Ship with propeller shaft partition rings

Details Ship with propeller shaft partition rings Ship with propeller shaft partition rings

1985-12-26

1987-04-21

Barefoot, Galen

Marine propulsion

Screw propeller

Shafting

440112, 114162, B63H 2334

Patent

active

046593160

ABSTRACT:
A ship includes a rudder and a propeller having a propeller shaft arranged adjacent a stern of the ship. A bottom of stern is made shallow to expose the propeller for a long distance and the rudder is arranged in a space defined by the bottom of the stern, the propeller shaft and a propeller post supporting the propeller shaft, thereby arranging the rudder nearer to a bow of the ship than the propeller. The propeller shaft comprises oil-water partition rings encircling the propeller shaft, and a bearing for the propeller shaft is formed with circular grooves which accommodate therein the oil-water partition rings and communicate with at least one oil-water separating pressurizing tank to form a water exhausting passage on an outer side of each the partition ring and an oil exhausting passage on an inner side of the partition ring.

REFERENCES:
patent: 386991 (1888-07-01), Lamburth
patent: 1559660 (1925-11-01), Ward
patent: 2167552 (1939-07-01), Paine
patent: 3540405 (1970-11-01), Clay
patent: 3934952 (1976-01-01), Gardner
patent: 4395141 (1983-07-01), Pietsch et al.

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