Ceramic coated piston rings

Details Ceramic coated piston rings Ceramic coated piston rings

1977-01-17

1978-03-07

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

427 34, 291566, B05B 722, F16J 900

Patent

active

040776379

ABSTRACT:
Piston rings for internal combustion engines having the bearing face plasma sprayed with a superior scuff and wear resistant material. The bearing surface of the rings is plasma jet sprayed with a bond coat comprised of nickel, chromium and aluminum and a scuff and wear resistant coating of aluminum oxide, titanium dioxide and ferric oxide.

REFERENCES:
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: 3890070 (1975-06-01), Sasame et al.
patent: 3927223 (1975-12-01), Takabatake et al.
patent: 3938814 (1976-02-01), Cromwell
patent: 3941903 (1976-03-01), Tucker

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