Patent · US Active

Piston for an internal combustion engine

US8661965B2 · kind B2 · utility

3Cited by

6References

12Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventors

Rainer Scharp · Leinfelden, DE
Michael Ullrich · Heubach, DE

Key dates

Filing date	Apr 18, 2011
Grant date	Mar 4, 2014
Priority date	—
Expiry date	Dec 3, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02F3/22
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The present invention relates to a piston (10, 110, 210) for an internal combustion engine, having a first piston component (11) and a second piston component (12), which jointly form a circumferential cooling channel (23) that is open toward the second piston component (12), whereby the first piston component (11) forms at least a part of a piston crown (13) as well as an outer circumferential wall (34) of the cooling channel, characterized in that the outer circumferential wall (34) of the cooling channel (23) has a circumferential projection (32) below the piston crown (13), which projection is provided with a circumferential guide surface (33) for coolant, directed radially inward.

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