Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1982-02-08
1984-05-15
Smith, Robert I.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 41, 277 65, F16J 1534
Patent
active
044484283
ABSTRACT:
An improved mechanical seal assembly comprising a generally stationary seal ring and rotatable seal ring, each with opposed seal faces, the stationary seal ring being connected to a stationary housing by elastomeric keys. One of said seal rings is constructed of a material such as a carbon graphite composition which is more brittle than the other which is constructed of a much harder less brittle material. As in most seals of this character, the seal faces are lubricated by a fluid film flowing radially across the opposing faces. In the absence or upon failure of the film, the rings can seize, generally resulting in a breakage of or other damage to the more brittle seal ring. However, the elastomeric connecting keys provide a cushion for absorbing dynamic forces in the tangential direction, to distribute bearing loads substantially evenly and to allow radial deflections of the stationary seal ring relative to the housing due to thermal and pressure effects.
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Borg-Warner Corporation
Burgess Aubrey L.
Smith Robert I.
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