CN103016716A - Steel head and aluminium skirt piston with taper piston pin holes - Google Patents
Steel head and aluminium skirt piston with taper piston pin holes Download PDFInfo
- Publication number
- CN103016716A CN103016716A CN2012104814809A CN201210481480A CN103016716A CN 103016716 A CN103016716 A CN 103016716A CN 2012104814809 A CN2012104814809 A CN 2012104814809A CN 201210481480 A CN201210481480 A CN 201210481480A CN 103016716 A CN103016716 A CN 103016716A
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- China
- Prior art keywords
- piston
- pin holes
- piston pin
- skirt
- taper
- 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.)
- Pending
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a steel head and aluminium skirt piston with taper piston pin holes. Two piston pin holes are formed in the middle of a piston skirt; cylindrical holes are formed in one sides, close to the excircles, of the two piston pin holes; and the two piston pin holes adopt tapered molded wires structures from the middle positions to the centers. According to the steel head and aluminium skirt piston, the piston pin holes adopt the tapered structures, so that the correct magnitude of interference is ensured, and the firmly tight force of interference is increased, which ensures that a copper bush cannot rotate when the piston is used.
Description
Technical field
The present invention relates to a kind of steel crown and aluminum skirt piston with the taper piston pin-and-hole.
Background technique
In the prior art, the piston pin hole of steel crown and aluminum skirt piston generally is the cylinder type pin-and-hole, the phenomenon that often easily produces in use copper sheathing rotation or play of this structure.
Summary of the invention
The purpose of this invention is to provide a kind of steel crown and aluminum skirt piston with the taper piston pin-and-hole.
The technological scheme that the present invention adopts for achieving the above object is: a kind of steel crown and aluminum skirt piston with the taper piston pin-and-hole, the centre of described piston skirt is provided with two piston pin holes, the outer round side of described two piston pin holes is cylindrical hole, is tapered molded line structure to the center from the pin-and-hole intermediate open position beginning.
A kind of steel crown and aluminum skirt piston with the taper piston pin-and-hole of the present invention, piston pin hole has adopted tapered structure, guarantees correct magnitude of interference, increases the fastening dynamics of interference, thereby guarantees that copper sheathing can not rotate in use.
Description of drawings
Fig. 1 is the structural representation of a kind of steel crown and aluminum skirt piston with the taper piston pin-and-hole of the present invention.
Embodiment
As shown in Figure 1, with the steel crown and aluminum skirt piston of taper piston pin-and-hole, it is cylindrical hole that the centre of piston skirt is provided with the outer round side of 1, two piston pin hole of two piston pin holes, is tapered molded line structure to the center from the pin-and-hole intermediate open position beginning.Piston pin hole is circular cone molded line hole structure from A cylindrical hole structure to B place, the steel crown and aluminum skirt piston of this structure, copper sheathing dwindles with the liquid nitrogen cooling, guarantees to place in place with frock, guarantee correct magnitude of interference, thereby guarantee that copper sheathing can not rotate in use.
Claims (1)
1. steel crown and aluminum skirt piston with the taper piston pin-and-hole, it is characterized in that: the centre of described piston skirt is provided with two piston pin holes, and the outer round side of described two piston pin holes is cylindrical hole, begins to be to the center tapered molded line structure from the pin-and-hole intermediate open position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104814809A CN103016716A (en) | 2012-11-23 | 2012-11-23 | Steel head and aluminium skirt piston with taper piston pin holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104814809A CN103016716A (en) | 2012-11-23 | 2012-11-23 | Steel head and aluminium skirt piston with taper piston pin holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103016716A true CN103016716A (en) | 2013-04-03 |
Family
ID=47965649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104814809A Pending CN103016716A (en) | 2012-11-23 | 2012-11-23 | Steel head and aluminium skirt piston with taper piston pin holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103016716A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763753A (en) * | 2016-11-14 | 2017-05-31 | 无锡市乾泰金属构件厂 | Pass piston pin in a kind of multiform |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3718005A1 (en) * | 1987-05-27 | 1988-12-15 | Mahle Gmbh | Piston for combustion engines having a pin to secure a piston ring against torsion |
| CN201835934U (en) * | 2010-06-07 | 2011-05-18 | 安徽省恒泰活塞制造有限公司 | Piston of air-cooled single-cylinder diesel engine |
| CN202031716U (en) * | 2011-02-12 | 2011-11-09 | 广州汽车集团股份有限公司 | Piston for automobile engine |
| CN102367771A (en) * | 2011-11-30 | 2012-03-07 | 中国北车集团大连机车研究所有限公司 | Steel crown and aluminum skirt combined type piston for diesel engine |
| CN202250450U (en) * | 2011-09-20 | 2012-05-30 | 江门市朝扬精密制造有限公司 | Anti-expansion cylinder piston |
-
2012
- 2012-11-23 CN CN2012104814809A patent/CN103016716A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3718005A1 (en) * | 1987-05-27 | 1988-12-15 | Mahle Gmbh | Piston for combustion engines having a pin to secure a piston ring against torsion |
| CN201835934U (en) * | 2010-06-07 | 2011-05-18 | 安徽省恒泰活塞制造有限公司 | Piston of air-cooled single-cylinder diesel engine |
| CN202031716U (en) * | 2011-02-12 | 2011-11-09 | 广州汽车集团股份有限公司 | Piston for automobile engine |
| CN202250450U (en) * | 2011-09-20 | 2012-05-30 | 江门市朝扬精密制造有限公司 | Anti-expansion cylinder piston |
| CN102367771A (en) * | 2011-11-30 | 2012-03-07 | 中国北车集团大连机车研究所有限公司 | Steel crown and aluminum skirt combined type piston for diesel engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763753A (en) * | 2016-11-14 | 2017-05-31 | 无锡市乾泰金属构件厂 | Pass piston pin in a kind of multiform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130403 |