CN106321443B - Sliding vane for compressor and compressor with sliding vane - Google Patents
Sliding vane for compressor and compressor with sliding vane Download PDFInfo
- Publication number
- CN106321443B CN106321443B CN201610906776.9A CN201610906776A CN106321443B CN 106321443 B CN106321443 B CN 106321443B CN 201610906776 A CN201610906776 A CN 201610906776A CN 106321443 B CN106321443 B CN 106321443B
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- Prior art keywords
- compressor
- vane
- sliding
- wall surface
- sliding vane
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Classifications
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a sliding vane for a compressor and the compressor with the sliding vane. The sliding vane for the compressor comprises a sliding vane main body, wherein the sliding vane main body is provided with a lightening hole, and the lightening hole is positioned above the gravity center of the sliding vane main body. The sliding vane for the compressor can reduce the energy consumption of the compressor.
Description
Technical Field
The invention relates to the field of air conditioning equipment, in particular to a sliding vane for a compressor and the compressor with the sliding vane.
Background
There is a vertical type compressor, which is different from a conventional horizontal type compressor, and is a vertical type compressor. As shown in fig. 1 and 2, fig. 1 is a schematic view of a state when the slider 1 'moves inward, and fig. 2 is a schematic view of a state when the slider 1' moves outward. Because the height of the sliding vane 1 ' is larger, and the sliding vane 1 ' is driven by oil pressure at the tail part, the sliding vane 1 ' can tilt when reciprocating in the sliding vane groove (the cross point of a dotted line is the position of the gravity center of the sliding vane 1 ') so as to form a tilt angle alpha, and therefore the sliding vane 1 ' is in contact with the end surfaces of the upper flange and the lower flange to scratch the end surfaces of the upper flange and the lower flange, and power consumption is increased.
Disclosure of Invention
The invention aims to provide a sliding vane for a compressor and the compressor with the sliding vane, wherein the sliding vane can reduce the energy consumption of the compressor.
The invention provides a sliding vane for a compressor, which comprises a sliding vane main body, wherein a lightening hole is arranged on the sliding vane main body and is positioned above the gravity center of the sliding vane main body.
Further, the lightening hole is formed by inwardly recessing the first side wall surface of the slider body.
Further, the first side wall surface of the vane body is a wall surface that contacts a bearing of the compressor.
Furthermore, the lightening holes are rectangular holes or triangular holes.
Furthermore, the lightening hole is inwards sunken along the second side wall surface of the sliding sheet main body and penetrates through the top wall surface of the sliding sheet main body.
According to another aspect of the present invention, there is provided a compressor, which includes a bearing and an eccentric roller disposed in the bearing, wherein a vane slot is disposed on the eccentric roller, a vane is disposed in the vane slot, and the vane is the above-mentioned vane.
Further, the first side wall surface of the vane body of the vane is in contact with the inner wall surface of the bearing.
Further, the compressor further includes: the eccentric roller is sleeved outside the main shaft, a main oil duct and a branch oil duct communicated with the main oil duct are arranged on the main shaft, the branch oil duct is communicated with the slide sheet groove, and a back pressure cavity is formed between a second side wall surface of the slide sheet, which is opposite to the first side wall surface, and the bottom of the slide sheet groove; and the oil pump is arranged at the bottom end of the main shaft and is communicated with the main oil duct of the main shaft.
Further, a gap delta is formed between the upper end face of the main shaft and an upper flange of the compressor, and the backpressure cavity is communicated with a branch oil duct of the main shaft through the gap delta.
Furthermore, the sliding sheet grooves are arranged at intervals along the circumferential direction of the eccentric roller, and a sliding sheet is arranged in each sliding sheet groove.
According to the sliding vane for the compressor and the compressor with the sliding vane, the weight-reducing hole is formed in the sliding vane main body, so that the gravity center of the sliding vane moves downwards, the distance from the gravity center of the sliding vane to the lower flange can be reduced, namely, the comprehensive moment is reduced, and the inclination of the sliding vane in the working process is improved. Meanwhile, the weight of the sliding sheet can be reduced, so that the friction force between the sliding sheet and the lower flange is reduced, and the reduction of the power consumption of the compressor is facilitated. Meanwhile, the contact force between the sliding piece head and the inner wall surface of the bearing inner ring can be reduced, so that the friction power consumption of the position is reduced, and the heat productivity is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a sliding vane of a compressor with inward sliding movement and inclination in the prior art;
FIG. 2 is a schematic diagram of a sliding vane tilting outward sliding motion of a compressor in the prior art;
FIG. 3 is a schematic view of the structure of a sliding vane for a compressor according to the present invention;
FIG. 4 is a schematic perspective view of a sliding vane for a first compressor according to the present invention;
FIG. 5 is a schematic front view of a sliding vane for a first compressor according to the present invention;
FIG. 6 is a schematic perspective view of a sliding vane for a second compressor according to the present invention;
FIG. 7 is a schematic front view of a sliding vane for a second compressor according to the present invention;
FIG. 8 is a schematic perspective view of a sliding vane for a third compressor according to the present invention;
FIG. 9 is a schematic front view of a vane for a third compressor according to the present invention;
fig. 10 is a schematic view of a structure of a compressor according to the present invention;
FIG. 11 is a top view at a vane of the compressor according to the present invention;
fig. 12 is a schematic view of a structure at a main shaft of a compressor according to the present invention.
Description of reference numerals:
1', prior art slip sheet; 10. a slider body; 11. lightening holes; 12. a first sidewall surface; 13. a second sidewall surface; 14. a top wall surface; 20. a bearing; 21. an eccentric roller; 211. a slide groove; 212. a back pressure chamber; 22. a main shaft; 221. a main oil gallery; 222. a branch oil duct; 24. an upper flange; 25. a rotor; 26. a stator; 27. an exhaust pipe; 28. an upper cover body; 29. a liquid collecting tank; 30. a housing; 31. a lower cover body; 32. mounting a plate; 33. an oil pump; 34. a lower cover plate; 35. and a lower flange.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 3 to 9, according to the embodiment of the present invention, a vane for a compressor includes a vane body 10, and a lightening hole 11 is provided in the vane body 10, and the lightening hole 11 is located at a position above the center of gravity of the vane body 10. Some materials are dug in the middle of the existing sliding piece to form the lightening hole 11, so that the gravity center of the sliding piece moves downwards, the distance from the gravity center of the sliding piece to the lower flange 35 can be reduced, namely, the comprehensive moment is reduced, and the inclination of the sliding piece in the working process is improved to some extent. Meanwhile, the weight of the sliding vane can be reduced, so that the friction force between the sliding vane and the lower flange 35 is reduced, and the reduction of the power consumption of the compressor is facilitated. Meanwhile, the contact force between the sliding sheet head and the inner wall surface of the inner ring of the bearing 20 can be reduced, so that the friction power consumption at the position is reduced, and the heat productivity is reduced.
As shown in FIGS. 1 and 2, typically the slider is a regular rectangle, with the center of gravity (the cross-point of the dashed line in the figure) of the slider substantially coincident with the geometric center. The lightening hole 11 is a part cut out from the existing slip sheet, and when the material is cut out, the gravity center position of the slip sheet is shifted downwards by a first distance h from the geometric center, as shown in fig. 3. This shifts the center of gravity of the slip sheet downward, closer to the lower flange.
As shown in fig. 4 and 5, the lightening hole 11 is formed by inwardly recessing the first side wall surface 12 of the slider body 10. The first side wall 12 of the vane body 10 is a wall surface that contacts the bearing 20 of the compressor. The lightening hole 11 formed in this way does not damage the front side and the rear side of the sliding vane main body 10, thereby ensuring the sealing performance and the reliable operation of the compressor.
The structure, shape, etc. of the lightening holes 11 may be determined as desired, for example, as shown in fig. 4 and 5, the lightening holes 11 are rectangular holes. The lightening holes 11 are triangular holes as shown in fig. 6 and 7. That is, the weight-reduction hole 11 has a triangular shape in a cross section perpendicular to the width direction of the slider body 10. Of course, the lightening holes 11 may be round holes or holes of other shapes.
As shown in fig. 8 and 9, the lightening hole 11 may be formed to be recessed inward along the second side wall surface 13 of the slider body 10 and penetrate the top wall surface 14 of the slider body 10. This structure can make the center of gravity of the slider body 10 shift down by adding a part of the material to the second side wall 13 of the original slider body 10 to form a structure similar to the lightening hole 11. The center of gravity can be moved downwards by adding materials to the lower half part of the sliding sheet main body 10, and the beneficial effect of downward movement of the center of gravity can be achieved, but the friction force between the sliding sheet and the end face of the lower flange 35 cannot be reduced by the structure.
According to another aspect of the present invention, there is provided a compressor, which includes a bearing 20 and an eccentric roller 21 disposed in the bearing 20, wherein a vane slot 211 is disposed on the eccentric roller 21, and a vane is disposed in the vane slot 211 and is the above-mentioned vane.
The sliding sheet can reduce the possibility that the sliding sheet moves and inclines in the sliding sheet groove 211, and avoid scratching the upper flange 24 and the lower flange 35. The first side wall surface 12 of the vane body 10 of the vane is in contact with the inner wall surface of the bearing 20. The lightening holes 11 can reduce the weight of the sliding vane and reduce the friction force between the sliding vane and the lower flange 35 during reciprocating motion, thereby reducing power consumption and heat productivity. The centrifugal force of the sliding sheet can be reduced by reducing the weight of the sliding sheet, and the contact force between the head part of the sliding sheet and the inner wall surface of the inner ring of the needle bearing can be reduced under the condition that the pressure difference between the head part and the tail part of the sliding sheet is not changed, so that the friction power consumption of the position is reduced, and the heat productivity is reduced.
As shown in fig. 10, the compressor further includes a casing 30, an upper cover 28 provided at an upper end of the casing 30, and a lower cover 31 provided at a lower end of the casing 30. One side of the shell 30 is provided with a liquid collecting tank 29, and the liquid collecting tank 29 is communicated with the inside of the shell 30 through a connecting pipe. The bottom of the lower cover 31 is provided with a mounting plate 32.
The compressor is a vertical compressor. The compressor mainly comprises a main shaft 22, and an oil pump 33 is fixedly arranged at the lower end of the main shaft 22. The main shaft 22 is sleeved with a lower cover plate 34, and the lower cover plate 34 is positioned above the oil pump 33. The lower flange 35 is provided on the lower cover plate 34. The upper flange 24 is spaced from the lower flange 35 and fits over the main shaft 22. An eccentric roller 21 is provided between the upper flange 24 and the lower flange 35. The eccentric roller 21 is sleeved outside the main shaft 22, and can be integrally formed with the main shaft 22 or fixedly connected after being separately processed. The bearing 20 is provided outside the eccentric roller 21. The bearing 20 may be a needle bearing or other bearings.
The rotor 25 is provided on the upper portion of the main shaft 22. A stator 26 is provided in the housing 30 at a position corresponding to the rotor 25. The top of the housing 30 is provided with an exhaust pipe 27.
As shown in fig. 11, the plurality of vane grooves 211 are provided at intervals in the circumferential direction of the eccentric roller 21, and one vane is provided in each vane groove 211. Specifically, the number of the slide grooves 211 is three. A back pressure chamber 212 is formed between a second side wall surface 13 of the slide sheet opposite to the first side wall surface 12 and the groove bottom of the slide sheet groove 211. The back pressure chamber 212 communicates with the oil pump 33. Specifically, the main oil passage 221 and a branch oil passage 222 communicating with the main oil passage 221 are provided on the main shaft 22, the branch oil passage 222 communicates with the vane groove 211, and the oil pump 33 is provided at the bottom end of the main shaft 22 and communicates with the main oil passage 221 of the main shaft 22.
As shown in fig. 12, a gap δ is provided between the upper end surface of the main shaft 22 and the upper flange 24 of the compressor, and the back pressure chamber 212 communicates with the branch oil passage 222 of the main shaft 22 through the gap δ. The arrows in the figure show the oil and gas transmission channels.
When the compressor is running, the main shaft 22 is driven by the motor to rotate, the sliding vane extends out from the sliding vane groove 211 under the action of centrifugal force, and the head of the sliding vane contacts with the inner wall surface of the inner ring of the bearing 20 and drives the inner ring to rotate. Along with the smooth operation of compressor, the gleitbretter begins to make reciprocating motion in gleitbretter groove 211, and 3 gleitbretters divide into 3 independent cavities with the bearing inner circle whole crescent moon chamber, and these 3 cavities are cyclic expansion, shrink to realize breathing in, the exhaust of compressor.
The vane body 10 and the vane groove 211 form a closed space, that is, a vane back pressure chamber 212, and the number of the vane back pressure chambers 212 is three, and is periodically enlarged and reduced with the operation of the compressor.
The oil pump 33 is immersed in an oil pool at the bottom of the compressor, the main shaft 22 rotates to drive the oil pump 33 to rotate, the oil pump 33 is a positive displacement pump, under the action of the oil pump 33, oil enters a main oil channel 221 of the main shaft 22 through the oil pool, enters a back pressure cavity 212 of a slip sheet through a gap delta between the upper flange 24 and the upper end face of the main shaft 22 through a branch oil channel 222 of the main shaft 22, oil pressure is applied to the tail of the slip sheet for the exhaust pressure of the compressor, the head of the slip sheet is tightly attached to the inner wall face of a needle bearing, and a crescent cavity is divided into three.
During the movement of the compressor, the sliding vane and the sliding vane slot 211 form a closed space, which is called a sliding vane back pressure cavity 212, and the number of the sliding vane back pressure cavities 212 is also three, and the sliding vane back pressure cavities are periodically enlarged and reduced along with the operation of the compressor.
In order to ensure smooth movement of the slider in the slider groove 211, the height of the slider is smaller than that of the needle bearing 20, and the lower end surface of the slider is in contact with the lower flange 35 by gravity. As shown in fig. 3, since the pressure of the trailing portion of the vane is derived from the oil pressure F of the vane back pressure chamber 212, the frictional force between the vane and the lower flange 35 is F, and since the needle roller bearing 20 has a greater height than the vane, the upper end surface of the vane and the upper flange are not in contact with each other but have a certain gap δ. Therefore, the slide plate is likely to be tilted by the oil pressure F, and if a portion of the material is removed in the upper half portion of the slide plate, the center of gravity of the slide plate is moved downward by a first distance h, so that the possibility of the slide plate being tilted in the slide plate groove 211 is further reduced, facilitating the reciprocating operation of the slide plate.
The lower terminal surface of gleitbretter contacts with the up end of lower flange 35, and the reciprocating motion of gleitbretter in the gleitbretter groove 211 will produce frictional force with the up end of lower flange 35, and the great gleitbretter of weight will produce great consumption, digs some materials and will make the weight of gleitbretter reduce, is favorable to reducing the consumption of compressor.
In addition, the head part of the sliding vane is the pressure F1 of the compression cavity, the tail part of the sliding vane is the pressure F of the sliding vane back pressure cavity 212, the head part of the sliding vane is tightly attached to the inner wall surface of the inner ring of the needle bearing 20 under the action of the pressure difference and the centrifugal force, the weight reduction of the sliding vane can reduce the centrifugal force, so that the contact force between the head part of the sliding vane and the inner wall surface of the inner ring of the needle bearing is reduced, and the friction power consumption is reduced and the heating value is reduced.
The sliding vane for the compressor and the compressor with the sliding vane have the following technical effects:
digging a part of materials at the middle upper part of the sliding sheet to achieve the purposes of downward movement of the gravity center of the sliding sheet and weight reduction, thereby reducing the possibility of movement and inclination of the sliding sheet in the sliding sheet groove and avoiding scratching of an upper flange and a lower flange; the friction force between the sliding sheet and the lower flange during reciprocating motion is reduced, so that the power consumption and the heat productivity are reduced; the centrifugal force of the sliding sheet can be reduced by reducing the weight of the sliding sheet, and the contact force between the head part of the sliding sheet and the inner wall surface of the inner ring of the needle bearing can be reduced under the condition that the pressure difference between the head part and the tail part of the sliding sheet is not changed, so that the friction power consumption of the position is reduced, and the heat productivity is reduced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The sliding vane for the compressor is characterized by comprising a sliding vane main body (10), wherein a lightening hole (11) is formed in the sliding vane main body (10), and the lightening hole (11) is located above the gravity center of the sliding vane main body (10); the lightening hole (11) is formed by inwards recessing a first side wall surface (12) of the slide sheet main body (10); the first side wall surface (12) of the slide sheet main body (10) is a wall surface contacted with a bearing (20) of the compressor; the lightening holes (11) are rectangular holes or triangular holes; the bearing of the compressor is located on the inner circumferential surface of the cylinder.
2. A compressor, characterized in that the compressor comprises a bearing (20) and an eccentric roller (21) arranged in the bearing (20), a slide groove (211) is arranged on the eccentric roller (21), a slide is arranged in the slide groove (211), and the slide is the slide of claim 1;
the sliding piece grooves (211) are arranged at intervals along the circumferential direction of the eccentric roller (21), and one sliding piece is arranged in each sliding piece groove (211).
3. The compressor of claim 2, wherein a first side wall surface (12) of a vane body (10) of the vane is in contact with an inner wall surface of the bearing (20).
4. The compressor of claim 2, further comprising:
the eccentric roller (21) is sleeved outside the main shaft (22), a main oil duct (221) and a branch oil duct (222) communicated with the main oil duct (221) are arranged on the main shaft (22), the branch oil duct (222) is communicated with the sliding piece groove (211), and a back pressure cavity (212) is formed between a second side wall surface (13) of the sliding piece, opposite to the first side wall surface (12), and the groove bottom of the sliding piece groove (211);
the oil pump (33), the oil pump (33) sets up in the bottom of main shaft (22), and with main oil gallery (221) intercommunication of main shaft (22).
5. The compressor as claimed in claim 4, wherein a gap δ is provided between an upper end surface of the eccentric roller (21) and an upper flange (24) of the compressor, and the back pressure chamber (212) communicates with a branch oil gallery (222) of the main shaft (22) through the gap δ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906776.9A CN106321443B (en) | 2016-10-17 | 2016-10-17 | Sliding vane for compressor and compressor with sliding vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906776.9A CN106321443B (en) | 2016-10-17 | 2016-10-17 | Sliding vane for compressor and compressor with sliding vane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106321443A CN106321443A (en) | 2017-01-11 |
| CN106321443B true CN106321443B (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610906776.9A Active CN106321443B (en) | 2016-10-17 | 2016-10-17 | Sliding vane for compressor and compressor with sliding vane |
Country Status (1)
| Country | Link |
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| CN (1) | CN106321443B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737065B (en) * | 2019-02-27 | 2024-04-16 | 珠海格力电器股份有限公司 | Pump body assembly, compressor and air conditioning equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203374488U (en) * | 2013-07-12 | 2014-01-01 | 广东美芝制冷设备有限公司 | Sliding vane of compressor |
| CN203548200U (en) * | 2013-10-16 | 2014-04-16 | 宁波圣龙汽车动力系统股份有限公司 | Vane of vane pump |
| CN105402125A (en) * | 2015-11-13 | 2016-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Slide vane compressor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60237190A (en) * | 1984-05-09 | 1985-11-26 | Hitachi Ltd | Rotary type compressor |
| JPS63201391A (en) * | 1987-02-16 | 1988-08-19 | Hitachi Ltd | Rotary enclosed type compressor |
| JP5366884B2 (en) * | 2010-05-21 | 2013-12-11 | 三菱電機株式会社 | Vane rotary compressor |
| CN201874818U (en) * | 2010-11-23 | 2011-06-22 | 广东美芝制冷设备有限公司 | Rotary compressor |
| JP2012197725A (en) * | 2011-03-22 | 2012-10-18 | Nippon Soken Inc | Rolling piston compressor, and vane |
| CN202520558U (en) * | 2012-03-23 | 2012-11-07 | 广东美芝制冷设备有限公司 | Slip sheet structure of rotary compressor |
| CN206617326U (en) * | 2016-10-17 | 2017-11-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor slide plate and the compressor with it |
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2016
- 2016-10-17 CN CN201610906776.9A patent/CN106321443B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203374488U (en) * | 2013-07-12 | 2014-01-01 | 广东美芝制冷设备有限公司 | Sliding vane of compressor |
| CN203548200U (en) * | 2013-10-16 | 2014-04-16 | 宁波圣龙汽车动力系统股份有限公司 | Vane of vane pump |
| CN105402125A (en) * | 2015-11-13 | 2016-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Slide vane compressor |
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| CN106321443A (en) | 2017-01-11 |
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Effective date of registration: 20191211 Address after: 519000 No. six Jinji Road West, Zhuhai, Guangdong Co-patentee after: Zhuhai Gree Energy Saving & Refrigerating Technology Resarch Center Co., Ltd. Patentee after: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI Address before: 519070 Guangdong city of Zhuhai province Rooster Hill Road No. 789 building Patentee before: Zhuhai Gree Energy Saving & Refrigerating Technology Resarch Center Co., Ltd. |
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