Bushing for trapped bushing seal

Details Bushing for trapped bushing seal Bushing for trapped bushing seal

1993-03-03

1994-11-29

Cummings, Scott W.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277173, 277174, F16J 1544

Patent

active

053683137

ABSTRACT:
An improved stepped bushing for a trapped bushing seal utilized in connection with compressors incorporates pressure dams on the interior circumference of the bushing. A plurality of pressure dams are located in both the inner bushing segment and the outer bushing segment to completely eliminate cross coupling and the resultant subsynchronous vibration.

REFERENCES:
patent: 3575424 (1971-04-01), Taschenberg
patent: 3724861 (1973-04-01), Lesiecki
patent: 3756673 (1973-09-01), Strub
patent: 4082296 (1978-04-01), Stein
patent: 4199152 (1980-04-01), Catterfeld
patent: 4502693 (1985-03-01), Lesiecki et al.
patent: 4660838 (1987-04-01), Katayama et al.
patent: 4768790 (1988-09-01), Netzel et al.
patent: 5169159 (1992-12-01), Pope et al.

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