) * | 2022-11-26 | 2023-03-28 | 黑龙江云造科技有限公司 | Centrifugal air compressor for fuel cell |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023279586A1 (en) | 2023-01-12 |
| CN113482965B (en) | 2024-05-03 |
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