CN2257863Y - Motorcycle piston - Google Patents
Motorcycle piston Download PDFInfo
- Publication number
- CN2257863Y CN2257863Y CN 96227701 CN96227701U CN2257863Y CN 2257863 Y CN2257863 Y CN 2257863Y CN 96227701 CN96227701 CN 96227701 CN 96227701 U CN96227701 U CN 96227701U CN 2257863 Y CN2257863 Y CN 2257863Y
- Authority
- CN
- China
- Prior art keywords
- piston
- motorcycle
- oil ring
- motorcycle piston
- skirt section
- 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
Links
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Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model provides a motorcycle piston, particularly a motorcycle piston which is suitable for 150 cc displacement. The motorcycle piston is composed of a head portion, a ring land, and a skirt portion. An oil ring groove (1) and the lower side of the oil ring groove are provided with an oil hole (2); a molded line above the maximum point of the diameter of the skirt portion is a parabolic shape; the internal chamber of the top of the piston (3) is a circular arc of a spherical surface which forms a smooth blend with a cylindrical surface through circular arc surfaces, and the groove position of the oil ring of the internal chamber is the smooth blend of the two circular arc surfaces. The skirt portion surface of the motorcycle piston can be sufficiently attached to the internal surface of a cylinder sleeve, and the motorcycle piston has the advantages of sufficient combustion of the engine, low noise, light weight, and high bearing capacity.
Description
The utility model provides a kind of motorcycle piston, especially a kind of motorcycle piston that is suitable for the 150cc discharge capacity.
Piston is made up of head, ring bank, pin-and-hole and skirt section.Oval taper is made in the existing piston skirt section when cold conditions, under the high load situation, form high speed elasticity extrusion-deformation friction between piston skirt cylindrical and the casing wall, outer round surface occurs and tears and pull, and can block cylinder or splicing when serious.Also there is the insufficient and big problem of combustion noise of burning in existing in addition motorcycle piston.
The purpose of this utility model provides a kind of motorcycle piston, to improve the bearing capacity of piston, improves combustion performance.
The utility model is achieved in that the above molded lines of maximum point of this piston skirt is parabola shaped, and the piston head inner chamber is the rounding off that there is arc surface spherical arc and cylndrical surface, and the oil ring groove position of inner chamber is the rounding off of two arc surfaces.
Adopt the motorcycle piston of said structure, under hot working, fit fully with inner surface of cylinder liner in the surface, piston skirt, inner-cavity structure has guaranteed the reasonable transmission of heat, has also satisfied requirement of strength, the requirement of strength at oil ring groove position particularly, piston structure is reasonable in design, and reliable, engine combustion is abundant, noise is little, in light weight, the bearing capacity height.
Below in conjunction with description of drawings concrete structure of the present utility model.
Fig. 1 is the schematic representation of the utility model external structure.Curve representation shown in Figure 2 piston skirt diameter variation rule.Fig. 3 is the schematic representation of its inner-cavity structure.
As shown in drawings, the motorcycle piston of the utility model, form by head, ring bank, pin-and-hole and skirt section, oilhole (2) is arranged under oil ring groove (1) and the oil ring groove, diameter maximum point above molded lines in skirt section is parabola shaped, piston head (3) inner chamber is the rounding off that arc surface is used in spherical arc and cylndrical surface, and the oil ring groove position of inner chamber is the rounding off of two arc surfaces.
The skirt section maximum diameter is at 0～10mm place, lower end, skirt section, and maximum diameter is 61.98～61.96mm, and the skirt section ovality is 0.23 ± 0.01.
The utility model is particularly suitable for use on the XF150 type motorcycle of 150cc discharge capacity.
Claims (2)
1. motorcycle piston, form by head, ring bank, pin-and-hole and skirt section, oilhole (2) is arranged under oil ring groove (1) and the oil ring groove, it is characterized in that, diameter maximum point above molded lines in described skirt section is parabola shaped, piston head (3) inner chamber is the rounding off that arc surface is used in spherical arc and cylndrical surface, and the oil ring groove position of inner chamber is the rounding off of two arc surfaces.
2. motorcycle piston as claimed in claim 1 is characterized in that, described skirt section maximum diameter is at 0-10mm place, lower end, skirt section, and maximum diameter is 61.98-61.96mm, and the skirt section ovality is 0.23 ± 0.01.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96227701 CN2257863Y (en) | 1996-04-26 | 1996-04-26 | Motorcycle piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96227701 CN2257863Y (en) | 1996-04-26 | 1996-04-26 | Motorcycle piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2257863Y true CN2257863Y (en) | 1997-07-16 |
Family
ID=33905745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96227701 Expired - Fee Related CN2257863Y (en) | 1996-04-26 | 1996-04-26 | Motorcycle piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2257863Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793205A (en) * | 2010-03-30 | 2010-08-04 | 山东滨州渤海活塞股份有限公司 | Novel laser welding piston with forged steel structure |
-
1996
- 1996-04-26 CN CN 96227701 patent/CN2257863Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793205A (en) * | 2010-03-30 | 2010-08-04 | 山东滨州渤海活塞股份有限公司 | Novel laser welding piston with forged steel structure |
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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 |