Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1988-05-03
1989-08-01
Shoap, Allan N.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 37, 277 39, 277 57, 277 67, 277 68, 277 71, 277 95, 277134, 277192, 277199, 384480, 384482, F16J 1534, F16J 15447, F16C 3372, F16C 3380
Patent
active
048528900
ABSTRACT:
A bearing isolator seal having a shaft seal assembly that includes a stator housing having an inner radially extending face with a pair of spaced concentric annular flanges of substantially frusto-conical shape extending from a larger diameter end that is fixed to the inner radially extending face to a smaller diameter free end, and a rotor having a peripherally extending radial flange that is fixed to a hub of the rotor and has a contact sealing surface that contacts the free end of the annular flanges of the stator housing. In accordance with a preferred embodiment, drain ports are provided at a radially inner side of the fixed end of a radially outermost one of the annular flanges of the stator housing, and radially extending grooves are provided in an end surface of a frusto-conical wall extending axially from the sealing face of the radial flange of rotor so as to cause lubricant to be propelled radially outwardly against the radially outermost annular flange of the stator housing, along which it is caused to flow to and through axially extending holes forming the drain ports under dynamic sealing conditions.
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Garlock Inc.
Shoap Allan N.
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