Seal arrangement

Details Seal arrangement Seal arrangement

1977-07-05

1978-06-20

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 74, 277 96, F16J 1540

Patent

active

040958060

ABSTRACT:
A hydraulically balanced face type shaft seal is provided in which the opening and closing seal face areas retain concentricity with each other in the event of lateral shaft displacement. All of the areas affected by the hydraulic force balance are embodied either by the rotating or stationary seal member, and the radial width of the sealing face of a second seal member is sufficiently wider than that of the first member so as to preclude runoff at maximum lateral displacement of the shaft at the seal.

REFERENCES:
patent: 3093382 (1963-06-01), Macks
patent: 3179422 (1965-04-01), Phillips
patent: 3495841 (1970-02-01), Lindeboom
patent: 3511510 (1970-05-01), Lindeboom
patent: 3685839 (1972-08-01), Frei
patent: 3917289 (1975-11-01), Ivanov et al.
patent: 3926442 (1975-12-01), Muller

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