CN201326734Y - Composite piston - Google Patents
Composite piston Download PDFInfo
- Publication number
- CN201326734Y CN201326734Y CNU2008201593610U CN200820159361U CN201326734Y CN 201326734 Y CN201326734 Y CN 201326734Y CN U2008201593610 U CNU2008201593610 U CN U2008201593610U CN 200820159361 U CN200820159361 U CN 200820159361U CN 201326734 Y CN201326734 Y CN 201326734Y
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- CN
- China
- Prior art keywords
- piston
- skirt section
- head section
- head
- 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
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Disclosed is a composite piston. The traditional piston is integrally casted by aluminium casting alloy material with an iron wear ring casted in a ring land and an inner oil cooling passage catsed in a head section. The traditional piston has the technical problems that the aluminum alloy material has big thermal expansion coefficient and low high temperature strength, the piston to cylinder clearance is big, the output power of an engine is low, the fuel consumption is high and the like. The composite piston comprises a head section, a ring groove and a skirt section, wherein the head section is connected with the skirt section through a screw bolt and a nut, and the head section and the skirt section and combined to form a cooling oil passage which is communicated with the inner cavity of the piston through a spacer. Additionally, the composite piston is mainly used for various car engines.
Description
Technical field
The utility model relates to a kind of combined piston.
Background technique
At present, traditional piston is to adopt the cast aluminium alloy material cast inblock to form, the wear-resisting circle of ring bank castingin iron, and head casts out interior cold oil road.The aluminum alloy material thermal expansion coefficient is big, and hot strength is low, and cylinder prepareding gap is big, engine output is low thereby cause, the fuel consume height.
Summary of the invention
The purpose of this utility model provides a kind of combined piston.A kind of steel top, aluminium skirt built-up piston to reduce the thermal expansion coefficient of piston crown, improve the hot strength of piston crown, reduce the head cylinder prepareding gap, improve the output power of motor, reduce oil consumption.
The technological scheme that its technical problem that solves the utility model adopts is: comprise head, annular groove and skirt section, head is connected by screw bolt and nut with the skirt section, and head and skirt section are combined to form the cooling oil pocket, and oil pocket communicates with piston cavity by spacer tube.
The beneficial effects of the utility model are, adopt the built-up piston of said structure, and the piston crown thermal expansion coefficient has reduced, and hot strength has improved, and has increased the output power of motor, has reduced oil consumption.
Description of drawings
Fig. 1 is a mechanism map of the present utility model.
Fig. 2 is the spacer tube schematic representation
1. heads among the figure, 2. annular groove, 3. skirt section, 4. bolt and nut, 5. cooling oil pocket, 6. spacer tube.
Embodiment
By Fig. 1 to Fig. 2 as can be known, the built-up piston of the utility model comprises head (1), annular groove (2) and skirt section (3), and head is connected (4) with the skirt section by screw bolt and nut, head and skirt section are combined to form cooling oil pocket (5), and spacer tube (6) is arranged between oil pocket and the piston cavity.
This combined live plug head adopts all steel manufacturing, the reflectal manufacturing is adopted in the skirt section, the thermal expansion coefficient of steel is more much smaller than cast aluminium alloy, under the pistons work temperature, the strength ratio cast aluminium alloy of steel is much higher, the cooling oil pocket that piston crown and skirt section form helps cold oil piston is cooled off fully, spacer tube has guaranteed the unobstructed of cold oil turnover, piston crown is connected validity and the reliability that has guaranteed connection with the bolt and nut in skirt section, the strength ratio cast aluminium alloy height of skirt section reflectal, this kind design does not change the design parameter of piston profile ellipse and cydariform substantially, and the intensity of piston each several part is improved.This built-up piston can make output power increase by 50%.
Claims (1)
1, a kind of combined piston comprises head, annular groove and skirt section, it is characterized in that: head is connected by screw bolt and nut with the skirt section, and head and skirt section are combined to form the cooling oil pocket, and oil pocket communicates with piston cavity by spacer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201593610U CN201326734Y (en) | 2008-11-18 | 2008-11-18 | Composite piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201593610U CN201326734Y (en) | 2008-11-18 | 2008-11-18 | Composite piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201326734Y true CN201326734Y (en) | 2009-10-14 |
Family
ID=41178707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201593610U Expired - Fee Related CN201326734Y (en) | 2008-11-18 | 2008-11-18 | Composite piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201326734Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463459A (en) * | 2010-11-17 | 2012-05-23 | 常州朗锐活塞有限公司 | Assembly process for GEVO combined piston |
| CN102734127A (en) * | 2011-04-01 | 2012-10-17 | J.P.萨尔&索恩机械有限公司 | Piston compressor |
| WO2016131211A1 (en) * | 2015-02-16 | 2016-08-25 | 山东滨州渤海活塞股份有限公司 | Internal combustion engine piston having cooling gallery structure and internal combustion engine |
| CN107524542A (en) * | 2017-09-04 | 2017-12-29 | 常州中车柴油机零部件有限公司 | A kind of diesel engine composite piston |
| CN107605704A (en) * | 2017-11-07 | 2018-01-19 | 蚌埠高科瑞力压缩机有限公司 | Clearance adjusting device built in a kind of piston-cylinder use of compressor |
| CN107829909A (en) * | 2017-11-07 | 2018-03-23 | 蚌埠高科瑞力压缩机有限公司 | A kind of multiposition adjustment type piston for compressor cylinder inner width adjusting means |
| CN107905979A (en) * | 2017-11-07 | 2018-04-13 | 蚌埠高科瑞力压缩机有限公司 | A kind of piston for compressor cylinder clearance regulating device |
| CN109210192A (en) * | 2018-09-13 | 2019-01-15 | 湖南江滨机器（集团）有限责任公司 | A kind of all-steel piston and preparation method thereof |
| CN110469421A (en) * | 2018-05-11 | 2019-11-19 | 强莉莉 | A kind of built-up piston |
-
2008
- 2008-11-18 CN CNU2008201593610U patent/CN201326734Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463459A (en) * | 2010-11-17 | 2012-05-23 | 常州朗锐活塞有限公司 | Assembly process for GEVO combined piston |
| CN102734127A (en) * | 2011-04-01 | 2012-10-17 | J.P.萨尔&索恩机械有限公司 | Piston compressor |
| CN102734127B (en) * | 2011-04-01 | 2015-12-16 | J.P.萨尔&索恩机械有限公司 | Piston compressor |
| WO2016131211A1 (en) * | 2015-02-16 | 2016-08-25 | 山东滨州渤海活塞股份有限公司 | Internal combustion engine piston having cooling gallery structure and internal combustion engine |
| CN107524542A (en) * | 2017-09-04 | 2017-12-29 | 常州中车柴油机零部件有限公司 | A kind of diesel engine composite piston |
| CN107605704A (en) * | 2017-11-07 | 2018-01-19 | 蚌埠高科瑞力压缩机有限公司 | Clearance adjusting device built in a kind of piston-cylinder use of compressor |
| CN107829909A (en) * | 2017-11-07 | 2018-03-23 | 蚌埠高科瑞力压缩机有限公司 | A kind of multiposition adjustment type piston for compressor cylinder inner width adjusting means |
| CN107905979A (en) * | 2017-11-07 | 2018-04-13 | 蚌埠高科瑞力压缩机有限公司 | A kind of piston for compressor cylinder clearance regulating device |
| CN110469421A (en) * | 2018-05-11 | 2019-11-19 | 强莉莉 | A kind of built-up piston |
| CN109210192A (en) * | 2018-09-13 | 2019-01-15 | 湖南江滨机器（集团）有限责任公司 | A kind of all-steel piston and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20151118 |
|
| EXPY | Termination of patent right or utility model |