Patent · US Expired

Method of producing a piston

US6546626B2 · kind B2 · utility

1Cited by

12References

3Claims

0Family size

Assignee

Federal-Mogul Nurnberg GmbH · DE

Inventors

Bernhard Otte · Zirndorf, DE
Peter Konrad · Old Hickory, US
Clemens Wallmann · Erlangen, DE
Hans Werner Waldmann · Neudrossenfeld, DE
Hans Bergmann · Bayreuth, DE

Key dates

Filing date	Aug 15, 2001
Grant date	Apr 15, 2003
Priority date	—
Expiry date	Aug 15, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49996
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

In a method of producing a piston (10) for an internal combustion engine including at least one strengthened piston ring groove at least one relatively narrow groove (14) is configured in the region of the upper and/or lower flank of the provided piston ring groove (18) and the groove (14) is filled with a hard-wearing material (16) and the piston ring groove (18) is worked out such that the upper and/or lower flank is formed at least in part by the hard-wearing material (16).

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