Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1988-05-24
1989-04-25
Ward, Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 1, 277216, F16J 912
Patent
active
048241253
ABSTRACT:
An axial sealing arrangement in a rotary-piston engine, comprising a sealing member that is, for example, made of metal, and is inserted into a groove in one surface of an engine component while it bears against the wall of a surface of a second component that moves relative to the first component. On that surface that bears against the low-pressure side wall of the groove, and on that portion facing the base of the groove, the sealing member is provided with a rounded ledge via which it bears against the low-pressure side wall of the groove. In addition, on that side facing the opposite contact surface, the sealing member is provided with recesses which extend transversely with respect to the longitudinal extension of the sealing member, and which may communicate with a groove extending beside the rounded ledge. The recesses open toward the opposite contact surface and thus into the clearance that is to be sealed. The sealing member may be manufactured by rolling a strip between two profiling rollers.
REFERENCES:
patent: 1499571 (1924-07-01), Davis
patent: 1572690 (1926-02-01), Seelert
patent: 2226921 (1940-12-01), Chamberlain
patent: 4557488 (1985-12-01), Litherland
Wankel GmbH
Ward Robert S.
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