Sealing device for shaft

Details Sealing device for shaft Sealing device for shaft

1978-06-15

1979-09-18

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 15, 277 27, 277 28, 277 72FM, 277153, F16J 1532, F16J 1546

Patent

active

041680707

ABSTRACT:
The sealing oil in a sealing device for an underwater propeller shaft as maintained at the optimum operating pressure by providing a pressure increasing device in which an oil chamber communicating with the sealing oil and a sea water chamber communicating with the sea water in the vicinity of the propeller shaft are separated by a movable member, e.g., a bellows.

REFERENCES:
patent: 3088744 (1963-05-01), Ezekiel et al.
patent: 3176996 (1965-04-01), Barnett
patent: 3403915 (1968-10-01), Roberts
patent: 3631834 (1972-01-01), Gardner et al.

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