Piston ring
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 21, 1987
Grant Date -
N/A
app pub date -
Dec 23, 1985
filing date -
Dec 24, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This piston ring has a composite plated layer at least on its outwardly facing sliding surface. The composite plated layer includes a quantity of hard particles of a granular dispersion material dispersed in a matrix of matrix metal consisting essentially of nickel-cobalt-phosphorous alloy containing about 10% to about 40% by weight of cobalt, about 2% to about 15% by weight of phosphorous, and remainder substantially nickel. It may also further include a quantity of lubricating particles having average particle diameter of from about 0.5 microns to about 20 microns and having a content of from about 5% to about 3% by volume. Yet further, the composite plated layer may include a quantity of short fibrous dispersion material dispersed in the matrix of matrix metal. Thereby, the wear on the piston ring, and also the wear on the cylinder bore in which it slides, are reduced.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully