CN2900825Y - Piston skirt external cylindrical surface structure - Google Patents
Piston skirt external cylindrical surface structure Download PDFInfo
- Publication number
- CN2900825Y CN2900825Y CNU2006201103839U CN200620110383U CN2900825Y CN 2900825 Y CN2900825 Y CN 2900825Y CN U2006201103839 U CNU2006201103839 U CN U2006201103839U CN 200620110383 U CN200620110383 U CN 200620110383U CN 2900825 Y CN2900825 Y CN 2900825Y
- Authority
- CN
- China
- Prior art keywords
- piston
- cylindrical surface
- piston skirt
- utility
- model
- 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
Abstract
The utility model discloses a cylindrical surface texture for piston skirts. The cylindrical surface achieves a continuous or indirect undulating-ribbon structure by mechanically cutting, and then the chases of the undulating ribbon structure can store enough luboil. In this way, the utility model improves the lubrication of the piston skirt, decreases the abrasion, and prolongs the service life of the piston. In addition, the heaves of the undulating-ribbon structure of the cylindrical surface are easy to be grinded off, the utility model is good for increasing the incipience running-in characteristic of the piston and improving the seizure resistance.
Description
Technical field
The utility model belongs to the car engine machine technology, and the surface structure that is specifically related to a kind of motor car engine piston improves.
Background technique
At present, the skirt section external cylindrical surface of common engine piston all adopts very smooth surface, its surface roughness fitness for purpose is Rz3.2～6.3, and this kind structure is unfavorable for the initial stage break-in of piston, is unfavorable for improving the lubricated and minimizing piston skirt wearing and tearing in piston skirt.
Summary of the invention
The purpose of this utility model is to provide a kind of piston skirt outer round surface structure, improves the resistance to wearing of piston skirt and head, bite-resistant performance, improves piston working life, improves the piston initial fitting property and can and lubricate.
The technical solution of the utility model is as follows:
The utility model obtains continuous wave structure or indirect wave structure with the skirt section outer round surface of piston by machine cut, make the groove of wave structure of piston skirt periphery can store enough lubricant oil, it is lubricated to improve the piston skirt, reduces piston wear, improves piston working life.And the wave high spot of periphery is easy to grind off, and improves piston initial fitting property energy, improves the bite-resistant ability.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the continuous corrugated part section structural representation of outer round surface;
Fig. 3 is the indirect corrugated part section structural representation of outer round surface.
Embodiment
Fig. 1 has shown the partial structurtes in a kind of engine piston skirt section, as seen from Figure 1, be formed with wave structure 2 by machine cut on the periphery in the skirt section 1 of piston, this wave structure can be continuous wave structure 2A shown in Figure 2, also can be indirect wave structure 2B shown in Figure 3.Lubricant oil can be stored in the groove of wave like this, has improved the resistance to wearing of piston skirt and head, bite-resistant performance, improved the piston initial fitting property can and lubricated.
Claims (1)
1. piston skirt outer round surface structure is characterized in that: the outer round surface of piston skirt is continuous wave shape wave or wavy shaped configuration indirectly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201103839U CN2900825Y (en) | 2006-04-19 | 2006-04-19 | Piston skirt external cylindrical surface structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201103839U CN2900825Y (en) | 2006-04-19 | 2006-04-19 | Piston skirt external cylindrical surface structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900825Y true CN2900825Y (en) | 2007-05-16 |
Family
ID=38084988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201103839U Expired - Fee Related CN2900825Y (en) | 2006-04-19 | 2006-04-19 | Piston skirt external cylindrical surface structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900825Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593679A (en) * | 2015-10-14 | 2017-04-26 | 福特环球技术公司 | Direct-injection internal combustion engine with piston, and method for producing a piston of an internal combustion engine of said type |
| CN113417754A (en) * | 2021-07-21 | 2021-09-21 | 上海交通大学 | Wear-resistant structure for aluminum-based piston skirt and machining method thereof |
| CN113583485A (en) * | 2021-07-21 | 2021-11-02 | 上海交通大学 | Wear-resistant coating for aluminum-based piston skirt and preparation method thereof |
-
2006
- 2006-04-19 CN CNU2006201103839U patent/CN2900825Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593679A (en) * | 2015-10-14 | 2017-04-26 | 福特环球技术公司 | Direct-injection internal combustion engine with piston, and method for producing a piston of an internal combustion engine of said type |
| CN106593679B (en) * | 2015-10-14 | 2020-12-11 | 福特环球技术公司 | Direct injection internal combustion engine with piston and method of producing the same |
| CN113417754A (en) * | 2021-07-21 | 2021-09-21 | 上海交通大学 | Wear-resistant structure for aluminum-based piston skirt and machining method thereof |
| CN113583485A (en) * | 2021-07-21 | 2021-11-02 | 上海交通大学 | Wear-resistant coating for aluminum-based piston skirt and preparation method thereof |
| CN113583485B (en) * | 2021-07-21 | 2022-04-26 | 上海交通大学 | Wear-resistant coating for aluminum-based piston skirt and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangling Holdings Co, Ltd. Assignor: Chongqing Changan Automobile Co., Ltd. Contract fulfillment period: 2009.7.15 to 2014.7.15 Contract record no.: 2009360000046 Denomination of utility model: Piston skirt external cylindrical surface structure Granted publication date: 20070516 License type: Exclusive license Record date: 20090812 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.7.15 TO 2014.7.15; CHANGE OF CONTRACT Name of requester: JIANGLING HOLDING CO., LTD. Effective date: 20090812 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070516 Termination date: 20120419 |