Patent · US Active

Multipart, cooled piston for a combustion engine

US7743745B2 · kind B2 · utility

4Cited by

11References

2Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventor

Rainer Scharp · Leinfelden, DE

Key dates

Filing date	Nov 28, 2005
Grant date	Jun 29, 2010
Priority date	—
Expiry date	Jul 10, 2027

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02F3/0023
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

Disclosed is a multipart, cooled piston for a combustion engine, comprising, in a radially outward direction, an annular cooling duct located on the bottom side that faces away from the piston head. The cooling duct is closed by a cooling duct cover which is embodied as a ring. The cooling duct cover is provided with a tongue in the radially inner zone. The tongue engages into a recess that is molded into the bottom piston part, thus preventing the cooling duct cover from rotating relative to the piston during assembly as well as during operation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.