Invention Grant
- Patent Title: Multi-part piston for an internal combustion engine
- Patent Title (中): 用于内燃机的多部件活塞
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Application No.: US13325319Application Date: 2011-12-14
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Publication No.: US08453618B2Publication Date: 2013-06-04
- Inventor: Rainer Scharp
- Applicant: Rainer Scharp
- Applicant Address: DE Stuttgart
- Assignee: MAHLE International GmbH
- Current Assignee: MAHLE International GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Collard & Roe, P.C.
- Priority: DE102008055909 20081105
- Main IPC: F02F3/00
- IPC: F02F3/00 ; F02F3/22

Abstract:
A multi-part piston for an internal combustion engine has an upper piston part with a piston crown, and a lower piston part, each of the piston parts having an inner and an outer support element that delimit an outer circumferential cooling channel and an inner cooling chamber. The cooling chamber bottom has an opening. A holding element is disposed in the inner cooling chamber and extends from the underside of the piston crown vertically toward the opening. The holding element carries a closure element that closes the opening and has at least one cooling oil opening.
Public/Granted literature
- US20120080005A1 MULTI-PART PISTON FOR AN INTERNAL COMBUSTION ENGINE Public/Granted day:2012-04-05
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