Non-contacting mechanical face seal of the gap-type

Details Non-contacting mechanical face seal of the gap-type Non-contacting mechanical face seal of the gap-type

1991-10-30

1993-09-21

Footland, Lenard A.

Bearings

Rotary bearing

Fluid bearing

384138, 384139, 384140, 384308, F16C 1706

Patent

active

052462951

ABSTRACT:
A rotary mechanical face seal for preventing leakage of a fluid, either liquid or gas, across two relatively rotating surfaces. The seal is of the non-contacting mechanical type in which a predetermined spacing is maintained between the relatively rotatable sealing washers by formation of a pressurized fluid film between the relatively rotating surfaces. The opposed faces are constructed to provide a separation of the faces at start-up and thereby prevent damage or destruction to the faces before design pressures are achieved. This is achieved by providing at least one of the opposed faces with a deflection bearing portion which causes the necessary deflections under load. The bearing portion comprises a spaced series of lift pad sections. A variety of lift pad constructions can be used. The seal also includes a hydrodynamic radial bearing which centers the shaft in the static state to avoid shaft runout.

REFERENCES:
patent: 2881014 (1959-04-01), Amirault et al.
patent: 3751045 (1973-08-01), Lindeboom
patent: 4114900 (1978-09-01), Wiese
patent: 4252385 (1981-02-01), Leitzel
patent: 4260166 (1981-04-01), Etsion
patent: 4277111 (1981-07-01), Gray et al.
patent: 4632404 (1986-12-01), Feldle et al.
patent: 4643437 (1987-02-01), Salant et al.
patent: 4659092 (1987-04-01), Wallace et al.
patent: 4676668 (1987-06-01), Ide
patent: 4738453 (1988-04-01), Ide
patent: 4792146 (1988-12-01), Lebeck et al.

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