CN201367947Y - Piston ring - Google Patents
Piston ring Download PDFInfo
- Publication number
- CN201367947Y CN201367947Y CNU2009201017697U CN200920101769U CN201367947Y CN 201367947 Y CN201367947 Y CN 201367947Y CN U2009201017697 U CNU2009201017697 U CN U2009201017697U CN 200920101769 U CN200920101769 U CN 200920101769U CN 201367947 Y CN201367947 Y CN 201367947Y
- Authority
- CN
- China
- Prior art keywords
- piston ring
- opening
- utility
- piston
- annular 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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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model provides a piston ring which comprises an annular main body, and the annular main body is provided with an opening. The piston ring is characterized in that the shapes of two ends of the opening of the annular main body match with each other and the surface of the opening is stepped. Provided with the stepped opening, the piston ring has better sealing performance and wear resistance than the existing piston rings with a plane opening. The piston ring can retard air leakage caused by abrasion and is unnecessary to be replaced frequently.
Description
Technical field
The utility model relates to a kind of piston ring.
Background technique
In the structure of all gasoline and diesel engine substantially all is to adopt an oil cylinder, and in-oil cylinder gasoline or diesel oil are with after gas mixes, and driven plunger is moved with outputting power.Piston must reach hermetic seal in oil cylinder, in case gas leakage then the power of loss greatly, so piston face is provided with the piston ring that is used to seal, general structure is: piston face is provided with a circle and caves in, and is embedded in piston ring in depression.When piston moved in oil cylinder, piston ring constantly and cylinder wall friction and cause loss.Because the piston ring of existing piston is to adopt ring-type, on annular body, disconnect, as shown in Figure 1, gap forms a plane, is socketed in the depression in use.Be easy to like this cause and leak gas at jointing.
The model utility content
At defective that exists in the prior art and deficiency, the purpose of this utility model is to propose a kind of piston ring, and the existing oil cylinder piston sealing effect of can comparing is better, can avoid frequently more rering simultaneously.
In order to achieve the above object, the utility model proposes a kind of piston ring, described piston ring has annular body, and described annular body is provided with opening; It is characterized in that the suitable and open surfaces of the opening two ends shape of described annular body becomes stepped.
The utility model proposes a kind of piston ring, described piston ring has annular body, and described annular body is provided with opening; It is characterized in that the suitable and open surfaces of the opening two ends shape of described annular body becomes stepped.The piston ring that the utility model proposes can have better sealing than existing plane opening by stepped opening is set, and resistance to wears more, can postpone because the gas leakage that wearing and tearing cause does not need frequently more rering.
Description of drawings
Fig. 1 is the structural representation of existing piston ring;
Fig. 2 is the structural representation of the piston ring that the utility model proposes.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
The utility model preferred embodiment as shown in Figure 2, described piston ring has annular body, described annular body is provided with opening; Suitable and the open surfaces of the opening two ends shape of described annular body becomes stepped.
Certainly; the utility model also can have other embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; the person of ordinary skill in the field works as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of claim of the present utility model.
Claims (1)
1, a kind of piston ring, described piston ring has annular body, and described annular body is provided with opening; It is characterized in that the suitable and open surfaces of the opening two ends shape of described annular body becomes stepped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201017697U CN201367947Y (en) | 2009-03-09 | 2009-03-09 | Piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201017697U CN201367947Y (en) | 2009-03-09 | 2009-03-09 | Piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201367947Y true CN201367947Y (en) | 2009-12-23 |
Family
ID=41486840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201017697U Expired - Fee Related CN201367947Y (en) | 2009-03-09 | 2009-03-09 | Piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201367947Y (en) |
-
2009
- 2009-03-09 CN CNU2009201017697U patent/CN201367947Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20120309 |