发明公开
- 专利标题: KOLBEN FÜR VERBRENNUNGSKRAFTMASCHINEN
- 专利标题(英): Piston for internal combustion engines
- 专利标题(中): 活塞内燃发动机
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申请号: EP99938369.8申请日: 1999-07-29
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公开(公告)号: EP1105665A1公开(公告)日: 2001-06-13
- 发明人: PFESTORF, Harald , MIELKE, Siegfied , LANDVATTER, Werner , OTTLICZKY, Emmerich
- 申请人: KS Kolbenschmidt GmbH
- 申请人地址: Karl-Schmidt-Strasse 74172 Neckarsulm DE
- 专利权人: KS Kolbenschmidt GmbH
- 当前专利权人: KS Kolbenschmidt GmbH
- 当前专利权人地址: Karl-Schmidt-Strasse 74172 Neckarsulm DE
- 代理机构: Friz, Oliver
- 优先权: DE19837596 19980819
- 国际公布: WO0011377 20000302
- 主分类号: F16J1/16
- IPC分类号: F16J1/16 ; F02F3/00
摘要:
The invention relates to a light metal piston for internal combustion engines, with bearing bushes (4) placed in piston pin bores (2) of the pin hubs for the piston pin through which said piston is drivingly connected to the motor drive rod. In order to improve the tight fit of said bushes (4) in the piston pin bores, the piston is built in such a way that said bearing bush (4) is a bush wound from a laminated strip- or band shaped metallic material, which has a joint (6) that is closed in a compressed condition, and said wound bush exhibits a preferential orientation of the metallurgical grains thereof in a peripheral direction.
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