Rotary mechanical seals

Details Rotary mechanical seals Rotary mechanical seals

1982-05-20

1984-05-01

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 961, F16J 1534

Patent

active

044456956

ABSTRACT:
A seal assembly primarily for use with the stern bearing of a ship comprises inner and outer face seal elements mounted on a rubber body for rotation with the propeller shaft. Any oil from the bearing which leaks past the inner element, or sea water which leaks past the outer element, enters a void space formed by pockets in the rubber body. These pockets are separated by inclined vanes which act as a centrifugal pump to expel the leakage material through a passage in a seat for the seals. The assembly can also be used in other applications where the leakage material is corrosive or is likely to cause blockages.

REFERENCES:
patent: 2919148 (1959-12-01), Smith
patent: 3362718 (1968-01-01), Little

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