Ceramic coated piston rings

Details Ceramic coated piston rings Ceramic coated piston rings

1977-08-18

1978-08-15

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277224, 427 34, 427423, F16J 912

Patent

active

041067827

ABSTRACT:
Disclosed herein is a piston ring for an internal combustion ring having its face plasma sprayed with a ceramic coating comprised of 40% by weight titanium dioxide and 60% by weight aluminum oxide. The ceramic coating material has a low coefficient of friction, high material integrity and superior wetting characteristics.

REFERENCES:
patent: 3113885 (1963-12-01), Teague
patent: 3269856 (1966-08-01), Jones
patent: 3310423 (1967-03-01), Ingham
patent: 3481715 (1969-12-01), Whalen et al.
patent: 3607343 (1971-09-01), Longo et al.
patent: 3697091 (1972-10-01), Prasse et al.
patent: 3927223 (1975-12-01), Takabatake et al.
patent: 3941903 (1976-03-01), Tucker

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