SHAFT SEAL Russian patent published in 1998 - IPC

Abstract RU 2121096 C1

FIELD: shipbuilding; general mechanical engineering for sealing-up revolving shafts. SUBSTANCE: seal includes main seal, load-bearing flexible member with clamping split ring and revolving antifriction sealing ring engageable with non-revolving antifriction sealing ring and emergency seal. Revolving antifriction sealing ring is made in form of impeller formed by radial and axial passages drilled in this ring. Non-revolving antifriction sealing ring has circulating passages. Emergency seal consists of at least two metal rings with flexible antifriction ring placed between them. Emergency seal is received by circular projection of stern tube at clearance relative to propeller shaft. EFFECT: enhanced reliability of seal. 2 dwg

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RU 2 121 096 C1

Authors

Grigor'Ev Aleksej Kuz'Mich

Akhmadishin Rustem Zakievich

Dates

1998-10-27—Published

1997-07-02—Filed