CN2771493Y - Piston ring overlap piston - Google Patents
Piston ring overlap piston Download PDFInfo
- Publication number
- CN2771493Y CN2771493Y CN 200520080260 CN200520080260U CN2771493Y CN 2771493 Y CN2771493 Y CN 2771493Y CN 200520080260 CN200520080260 CN 200520080260 CN 200520080260 U CN200520080260 U CN 200520080260U CN 2771493 Y CN2771493 Y CN 2771493Y
- Authority
- CN
- China
- Prior art keywords
- piston ring
- piston
- overlapping
- ring groove
- 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 provides a piston ring overlapping piston, which comprises a piston, piston rings and piston ring grooves. The piston ring overlapping piston is characterized in that the piston ring grooves of the same circle are arranged on different horizontal surfaces, and a continuous circle of the piston ring groove forms a rising type; the piston ring groove is provided with a segment of overlapping position, and both end parts of the piston ring are overlapped together up and down; the piston ring grooves are improved into a spiral rising type, so that the piston ring grooves are positioned on different horizontal surfaces. Therefore, the end parts of the piston ring can be overlapped together up and down. Thereby, the no opening gap exists on the piston rings, the gas leakage is reduced and the leakage of fuel gas reaches the minimum degree.
Description
Technical field
The utility model relates to the piston in the internal-combustion engine, specifically to the piston ring of piston and the improvement of piston ring groove structure.
Background technique
It is to keep piston with effectively sealing between cylinder wall that piston ring has first effect, makes the leakage of combustion gas reach minimum degree.Its two, be the high heat load that piston head is suffered, pass to cylinder wall by piston ring, play the cooling heat dissipation effect.Piston ring in sealing and heat conduction two greatly on, seal action particularly is sought after, if seal badly, dispelling the heat has also just lost meaning.The existing piston ring roughly has following several: rectangular cross-section ring, taper-face ring, keystone ring and bucket face shape ring.Though the structure of above-mentioned piston ring has nothing in common with each other, their annular groove all has a common ground, and promptly same circle annular groove integral body is in same horizontal plane.There is opened gap in piston ring end joint in same circle annular groove, and opened gap should guarantee that mainly piston ring and cylinder sleeve do not interfere when the difference of thermal expansion is arranged, more little as the gap, and this partly leaks gas just few more, and is more favourable to sealing.But, exist air leakage to some extent because piston ring all exists opened gap.Along with the prolongation of service time, the wearing and tearing of parts such as piston ring and cylinder, leak volume can increase thereupon, and then causes fuel consumption to increase, burning machine oil, and caused environmental pollution.
Summary of the invention
The utility model provides a kind of piston ring overlapping piston, and it can solve the problem that opened gap place gas leakage that prior art exists is brought.
In order to reach the purpose that solves the problems of the technologies described above, the technical solution of the utility model is, a kind of piston ring overlapping piston, it comprises piston, piston ring and piston ring groove, it is characterized in that: same circle piston ring groove is located at different horizontal planes, and continuous one the circle piston ring groove be ascending manner, piston ring groove has one section overlapping, piston ring shape and piston ring groove shape are suitable, and the two end part of piston ring are stacked up and down.
In the utility model, also have following technical characteristics: same circle piston ring groove is spiral.
In the utility model, also have following technical characteristics: the two end part of the piston ring lap of closed assembly up and down are 2～10mm.
The utility model compared with prior art has the following advantages and good effect: 1, piston ring groove is improved the spiral ascending manner, make piston ring groove be in different horizontal planes, thereby the piston ring end can be stacked up and down, thereby make piston ring no longer include opened gap, air leakage significantly reduces, and makes the leakage of combustion gas reach minimum degree.2, because air leakage for reducing, has reached fuel-economizing, eliminated the phenomenon of burning machine oil, blowdown reduces, and has guaranteed that power does not descend.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in detail.
Fig. 1 is the stereogram of the utility model piston.
1, piston; 1-1, piston ring; 1-1-1, piston ring upper end portion; 1-1-2, piston ring underpart; 1-2, piston ring groove; 1-2-1, upper piston annular groove; 1-2-2, lower piston annular groove.
Embodiment
Referring to Fig. 1, piston of the present utility model is used mark 1 chief representative.In order to eliminate the gas leakage problem that piston ring gap brings, design concept of the present utility model is, same circle piston ring groove 1-2 is modified into not on same horizontal plane, be that same circle piston ring groove 1-2 is ascending manner, in the present embodiment, adopt spirally, thereby form piston ring groove 1-2 one section overlapping is arranged, i.e. upper piston annular groove 1-2-1 and lower piston annular groove 1-2-2.Piston ring 1-1 shape and piston ring groove 1-2 shape are suitable, and the upper end portion 1-1-1 and the underpart 1-1-2 that are contained in the piston ring 1-1 in the piston ring groove 1-2 are stacked up and down.In the present embodiment, the overlap region is 6mm.
Because piston ring upper end portion 1-1-1 and overlapping being fitted together of piston ring underpart 1-1-2 have been eliminated opened gap, make along the gas leakage of opened gap and are eliminated substantially, thereby improved combustion efficiency, have reduced fuel consumption, have improved exhaust quality.
Certainly, the utility model is not limited to above-mentioned giving an example, and in essence intention scope of the present utility model, the utility model also has many variations, remodeling, interpolation or replacement, all should belong to protection domain of the present utility model.
Claims (3)
1, a kind of piston ring overlapping piston, it comprises piston, piston ring and piston ring groove, it is characterized in that: same circle piston ring groove is located at different horizontal planes, and a continuous circle piston ring groove is ascending manner, piston ring groove has one section overlapping, piston ring shape and piston ring groove shape are suitable, and the two end part of piston ring are stacked up and down.
2, piston ring overlapping piston according to claim 1, it is characterized in that: same circle piston ring groove is spiral.
3, piston ring overlapping piston according to claim 1 and 2 is characterized in that: the two end part of the piston ring lap of closed assembly up and down are 2～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520080260 CN2771493Y (en) | 2005-01-21 | 2005-01-21 | Piston ring overlap piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520080260 CN2771493Y (en) | 2005-01-21 | 2005-01-21 | Piston ring overlap piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2771493Y true CN2771493Y (en) | 2006-04-12 |
Family
ID=36705281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520080260 Expired - Fee Related CN2771493Y (en) | 2005-01-21 | 2005-01-21 | Piston ring overlap piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2771493Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194481A (en) * | 2016-07-10 | 2016-12-07 | 李陶胜 | A kind of S-shaped folds the internal combustion engine of mouth formula annular groove |
-
2005
- 2005-01-21 CN CN 200520080260 patent/CN2771493Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194481A (en) * | 2016-07-10 | 2016-12-07 | 李陶胜 | A kind of S-shaped folds the internal combustion engine of mouth formula annular groove |
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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: 20060412 |