Mechanical seal containing a sealing face with grooved regions w

Details Mechanical seal containing a sealing face with grooved regions w Mechanical seal containing a sealing face with grooved regions w

1993-06-14

1996-03-05

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 96, 277 65, 277 93R, 277 81R, 277 94, 277 38, 277 3, F16J 1534

Patent

active

054960479

ABSTRACT:
A mechanical face seal has a first sealing ring mounted non-rotatably and sealed with respect to a shaft, a second sealing ring mounted non-rotatably and sealed with respect to a housing the second sealing ring being mounted in axial alignment and being resiliently urged into sealing engagement with the first sealing ring. The sealing face of the first sealing ring has a first and second set of grooved areas grooved areas of each set being spaced angularly around the circumference of the sealing face the grooved areas of one set being spaced angularly of the grooved areas of the other set, the grooved areas of both sets opening to one edge of the sealing face and extending part way across the sealing face, each grooved area defining a trailing edge relative to the direction of rotation (D) of the first sealing ring, the trailing edge of the grooves being inclined in the plane of the sealing face at an obtuse angle to the direction of rotation (D), the axial depth of the grooved areas of the first set being less than the axial depth of the grooved areas of the second set.

REFERENCES:
patent: 2623357 (1952-12-01), Birmann
patent: 3704019 (1972-11-01), McHugh
patent: 3804424 (1974-04-01), Gardner
patent: 3894741 (1975-07-01), McHugh
patent: 3917288 (1975-11-01), Huber et al.
patent: 4082296 (1978-04-01), Stein
patent: 4406466 (1983-09-01), Geary, Jr.
patent: 4971306 (1990-11-01), Jinnouchi et al.
patent: 5071141 (1991-12-01), Lai et al.
patent: 5092612 (1992-03-01), Victor et al.
patent: 5174584 (1992-12-01), Lahrman

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