Sealing apparatus for rotating shafts, in particular stern tube

Details Sealing apparatus for rotating shafts, in particular stern tube Sealing apparatus for rotating shafts, in particular stern tube

1991-09-05

1993-05-11

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277103, 277 343, 277 81R, 440112, F16J 1546, F16J 1534

Patent

active

052094979

ABSTRACT:
Sealing device for rotating shafts, in particular stern tube seal for the propeller shafts of a ship, with a main seal and a backup seal, in which the main seal is designed as a rotating mechanical seal or as a lip seal, and the backup seal is designed as a gland seal, and the activation of the latter takes place by means of an expandable body, which can be pressurized with a hydraulic or pneumatic pressure medium, preferably as a function of the pressure of the medium to be sealed out.

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