Non-contacting mechanical face seal

Details Non-contacting mechanical face seal Non-contacting mechanical face seal

1995-08-14

1997-02-25

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

056053398

ABSTRACT:
Improved spiral grooves in a mechanical face seal have plural terminal corners which more evenly distribute the fluid pressure generated within the seal gap into discrete pressure zones which are radially displaced and may also be circumferentially displaced from the other pressure zones generated by the same groove. Alternative embodiments include grooves having surfaces of varying depths wherein each of the plural terminal groove corners is associated with a section of the groove having a surface at a particular depth.

REFERENCES:
patent: 5201531 (1993-04-01), Lai
patent: 5222743 (1993-06-01), Goldswain et al.
patent: 5441283 (1995-08-01), Pecht et al.

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