Slide ring sealing assembly with bellows and fluid pressure cont

Details Slide ring sealing assembly with bellows and fluid pressure cont Slide ring sealing assembly with bellows and fluid pressure cont

1986-04-08

1987-08-25

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 27, F16J 1536

Patent

active

046888063

ABSTRACT:
A slide ring seal for sealing the gap between a rotatable shaft (1) and a fixed wall (2) to separate a space (3) for a pressure fluid from the external space (4). The slide ring seal comprises at least one seal ring (5) mounted on a fixed wall or a shaft and at least one face ring (6) secured to said shaft or fixed wall. The seal ring and face ring are provided with sealing slide surfaces that are axially pressed against one another. Moreover, the seal ring is mounted on said fixed wall or shaft through a bellows member (7). To achieve a slide ring seal being reliable in operation and having controlled sealing properties, the bellows member (7) is isolated from the space (3) for the pressure fluid by means of a sealed space (9). Said sealed space (9) is further connected to a regulable pressure source (11) by means of a conduit (10).

REFERENCES:
patent: 1673260 (1928-06-01), Meston et al.
patent: 1891706 (1932-12-01), DeRam
patent: 2048581 (1936-07-01), Weiher
patent: 2271303 (1942-01-01), Moulet
patent: 3318604 (1967-05-01), Tracy
patent: 3526408 (1970-09-01), Tracy
patent: 4114904 (1978-09-01), Wentworth

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