CN106968972A - A kind of gas suspension bearing air blower and gas suspension bearing boosting method - Google Patents
A kind of gas suspension bearing air blower and gas suspension bearing boosting method Download PDFInfo
- Publication number
- CN106968972A CN106968972A CN201710207493.XA CN201710207493A CN106968972A CN 106968972 A CN106968972 A CN 106968972A CN 201710207493 A CN201710207493 A CN 201710207493A CN 106968972 A CN106968972 A CN 106968972A
- Authority
- CN
- China
- Prior art keywords
- bearing
- gas suspension
- thrust
- support
- impeller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000000994 depressogenic effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 7
- 239000010687 lubricating oil Substances 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- 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
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
-
- 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
- F04D29/057—Bearings hydrostatic; hydrodynamic
Abstract
The present invention relates to a kind of gas suspension bearing air blower and gas suspension bearing boosting method, it is sequentially installed with accessory impeller kuppe from left to right including volute body, radial axle bearing, stator, the support of bearing, shading ring, separator and kuppe, accessory impeller is connected by key with main shaft, rotor is provided with main shaft, accessory impeller is locked by bolt to accessory impeller, journal bearing support is separately mounted in radial axle bearing and the support of bearing with journal bearing inner ring, shading ring and thrust bearing Moving plate are installed between the support of bearing and separator, thrust bearing Moving plate is arranged on main shaft by central through hole, impeller is arranged on main shaft by central through hole, the impeller other end is locked by nut.The present invention replaces common rolling bearing or sliding bearing using gas suspension bearing, worked using pressed gas film supports main shaft, the present invention is prevented effectively from pollution of the equipment to medium and working environment without lubricating oil, meanwhile, the life of bearing improves the reliability of complete machine.
Description
Technical field
Increase the present invention relates to mechanical equipment technical field, more particularly to a kind of gas suspension bearing air blower and gas suspension bearing
Pressure method.
Background technology
Existing air blower is typically to use rolling bearing or sliding bearing supports main shaft, and the radial load and axle of balancing main shaft
Xiang Li, it is ensured that main shaft and impeller normal work.The rotating speed of usual rolling bearing or sliding bearing is determined by lubricating condition, is generally
Thousands of revs/min, when rotating speed is too high, the friction pair oil film of bearing will be destroyed, in turn result in bearing failure.
A kind of gas suspension bearing air blower of the present invention, common rolling bearing or sliding axle are replaced using gas suspension bearing
Hold, radial load and axial force when balancing main shaft works are worked using pressed gas film supports main shaft.Due to the resistance of gas suspension bearing
Power is small, and bearing moving-coil is not directly contacted with Jing Quan, not the heat phenomenon because of friction, therefore, and gas suspension bearing can ensure master
Rotating speed improves to ten to 200,000 revs/min.
The content of the invention
Instant invention overcomes above-mentioned the deficiencies in the prior art, there is provided a kind of gas suspension bearing air blower and gas suspension bearing
Boosting method.A kind of gas suspension bearing air blower of the present invention, common rolling bearing or sliding axle are replaced using gas suspension bearing
Hold, radial load and axial force when balancing main shaft works are worked using pressed gas film supports main shaft.
Inventive technique scheme：
A kind of gas suspension bearing air blower, including kuppe, volute body, impeller, separator, shading ring, thrust bearing are dynamic
The quiet disk of disk, thrust bearing, the support of bearing, journal bearing support, journal bearing inner ring, main shaft, radial axle bearing, accessory impeller, pair
Impeller kuppe, stator, rotor, helicla flute, U-shaped fixed seat, tack fixed seat, air-vent, pad, air inlet duct, positioning I,
Positioning II and air slot；
The volute body be sequentially installed with from left to right accessory impeller kuppe, radial axle bearing, stator, the support of bearing, every
From ring, separator and kuppe；
The accessory impeller is provided between the accessory impeller kuppe and the radial axle bearing, the accessory impeller passes through key
It is connected with main shaft, the accessory impeller is locked by clamping screw to accessory impeller, rotor is provided with the main shaft；
The journal bearing support is separately mounted to the radial axle bearing and the support of bearing with the journal bearing inner ring
On, air inlet duct is provided with the journal bearing support, and the journal bearing support is positioned by positioning I, the footpath
Air slot is provided with to bearing inner race, and the journal bearing inner ring is positioned by positioning II；
Depressed part is provided with the support of bearing, depressed part is provided with the quiet disk of thrust bearing, the quiet disk of thrust bearing
Including U-shaped fixed seat, tack fixed seat, air-vent and pad；The U-shaped fixed seat is with the tack fixed seat with the thrust
Alternately angularly put centered on the axle center of the quiet disk of bearing, the U-shaped fixed seat in the tack fixed seat with being provided with
Stomata；
It is provided between the support of bearing and separator on shading ring and thrust bearing Moving plate, the thrust bearing Moving plate
Central through hole is provided with, the thrust bearing Moving plate is arranged on main shaft by central through hole, and on the thrust bearing Moving plate
Provided with helicla flute；
Impeller is installed, described impeller one end fits with the shading ring between the kuppe and the separator,
The shading ring is arranged on main shaft with the impeller by central through hole, and the impeller other end is locked by nut.
Further：Air slot is fishbone shape.
Further：The separator internal diameter is more than the external diameter of thrust bearing Moving plate.
Further：The U-shaped fixed seat and the tack fixed seat at least three, and adjacent U-shaped fixed seat is with putting down
Pad is installed between head fixed seat.
Further：Air guide well width on the journal bearing inner ring is 1-5mm, and depth is 0.2-1mm.
Further：Air inlet duct broadband on journal bearing support is 1-5mm.
Further：Helicla flute cross-sectional width on thrust bearing Moving plate is 1-4mm, and depth is 0.2-2mm.
Further：Vent diameter on the quiet disk of thrust bearing is 2-10mm.
The present invention has the advantages that for prior art：A kind of gas suspension bearing blower speed of the present invention is improved
Afterwards, the flow of blower fan is directly proportional to rotation speed of fan square, the less air blower of geometry is obtained larger flow；Meanwhile, this hair
A kind of bright gas suspension bearing air blower is without lubricating oil, it is to avoid pollution of the equipment to medium and working environment, this is in food, pharmacy
It is particularly important with the environment such as space flight；A kind of gas suspension bearing air blower of the present invention, common rolling is replaced using gas suspension bearing
Bearing or sliding bearing, are greatly improved the life-span of bearing, thus improve the reliability of complete machine.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of journal bearing support of the present invention；
Fig. 3 is positioning I of the present invention front view；
Fig. 4 is the front view of radial axle bearing of the present invention；
Fig. 5 is the left view of radial axle bearing of the present invention；
Fig. 6 is the structural representation of journal bearing inner ring of the present invention；
Fig. 7 is positioning II of the present invention front view；
Fig. 8 is the front view of thrust bearing Moving plate of the present invention；
Fig. 9 is the left view of thrust bearing Moving plate of the present invention；
Figure 10 is the front view of the quiet disk of thrust bearing of the present invention；
Figure 11 is the left view of the quiet disk of thrust bearing of the present invention；
1- kuppes in figure；2- volute bodies；3- impellers；4- separators；5- shading rings；6- thrust bearing Moving plates；7- thrusts
The quiet disk of bearing；The 8- supports of bearing；9- journal bearing supports；10- journal bearing inner rings；11- main shafts；12- radial axle bearings；13-
Accessory impeller；14- accessory impeller kuppes；15- stators；16- rotors；17- helicla flutes；18-U type fixed seats；19- tack fixed seats；
20- air-vents；21- pads；22- air inlet ducts；23- positionings I；24- positionings II；25- air slots.
Embodiment
Below with reference to accompanying drawing, the present invention is described in detail.
In Fig. 1 into Figure 11, a kind of gas suspension bearing air blower, including kuppe 1, volute body 2, impeller 3, separator 4,
The quiet disk 7 of shading ring 5, thrust bearing Moving plate 6, thrust bearing, the support of bearing 8, journal bearing support 9, journal bearing inner ring 10, master
Axle 11, radial axle bearing 12, accessory impeller 13, accessory impeller kuppe 14, stator 15, rotor 16, helicla flute 17, U-shaped fixed seat 18,
Tack fixed seat 19, air-vent 20, pad 21, air inlet duct 22, positioning I23, positioning II24 and air slot 25；
The volute body 2 is sequentially installed with accessory impeller kuppe 14, radial axle bearing 12, stator 15, bearing from left to right
Support 8, shading ring 5, separator 4 and kuppe 1；
The accessory impeller 13, the accessory impeller are provided between the accessory impeller kuppe 14 and the radial axle bearing 12
13 are connected by key with main shaft 11, and the accessory impeller 13 is locked by clamping screw to accessory impeller 13, in the main shaft 11
It is provided with rotor 16；
The journal bearing support 9 is separately mounted to the radial axle bearing 12 and bearing with the journal bearing inner ring 10
On support 8, air inlet duct 22 is provided with the journal bearing support 9, and the journal bearing support 9 is carried out by positioning I23
Air slot 25 is provided with positioning, the journal bearing inner ring 10, and the journal bearing inner ring 10 is carried out by positioning II24
Positioning；
Depressed part is provided with the support of bearing 8, depressed part is provided with the quiet disk 7 of thrust bearing, and the thrust bearing is quiet
Disk 7 includes U-shaped fixed seat 18, tack fixed seat 19, air-vent 20 and pad 21；Described one end of U-shaped fixed seat 18 is provided with U-shaped
Hole, the U-shaped fixed seat 18 is replaced angularly with the tack fixed seat 19 centered on the axle center of the quiet disk 7 of the thrust bearing
Put, the U-shaped fixed seat 18 in the tack fixed seat 19 with being provided with air-vent 20；
Shading ring 5 and thrust bearing Moving plate 6 are installed, the thrust bearing is moved between the support of bearing 8 and separator 4
Central through hole is provided with disk 6, the thrust bearing Moving plate 6 is arranged on main shaft 11 by central through hole, and the thrust axis
Bearing plate 6 is provided with helicla flute 17；
Impeller 3, described one end of impeller 3 and the phase of shading ring 5 are installed between the kuppe 1 and the separator 4
Laminating, the shading ring 5 is arranged on main shaft 11 with the impeller 3 by central through hole, and the other end of impeller 3 passes through nut
Locked.
Specifically, air slot is fishbone shape.
Specifically, the internal diameter of separator 4 is more than the external diameter of thrust bearing Moving plate 6.
Specifically, the U-shaped fixed seat 18 and the tack fixed seat 19 at least three, and adjacent U-shaped fixed seat 18
Pad 21 is installed between tack fixed seat 19.
Specifically, the width of air slot 25 on the journal bearing inner ring 10 is 1-5mm, and depth is 0.2-1mm.
Specifically, the broadband of air inlet duct 22 on journal bearing support 9 is 1-5mm.
Specifically, the cross-sectional width of helicla flute 17 on thrust bearing Moving plate 6 is 1-4mm, and depth is 0.2-2mm.
Specifically, a diameter of 2-10mm of air-vent 20 on the quiet disk 7 of thrust bearing.
A, thrust bearing boosting method：
Thrust bearing is made up of thrust bearing Moving plate 6 and the quiet disk 7 of thrust bearing, has spiral on the thrust bearing Moving plate 6
Groove 17；The quiet disk 7 of thrust bearing includes U-shaped fixed seat 18, tack fixed seat 19, air-vent 20 and pad 21；Thrust bearing
During work, helicla flute 17 on thrust bearing Moving plate 6 drives dielectric gas to produce inside flowing, make thrust bearing Moving plate 6 with
Partial pressure rise between the quiet disk 7 of thrust bearing, and then improve gas suspension thrust Carrying Capacity of Thrust Bearing；B, journal bearing
Boosting method：
Radial direction gas suspension bearing is made up of the support of bearing 8, journal bearing support 9 and journal bearing inner ring 10；The footpath
Air slot 24 is provided with to bearing inner race 10, when rotor 16 rotates at a high speed in journal bearing inner ring 10, due to air slot 24
Guide effect, raise the local medium air pressure between rotor 16 and journal bearing inner ring 10, so as to improve radial direction gas suspension
The bearing capacity of bearing.
After stator switches on power, rotor starts rotary work, when accessory impeller 13 works, and certain pressure air dielectric is through stream
Road enters the quiet disk 7 of thrust bearing, promotes thrust bearing Moving plate 6, the axial force of impeller 3 is balanced, while accessory impeller 13 also produces axle
To the axial force of dynamic balance impeller 3；
Main shaft 11 high speed rotate when, be pressurized by fishbone shape air slot 25, with journal bearing inner ring 10 between shape
Into air film, the radial load of balancing main shaft 11 makes main shaft 11 not produce mechanical friction with journal bearing inner ring 10 when high speed rotates.
The present invention replaces common rolling bearing or sliding bearing using gas suspension bearing, utilizes pressed gas film supports main shaft
Work；After blower speed is improved, the less air blower of geometry is set to obtain larger flow；A kind of gas suspension bearing drum of the present invention
Blower fan is prevented effectively from pollution of the equipment to medium and working environment without lubricating oil, meanwhile, the present invention makes the life-span of bearing very big
Improve, thus improve the reliability of complete machine.
Claims (8)
1. a kind of gas suspension bearing air blower, it is characterised in that including kuppe (1), volute body (2), impeller (3), separator
(4), shading ring (5), thrust bearing Moving plate (6), the quiet disk of thrust bearing (7), the support of bearing (8), journal bearing support (9), footpath
To bearing inner race (10), main shaft (11), radial axle bearing (12), accessory impeller (13), accessory impeller kuppe (14), stator (15),
Rotor (16), helicla flute (17), U-shaped fixed seat (18), tack fixed seat (19), air-vent (20), pad (21), air inlet duct
(22), positioning I (23), positioning II (24) and air slot (25)；
The volute body (2) be sequentially installed with from left to right accessory impeller kuppe (14), radial axle bearing (12), stator (15),
The support of bearing (8), shading ring (5), separator (4) and kuppe (1)；
The accessory impeller (13), the accessory lobes are provided between the accessory impeller kuppe (14) and the radial axle bearing (12)
Wheel (13) is connected by key with main shaft (11), and the accessory impeller (13) is locked by clamping screw to accessory impeller (13), institute
State in main shaft (11) and be provided with rotor (16)；
The journal bearing support (9) is separately mounted to the radial axle bearing (12) and axle with the journal bearing inner ring (10)
Hold on support (8), air inlet duct (22) is provided with the journal bearing support (9), and the journal bearing support (9) passes through positioning
Shelves I (23) is positioned, and air slot (25) is provided with the journal bearing inner ring (10), and the journal bearing inner ring (10) is logical
Positioning II (24) is crossed to be positioned；
Depressed part is provided with the support of bearing (8), depressed part is provided with the quiet disk of thrust bearing (7), and the thrust bearing is quiet
Disk (7) includes U-shaped fixed seat (18), tack fixed seat (19), air-vent (20) and pad (21)；The U-shaped fixed seat (18)
Replaced with the tack fixed seat (19) centered on the axle center of the quiet disk of the thrust bearing (7) and angularly put, it is described U-shaped solid
Reservation (18) on the tack fixed seat (19) with being provided with air-vent (20)；
Shading ring (5) and thrust bearing Moving plate (6), the thrust axis are installed between the support of bearing (8) and separator (4)
Central through hole is provided with bearing plate (6), the thrust bearing Moving plate (6) is arranged on main shaft (11) by central through hole, and
The thrust bearing Moving plate (6) is provided with helicla flute (17)；
Impeller (3), described impeller (3) one end and the shading ring are installed between the kuppe (1) and the separator (4)
(5) fit, the shading ring (5) is arranged on main shaft (11) with the impeller (3) by central through hole, the impeller (3)
The other end is locked by nut.
2. a kind of gas suspension bearing air blower according to claim 1, it is characterised in that separator (4) internal diameter is more than
The external diameter of thrust bearing Moving plate (6).
3. a kind of gas suspension bearing air blower according to claim 2, it is characterised in that the U-shaped fixed seat (18) and institute
Tack fixed seat (19) at least three is stated, and pad is installed between adjacent U-shaped fixed seat (18) and tack fixed seat (19)
(21)。
4. a kind of gas suspension bearing air blower according to claim 3, it is characterised in that on the journal bearing inner ring (10)
Air slot (25) width be 1-5mm, depth is 0.2-1mm.
5. a kind of gas suspension bearing air blower according to claim 4, it is characterised in that entering on journal bearing support (9)
Air drain (22) broadband is 1-5mm.
6. a kind of gas suspension bearing air blower according to claim 5, it is characterised in that the spiral shell on thrust bearing Moving plate (6)
Spin slot (17) cross-sectional width is 1-4mm, and depth is 0.2-2mm.
7. a kind of gas suspension bearing air blower according to claim 6, it is characterised in that saturating on the quiet disk of thrust bearing (7)
Stomata (20) a diameter of 2-10mm.
8. the gas suspension bearing boosting method based on a kind of gas suspension bearing air blower described in claim 1, it is characterised in that
Comprise the following steps：
A, thrust bearing boosting method：
Thrust bearing is made up of thrust bearing Moving plate (6) and the quiet disk of thrust bearing (7), has spiral shell on the thrust bearing Moving plate (6)
Spin slot (17)；The quiet disk of thrust bearing (7) includes U-shaped fixed seat (18), tack fixed seat (19), air-vent (20) and pad
(21)；When thrust bearing works, the helicla flute (17) on thrust bearing Moving plate (6) drives dielectric gas to produce inside flowing,
The partial pressure between thrust bearing Moving plate (6) and the quiet disk of thrust bearing (7) is raised, and then improves gas suspension thrust thrust axis
Hold bearing capacity；
B, journal bearing boosting method：
Radial direction gas suspension bearing is made up of the support of bearing (8), journal bearing support (9) and journal bearing inner ring (10)；It is described
Journal bearing inner ring (10) is provided with air slot (24), when rotor (16) rotates at a high speed in journal bearing inner ring (10), by
Guide effect in air slot (24), raises the local medium air pressure between rotor (16) and journal bearing inner ring (10), from
And improve the bearing capacity of radial direction gas suspension bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710207493.XA CN106968972B (en) | 2017-03-31 | 2017-03-31 | Air suspension bearing blower and air suspension bearing pressurization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710207493.XA CN106968972B (en) | 2017-03-31 | 2017-03-31 | Air suspension bearing blower and air suspension bearing pressurization method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106968972A true CN106968972A (en) | 2017-07-21 |
| CN106968972B CN106968972B (en) | 2023-04-18 |
Family
ID=59336410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710207493.XA Active CN106968972B (en) | 2017-03-31 | 2017-03-31 | Air suspension bearing blower and air suspension bearing pressurization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106968972B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605765A (en) * | 2017-10-19 | 2018-01-19 | 潍坊富源增压器有限公司 | Centrifugal blower |
| CN111486107A (en) * | 2019-01-29 | 2020-08-04 | 青岛海尔智能技术研发有限公司 | Centrifugal compressor and heat pump system |
| WO2022105209A1 (en) * | 2020-11-18 | 2022-05-27 | 至玥腾风科技集团有限公司 | Air-cooled compressor |
| WO2023273065A1 (en) * | 2021-06-28 | 2023-01-05 | 鑫磊压缩机股份有限公司 | Air suspension blower having rear-mounted thrust bearing |
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| CA949632A (en) * | 1971-03-16 | 1974-06-18 | Nikolaus Laing | Plain bearing |
| CH659510A5 (en) * | 1982-08-21 | 1987-01-30 | Renk Ag Zahnraeder | HYDRODYNAMIC BEARING ARRANGEMENT. |
| JPH08189525A (en) * | 1995-01-10 | 1996-07-23 | Hitachi Ltd | Dynamic pressure bearing spindle motor |
| CN202170884U (en) * | 2011-06-22 | 2012-03-21 | 江苏金通灵流体机械科技股份有限公司 | Air shaft and bearing combination of single-stage air suspension high-speed centrifugal blower |
| CN103454874A (en) * | 2012-05-30 | 2013-12-18 | 三菱化学株式会社 | Bearing member, end member, photosensitive drum unit, process cartridge, and method for manufacturing bearing member |
| CN103846459A (en) * | 2014-02-25 | 2014-06-11 | 上海大学 | Electric main shaft supported by hydrostatic integrated gas bearing |
| CN104179712A (en) * | 2014-08-20 | 2014-12-03 | 石家庄金士顿轴承科技有限公司 | Air suspension centrifugal blower |
| CN104675859A (en) * | 2015-03-16 | 2015-06-03 | 湖南大学 | Ultrasonic thrust air bearing with curve grooves |
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2017
- 2017-03-31 CN CN201710207493.XA patent/CN106968972B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA949632A (en) * | 1971-03-16 | 1974-06-18 | Nikolaus Laing | Plain bearing |
| CH659510A5 (en) * | 1982-08-21 | 1987-01-30 | Renk Ag Zahnraeder | HYDRODYNAMIC BEARING ARRANGEMENT. |
| JPH08189525A (en) * | 1995-01-10 | 1996-07-23 | Hitachi Ltd | Dynamic pressure bearing spindle motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605765A (en) * | 2017-10-19 | 2018-01-19 | 潍坊富源增压器有限公司 | Centrifugal blower |
| CN111486107A (en) * | 2019-01-29 | 2020-08-04 | 青岛海尔智能技术研发有限公司 | Centrifugal compressor and heat pump system |
| CN111486107B (en) * | 2019-01-29 | 2022-01-04 | 青岛海尔智能技术研发有限公司 | Centrifugal compressor and heat pump system |
| WO2022105209A1 (en) * | 2020-11-18 | 2022-05-27 | 至玥腾风科技集团有限公司 | Air-cooled compressor |
| WO2023273065A1 (en) * | 2021-06-28 | 2023-01-05 | 鑫磊压缩机股份有限公司 | Air suspension blower having rear-mounted thrust bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106968972B (en) | 2023-04-18 |
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