Sealing device for engine piston

Details Sealing device for engine piston Sealing device for engine piston

1979-08-08

1981-07-28

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277104, 277119, 277145, 277193, F16J 920

Patent

active

042807085

ABSTRACT:
A sealing device for pistons comprises a piston-ring groove having upper and lower annular inclined surfaces forming a nearly V-shape in cross-section, a piston ring having an annular inclined surface that bears tightly against the lower annular inclined surface of the piston-ring groove, and an auxiliary ring having an annular inclined surface that slides downwardly along the upper and annular inclined surface of the piston-ring groove to force the piston ring downwardly along the lower annular inclined surface of the piston-ring groove and expand the piston ring.

REFERENCES:
patent: 1381993 (1921-06-01), Hill et al.
patent: 1814355 (1931-07-01), Williams
patent: 3831952 (1974-08-01), Geffroy

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