发明名称 Ship's propeller shaft sealing assembly
摘要 A shaft, and especially a ship's propeller shaft, sealing assembly which comprises a solid housing structure having a central bore for receiving the shaft, the housing structure accommodating two seals spaced axially along the bore and a void chamber between the seals. The void chamber gives an indication of seal failure and its radial extent is defined by a solid inner wall of the housing structure.
申请公布号 US4174672(A) 申请公布日期 1979.11.20
申请号 US19770861709 申请日期 1977.12.19
申请人 COX, JAMES H 发明人 COX, JAMES H
分类号 B63H23/32;B63H23/36;F16J15/00;F16J15/32;(IPC1-7):E21B33/00;F16J9/00 主分类号 B63H23/32
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