Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1984-03-08
1984-11-27
Ward, Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 83, 277 84, 277174, 277177, F16J 1534, F16J 1554
Patent
active
044847521
ABSTRACT:
A rotating-disc bidirectional hydrodynamic oil seal, for use between a shaft and a bore, one of which is stationary while the other rotates. A rigid member has a peripheral portion engaging the stationary member and has a frustoconical portion with a disc-engaging surface on one side, facing the shaft. A sealing assembly has a portion mounted on the rotating member and a flexible sealing disc that extends radially outwardly and tends to assume a substantially radial position. The disc has an outer edge and first and second opposite faces; the first face engages the disc-engaging surface of the wear sleeve which also flexes the disc. The oil reservoir is functionally in communication with the outer edge and the second face. Centrifugal force, in either direction of rotation urges the first face snugly against the disc-engaging surface and prevents passage of oil between the disc and the disc-engaging surface. If some oil does get beyond the disc, it is returned to the oil reservoir.
REFERENCES:
patent: 2418707 (1947-04-01), Groot
patent: 2877029 (1959-03-01), Peguet et al.
patent: 2908536 (1959-10-01), Dickey
patent: 3536332 (1970-10-01), Pitner
patent: 4283064 (1981-08-01), Staab et al.
patent: 4348031 (1982-09-01), Johnston
Federal-Mogul Corporation
Hess Robert F.
Ward Robert S.
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