CN2377356Y - Piston with multiple ring parallel seal structure - Google Patents
Piston with multiple ring parallel seal structure Download PDFInfo
- Publication number
- CN2377356Y CN2377356Y CN 99228335 CN99228335U CN2377356Y CN 2377356 Y CN2377356 Y CN 2377356Y CN 99228335 CN99228335 CN 99228335 CN 99228335 U CN99228335 U CN 99228335U CN 2377356 Y CN2377356 Y CN 2377356Y
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- CN
- China
- Prior art keywords
- piston
- parallel
- model
- utility
- ring groove
- 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 relates to a piston with a sealing structure that multiple rings are connected in parallel. The periphery of a column-shaped piston head is provided with a piston ring groove for containing opening piston rings. The utility model is characterized in that two or more than two piston rings are arranged in parallel in the same piston ring groove, and the openings of the piston rings are mutually misplaced. Owing to the sealing structure that multiple rings are connected in parallel and the openings are misplaced is adopted by the utility model, run leakage problem exists hardly, and sealing performance of a piston is enhanced. The sealing structure can be simplified thusly, friction resistance is reduced, efficiency is improved, and oil consumption is reduced.
Description
The utility model relates to the internal-combustion engine member.More particularly, especially a kind of piston that is applied in the internal-combustion engine.
Being applied in the piston in the internal-combustion engine in the prior art, all is the sealing configuration that adopts monocycle independently to be provided with, and just in same piston ring groove, correspondence is provided with an open type piston ring.This sealing configuration of all reciprocating engine all exists the race of opened gap to leak to some extent.To run leakage in order reducing, improve seal degree, to raise the efficiency, is the periphery at a piston head in the prior art, and oil and some roads compression ring together are set.The problem that this structural type is brought simultaneously is the increase of surface friction drag.
The purpose of this utility model is to avoid above-mentioned deficiency of the prior art, and a kind of pistons that have the many rings of having of the little advantage of good seal performance and surface friction drag sealing configuration in parallel simultaneously are provided.
The purpose of this utility model is achieved through the following technical solutions.
The utility model offers the piston ring groove in order to ccontaining opening piston ring in the periphery of its plunger piston head.
Structural feature of the present utility model is, in same piston ring groove, is arranged in parallel two of the opening mutual dislocation or two with upper piston ring.
Compared with the prior art, the utlity model has following advantage:
1, the utility model exists hardly and runs the leakage problem owing to adopt the sealing configuration of many ring parallel connections, opening dislocation, has greatly improved the sealability of piston.
2, the utility model only needs one oil ring can reach seal request with compression ring, and surface friction drag can reduce greatly, raises the efficiency, reduces oil consumption.
3, the utility model is simple in structure, easy to implement.
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model piston head structural representation.
By the following examples, in conjunction with the accompanying drawings the utility model is further described.
Referring to accompanying drawing,, offer piston ring groove 2,3 in order to ccontaining opening piston ring in the periphery of plunger piston head 1.In the present embodiment, in same piston ring groove, be arranged in parallel two of the opening mutual dislocation or two with upper piston ring 4,5.
As shown in the figure, present embodiment is in same piston ring groove, and what be arranged in parallel is two piston rings, comprises piston ring 4 and piston ring 5.In order to guarantee the reliability of work, the opening of two piston rings 4,5 180 degree that can misplace.
In the present embodiment, set piston ring groove comprises oil ring groove 2 and compression 3.As shown in the figure, the simplest structure setting is that one oil ring groove 2 is with compression 3.
Equally, the utility model also can adopt three rings or many rings structural type in parallel, and compression also can be more than one.
Claims (2)
1, the piston that has many rings sealing configuration in parallel, in the periphery of its plunger piston head (1), offer piston ring groove (2,3) in order to ccontaining opening piston ring, it is characterized in that, in same piston ring groove, be arranged in parallel two of the opening mutual dislocation or two with upper piston ring (4,5).
2, the piston with many rings sealing configuration in parallel according to claim 1 is characterized in that described piston ring groove comprises oil ring groove (2) and compression (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99228335 CN2377356Y (en) | 1999-05-11 | 1999-05-11 | Piston with multiple ring parallel seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99228335 CN2377356Y (en) | 1999-05-11 | 1999-05-11 | Piston with multiple ring parallel seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2377356Y true CN2377356Y (en) | 2000-05-10 |
Family
ID=34017737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99228335 Expired - Fee Related CN2377356Y (en) | 1999-05-11 | 1999-05-11 | Piston with multiple ring parallel seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2377356Y (en) |
-
1999
- 1999-05-11 CN CN 99228335 patent/CN2377356Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |