Invention Grant
- Patent Title: Piston for an internal combustion engine and method for its production
- Patent Title (中): 活塞内燃机及其生产方法
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Application No.: US13066560Application Date: 2011-04-18
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Publication No.: US08813712B2Publication Date: 2014-08-26
- Inventor: Karlheinz Bing , Michael T. Lapp , Rainer Scharp , Michael Ullrich
- Applicant: Karlheinz Bing , Michael T. Lapp , Rainer Scharp , Michael Ullrich
- Applicant Address: DE Stuttgart
- Assignee: MAHLE International GmbH
- Current Assignee: MAHLE International GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Collard & Roe, P.C.
- Priority: DE102011013113 20110304
- Main IPC: F02F3/16
- IPC: F02F3/16 ; F02F3/26

Abstract:
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.
Public/Granted literature
- US20120222644A1 Piston for an internal combustion engine and method for its production Public/Granted day:2012-09-06
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