CN201496230U - piston for refrigeration compressor - Google Patents
piston for refrigeration compressor Download PDFInfo
- Publication number
- CN201496230U CN201496230U CN2009201956322U CN200920195632U CN201496230U CN 201496230 U CN201496230 U CN 201496230U CN 2009201956322 U CN2009201956322 U CN 2009201956322U CN 200920195632 U CN200920195632 U CN 200920195632U CN 201496230 U CN201496230 U CN 201496230U
- Authority
- CN
- China
- Prior art keywords
- piston
- refrigeration compressor
- cavity
- connecting rod
- piston cavity
- 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
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
Images
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Compressor (AREA)
Abstract
The utility model relates to a piston used for a refrigeration compressor, which includes a piston body (1), a piston cavity (2) and a pin hole (3), and is characterized in that the long side surface of the piston cavity (2) is an inner-concave arc surface. The piston for the refrigeration compressor, which adopts the structure, has the advantages as follows: the long side surface of the piston cavity (2) is the inner concave arc surface, so that when the piston works, contact area between the end surface of a connecting rod and the inner cavity of the piston is reduced, the friction and the collision between the end surface of the connecting rod and the inner cavity of the piston are reduced, and the noise of the compressor operation is lowered.
Description
Technical field
The utility model relates to a kind of piston, specifically is a kind of refrigeration compressor piston.
Background technique
Piston is an important part of refrigeration compressor.The piston of prior art comprises piston body, piston cavity and pin-and-hole, it cooperates with connecting rod by bearing pin and forms the refrigeration compressor piston apparatus, the axle of described connecting rod by bearing pin and pin-and-hole cooperates and is installed in the piston cavity, and the long limit face of described piston cavity is for facing directly.There is following defective in the piston of above structure: because the long limit face of described piston cavity is for facing directly, so when pistons work moves, the long limit face area of contact of connecting rod end face and piston cavity is bigger, and frictional impact is also more frequent each other, thereby causes in the compressor operating process noise bigger.
The model utility content
The technical problems to be solved in the utility model is, overcomes existing technological deficiency, and a kind of refrigeration compressor piston that reduces the compressor operating noise is provided.
Technical solution of the present utility model is, a kind of refrigeration compressor piston is provided, and comprises piston body, piston cavity and pin-and-hole, and the long limit face of described piston cavity is interior concaved circular cambered surface.
After adopting above structure, the utility model refrigeration compressor with piston compared with prior art, have the following advantages: because the long limit face of described piston cavity is interior concaved circular cambered surface, so when pistons work moves, the long limit face area of contact of connecting rod end face and piston cavity reduces, effectively reduced frictional impact each other, noise reduces in the compressor operating process thereby make.
Description of drawings
Fig. 1 is the side view of the refrigeration compressor of prior art with piston.
Fig. 2 is the front view of the refrigeration compressor of prior art with piston.
Fig. 3 is the front view of the utility model refrigeration compressor with piston.
Fig. 4 is the side view that the utility model refrigeration compressor cooperates with bearing pin, connecting rod with piston.
Fig. 5 is the front view that the utility model refrigeration compressor cooperates with bearing pin, connecting rod with piston.
Shown in the figure: among the prior art figure 1 ', piston body, 2 ', piston cavity, 2.1 ' long limit face, 3 ' pin-and-hole, among the utility model figure 1, piston body, 2, piston cavity, 2.1, long limit face, 3, pin-and-hole, 4, connecting rod.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Be prior art refrigeration compressor piston as shown in Figure 1 and Figure 2, it comprise piston body 1 ', piston cavity 2 ' and pin-and-hole 3 ', it cooperates with connecting rod by bearing pin and forms the refrigeration compressor piston apparatus, described connecting rod by bearing pin and pin-and-hole 3 ' axle cooperate be installed on piston cavity 2 ' in, described piston cavity 2 ' long limit face 2.1 ' for facing directly.
As shown in Figure 3, the utility model refrigeration compressor piston comprises piston body 1, piston cavity 2 and pin-and-hole 3, and the long limit face 2.1 of described piston cavity 2 is interior concaved circular cambered surface, and promptly two long limit faces 2.1 are recessed relatively arc surface.
As Fig. 4, shown in Figure 5, working principle of the present utility model is that described refrigeration compressor cooperates composition refrigeration compressor piston apparatus with piston by bearing pin with connecting rod 4, described connecting rod 4 was installed in the piston cavity 2 by bearing pin and cooperating of pin-and-hole 3, because the long limit face 2.1 of described piston cavity 2 is interior concaved circular cambered surface, long limit face 2.1 area of contact of connecting rod 4 end faces and piston cavity 2 reduce when pistons work moves, effectively reduced frictional impact each other, noise reduces in the compressor operating process thereby make.
Claims (1)
1. refrigeration compressor piston, it comprises piston body (1), piston cavity (2) and pin-and-hole (3), it is characterized in that: the long limit face (2.1) of described piston cavity (2) is interior concaved circular cambered surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009201956322U CN201496230U (en) | 2009-09-03 | 2009-09-03 | piston for refrigeration compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009201956322U CN201496230U (en) | 2009-09-03 | 2009-09-03 | piston for refrigeration compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201496230U true CN201496230U (en) | 2010-06-02 |
Family
ID=42439438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009201956322U Expired - Fee Related CN201496230U (en) | 2009-09-03 | 2009-09-03 | piston for refrigeration compressor |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201496230U (en) |
-
2009
- 2009-09-03 CN CN2009201956322U patent/CN201496230U/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Ningjiang Powder-Metallurgy Co., Ltd. Assignor: Xu Xinguo Contract record no.: 2011330000364 Denomination of utility model: Piston for refrigeration compressor Granted publication date: 20100602 License type: Exclusive License Record date: 20110428 |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20120903 |