Stern tube seal device

Details Stern tube seal device Stern tube seal device

B - Operations, Transporting

63

H

277/17

B63H 23/36 (2006.01) B63H 23/32 (2006.01) F16J 15/00 (2006.01) F16J 15/40 (2006.01) F16J 15/46 (2006.01)

Patent

CA 1312344

SPECIFICATION TITLE OF THE INVENTION STERN TUBE SEAL DEVICE ABSTRACT OF THE DISCLOSURE Disclosed is a stern tube seal device wherein an annular case member is arranged in the outer periphery of a shaft, a plurality of seal members are disposed in an annular gap formed between the shaft and the case member to form a multiple stage seal portion against sea water and lubricating oil, and pressure fluid is fed into the seal portion so as to enhance seal effect by pressure of the fluid. BACKGROUND OF THE INVENTION The present invention relates to a stern tube seal device. One of prior art seal devices of this kind heretofore known has been designed so that a plurality flip seals in close contact with and slidable relative to the shaft are arranged or mechanical seals are disposed so as to prevent both leakings, one being leaking of sea water into a machine (into a ship) and the other being leaking of lubricating oil (bearing oil) outside the ship. - 1 -

452497

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