Patent · US Active

Gliding element

US9169547B2 · kind B2 · utility

0Cited by

19References

17Claims

0Family size

Assignee

Federal-Mogul Burscheid GmbH · DE

Inventors

Steffen Hoppe · Overath, DE
Manfred Fischer · Leichlingen, DE
Marcus Kennedy · Düsseldorf, DE

Key dates

Filing date	Feb 24, 2010
Grant date	Oct 27, 2015
Priority date	—
Expiry date	Apr 1, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/30
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a gliding element of an internal combustion engine, especially a piston ring, having a DLC coating of the ta-C type which has at least one residual stress gradient.

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