Lip seal with channeled and non-channeled portions

Details Lip seal with channeled and non-channeled portions Lip seal with channeled and non-channeled portions

1984-06-28

1985-10-15

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277153, 277166, F16J 1532

Patent

active

045469857

ABSTRACT:
A shaft seal ring has a support ring fixed to an annular machine element and a resilient lip ring engaging a co-axially rotatable shaft. Two intersecting conical surfaces form an innermost sealing edge on the lip ring. Channels extend from the sealing edge in one of the conical surfaces to a non-channeled portion thereof. Increasing pressure of a liquid sealed-in forces the channeled conical surface against the shaft to increase its sealing area correspondingly while the channels admit some of the liquid therebetween for lubrication.

REFERENCES:
patent: 3515395 (1970-06-01), Weinand
patent: 3534969 (1970-10-01), Weinand
patent: 3729204 (1973-04-01), Augustin
patent: 4084826 (1978-04-01), Vossieck et al.
patent: 4094519 (1978-06-01), Heyn et al.
patent: 4288083 (1981-09-01), Braconier

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