CN200961530Y - Diesel engine piston with decompression step - Google Patents
Diesel engine piston with decompression step Download PDFInfo
- Publication number
- CN200961530Y CN200961530Y CN 200620126839 CN200620126839U CN200961530Y CN 200961530 Y CN200961530 Y CN 200961530Y CN 200620126839 CN200620126839 CN 200620126839 CN 200620126839 U CN200620126839 U CN 200620126839U CN 200961530 Y CN200961530 Y CN 200961530Y
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- CN
- China
- Prior art keywords
- oil
- diesel engine
- ring groove
- piston
- 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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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
According to the problem that the oil feed-back of the present diesel engine piston is not fluent, the utility model provides a homogeneously distributed diesel engine piston which has a decompression step and is beneficial to the engine oil to be quickly decompressed, comprising a piston body (1), wherein the head of the piston body (1) is provided with two ring gas loop grooves (2) along the circumference of the piston body and an oil ring groove (3), and the oil ring groove (3) is communicated with a vertical oil feed-back hole (4). The utility model is characterized in that the piston body (1) between the oil ring groove (3) and one ring gas loop groove (2) is equipped with a ring step (5). The utility model makes the engine oil which is near the oil ring and scraped by one gas loop to be quickly decompressed and homogeneously distributed, which can largely reduce the wastage of the engine oil.
Description
Technical field
The utility model relates to a kind of diesel engine, especially a kind of diesel engine piston, specifically a kind of diesel engine piston that has the step that reduces pressure.
Background technique
At present, the structure of diesel engine piston mostly as shown in Figure 1, be provided with two annular air ring grooves and an annular oil ring groove in the piston head position, the oil ring groove communicates with spill port, and one of them spill port is a radial hole, and another spill port is inclined hole radially, during reciprocating motion of the pistons, the machine oil that piston ring scrapes off is got back to the diesel engine inner chamber by spill port, and recycling is to reduce the consumption of machine oil.But because machine oil has certain viscosity and pressure is bigger, thereby causes oil return not smooth, oil consumption is bigger.
Summary of the invention
The purpose of this utility model is at the not smooth problem of existing diesel engine piston oil return, designs a kind of decompression step that has, and helps the machine oil explosive decompression, the equally distributed diesel engine piston that has the step that reduces pressure.
The technical solution of the utility model is:
A kind of diesel engine piston that has the step that reduces pressure, comprise piston body 1, head at described piston body 1 is provided with twice along piston body circumferential annular air ring groove 2 and an oil ring groove 3, oil ring groove 3 communicates with spill port 4 radially, it is characterized in that the piston body 1 between an oil ring groove 3 and the compression ring groove 2 is provided with a ring-shaped step 5.
The utlity model has following advantage:
Ring-shaped step of the present utility model helps the machine oil explosive decompression that one compression ring near oil ring scrapes, and evenly distributes, and oil return rapidly can reduce the machine oil loss greatly.
Description of drawings
Fig. 1 is the structural representation of this existing piston head.
Fig. 2 is the structural representation of piston crown of the present utility model.
Embodiment
Following structure drawings and Examples are further described the utility model.
As shown in Figure 2.
A kind of diesel engine piston that has the step that reduces pressure, its cylinder bore is the 95-130 millimeter, it comprises piston body 1, head at described piston body 1 is provided with twice along piston body circumferential annular air ring groove 2 and an oil ring groove 3, oil ring groove 3 communicates with spill port 4 radially, piston body 1 between an oil ring groove 3 and the compression ring groove 2 is provided with the machine oil explosive decompression that a compression ring that helps close oil ring groove 3 scrapes, and can form the ring-shaped step 5 in a pressure buffer district.
It is all same as the prior art that all the other do not relate to part.
Claims (2)
1, a kind of diesel engine piston that has the step that reduces pressure, comprise piston body (1), head at described piston body (1) is provided with twice along piston body circumferential an annular air ring groove (2) and an oil ring groove (3), oil ring groove (3) communicates with spill port (4) radially, it is characterized in that the piston body (1) between an oil ring groove (3) and the compression ring groove (2) is provided with a ring-shaped step (5).
2, the diesel engine piston that has the step that reduces pressure according to claim 1, the cylinder bore that it is characterized in that described diesel engine is the 90-130 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620126839 CN200961530Y (en) | 2006-10-30 | 2006-10-30 | Diesel engine piston with decompression step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620126839 CN200961530Y (en) | 2006-10-30 | 2006-10-30 | Diesel engine piston with decompression step |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200961530Y true CN200961530Y (en) | 2007-10-17 |
Family
ID=38798044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620126839 Expired - Fee Related CN200961530Y (en) | 2006-10-30 | 2006-10-30 | Diesel engine piston with decompression step |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200961530Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533654A (en) * | 2014-11-28 | 2015-04-22 | 重庆小康工业集团股份有限公司 | Engine piston |
| CN106677916A (en) * | 2017-02-16 | 2017-05-17 | 无锡华源凯马发动机有限公司 | Low-emission non-road single-cylinder diesel engine piston structure |
-
2006
- 2006-10-30 CN CN 200620126839 patent/CN200961530Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533654A (en) * | 2014-11-28 | 2015-04-22 | 重庆小康工业集团股份有限公司 | Engine piston |
| CN106677916A (en) * | 2017-02-16 | 2017-05-17 | 无锡华源凯马发动机有限公司 | Low-emission non-road single-cylinder diesel engine piston structure |
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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: 20071017 Termination date: 20121030 |