CN113483020A - Air suspension radial bearing and hydrogen energy compressor - Google Patents
Air suspension radial bearing and hydrogen energy compressor Download PDFInfo
- Publication number
- CN113483020A CN113483020A CN202110767677.8A CN202110767677A CN113483020A CN 113483020 A CN113483020 A CN 113483020A CN 202110767677 A CN202110767677 A CN 202110767677A CN 113483020 A CN113483020 A CN 113483020A
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- foil
- bearing
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- wave
- air
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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
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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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/047—Bearings hydrostatic; hydrodynamic
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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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
- F16C17/024—Sliding-contact bearings for exclusively rotary movement for radial load only with flexible leaves to create hydrodynamic wedge, e.g. radial foil 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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
- F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
- F16C17/243—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety related to temperature and heat, e.g. for preventing overheating
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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
- F16C2360/00—Engines or pumps
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Support Of The Bearing (AREA)
Abstract
The invention relates to the field of air suspension bearings, in particular to an air suspension radial bearing and a hydrogen energy compressor. The bearing comprises a bearing seat, a bump foil, a middle foil, a top foil and a locking screw; the bearing block is provided with a bearing hole, a fixing groove and a screw hole; the wave foil is fixedly sleeved on the outer wall of the middle foil, the middle foil is sleeved on the outer wall of the top foil, and the outer wall of the wave foil is embedded in the bearing hole; the middle foil and the top foil are provided with fixing parts protruding out of the outer walls of the middle foil and the top foil on one sides of the opening ends of the middle foil and the top foil, and the fixing parts of the middle foil and the top foil penetrate through the opening ends of the wave foils and are attached to each other; the fixing part of the middle foil and the fixing part of the top foil are both embedded in the fixing grooves, the locking screws are screwed in the screw holes, and the top ends of the locking screws are in contact with the bottom surfaces of the fixing parts of the middle foil to press the fixing parts of the middle foil and the top foil in the fixing grooves. The bearing reduces the number of replacement parts and reduces the maintenance cost.
Description
Technical Field
The invention relates to the field of air suspension bearings, in particular to an air suspension radial 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. CN212672222U, published: 20210309) discloses a foil bearing, comprising a sleeve, a bump foil and a top foil; one end of the top foil is connected with the inner side wall of the bearing sleeve, the other end of the top foil extends along the inner side wall of the bearing sleeve, and two ends of the top foil are butted to form an annular structure; the wave foil is made of soft glue, the wave foil is located between the bearing sleeve and the top foil, and one side of the wave foil, which is close to the bearing sleeve, is attached to the inner side wall of the bearing sleeve. The bump foil in the foil bearing is made by the flexible glue, the precision is easy to control, and the adjustment of the parameters of the bump foil is more convenient, so that the production and the manufacture of the bump foil are simpler, in addition, the damping coefficient of the bump foil made by the flexible glue is larger, the impact resistance of the foil bearing is better, the foil bearing is more stable in operation, and the applicable range of the foil bearing is wider.
The prior art has the following defects: the wave foil is welded on the bearing seat in a welding mode, so that the wave foil, the middle foil and the top foil are fixed, and when the wave foil, the middle foil or the top foil breaks down, the bearing seat needs to be replaced at the same time; thereby increasing the number of replacement parts and improving the maintenance cost.
Disclosure of Invention
The purpose of the invention is: aiming at the problems, the method adopts a locking screw to fix the combination of the wave foil, the middle foil and the top foil on the bearing seat, and when the wave foil, the middle foil or the top foil has a fault, the combination of the wave foil, the middle foil and the top foil only needs to be disassembled without replacing the bearing seat; therefore, the number of replacement parts is reduced, and the maintenance cost is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
an air-bearing radial bearing, the bearing comprises a bearing seat, a bump foil, a middle foil, a top foil and a locking screw; the bearing seat is provided with a bearing hole, a fixing groove and a screw hole, and the corrugated foil, the middle foil and the top foil are all in open annular shapes; the wave foil is fixedly sleeved on the outer wall of the middle foil, the middle foil is sleeved on the outer wall of the top foil, and the outer wall of the wave foil is embedded in the bearing hole; the middle foil and the top foil are provided with fixing parts protruding out of the outer walls of the middle foil and the top foil on one sides of the opening ends of the middle foil and the top foil, and the fixing parts of the middle foil and the top foil penetrate through the opening ends of the wave foils and are attached to each other; the fixing part of the middle foil and the fixing part of the top foil are both embedded in the fixing grooves, the locking screws are screwed in the screw holes, and the top ends of the locking screws are in contact with the bottom surfaces of the fixing parts of the middle foil to press the fixing parts of the middle foil and the top foil in the fixing grooves.
Preferably, the pressing and fixing direction of the locking screw is the same as the rotating direction of the inner rotary shaft supported by the air suspension radial bearing.
Preferably, the bearing seat end surface is further fixedly provided with a plurality of temperature sensors, and the temperature sensors are used for detecting the surface temperature of the air suspension radial bearing.
Preferably, the wave foil is provided with a plurality of connecting portions, and the plurality of connecting portions connect the plurality of stages of wave foils to form a single integral wave foil.
Preferably, the inner surface of the top foil is provided with a polytetrafluoroethylene coating.
Preferably, the corrugated foil and the middle foil are fixedly connected by laser welding.
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 a thrust disc; 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 thrust disc is fixedly sleeved on the motor shaft, and the supporting parts of the air suspension axial bearings are positioned on two sides of the thrust disc and used for axially limiting the thrust disc.
Preferably, the 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, an axial wave foil and an axial top foil, wherein the axial wave foil is axially positioned between the bottom foil and the axial top foil and is fixedly connected with the bottom foil and the axial 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. The four pin grooves are arranged oppositely in pairs, and the connecting lines of the pin grooves arranged oppositely in pairs are mutually vertical.
The air suspension radial bearing and the hydrogen energy compressor adopting the technical scheme have the advantages that:
the combined parts of the wave foil, the middle foil and the top foil are tightly pressed in the fixed groove through the top end of the locking screw, when the wave foil, the middle foil or the top foil is damaged and needs to be replaced, the combined parts of the wave foil, the middle foil and the top foil only need to be disassembled by disassembling the locking screw, and the bearing seat 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.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure of the bump foil, the middle foil and the top foil.
Fig. 3 is a schematic structural view of a bump foil.
Fig. 4 is a schematic structural view of a hydrogen energy source compressor.
Fig. 5 is a schematic structural view of an air-bearing.
Fig. 6 is a schematic structural view of the supporting device.
10-inner rotating shaft, L1-locking screw fastening direction, L2-inner rotating shaft rotating direction and 713-adjusting shim.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the drawings.
Example 1
An air suspension radial bearing as shown in fig. 1 and 2 comprises a bearing seat 1, a bump foil 2, a middle foil 3, a top foil 4 and a locking screw 5; the bearing seat 1 is provided with a bearing hole 11, a fixing groove 12 and a screw hole 13, and the corrugated foil 2, the middle foil 3 and the top foil 4 are all in open annular shapes; the corrugated foil 2 is fixedly sleeved on the outer wall of the middle foil 3, the middle foil 3 is sleeved on the outer wall of the top foil 4, and the outer wall of the corrugated foil 2 is embedded in the bearing hole 11; the middle foil 3 and the top foil 4 are provided with fixing parts 41 protruding from the outer walls of the middle foil 3 and the top foil 4 at the open ends of the two foils, and the fixing parts 41 of the middle foil 3 and the top foil 4 penetrate through the open end of the wave foil 2 and are attached to each other; the fixing portion of the middle foil 3 and the fixing portion 41 of the top foil 4 are fitted into the fixing groove 12, and the locking screw 5 is screwed into the screw hole 13, and the tip end thereof contacts the bottom surface of the fixing portion 41 of the middle foil 3 to press the fixing portions 41 of the middle foil 3 and the top foil 4 into the fixing groove 12. In this way, the assembly of the wave foil 2, the middle foil 3 and the top foil 4 is pressed in the fixing groove 12 through the top end of the locking screw 5, when the wave foil 2, the middle foil 3 or the top foil 4 is damaged and needs to be replaced, the assembly of the wave foil 2, the middle foil 3 and the top foil 4 only needs to be disassembled by detaching the locking screw 5, and the bearing seat 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 pressing and fixing direction of the locking screw 5 is the same as the rotating direction of the inner rotating shaft supported by the air suspension radial bearing. So that the locking screw 5 is not subjected to the opposite direction acting force provided by the internal rotation shaft when pressing the assembly of the bump foil 2, the middle foil 3 and the top foil 4, which is beneficial to maintaining the fastening effect of the locking screw 5.
The end face of the bearing seat 1 is also fixedly provided with a plurality of temperature sensors 14, and the temperature sensors 14 are used for detecting the surface temperature of the air suspension radial bearing. When the temperature of the bearing surface rises, the temperature sensor 14 can detect the temperature, and the emergency stop is carried out, so that the loss is reduced.
The corrugated foil 2 is provided with a plurality of connecting portions that connect the multi-stage corrugated foil 2 into the single-piece integral corrugated foil 2. Therefore, the condition that the multi-section wave foils 2 are required to be welded to form the single integral wave foil 2 is avoided, the welding process is simplified, and the qualification rate of parts is improved.
The inner surface of the top foil 4 is provided with the polytetrafluoroethylene coating, so that the high-temperature resistance characteristic of the bearing is improved, and the friction coefficient of the surface of the top foil 4 is reduced. The corrugated foil 2 and the middle foil 3 are fixedly connected by laser welding.
A hydrogen energy source compressor as shown in fig. 4, which includes a motor cylinder 61, a motor stator 62, a motor shaft 620, an air-floating radial bearing 63, an air-floating axial bearing 64, and a thrust disk 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 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 thrust disc 65 and used for axially limiting the thrust disc 65.
As shown in fig. 5 and 6, the air bearing 64 includes a first fixing plate 71, a second fixing plate 72, a supporting device 73 and a positioning pin 74; the two supporting devices 73 are oppositely arranged and are respectively positioned on the first fixing plate 71 and the second fixing plate 72 which are oppositely arranged; the supporting device 73 comprises a bottom foil 731, an axial wave foil 732 and an axial top foil 733, wherein the axial wave foil 732 is positioned between the bottom foil 731 and the axial top foil 733 in the axial direction and fixedly connected with the three; the first fixing plate 71 and the second fixing plate 72 are oppositely provided with pin holes 711, and the bottom foil 731 is provided with a plurality of pin grooves 712 which axially penetrate through and are aligned with the pin holes 711; the positioning pins 74 pass through pin grooves 712 of the two supporting devices 73, and both ends thereof are fitted into pin holes 711 of the first and second fixing plates 71 and 72, respectively. In this way, the plurality of positioning pins 74 penetrate through the pin slots 712 of the two supporting devices 73 to limit the radial directions of the supporting devices 73, so that when the motor shaft 620 rotates, the supporting devices 73 are prevented from rotating along with the thrust disc 65 driven by the motor shaft 620; when the rotating speed of the motor shaft 620 reaches a certain degree, an air film is formed between the supporting device 73 and the thrust disc 65, so that the supporting device is separated from the thrust disc to achieve the effect of suspension; compared with the mode that the bottom foil 731 is fixed by locking a screw, the positioning pin 74 does not provide pressing force on the surface of the bottom foil 731 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 the motor shaft 620, and the service life of the bearing is prolonged.
The pin slot 712 is an open slot. The four pin grooves 712 are arranged in pairs in opposite directions, and the connecting lines of the pin grooves 712 arranged in pairs in opposite directions are perpendicular to each other, so that the support device 3 is limited in the vertical radial direction and the horizontal radial direction.
Claims (10)
1. An air suspension radial bearing is characterized by comprising a bearing seat (1), a corrugated foil (2), a middle foil (3), a top foil (4) and a locking screw (5); the bearing seat (1) is provided with a bearing hole (11), a fixing groove (12) and a screw hole (13), and the corrugated foil (2), the middle foil (3) and the top foil (4) are all in open annular shapes; the corrugated foil (2) is fixedly sleeved on the outer wall of the middle foil (3), the middle foil (3) is sleeved on the outer wall of the top foil (4), and the outer wall of the corrugated foil (2) is embedded in the bearing hole (11); the middle foil (3) and the top foil (4) are provided with fixing parts (41) protruding out of the outer walls of the middle foil and the top foil on the sides of the opening ends of the middle foil and the top foil, and the fixing parts (41) of the middle foil (3) and the top foil (4) penetrate through the opening ends of the wave foils (2) and are attached to each other; the fixing part of the middle foil (3) and the fixing part (41) of the top foil (4) are both embedded in the fixing groove (12), the locking screw (5) is screwed in the screw hole (13), and the top end of the locking screw is in contact with the bottom surface of the fixing part (41) of the middle foil (3) to press the fixing parts (41) of the middle foil (3) and the top foil (4) in the fixing groove (12).
2. An aerosuspension radial bearing according to claim 1, wherein the direction of the compression fixation of the locking screw (5) is the same as the direction of rotation of the inner rotating shaft supported by the aerosuspension radial bearing.
3. An air suspension radial bearing according to claim 1, characterized in that a plurality of temperature sensors (14) are fixedly arranged on the end surface of the bearing seat (1), and the temperature sensors (14) are used for detecting the surface temperature of the air suspension radial bearing.
4. An air-bearing radial bearing according to claim 1, characterized in that the wave foil (2) is provided with a plurality of connecting portions connecting the multi-segment wave foil (2) into a single-piece integral wave foil (2).
5. An air bearing according to claim 1, characterized in that the inner surface of the top foil (4) is provided with a polytetrafluoroethylene coating.
6. An air bearing according to claim 1, characterized in that the bump foil (2) and the mid foil (3) are fixedly connected by means of laser welding.
7. A hydrogen energy compressor, characterized in that the compressor comprises 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 a 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 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 thrust disc (65) and used for axially limiting the thrust disc (65).
8. A hydrogen energy compressor according to claim 7, characterized in that the air-floating axial bearing (64) comprises a first fixing plate (71), a second fixing plate (72), a support means (73) and a positioning pin (74); the two supporting devices (73) are oppositely arranged and are respectively positioned on the first fixing plate (71) and the second fixing plate (72) which are oppositely arranged; the supporting device (73) comprises a bottom foil (731), an axial wave foil (732) and an axial top foil (733), wherein the axial wave foil (732) is axially positioned between the bottom foil (731) and the axial top foil (733) and fixedly connected with the bottom foil (731) and the axial top foil; the first fixing plate (71) and the second fixing plate (72) are oppositely provided with pin holes (711), and the bottom foil (731) is provided with a plurality of pin grooves (712) which axially penetrate through and are aligned with the pin holes (711); the positioning pin (74) passes through the pin grooves (712) of the two supporting devices (73), and both ends thereof are respectively inserted into the pin holes (711) of the first fixing plate (71) and the second fixing plate (72).
9. The hydrogen energy source compressor according to claim 8, characterized in that the pin grooves (712) are open grooves.
10. The hydrogen energy source compressor according to claim 8, wherein the four pin grooves (712) are arranged opposite to each other in pairs, and the connecting lines of the pin grooves (712) arranged opposite to each other in pairs are perpendicular to each other.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110767677.8A CN113483020A (en) | 2021-07-07 | 2021-07-07 | Air suspension radial bearing and hydrogen energy compressor |
| PCT/CN2021/127226 WO2023279589A1 (en) | 2021-07-07 | 2021-10-29 | Air suspension radial bearing and hydrogen energy compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110767677.8A CN113483020A (en) | 2021-07-07 | 2021-07-07 | Air suspension radial bearing and hydrogen energy compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113483020A true CN113483020A (en) | 2021-10-08 |
Family
ID=77941905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110767677.8A Pending CN113483020A (en) | 2021-07-07 | 2021-07-07 | Air suspension radial bearing and hydrogen energy compressor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113483020A (en) |
| WO (1) | WO2023279589A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482965A (en) * | 2021-07-07 | 2021-10-08 | 鑫磊压缩机股份有限公司 | Air suspension axial bearing and hydrogen energy compressor |
| CN115045909A (en) * | 2022-06-16 | 2022-09-13 | 浙江飞旋科技有限公司 | Foil dynamic pressure bearing and shafting of anti impact load |
| 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 |
| CN115614375A (en) * | 2022-12-15 | 2023-01-17 | 天津飞旋科技股份有限公司 | Foil air bearing, fuel cell air compressor and fault diagnosis method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7553086B2 (en) * | 2004-07-20 | 2009-06-30 | Honeywell International Inc. | Hydrodynamic journal bearing |
| KR101531926B1 (en) * | 2011-08-01 | 2015-06-26 | 가부시키가이샤 아이에이치아이 | Radial foil bearing |
| CN103335019B (en) * | 2013-06-14 | 2015-08-05 | 西安交通大学 | A kind of bolt is fixed and is adjusted the elastic foil gas bearing of pretension |
| CN111927876A (en) * | 2020-08-25 | 2020-11-13 | 上海优社动力科技有限公司 | Thrust air foil bearing |
| CN112814935A (en) * | 2021-02-05 | 2021-05-18 | 陈亮 | High-speed air suspension compressor for fuel cell, fuel cell system and vehicle |
| 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 |
| 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 |
| 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 |
-
2021
- 2021-07-07 CN CN202110767677.8A patent/CN113483020A/en active Pending
- 2021-10-29 WO PCT/CN2021/127226 patent/WO2023279589A1/en unknown
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482965A (en) * | 2021-07-07 | 2021-10-08 | 鑫磊压缩机股份有限公司 | Air suspension axial bearing and hydrogen energy compressor |
| 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 |
| 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 |
| CN115045909A (en) * | 2022-06-16 | 2022-09-13 | 浙江飞旋科技有限公司 | Foil dynamic pressure bearing and shafting of anti impact load |
| CN115045909B (en) * | 2022-06-16 | 2023-09-15 | 浙江飞旋科技有限公司 | Impact load-resistant foil hydrodynamic bearing and shafting |
| CN115614375A (en) * | 2022-12-15 | 2023-01-17 | 天津飞旋科技股份有限公司 | Foil air bearing, fuel cell air compressor and fault diagnosis method |
| CN115614375B (en) * | 2022-12-15 | 2023-02-28 | 天津飞旋科技股份有限公司 | Foil air bearing, fuel cell air compressor and fault diagnosis method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023279589A1 (en) | 2023-01-12 |
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