发明授权
- 专利标题: Piston for an internal combustion engine and method for its production
- 专利标题(中): 活塞内燃机及其生产方法
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申请号: US13066560申请日: 2011-04-18
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公开(公告)号: US08813712B2公开(公告)日: 2014-08-26
- 发明人: Karlheinz Bing , Michael T. Lapp , Rainer Scharp , Michael Ullrich
- 申请人: Karlheinz Bing , Michael T. Lapp , Rainer Scharp , Michael Ullrich
- 申请人地址: DE Stuttgart
- 专利权人: MAHLE International GmbH
- 当前专利权人: MAHLE International GmbH
- 当前专利权人地址: DE Stuttgart
- 代理机构: Collard & Roe, P.C.
- 优先权: DE102011013113 20110304
- 主分类号: F02F3/16
- IPC分类号: F02F3/16 ; F02F3/26
摘要:
A piston for an internal combustion engine has a piston head, a piston skirt, and a circumferential recess configured between the piston head and the piston skirt. The piston has a piston base body and a piston ring element. The piston base body has a crown region of a combustion bowl and the piston skirt. The piston ring element has a piston crown, a wall region of the combustion bowl, a circumferential top land, and a circumferential ring belt with ring grooves. The piston ring element has a circumferential cooling channel between the wall region of the combustion bowl and the ring belt, closed with a closure element. The piston base body and the piston ring element have a circumferential joining seam in the region of the combustion bowl, by way of which seam they are non-releasably connected with one another.
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