Face seal with angled grooves and shallow annular groove

Details Face seal with angled grooves and shallow annular groove Face seal with angled grooves and shallow annular groove

1995-05-19

1996-09-17

DePumpo, Daniel G.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 81R, F16J 1534

Patent

active

055561110

ABSTRACT:
A non-contacting grooved face seal for a shaft rotating at a high pressure and high speed with a combination of two groove patterns on one of the two sealing faces of mating sealing rings; one pattern being relatively deep angled grooves, and the other pattern begin a relatively shallow annular groove. The relatively deep groove pattern is optimized for hydrodynamic operation and on shaft rotation pumps the sealed fluid between the sealing faces to set the running clearance. The relatively shallow pattern is designed to hydrostatically prevent a friction lock of the sealing faces at starting and stopping of shaft rotation by admitting controlled amount of sealed fluid between the sealing faces when the shaft is at or near to a stationary condition.

REFERENCES:
patent: 3033577 (1962-05-01), Spiess
patent: 3109658 (1963-11-01), Barrett et al.
patent: 3499653 (1970-03-01), Gardner
patent: 3527465 (1970-09-01), Guinard
patent: 3675935 (1972-07-01), Ludwig et al.
patent: 3744805 (1973-07-01), Heinrich
patent: 3751045 (1973-08-01), Lindebaum
patent: 3782737 (1974-01-01), Ludwig et al.
patent: 3804424 (1974-04-01), Gardner
patent: 3894741 (1975-07-01), McHugh
patent: 4212475 (1980-07-01), Sedy
patent: 4406466 (1983-09-01), Geary, Jr.
patent: 4426087 (1984-01-01), Sargent et al.
patent: 4523764 (1985-06-01), Albers et al.
patent: 4889348 (1989-12-01), Amundson et al.
patent: 5066026 (1991-11-01), Heck et al.
patent: 5090712 (1992-02-01), Pecht et al.
patent: 5092612 (1992-03-01), Victor et al.
patent: 5133562 (1992-07-01), Lipschitz
patent: 5137284 (1992-08-01), Holder
patent: 5143384 (1992-09-01), Lipschitz
patent: 5169159 (1992-12-01), Pope et al.
patent: 5174584 (1992-12-01), Lahrman
patent: 5180173 (1993-01-01), Kimura et al.
patent: 5201531 (1993-04-01), Lai
patent: 5222743 (1993-06-01), Goldswain et al.
patent: 5224714 (1993-07-01), Kimura et al.

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