CN109899303A - A kind of small miniature centrifugal compressors of no transverse bearing - Google Patents
A kind of small miniature centrifugal compressors of no transverse bearing Download PDFInfo
- Publication number
- CN109899303A CN109899303A CN201910089303.8A CN201910089303A CN109899303A CN 109899303 A CN109899303 A CN 109899303A CN 201910089303 A CN201910089303 A CN 201910089303A CN 109899303 A CN109899303 A CN 109899303A
- Authority
- CN
- China
- Prior art keywords
- shell
- stationary ring
- ring
- fixedly installed
- rotating ring
- 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
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of small miniature centrifugal compressors of no transverse bearing, are related to compressor design technical field, comprising: shell；The air-flow through-hole communicated with shell exhaust outlet is provided in main shaft；The interior bottom of first axis stationary ring and shell forms cavity, and first axis stationary ring is circumferentially provided at least two weeks venthole A；First rotating ring is fixedly installed on main shaft；Rotaring sleeve is fixedly installed on the outer surface of rotor；Determine the inner surface that sleeve is fixedly installed on stator；Second rotating ring is fixedly installed on main shaft；Second axial stationary ring is fixedly installed in shell；The porting of centrifugal impeller and the porting of shell are oppositely arranged respectively.The invention has the advantages that compressor oil-free does not need lubricating system without installing radial direction and axial thrust bearing so that the structure of compressor it is simpler with it is compact, be conducive to the small miniaturization of compressor；The heat of motor course of work generation is taken away in airflow circulating channel, plays interior hydronic effect.
Description
Technical field
The present invention relates to compressor design technical field, especially a kind of small miniature centrifugal compressors of no transverse bearing.
Background technique
With the development of the electronic technology such as integrated circuit, modern high hot-fluid device heat flow density is increasing, using passive
Formula cooling means is unable to satisfy cooling requirements, needs to be equipped with refrigeration system just and can guarantee the normal operation of electronic system.In movement
Or many occasions such as the cooling of portable electronic system, chip cooling technique, radar and defence and military are due to the limit by space, weight
System, there is an urgent need to light weights, small miniature refrigeration system.
Compressor is the core key equipment of refrigeration system, and centrifugal compressor has knot as rotary turbomachinery
The compact simple, efficiency of structure and high reliablity, the advantages that service life period is long, are ideal small micro-compressor types.But it is small
Miniature centrifugal compressors will obtain high pressure at expulsion to meet refrigeration system requirement, it is necessary to improve compressor rotary speed, reduce axis
Sealing leak is held, current existing technology is unable to reach these requirements.
Current small micro-compressor mainly has rolling rotor-type and two kinds of linear piston formula, and principle is totally different from centrifugation
Formula compressor.Use magnetic suspension bearing and the high revolving speed centrifugal compressor of gas bearing support that can not also accomplish at present small miniature,
Magnetic bearing structure is complicated, needs individual control system, and hydrostatic gas-lubricated bearing needs independent compressed gas source to be supplied,
Small miniaturization is all limited；Kinetic pressure gas bearing structure is complicated, very high to material and processing technology requirement, reliability and service life without
Method guarantees.In addition, the shaft end seal technical problem of compressor is also the bottleneck for restricting centrifugal compressor and developing to small miniaturization.From
Heart Compressor Technology is also unable to satisfy the requirement of small mini-refrigerator system.
Rolling rotor compressor and linear piston formula compressor its working principle determine can not further realize it is miniature
Change, and both compressor operational efficiency are low, there is vulnerable part in components, need to regularly replace, reliability not can guarantee with the service life.
Centrifugal compressor structure is simple, and without components easy to damage, high reliablity, the service life is long.But centrifugal compressor only has
Logical excessive speeds are just able to achieve small miniaturization, and existing magnetic suspension bearing and gas bearing and sealing technique, can not also at present
Accomplish the ultrahigh speed small miniaturization of centrifugal compressor.
Summary of the invention
The purpose of the present invention is to solve high-speed bearing and Gas sealing technology, a kind of the small of no transverse bearing is devised
Miniature centrifugal compressors.
To achieve the goals above, the technical scheme is that, a kind of small miniature centrifugal compressors of no transverse bearing,
Include: shell, is equipped with an air inlet and an exhaust outlet；Main shaft, rotary setting are provided in the main shaft in the shell
The air-flow through-hole communicated with the shell exhaust outlet；First axis stationary ring is fixedly installed in the shell, the first axis
The interior bottom of stationary ring and the shell forms cavity, and the first axis stationary ring is circumferentially provided at least two weeks venthole A；First is dynamic
Ring is fixedly installed on the main shaft, positioned at the outside of the first axis stationary ring；Rotor is fixedly installed on the main shaft,
Positioned at the outside of first rotating ring；Rotaring sleeve is fixedly installed on the outer surface of the rotor；Stator is fixedly installed on described
In shell, it is oppositely arranged with the rotor；Determine sleeve, is fixedly installed on the inner surface of the stator；Second rotating ring, fixed setting
In on the main shaft, positioned at the outside of the rotor；Second axial stationary ring, is fixedly installed in the shell, is located at described the
On two rotating rings, be located in shell, positioned at the outside of first axis stationary ring, the air inlet of the centrifugal impeller and the shell into
Port is oppositely arranged, and the exhaust outlet of the centrifugal impeller is oppositely arranged with the shell exhaust outlet；Wherein, the first axis is quiet
Ring and the first rotating ring form first passage, and the rotaring sleeve forms second channel, second rotating ring and the second axis with sleeve is determined
Third channel is formed to stationary ring, the described second axial stationary ring and centrifugal impeller form fourth lane；The exhaust of the centrifugal impeller
Mouth is communicated through fourth lane with venthole B, and the venthole B is communicated after third channel and second channel with venthole A, described
Venthole A is communicated after cavity with air-flow through-hole.
It further, further include radial stationary ring, the radial direction stationary ring is fixedly installed on the shell, is located at described second
The outside of rotating ring.
Further, the gap between the radial stationary ring and the second rotating ring is greater than between main shaft and first axis stationary ring
Gap.
Further, the gap between the radial stationary ring and the second rotating ring is greater than between main shaft and the second axial stationary ring
Gap.
Further, the described second axial stationary ring is circumferentially provided with one week venthole B, the outer diameter of the described second axial stationary ring
For D4, the diameter where the center of circle of the venthole B is D5,
Further, the first axis stationary ring is circumferentially provided with two weeks venthole A, the first axis stationary ring it is outer
Diameter is D1, and the diameter where the center of circle of the venthole A in outside is D2, and the venthole of inside is D3,
Further, the end face and cylindrical surface of first rotating ring and the second rotating ring are provided with dynamic pressure groove.
Further, the shell includes shell and pedestal, and the centrifugal impeller is set in the shell, and described second
Axial stationary ring is set in the pedestal.
Further, first rotating ring and the second rotating ring are all made of hard alloy.
Further, the first axis stationary ring and the second axial static ring material hardness are below the first rotating ring and second
Rotating ring.
The beneficial effects of the present invention are:
1, without installing radial direction and axial thrust bearing, compressor oil-free does not need lubricating system, so that compressor
Structure it is simpler with it is compact, be conducive to the small miniaturization of compressor；
2, air film support is formed between rotating ring and stationary ring, is generated dynamic pressure effect between rotaring sleeve rotation Shi Yuding sleeve and is formed
After air film, with compressor drum axial direction load, radial load balance, compressor drum is set to be in gas suspension state, no solid connects
Friction loss is touched, compressor can achieve ultrahigh rotating speed；
3, the heat of motor course of work generation is taken away in airflow circulating channel, plays interior hydronic effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the application compressor.
In above each figure, 1, shell；11, shell；12, pedestal；2, main shaft；21, air-flow through-hole；3, first axis stationary ring；
31, venthole A；4, the first rotating ring；5, rotor；51, rotaring sleeve；6, stator；61, determine sleeve；7, the second rotating ring；8, second is axial
Stationary ring；81, venthole B；9, centrifugal impeller.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to specific embodiment, structure, feature and its effect according to the present invention, detailed description are as follows:
A kind of small miniature centrifugal compressors of no transverse bearing, as shown in Figure 1, including shell 1, main shaft 2, first axis is quiet
Ring 3, the first rotating ring 4, rotor 5, rotaring sleeve 51, stator 6 determine sleeve 61, the second rotating ring 7, the second axial stationary ring 8 and centrifugal impeller
9。
The shell 1 of compressor is equipped with an air inlet and an exhaust outlet.Main shaft 2 is rotatably provided in shell 1, main shaft 2
It is inside provided with air-flow through-hole 21, one end of the air-flow through-hole 21 is communicated with the exhaust outlet of shell 1, the sky inside the other end and shell 1
Chamber connection.First axis stationary ring 3 is fixed in shell 1, and first axis stationary ring 3 is located in shell 1, first axis stationary ring 3
Cavity is formed with the interior bottom of shell 1, first axis stationary ring 3 is circumferentially provided with two weeks venthole A31.The fixed setting of first rotating ring 4
On main shaft 2, the first rotating ring 4 is located at the outside of first axis stationary ring 3.
Rotor 5 is fixed on main shaft 2, and stator 6 is fixedly installed in shell 1, and rotor 5 and stator 6 are arranged at shell
In body 1, stator 6 is oppositely arranged with rotor 5.Rotaring sleeve 51 is fixed at the outer surface of rotor 5, determines sleeve 61 and is fixed at
The inner surface of stator 6.
Second rotating ring 7 is fixed on main shaft 2, and the second rotating ring 7 is located at the outside of rotor 5.Preferably, radial stationary ring 71
It is fixed on shell 1, radial stationary ring 71 is located at the outside of the second rotating ring 7.Second axial stationary ring 8 is fixed at shell 1
Interior, the second axial stationary ring 8 is located at the outside of the second rotating ring 7, and the second axial stationary ring 8 is circumferentially provided with one week venthole B81.
Centrifugal impeller 9 is fixed on main shaft 2, and centrifugal impeller 9 is arranged in shell 1, and centrifugal impeller 9 is located at the second axis
To the outside of stationary ring 8.The porting of centrifugal impeller 9 and the porting of shell 1 are oppositely arranged respectively.Most of gas is from shell
The air inlet of body 1 enters in compressor chamber, is discharged after the speed-raising boosting of centrifugal impeller 9 from the exhaust outlet of shell 1.
First axis stationary ring 3 and the first rotating ring 4 form first passage, which is small―gap suture channel.Rotaring sleeve 51
Second channel is formed with sleeve 61 is determined.Second rotating ring 7 and the second axial stationary ring 8 form third channel, which is small
Gap channel.Second axial stationary ring 8 forms fourth lane with centrifugal impeller 9, which is small―gap suture channel.Centrifugal impeller 9
Exhaust outlet communicated through fourth lane with venthole B81, venthole B81 after third channel and second channel with venthole A31
It communicates, venthole A31 is communicated after cavity with air-flow through-hole 21.
In use, 5 driving spindle 2 of rotor rotates, and the first rotating ring 4, the second rotating ring 7 and centrifugal impeller 9 are with main shaft 2
It rotates together, partial gas can be directly entered in fourth lane after the outflow of the exhaust outlet of centrifugal impeller 9, then by logical
Stomata B81 enters in third channel, can gradually increase in rotary course close to radial direction 71 gas pressure of stationary ring, then flow to
In second channel, first axis stationary ring 3 and shell 1 are then flow in first passage and entered from the venthole A31 of outside
Interior bottom cavity in, a part of gas is entered between stationary ring 3 and rotating ring 4 by inside venthole A31 again, phantom ring rotational pressure
It increases, is flowed out from outside venthole A31, due to being provided with air-flow through-hole 21 in main shaft 2, air-flow can flow to shell from air-flow through-hole 21
At 1 air inlet.Above-mentioned flow process is an airflow circulating channel.The airflow channel can take away the generation of the motor course of work
Heat, play interior hydronic effect.
In the first rotating ring 4 and the second rotating ring 7 in 2 rotary course of main shaft, the first rotating ring 4 and the second rotating ring about 7 two
A end face and circumferential cylindrical surface can generate dynamic pressure effect between 71 surface of 1 inner wall of shell and radial stationary ring respectively, form gas
Film, in order to improve dynamic pressure effect, the end face and cylindrical surface of the first rotating ring 4 and the second rotating ring 7 are provided with dynamic pressure groove.Motor rotaring sleeve
Dynamic pressure effect can be also generated between 51 rotation Shi Yuding sleeves 61 and forms air film, and compressor drum is made to be also at suspension radially
State, autobalance adjust radial clearance.Air film make compressor rotor system (including shaft 2, rotor 3, rotating ring 7, centrifugation
Impeller 9) it is in suspended state, no solid contact frictional dissipation can achieve ultrahigh rotating speed, while the pressure of air film is higher than rotor
Intracavitary pressure where 5 has reached the sealing effect of similar dry gas seals；Compressor use fully closed structure, only one
A air inlet and exhaust outlet are not necessarily to other lubricating and cooling systems, avoid shaft end external leakage, i.e., without external leakage.
Preferably, the outer diameter of the second axial stationary ring 8 is D4, and the diameter where the center of circle of venthole B81 is D5,First axis stationary ring is circumferentially provided with two weeks ventholes, and the outer diameter of stationary ring is D1, the center of circle place of outside venthole
Diameter be D2, inside venthole be D3,The design can stablize the formation of air film.
In addition, between the gap between radial stationary ring 71 and the second rotating ring 7 is greater than between main shaft 2 and first axis stationary ring 3
Gap；Gap between radial stationary ring 71 and the second rotating ring 7 is greater than the gap between main shaft 2 and the second axial stationary ring 8, which keeps away
Exempt from the second rotating ring 7 and impacts radial stationary ring 71.
Shell 1 includes shell 11 and pedestal 12, and centrifugal impeller 9 is arranged in shell 11, and the second axial stationary ring 8 is arranged the bottom of at
In seat 12, which is easily installed compressor.
First axis stationary ring 3 and the first rotating ring 4 and the second rotating ring 7 and the second axis in compressor start or stopping process
Reduce frictional dissipation, the soft or hard pairing of dynamic and static ring material, 4 He of the first rotating ring to the of short duration friction of the meeting of stationary ring 8 to reduce coefficient of friction
Second rotating ring 7 is all made of hard alloy, and first axis stationary ring 3 and the second axial 8 material hardness of stationary ring are below the first rotating ring 4 and the
Two rotating rings 7, and sprayed on the surface of first axis stationary ring 3, the first rotating ring 4, the second rotating ring 7 and the second axial stationary ring 8, it mentions
Rise the greasy property and wearability on surface.
Above with reference to preferred embodiment, invention has been described, but protection scope of the present invention is not restricted to
This can carry out various improvement to it and can be replaced wherein with equivalent without departing from the scope of the invention
Component, as long as be not present structural conflict, it is mentioned in the various embodiments items technical characteristic can combine in any way
Get up, and any reference signs in the claims should not be construed as limiting the involved claims, no matter comes from which point
It sees, the present embodiments are to be considered as illustrative and not restrictive.Therefore, any to fall within the scope of the appended claims
All technical solutions be within the scope of the invention.
Claims (10)
1. a kind of small miniature centrifugal compressors of no transverse bearing characterized by comprising
Shell (1) is equipped with an air inlet and an exhaust outlet；
Main shaft (2), rotary setting are provided in the main shaft (2) and communicate with the shell (1) exhaust outlet in the shell (1)
Air-flow through-hole (21)；
First axis stationary ring (3) is fixedly installed in the shell (1), the first axis stationary ring (3) and the shell (1)
Interior bottom form cavity, the first axis stationary ring (3) is circumferentially provided at least two weeks venthole A (31)；
First rotating ring (4) is fixedly installed on the main shaft (2), is located at the outside of the first axis stationary ring (3)；
Rotor (5) is fixedly installed on the main shaft (2), is located at the outside of first rotating ring (4)；
Rotaring sleeve (51), is fixedly installed on the outer surface of the rotor (5)；
Motor stator (6) is fixedly installed in the shell (1), is oppositely arranged with the rotor (5)；
Determine sleeve (61), is fixedly installed on the inner surface of the stator (6)；
Second rotating ring (7) is fixedly installed on the main shaft (2), is located at the outside of the rotor (5)；
Second axial stationary ring (8), is fixedly installed in the shell (1), is located at the outside of second rotating ring (7), and described the
Two axial stationary rings (8) are circumferentially provided at least one week venthole B (81)；
Centrifugal impeller (9) is fixedly installed on the main shaft (2), is located in shell (1), and the outer of first axis stationary ring (5) is located at
The air inlet of side, the air inlet and the shell (1) of the centrifugal impeller (9) is oppositely arranged, the exhaust of the centrifugal impeller (9)
Mouth is oppositely arranged with the shell (1) exhaust outlet；
Wherein, the first axis stationary ring (3) and the first rotating ring (4) form first passage, the rotaring sleeve (51) and determine sleeve
(61) second channel is formed, second rotating ring (7) and the second axial stationary ring (8) form third channel, second axial static
Ring (8) and centrifugal impeller (9) form fourth lane；The exhaust outlet of the centrifugal impeller (9) is through fourth lane and venthole B (81)
It communicates, the venthole B (81) communicates after third channel and second channel with venthole A (31), venthole A (31) warp
It is communicated after cavity with air-flow through-hole (21).
2. a kind of small miniature centrifugal compressors of no transverse bearing according to claim 1, which is characterized in that further include diameter
To stationary ring (71), the radial direction stationary ring (71) is fixedly installed on the shell (1), is located at the outside of second rotating ring (7).
3. a kind of small miniature centrifugal compressors of no transverse bearing according to claim 2, which is characterized in that the radial direction
Gap between stationary ring (71) and the second rotating ring (7) is greater than the gap between main shaft (2) and first axis stationary ring (3).
4. a kind of small miniature centrifugal compressors of no transverse bearing according to claim 2, which is characterized in that the radial direction
Gap between stationary ring (71) and the second rotating ring (7) is greater than the gap between main shaft (2) and the second axial stationary ring (8).
5. a kind of small miniature centrifugal compressors of no transverse bearing according to claim 1, which is characterized in that described second
Axial stationary ring (8) is circumferentially provided with one week venthole B (81), and the outer diameter of the described second axial stationary ring (8) is D4, the venthole
Diameter where the center of circle of B (81) is D5,
6. a kind of small miniature centrifugal compressors of no transverse bearing according to claim 5, which is characterized in that described first
Axial stationary ring (3) is circumferentially provided with two weeks venthole A (31), and the outer diameter of the first axis stationary ring (3) is D1, outside it is described
Diameter where the center of circle of venthole A (31) is D2, and the venthole of inside is D3,
7. a kind of small miniature centrifugal compressors of no transverse bearing according to claim 1, which is characterized in that described first
The end face and cylindrical surface of rotating ring (4) and the second rotating ring (7) are provided with dynamic pressure groove.
8. a kind of small miniature centrifugal compressors of no transverse bearing according to claim 1, which is characterized in that the shell
It (1) include shell (11) and pedestal (12), the centrifugal impeller (9) is set in the shell (11), second axial static
Ring (8) is set in the pedestal (12).
9. a kind of small miniature centrifugal compressors of no transverse bearing according to claim 1, which is characterized in that described first
Rotating ring (4) and the second rotating ring (7) are all made of hard alloy.
10. according to claim 1 or a kind of small miniature centrifugal compressors of no transverse bearing described in 9, which is characterized in that described
First axis stationary ring (3) and second axial stationary ring (8) material hardness are below the first rotating ring (4) and the second rotating ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910089303.8A CN109899303B (en) | 2019-01-30 | 2019-01-30 | A Small Micro Centrifugal Compressor Without Radial Bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910089303.8A CN109899303B (en) | 2019-01-30 | 2019-01-30 | A Small Micro Centrifugal Compressor Without Radial Bearings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109899303A true CN109899303A (en) | 2019-06-18 |
| CN109899303B CN109899303B (en) | 2020-12-01 |
Family
ID=66944450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910089303.8A Active CN109899303B (en) | 2019-01-30 | 2019-01-30 | A Small Micro Centrifugal Compressor Without Radial Bearings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109899303B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500293A (en) * | 2019-08-30 | 2019-11-26 | 广州市昊志机电股份有限公司 | Centrifugal compressor |
| CN110594172A (en) * | 2019-08-05 | 2019-12-20 | 重庆和睦环保工程有限公司 | Centrifugal draught fan for boiler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2034999C1 (en) * | 1992-03-03 | 1995-05-10 | Королев Эдуард Геннадьевич | Centrifugal cryogenic compressor |
| CN106762694A (en) * | 2016-12-12 | 2017-05-31 | 华中科技大学 | A kind of miniature hydraulic suspension mechanical pump |
| KR20170061507A (en) * | 2015-11-26 | 2017-06-05 | 한온시스템 주식회사 | Air blower for vehicle |
| KR20170128823A (en) * | 2016-05-16 | 2017-11-24 | 주식회사 동희산업 | Shaft Extension Cooling type Air Compressor and Fuel Stack Vehicle thereof |
| CN108533510A (en) * | 2018-05-18 | 2018-09-14 | 潍坊富源增压器有限公司 | Fuel cell air suspension centrifugal compressor |
-
2019
- 2019-01-30 CN CN201910089303.8A patent/CN109899303B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2034999C1 (en) * | 1992-03-03 | 1995-05-10 | Королев Эдуард Геннадьевич | Centrifugal cryogenic compressor |
| KR20170061507A (en) * | 2015-11-26 | 2017-06-05 | 한온시스템 주식회사 | Air blower for vehicle |
| KR20170128823A (en) * | 2016-05-16 | 2017-11-24 | 주식회사 동희산업 | Shaft Extension Cooling type Air Compressor and Fuel Stack Vehicle thereof |
| CN106762694A (en) * | 2016-12-12 | 2017-05-31 | 华中科技大学 | A kind of miniature hydraulic suspension mechanical pump |
| CN108533510A (en) * | 2018-05-18 | 2018-09-14 | 潍坊富源增压器有限公司 | Fuel cell air suspension centrifugal compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594172A (en) * | 2019-08-05 | 2019-12-20 | 重庆和睦环保工程有限公司 | Centrifugal draught fan for boiler |
| CN110500293A (en) * | 2019-08-30 | 2019-11-26 | 广州市昊志机电股份有限公司 | Centrifugal compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109899303B (en) | 2020-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI694210B (en) | Super high speed blower | |
| CN106026491B (en) | A kind of small micromotor | |
| CN109707637A (en) | A small and micro centrifugal compressor supported by double air suspension | |
| CN111486110A (en) | Centrifugal compressor and heat pump system | |
| CN207538866U (en) | Two-stage cantilevered axis stream expanding machine | |
| CN111156180A (en) | Gas compressor, rotor system and micro gas turbine | |
| CN211370773U (en) | Air suspension compressor | |
| JP5056432B2 (en) | Rotating shaft device and fuel cell system | |
| CN109899303A (en) | A kind of small miniature centrifugal compressors of no transverse bearing | |
| CN110094236A (en) | A kind of helium turbine shaft architecture | |
| CN109707638A (en) | A small and micro centrifugal compressor with integrated bearing and seal | |
| CN214063570U (en) | Air suspension rotating mechanism, compressor and air conditioner | |
| CN111486107A (en) | Centrifugal compressor and heat pump system | |
| CN211778076U (en) | Gas compressor, rotor system and micro gas turbine | |
| CN103115072B (en) | A kind of sealing configuration of oil-lubricated bearing | |
| CN111486108A (en) | Centrifugal compressor and heat pump system | |
| US5451147A (en) | Turbo vacuum pump | |
| CN211397962U (en) | Air suspension compressor | |
| CN109751254A (en) | A vertical miniature air suspension centrifugal compressor | |
| CN215109551U (en) | Bearing air seal structure of pneumatic-pneumatic suspension centrifugal refrigeration compressor and compressor | |
| CN111486109A (en) | Centrifugal compressor and heat pump system | |
| CN216767490U (en) | Turning device and gas turbine | |
| JP2006152994A (en) | Centrifugal compressor | |
| CN113153770A (en) | Bearing air seal structure of pneumatic-pneumatic suspension centrifugal refrigeration compressor and compressor | |
| CN114658855B (en) | A Spindle Vacuum Anti-Oil Mist Dynamic Sealing Device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |