EP 1256518 A2 20021113 - Stern tube shaft sealing apparatus
Title (en)
Stern tube shaft sealing apparatus
Title (de)
Dichtung für ein Stevenrohr
Title (fr)
Presse-étoupe pour tube d'étambot
Publication
Application
Priority
JP 2001141109 A 20010511
Abstract (en)
An apparatus for sealing a shaft for a stern tube is disclosed, comprising: a case (32) arranged so as to surround an outer circumference of a propeller shaft (2) of the stern tube; a water seal (34), an oil seal (36), and an intermediate seal (35) provided between the water seal (34) and the oil seal (36) at an inner circumference of the case (32); characterized in that the oil seal (36) and the intermediate seal (35) are made of rubber elastic bodies and provided with bases (361, 351) held by the case (32) and seal lips (362, 352) slidably contacting at a side of the propeller shaft (2), the seal lip (362) of the oil seal (36) facing to an inside of a hull, and the seal lip (352) of the intermediate seal (35) facing to a side of the stern, wherein an air chamber (C) is bounded between the oil seal (36) and the intermediate seal (35), and wherein an air supplier (39) for supplying fluid having a higher pressure than in a drain chamber (B) is connected to the air chamber (C) (Fig. 1). <IMAGE>
IPC 1-7
IPC 8 full level
B63B 59/00 (2006.01); B63H 23/32 (2006.01); B63H 23/36 (2006.01); F16J 15/32 (2006.01); F16J 15/3232 (2016.01); F16J 15/324 (2016.01)
CPC (source: EP KR)
B63B 59/00 (2013.01 - KR); B63H 23/321 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1256518 A2 20021113; EP 1256518 A3 20030903; JP 2002340199 A 20021127; KR 20020086236 A 20021118
DOCDB simple family (application)
EP 02009400 A 20020425; JP 2001141109 A 20010511; KR 20020024602 A 20020504