Piston ring employing elastomeric sealing member within the ring

Details Piston ring employing elastomeric sealing member within the ring Piston ring employing elastomeric sealing member within the ring

1995-03-10

1995-12-12

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277168, 277174, 277176, 277177, F16J 1546

Patent

active

054743079

ABSTRACT:
A piston head assembly has one, two or more grooves to receive piston rings. One or more of the grooves may receive multiple piston rings. A circumferential groove from the bottom of the elastomeric material allows oil pressure to aid in sealing. A novel piston ring employs a circumferential channel facing outwardly with a shorter bottom channel facing outwardly with a shorter bottom channel sidewall. The elastomeric material extends to form a circumferential extension cooperative with a subgroove of the piston ring groove.

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patent: 4592559 (1986-06-01), Harvey
patent: 4714259 (1987-12-01), Mack et al.
patent: 5001965 (1991-03-01), Ruddy et al.
patent: 5275422 (1994-01-01), Rehfeld

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