Patent · US Active

Piston for an internal combustion engine

US9771891B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventors

Rainer Scharp · Leinfelden, DE
Peter Kemnitz · Leutenbach, DE

Key dates

Filing date	May 28, 2014
Grant date	Sep 26, 2017
Priority date	—
Expiry date	Sep 5, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02F3/20
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A piston for an internal combustion engine may include a piston head and a piston skirt. The piston head may include a piston crown, a circumferential fire land, a circumferential ring belt having a plurality of ring grooves, and a circumferential cooling duct. The cooling duct may be open in a direction away from the fire land and may be at least partially closed by a closure element. The cooling duct may include a cooling duct bottom and a cooling duct ceiling. The piston skirt may have at least two piston bosses connected to one another via at least two running faces. At least one running face may have an inner face connected via a connecting land to an underside of the piston head.

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