Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1997-12-17
2000-05-30
Mah, Chuck Y.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 38, 277399, 277401, 277408, F16J 1534
Patent
active
060682647
ABSTRACT:
A split mechanical face seat that provides fluid sealing between a housing and a rotating shaft includes first and second seal rings each having at least two seal ring segments and a radially extending seal surface. The seal ring surfaces of the seal rings are opposed to one another. One of the seal rings is connected to the rotating shaft to rotate therewith, while the other seal ring is connected to the housing. The split seal also includes a mechanism for introducing a fluid to the seal surfaces of the first and second seal rings. The seal further is provided with a system for fluidly retaining together the seal ring segments of one of the seal rings in a sealing relationship during a negative pressure condition.
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Azibert Henri V.
Clark Marlen S.
Ruan Bo
Wu Shifeng
A.W. Chesterton Company
Mah Chuck Y.
Pickard Alison K.
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