CN200955454Y - Engine piston having multiple slots and multiple oil-return holes at skirt part - Google Patents
Engine piston having multiple slots and multiple oil-return holes at skirt part Download PDFInfo
- Publication number
- CN200955454Y CN200955454Y CN 200620039408 CN200620039408U CN200955454Y CN 200955454 Y CN200955454 Y CN 200955454Y CN 200620039408 CN200620039408 CN 200620039408 CN 200620039408 U CN200620039408 U CN 200620039408U CN 200955454 Y CN200955454 Y CN 200955454Y
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- Prior art keywords
- piston
- skirt
- cylinder wall
- holes
- utility
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- 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 discloses an engine piston whose skirt has a plurality of grooves and oil return holes respectively. The utility model is realized by arranging a plurality of arc-shaped circular grooves on the shirt of a common piston and a plurality of through holes in each of one of the circular groove. A piston whose shirt is provided with the arc-shaped circular grooves and the through holes not only comply to the light weight optimizing principle in a piston designing but also reduces the contact area between the skirt and the wall of a cylinder and further reduces the fabrication resistance and increases the output power of the engine. Meanwhile, the through holes in the arc-shaped circular grooves allow a more complete oil return of lubricant for the cylinder wall, which improves the lubrication between the piston and the cylinder wall, reduces the machine oil combustion phenomenon and alleviates the discharge of harmful tail gases. Thus, the utility model has the advantages of large output power, better lubrication between the piston and the cylinder wall and more environment-friendly discharge.
Description
Technical field
The utility model relates to a kind of engine components, more particularly, and especially about the engine piston of the many spill ports of a kind of skirt section multiple-grooved.
Background technique
Present existing engine piston, its skirt section is basic cylinder for sealing except piston pin hole, main plaing a part led and dispels the heat, the skirt section is in a kind of sassafras state that rubs in when work for a long time with cylinder wall, in this case the size that how much often has influence on its power of skirt section and casing wall area of contact; Because area of contact is big more, the sassafras that rubs is big more, and output power is just little, and area of contact is more little, and the sassafras that rubs is more little, and output power is just big.The piston of this structure, piston skirt and the cylinder wall sassafras resistance that rubs is big, the oil return of cylinder wall lubrication oil is insufficient, exist after the motor operation regular period because of what " burn oil " occurred and emit the blue smoke phenomenon, consumption of lubricating oil causes piston and the unfavorable situation of cylinder wall lubrication greatly and indirectly after causing long-time running because of " burn oil " simultaneously, and the piston wear amount is increased, make the engine cylinder air leakage that oil consumption is increased.Therefore adopt the motor of this piston, neither environmental protection does not reach desirable output power yet, and oil consumption is also big after the long-time running.
Summary of the invention
At the deficiency of prior art, the purpose of this utility model is to provide a kind of output power to strengthen, discharge engine pistons desirable more, the many spill ports of skirt section multiple-grooved.
Goal of the invention of the present utility model is achieved by the following technical solution:
The engine piston of the many spill ports of a kind of skirt section multiple-grooved, by process some arc circular grooves in former pot type piston skirt section, its concrete quantity is decided by the piston skirt size; Simultaneously in every arc circular groove or a certain ditch, process several through holes and realize with drilling machine.
The utility model is owing to processed several arc circular grooves in the piston skirt, in circular groove, process a plurality of through holes simultaneously, make the piston of this structure both meet the optimization principles of plunger designs " lightweight ", reduced the area of contact of piston skirt and cylinder wall again, reduce the sassafras resistance that rubs, promoted engine output; It is more abundant that through hole in the circular groove makes the oil return of cylinder wall lubrication oil simultaneously, improved lubricating between piston and cylinder wall, reduced the phenomenon of " burn oil ", reduced the discharging of harmful tail gas.Therefore have the characteristics that output power is bigger, bucket cylinder is lubricated more well, discharge environmental protection more.
Description of drawings
Fig. 1 is the front view of the utility model piston.
Fig. 2 is the A-A sectional drawing of the utility model piston.
Number in the figure explanation: 1 piston body; 2 piston pin holes; 3 arc circular grooves; Spill port in the 4 arc circular grooves.
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment
Among Fig. 1 the utility model piston, on piston body 1, by being 1.5～2.0 millimeters at the piston skirt working width, the degree of depth is 0.3～0.5 millimeter an arc circular groove 3, ditch and ditch are spaced apart 3.0～3.5 millimeters, and the concrete quantity of arc circular groove is decided on the piston skirt size, are 3 herein.Simultaneously processing several diameters at every arc circular groove is 1.0～1.5 millimeters spill port 4, is 4 herein.In the A-A sectional drawing of Fig. 2 the utility model piston, hole and span angle are between 10～25 degree as can be seen.
Claims (1)
1. the engine piston of the many spill ports of skirt section multiple-grooved, it is characterized in that some of the piston skirt (2) of former pot type piston body (1) processing wide 1.5～2.0 millimeters, dark 0.3～0.5 millimeter arc circular groove (3), ditch and ditch are spaced apart 3.0～3.5 millimeters, concrete quantity is decided on piston skirt (2) size, to reduce the area of contact between piston skirt and cylinder wall; Simultaneously in every arc circular groove or a certain ditch, process several diameters and be 1.0～1.5 millimeters spill port (4), hole and span angle are 10～25 to spend, to improve the oil return of cylinder wall lubrication oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039408 CN200955454Y (en) | 2006-02-09 | 2006-02-09 | Engine piston having multiple slots and multiple oil-return holes at skirt part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039408 CN200955454Y (en) | 2006-02-09 | 2006-02-09 | Engine piston having multiple slots and multiple oil-return holes at skirt part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200955454Y true CN200955454Y (en) | 2007-10-03 |
Family
ID=38774039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620039408 Expired - Fee Related CN200955454Y (en) | 2006-02-09 | 2006-02-09 | Engine piston having multiple slots and multiple oil-return holes at skirt part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200955454Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296471A (en) * | 2018-09-10 | 2019-02-01 | 天津酝环科技发展有限公司 | A kind of high-efficiency lubricating piston |
-
2006
- 2006-02-09 CN CN 200620039408 patent/CN200955454Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296471A (en) * | 2018-09-10 | 2019-02-01 | 天津酝环科技发展有限公司 | A kind of high-efficiency lubricating piston |
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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: 20071003 Termination date: 20100209 |