Rotary shaft face seal

Details Rotary shaft face seal Rotary shaft face seal

1976-08-20

1977-05-31

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277133, F16J 1534

Patent

active

040265641

ABSTRACT:
A rotary shaft face seal in which a rotor on the shaft has an annular seal face which is coaxial with the axis of rotation of the shaft while a stator is eccentrically mounted, relative to the shaft axis of rotation, on an eccentric tubular extension of a partition. The stator is slidable on the tubular extension and has an annular-shaped seal face which is also eccentric to the shaft axis of rotation. Compression springs urge the stator to push the annular-shaped seal face against the seal face of the rotor while pressurized fluid is forced by these seal faces. As the rotor rotates the eccentric, annular-shaped seal face of the stator progressively uncovers portions of the seal face, on the rotor, which were previously covered thereby allowing these portions to cool and thereby promoting lubrication of the relatively sliding seal faces.

REFERENCES:
patent: 2768011 (1956-10-01), Mosher
patent: 3410566 (1968-11-01), Wiese
patent: 3751045 (1973-08-01), Lindenboom

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