Patent · US Active

Piston for an internal combustion engine and method for its production

US8074617B2 · kind B2 · utility

10Cited by

8References

5Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventors

Peter Grahle · Gerlingen, DE
Wilfried Sander · Neckarsulm, DE
Joachim Schulz · Stuttgart, DE
Andreas Seeger-Van Nie · Bad Sobernheim, DE

Key dates

Filing date	Dec 8, 2008
Grant date	Dec 13, 2011
Priority date	—
Expiry date	Feb 24, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49249
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A piston for an internal combustion engine, has a lower piston part and an upper piston part disposed on the lower piston part. The upper piston part has a top land that runs around its circumference, and a ring belt that runs around its circumference. At least the upper piston part consists of a sintered material.

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