CN106762637A - Compressor and its main shaft - Google Patents
Compressor and its main shaft Download PDFInfo
- Publication number
- CN106762637A CN106762637A CN201710128853.7A CN201710128853A CN106762637A CN 106762637 A CN106762637 A CN 106762637A CN 201710128853 A CN201710128853 A CN 201710128853A CN 106762637 A CN106762637 A CN 106762637A
- Authority
- CN
- China
- Prior art keywords
- main shaft
- boss
- annular boss
- compressor
- slide plate
- 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
- 238000005461 lubrication Methods 0.000 abstract description 3
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of compressor and its main shaft, main shaft has upper surface and lower surface, and the escape groove for being provided with and being passed through for the slide plate of the compressor is provided with annular boss, and the annular boss at least one of the upper surface and lower surface.Due to being provided with annular boss on the upper surface and/or lower surface of main shaft, main shaft is the apex area of annular boss with the contact area of flange or end cap, no longer it is that main shaft end face is entirely contacted with flange or end cap, cross section of the apex area of annular boss less than main shaft, therefore upper surface and/or lower surface are reduced with flange or the contact area of end cap, be conducive to lubrication, and greatly reduce frictional dissipation.
Description
Technical field
The present invention relates to air supply rate technical field, more specifically to a kind of compressor and its main shaft.
Background technology
The main shaft of sliding-vane compressor has upper surface and lower surface, and the upper and lower end face of main shaft coordinates realization with flange
Seal request.It is one of important friction pair in sliding-vane compressor running, between the upper and lower end face of main shaft and flange,
Its mechanical consumption accounting is big during compressor operating.
In sum, the friction of main shaft end face how is efficiently reduced, is that current those skilled in the art are badly in need of solving
Problem.
The content of the invention
In view of this, first purpose of the invention is to provide a kind of main shaft, and the structure design of the main shaft can be effective
Ground reduces the friction of main shaft end face, and second object of the present invention is to provide a kind of compressor including above-mentioned main shaft.
In order to reach above-mentioned first purpose, the present invention provides following technical scheme：
A kind of main shaft of compressor, the main shaft has upper surface and lower surface, in the upper surface and lower surface extremely
The escape groove for being provided with and being passed through for the slide plate of the compressor is provided with annular boss, and the annular boss on few one.
Preferably, in the main shaft of above-mentioned compressor, the annular boss and the main shaft are coaxially disposed and along on described
The edge of end face or lower surface extends.
Preferably, in the main shaft of above-mentioned compressor, it is provided with the end face of the annular boss and is additionally provided with first boss.
Preferably, in the main shaft of above-mentioned compressor, the first boss is located at the inside of the annular boss.
Preferably, there is the vane slot coordinated with the slide plate in the main shaft of above-mentioned compressor, in the first boss, and
During it can extend into the vane slot near the side of the main-shaft axis when slide plate is moved back and forth.
Preferably, in the main shaft of above-mentioned compressor, the quantity of the first boss is equal with the quantity of the slide plate, and institute
First boss is stated to be corresponded with slide plate.
Preferably, in the main shaft of above-mentioned compressor, the first boss is three with the quantity of the slide plate.
Preferably, in the main shaft of above-mentioned compressor, pressure release through hole is further opened with the bottom wall of the vane slot.
Preferably, in the main shaft of above-mentioned compressor, the first boss is connected with the annular boss.
Preferably, in the main shaft of above-mentioned compressor, there is gap between the first boss and the annular boss.
Preferably, in the main shaft of above-mentioned compressor, it is additionally provided between adjacent two escape groove of the annular boss
Pressure release passage.
Preferably, in the main shaft of above-mentioned compressor, the pressure release passage is from the annular boss near the spindle shaft
The direction of line is recessed to be formed.
Preferably, in the main shaft of above-mentioned compressor, the annular boss is provided with the upper and lower end face.
A kind of compressor, it is characterised in that including the main shaft as described in above-mentioned any one.
Preferably, in above-mentioned compressor, pressure release is additionally provided between adjacent two escape groove of the annular boss and is led to
Road, is provided with the flange of the compressor and is connected row pressure passage with the pressure release passage.
The main shaft of the compressor that the present invention is provided has upper surface and lower surface, and wherein upper surface and lower surface can be with method
Blue or end cap seal coordinates.Focus on, annular boss, i.e. upper surface are provided with least one of upper surface and lower surface
And/or annular boss is provided with lower surface, the axis of main shaft passes through the hollow bulb of annular boss.Confession is provided with annular boss
The escape groove that the slide plate of compressor is passed through.Slide opening is offered on main shaft, slide plate can move back and forth to realize pressure in slide opening
The change of chamber volume.The end along main shaft axial direction of slide plate concordant with annular boss can be set, and slide plate passes through annular boss
Escape groove.
Using compressor provided in an embodiment of the present invention main shaft when, slide plate moved back and forth in the slide opening of main shaft with realize
The change of pressure chamber volume, can form closed pressure chamber between slide plate, cylinder C and main shaft.Also, the upper surface of main shaft
And/or the annular boss and flange or end cap on lower surface offset to realize the sealing between main shaft end face and flange or end cap.
Due to being provided with annular boss on the upper surface and/or lower surface of main shaft, main shaft is annular with the contact area of flange or end cap
The apex area of boss, is no longer that main shaft end face is entirely contacted with flange or end cap, and the apex area of annular boss is less than main shaft
Cross section, therefore reduce upper surface and/or lower surface and flange or the contact area of end cap, be conducive to lubrication, and drop significantly
Low frictional dissipation.
In order to reach above-mentioned second purpose, present invention also offers a kind of compressor, the compressor includes any of the above-described
Plant main shaft.Because above-mentioned main shaft has above-mentioned technique effect, the compressor with the main shaft should also be imitated with corresponding technology
Really.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the sectional view of main shaft provided in an embodiment of the present invention；
Fig. 2 is the structural representation of main shaft provided in an embodiment of the present invention；
Fig. 3 is the top view of main shaft provided in an embodiment of the present invention；
The top view of the main shaft that Fig. 4 is provided for another embodiment of the present invention；
The top view of the main shaft that Fig. 5 is provided for another embodiment of the present invention；
Fig. 6 is the sectional view of compressor provided in an embodiment of the present invention；
Fig. 7 is the structural representation of compressor provided in an embodiment of the present invention.
In figures 1-7：
A- main shafts, 1- upper surfaces, 2- lower surfaces, 3- slide openings, 4- annular boss, 41- pressure release passages, 5- first boss, 51-
Vane slot, 52- pressure releases through hole, B- flanges, C- cylinders, D- slide plates.
Specific embodiment
First purpose of the invention is to provide a kind of main shaft, and the structure design of the main shaft can efficiently reduce main shaft
The friction of end face, second object of the present invention is to provide a kind of compressor including above-mentioned main shaft.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-Fig. 7 is referred to, the principal axis A of compressor provided in an embodiment of the present invention has upper surface 1 and lower surface 2, its
Middle upper surface 1 and lower surface 2 can be with flange B or end cap seal cooperations.Focus on, in upper surface 1 and lower surface 2 at least
It is provided with one and annular boss 4 is provided with annular boss 4, i.e. upper surface 1 and/or lower surface 2, the axis of principal axis A is passed through
The hollow bulb of annular boss 4.The escape groove passed through for the slide plate D of compressor is provided with annular boss 4.Offered in principal axis A
Slide opening 3, slide plate D can move back and forth to realize the change of pressure chamber volume in slide opening 3.Slide plate D along principal axis A axial direction
End concordant with annular boss 4 can be set, escape groove of the slide plate D through annular boss 4.
Using compressor provided in an embodiment of the present invention principal axis A when, slide plate D moved back and forth in the slide opening 3 of principal axis A with
The change of pressure chamber volume is realized, closed pressure chamber can be formed between slide plate D, cylinder C and principal axis A.Also, principal axis A
Annular boss 4 and flange B or end cap on upper surface 1 and/or lower surface 2 offset to realize principal axis A end face and flange B or end cap
Between sealing.Due to being provided with annular boss 4, principal axis A and flange B or end cap on the upper surface 1 and/or lower surface 2 of principal axis A
Contact area be the apex area of annular boss 4, be no longer principal axis A end face entirely with flange B or end cap is contacted, annular boss
4 apex area is less than the cross section of principal axis A, therefore reduces upper surface 1 and/or lower surface 2 with flange B or the contact surface of end cap
Product, is conducive to lubrication, and greatly reduce frictional dissipation.
Wherein, annular boss 4 is the boss joined end to end in closure round, and it can be with round ring boss or square convex annular
Platform, can also be certainly other shapes of annular boss, be not limited thereto.
Preferably, annular boss 4 is coaxially disposed with principal axis A, i.e., annular boss 4 along principal axis A circumferentially extending.So set
Put so that during compressor operating, the operation of principal axis A is more steady.
Further, annular boss 4 along upper surface 1 or lower surface 2 edge extend, i.e., the external diameter of annular boss 4 with
The outer surface diameter of principal axis A is equal.Be arranged such, principal axis A, cylinder C and slide plate D-shaped into seal-off pressure chamber regular shape, keep away
The stair-stepping pressure chamber of appearance is exempted from.
In another embodiment, as illustrated in figs. 2-7, it is provided with the end face of annular boss 4 and is also provided with first boss
Annular boss 4 and first boss 5 are provided with 5, i.e. upper surface 1 and/or lower surface 2 simultaneously.It is arranged such and easily facilitates principal axis A
Sealing between flange or end cap is set, and contributes to the pressure on the top of reduction annular boss 4, to ensure that principal axis A is run
It is more steady.
Further, first boss 5 may be located at the inside of annular boss 4, i.e. first boss 5 positioned at annular boss 4
Hollow part, and first boss 5 is enclosed portion in the inner by annular boss 4.First boss 5 is located at the close master of the inwall of annular boss 4
The side of axle A axis.Certainly, first boss 5 can also be located at the side away from principal axis A axis of the inwall of annular boss 4, herein
It is not construed as limiting.
Preferably, vane slot 51 is further opened with first boss 5, and vane slot 51 can coordinate with slide plate D, i.e. slide plate
When moving back and forth, the side of the close principal axis A axis of slide plate D can extend into vane slot 51 D.The close principal axis A axle of slide plate D
The side of line is the afterbody of slide plate D, and when being moved to the direction away from cylinder C, the afterbody of slide plate D can extend into slide plate to slide plate D
In groove 51.When slide plate D and cylinder C offsets, the side that slide plate D is contacted with cylinder C is the head of slide plate D.The energy of vane slot 51 is set
The spacing and inwall of vane slot 51 is enough carried out to slide plate D can provide support force to slide plate D.Vane slot 51 can be bar-shaped trough, bar
The length direction of shape groove is set along the reciprocating directions of slide plate D.
In above-described embodiment, the quantity of first boss 5 and the quantity of slide plate D can be with equal, and first boss 5 and slide plate
D is corresponded.When i.e. multiple slide plate D are moved, the afterbody of multiple slide plate D can be respectively protruding into the vane slot of multiple first boss 5
In 51, the vane slot 51 of so multiple first boss 5 can be carried out spacing and supported to multiple slide plates respectively.Specifically, first
Boss 5 can be three with the quantity of slide plate, and certain first boss 5 can also be other quantity with slide plate D, not limit herein
It is fixed.
As shown in figure 4, in order to seal, lubricating oil is typically provided with vane slot 51, the afterbody of slide plate D stretches into vane slot 51
Lubricating oil is extruded when middle.In order to avoid the lubricating oil pressure in vane slot 51 is excessive, can also be in vane slot 51
Bottom wall on offer pressure release through hole 52, be arranged such pressure it is excessive when, parts of lubricating oil can be discharged from pressure release through hole 52, with
Realize pressure release.
As shown in figure 5, in another embodiment, first boss 5 is connected with annular boss 4, i.e., the side of first boss 5 with
Annular boss 4 is connected, or first boss 5 is structure as a whole with annular boss 4.When first boss 5 is bar shaped, its one end position
Between annular boss 4 and principal axis A axis, the other end is connected with annular boss 4.
As in Figure 2-4, or, between first boss 5 and annular boss 4 have gap, i.e. first boss 5 and convex annular
Platform 4 is not connected to.Further, when having vane slot 51 in first boss 5, first boss 5 can also be entirely located in the axle of principal axis A
Between line and annular boss 4.Can as the case may be set, be not limited thereto.
First boss 5 should be in the same plane with the top of annular boss 4, or the top of first boss 5 is less than
Annular boss 4 can also.
As Figure 2-3, it is additionally provided with pressure release passage 41 between adjacent two escape groove of annular boss 4, principal axis A,
The gas in pressure chamber that slide plate D and cylinder C are surrounded can be discharged from pressure release passage 41.Set when the air pressure in pressure chamber is more than
During definite value, the portion gas in pressure chamber can be discharged from pressure release passage 41, to adjust air pressure in pressure chamber.
Specifically, pressure release passage 41 can be formed from annular boss 4 to being recessed near the direction of principal axis A axis.Certainly,
Perforate can be formed on annular boss 4, be not limited thereto.
In order to further reduce frictional dissipation, annular boss 4 can be provided with upper surface 1 and lower surface 2.
Based on the main shaft provided in above-described embodiment, present invention also offers a kind of compressor, the compressor includes above-mentioned
Any one main shaft in embodiment.Because the compressor employs the main shaft in above-described embodiment, so the compressor is beneficial
Effect refer to above-described embodiment.
Specifically, pressure release passage 41, the flange of compressor are additionally provided between adjacent two escape groove of annular boss 4
On be provided with and be connected row pressure passage with pressure release passage 41.Could be arranged to be arranged when the pressure in pressure release passage 41 is more than setting value
Pressure passageway is opened.The gas in pressure chamber that i.e. main shaft, slide plate D and cylinder C are surrounded can be through pressure release passage 41 and row pressure passage
Discharge.When the air pressure in pressure chamber is more than setting value, the portion gas in pressure chamber can be logical through pressure release passage 41 and row pressure
Road is discharged, to adjust air pressure in pressure chamber.Specifically, valve can be set at row pressure passage in order to control row pressure passage
Opening and closing.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The scope most wide for causing.
Claims (15)
1. a kind of main shaft of compressor, the main shaft has upper surface (1) and lower surface (2), it is characterised in that the upper surface
(1) and it is provided with annular boss (4), and the annular boss (4) at least one of lower surface (2) and is provided with for described
The escape groove that the slide plate of compressor is passed through.
2. the main shaft of compressor according to claim 1, it is characterised in that the annular boss (4) is same with the main shaft
Axle is set and the edge along the upper surface (1) or lower surface (2) extends.
3. the main shaft of compressor according to claim 1, it is characterised in that be provided with the end face of the annular boss (4)
On be additionally provided with first boss (5).
4. the main shaft of compressor according to claim 3, it is characterised in that the first boss (5) is positioned at the annular
The inside of boss (4).
5. the main shaft of compressor according to claim 4, it is characterised in that have on the first boss (5) with it is described
Slide plate coordinate vane slot (51), and the slide plate move back and forth when its near the main-shaft axis side can extend into it is described
In vane slot (51).
6. the main shaft of compressor according to claim 5, it is characterised in that the quantity of the first boss (5) with it is described
The quantity of slide plate is equal, and the first boss (5) is corresponded with slide plate.
7. the main shaft of compressor according to claim 6, it is characterised in that the first boss (5) and the slide plate
Quantity is three.
8. the main shaft of compressor according to claim 5, it is characterised in that also opened up on the bottom wall of the vane slot (51)
There is pressure release through hole (52).
9. the main shaft of compressor according to claim 3, it is characterised in that the first boss (5) and the convex annular
Platform (4) is connected.
10. the main shaft of compressor according to claim 3, it is characterised in that the first boss (5) and the convex annular
There is gap between platform (4).
The main shaft of 11. compressor according to any one of claim 1-10, it is characterised in that the annular boss (4)
Adjacent two escape groove between be additionally provided with pressure release passage (41).
The main shaft of 12. compressors according to claim 11, it is characterised in that the pressure release passage (41) is by the annular
Boss (4) to be formed to being recessed near the direction of the main-shaft axis.
The main shaft of 13. compressors according to claim 1, it is characterised in that be provided with the upper and lower end face described
Annular boss (4).
14. a kind of compressors, it is characterised in that including the main shaft as described in claim any one of 1-13.
15. compressors according to claim 14, it is characterised in that adjacent two of the annular boss (4) avoid
Pressure release passage (41) is additionally provided between groove, is provided with the flange of the compressor and is connected row pressure with the pressure release passage (41)
Passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710128853.7A CN106762637B (en) | 2017-03-06 | 2017-03-06 | Compressor and its main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710128853.7A CN106762637B (en) | 2017-03-06 | 2017-03-06 | Compressor and its main shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762637A true CN106762637A (en) | 2017-05-31 |
| CN106762637B CN106762637B (en) | 2019-07-09 |
Family
ID=58961429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710128853.7A Active CN106762637B (en) | 2017-03-06 | 2017-03-06 | Compressor and its main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762637B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020042443A1 (en) * | 2018-08-31 | 2020-03-05 | 珠海格力电器股份有限公司 | Main shaft of compressor, compressor, and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1068393A (en) * | 1996-08-28 | 1998-03-10 | Mikuni Corp | Vacuum pump |
| JP2000073975A (en) * | 1998-09-01 | 2000-03-07 | Sanwa Seiki Co Ltd | Vacuum pump |
| JP2004308530A (en) * | 2003-04-04 | 2004-11-04 | Calsonic Compressor Seizo Kk | Gas compressor |
| CN1719037A (en) * | 2004-07-06 | 2006-01-11 | 瓦莱奥电气系统韩国有限公司 | Rotor of a vacuum vane pump for motor vehicle |
| CN206636782U (en) * | 2017-03-06 | 2017-11-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and its main shaft |
-
2017
- 2017-03-06 CN CN201710128853.7A patent/CN106762637B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1068393A (en) * | 1996-08-28 | 1998-03-10 | Mikuni Corp | Vacuum pump |
| JP2000073975A (en) * | 1998-09-01 | 2000-03-07 | Sanwa Seiki Co Ltd | Vacuum pump |
| JP2004308530A (en) * | 2003-04-04 | 2004-11-04 | Calsonic Compressor Seizo Kk | Gas compressor |
| CN1719037A (en) * | 2004-07-06 | 2006-01-11 | 瓦莱奥电气系统韩国有限公司 | Rotor of a vacuum vane pump for motor vehicle |
| CN206636782U (en) * | 2017-03-06 | 2017-11-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and its main shaft |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020042443A1 (en) * | 2018-08-31 | 2020-03-05 | 珠海格力电器股份有限公司 | Main shaft of compressor, compressor, and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106762637B (en) | 2019-07-09 |
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