CN201794748U - Piston of automobile air condition compressor - Google Patents
Piston of automobile air condition compressor Download PDFInfo
- Publication number
- CN201794748U CN201794748U CN201020531981XU CN201020531981U CN201794748U CN 201794748 U CN201794748 U CN 201794748U CN 201020531981X U CN201020531981X U CN 201020531981XU CN 201020531981 U CN201020531981 U CN 201020531981U CN 201794748 U CN201794748 U CN 201794748U
- Authority
- CN
- China
- Prior art keywords
- piston
- automobile air
- aluminum oxide
- oxide layer
- piston body
- 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.)
- Expired - Fee Related
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- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a piston of an automobile air condition compressor, comprising an aluminum alloy piston body; the piston body is cylindrical and has an opening in the middle; the cylindrical surface of the piston body is provided with an aluminum oxide layer; and the outer side of the aluminum oxide layer is provided with an anti-friction material layer. With the structure, the cylindrical surface of the piston body is provided with the aluminum oxide layer, the outer side of the aluminum oxide layer is provided with the anti-friction material layer, and the anti-friction material may be polytetrafluoroethylene (Telflon). The piston ring of the piston in the prior art can be eliminated so that the structure of the piston is simpler; moreover, since the aluminum oxide layer improves the surface hardness of the piston, the polytetrafluoroethylene has good abrasive resistance and compactness; the piston is in clearance fit with an air cylinder hole, and is sealed by an oil membrane, so that the piston has good air tightness and the movement resistance of the piston is reduced; therefore, the working efficiency and service life of the automobile air condition compressor are improved.
Description
Technical field
The utility model relates to a kind of internal motion spare of automobile air conditioner compressor, and the piston of a kind of automobile air conditioner compressor of more specifically saying so belongs to automobile air conditioner compressor manufacturing technology field.
Background technique
Existing automobile air conditioner compressor adopts the sloping plate type vehicle air condition compressor mostly, and piston two ends of sloping plate type vehicle air condition compressor are cylindrical shape, and the centre has opening.Two sides at opening are provided with ball-and-socket.Between the ball-and-socket of swash plate side and piston, connect by two hemispheric steel balls, the rotation of swash plate promotes piston by hemispheric steel ball and moves axially, compressor is to come pressurized gas by the high speed to-and-fro motion of piston in cylinder, therefore require to have good air-tightness between the casing wall of piston and cylinder, prior art is by being realized at piston two ends dress piston ring, but because the piston ring swelling is in casing bore, can produce surface friction drag during piston motion, increased the power consumpiton of compressor, friction simultaneously can produce heat, make piston ring distortion and enhance faster wear easily, and cause tightness bad, influenced the working efficiency and the working life of air condition compressor.
The model utility content
At above-mentioned situation, the problem that the utility model quasi-solution is determined provides that a kind of tightness is good, surface friction drag is little, the piston of a kind of automobile air conditioner compressor of long service life, thereby improves the working efficiency and the working life of automobile air conditioner compressor.
For achieving the above object, the utility model has adopted following technological scheme: a kind of piston of automobile air conditioner compressor, it comprises case aluminum alloy piston body, described piston body is that cylindrical shape and centre have opening, the periphery of described piston body has alumina layer, and the described alumina layer outside is provided with wear-resistant material layer.
Described high-abrasive material layer thickness is the 30-60 micron.Described wear-resistant material layer can be a polytetrafluoroethylene floor.Described alumina layer thickness is the 5-10 micron.
Adopt said structure, the piston of automobile air conditioner compressor of the present utility model, the periphery of described piston body has alumina layer, and the described alumina layer outside is provided with wear-resistant material layer, and high-abrasive material can be teflon (polytetrafluoroethylene).Can omit the piston ring on the prior art piston, make structure of piston simple; In addition, because alumina layer can improve the surface hardness of piston, teflon has good wear resistance and compactness, and with the casing bore Spielpassung, use oil film seal, make piston have good air-tightness, reduced the piston motion resistance again, thereby improve the working efficiency and the working life of automobile air conditioner compressor.
Description of drawings
Fig. 1 is the structure of piston schematic representation of the utility model automobile air conditioner compressor.
Among the figure: 1-piston body, 2-opening, 3-alumina layer, 4-wear-resistant material layer.
Embodiment
As shown in Figure 1, the piston of automobile air conditioner compressor of the present utility model, it comprises case aluminum alloy piston body 1, described piston body 1 has opening 2 for cylindrical shape and centre, the periphery of described piston body 1 has alumina layer 3, described alumina layer 3 outsides are provided with wear-resistant material layer 4, and described wear-resistant material layer 4 can be a polytetrafluoroethylene floor.Described wear-resistant material layer 4 thickness are the 30-60 micron.
Claims (4)
1. the piston of an automobile air conditioner compressor, it comprises case aluminum alloy piston body (1), described piston body (1) has opening (2) for cylindrical shape and centre, the periphery that it is characterized in that described piston body (1) has alumina layer (3), and described alumina layer (3) outside is provided with wear-resistant material layer (4).
2. the piston of automobile air conditioner compressor according to claim 1 is characterized in that described wear-resistant material layer (4) thickness is the 30-60 micron.
3. the piston of automobile air conditioner compressor according to claim 1 and 2 is characterized in that described wear-resistant material layer (4) is a polytetrafluoroethylene floor.
4. according to the piston of the described automobile air conditioner compressor of claim 1, it is characterized in that described alumina layer (3) thickness is the 5-10 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020531981XU CN201794748U (en) | 2010-09-16 | 2010-09-16 | Piston of automobile air condition compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020531981XU CN201794748U (en) | 2010-09-16 | 2010-09-16 | Piston of automobile air condition compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201794748U true CN201794748U (en) | 2011-04-13 |
Family
ID=43849657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020531981XU Expired - Fee Related CN201794748U (en) | 2010-09-16 | 2010-09-16 | Piston of automobile air condition compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201794748U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269149A (en) * | 2011-08-18 | 2011-12-07 | 芜湖欧宝机电有限公司 | Piston refrigerant compressor |
-
2010
- 2010-09-16 CN CN201020531981XU patent/CN201794748U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269149A (en) * | 2011-08-18 | 2011-12-07 | 芜湖欧宝机电有限公司 | Piston refrigerant compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20130916 |