Patent · US Active

Piston ring having a thermally sprayed coating and method for producing same

US9194492B2 · kind B2 · utility

0Cited by

3References

15Claims

0Family size

Assignee

Federal-Mogul Burscheid GmbH · DE

Inventors

Marcus Kennedy · Düsseldorf, DE
Michael Zinnabold · Burscheid, DE
Marc-Manuel Matz · Friedberg, DE

Key dates

Filing date	Jun 20, 2011
Grant date	Nov 24, 2015
Priority date	—
Expiry date	Jan 3, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22F2998/00
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for producing a piston ring for an internal combustion engine includes providing, a substrate and applying a coating by means of thermal spraying of a powder including solid lubricants on the substrate, having the elemental proportions of 15-30% by weight of iron, Fe; 15-30% by weight tungsten, W; 25-35% by weight of chromium, Cr; 10-35% by weight of nickel, Ni; 1-5% by weight of molybdenum, Mo; 0.2-3% by weight of aluminum, Al; 3-20% by weight of copper, Cu; 1-10% by weight of carbon, C; 0.1-2% by weight of sulfur, S; and 0.1-2% by weight of silicon, Si. The resultant piston ring and coating are also provided.

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