Patent · US Active

Piston ring with shot-peened running-in layer and method for the production thereof

US11384436B2 · kind B2 · utility

0Cited by

1References

15Claims

0Family size

Assignee

Federal-Mogul Friedberg GmbH · DE

Inventors

Michael Buchmann · Duisburg, DE
Markus Aumiller · Hunzenschwil, CH

Key dates

Filing date	Apr 24, 2018
Grant date	Jul 12, 2022
Priority date	—
Expiry date	Oct 21, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16J9/26
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A piston ring includes an annular body, a wear-resistant layer that is applied to the annular body by thermal spraying, and a strain-hardened run-in layer, made of an AlCuFe alloy, that is applied to the wear-resistant layer by thermal spraying.

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