Gas film hydraulic shaft seal

Details Gas film hydraulic shaft seal Gas film hydraulic shaft seal

2005-03-01

2005-03-01

Pickard, Alison (Department: 3676)

Seal for a joint or juncture

Seal between relatively movable parts

Close proximity seal

C277S418000, C415S171100

Reexamination Certificate

active

06860483

ABSTRACT:
The present invention relates to a seal system for use in rotary machines. The seal system includes a first member and a second member forming an annulus, a high pressure region and a low pressure region in the annulus, and a liquid seal intermediate the first and second members and intermediate the high pressure region and the low pressure region for reducing gas leakage from the high pressure region to the low pressure region.

REFERENCES:
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patent: 2873986 (1959-02-01), Murray
patent: 3694042 (1972-09-01), Rabenhorst
patent: 4335885 (1982-06-01), Heshmat
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patent: 4570947 (1986-02-01), Smith
patent: 5655852 (1997-08-01), Duffney et al.
patent: 6020664 (2000-02-01), Liu et al.
patent: 6679501 (2004-01-01), Pelstring et al.
patent: 2 125 118 (1984-02-01), None

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