Gas-sealed contact-free shaft seal

Details Gas-sealed contact-free shaft seal Gas-sealed contact-free shaft seal

1976-03-08

1978-06-27

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

F16J 1534

Patent

active

040970523

ABSTRACT:
A shaft seal construction, comprises a shaft housing, with a shaft rotatably supported in the housing and having a shaft ring extending around the shaft which defines a ring seal face made of berryllium copper. A packing ring of aluminum has an annular packing ring face of an oxide of the aluminum which is engaged with the ring seal face. The packing ring is supported by a flexible closure member carried by the housing and engages with the packing and provides a gas seal with the packing ring around the shaft. The spring urges the packing ring into engagement with the shaft ring.

REFERENCES:
patent: 3502342 (1970-03-01), Albert
patent: 3652183 (1972-03-01), Pottharst

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