Side thruster of a boat

Details Side thruster of a boat Side thruster of a boat

1982-10-26

1984-09-11

Blix, Trygve M.

Ships

Steering mechanism

Fluid pressure

440 66, 440 78, 415DIG1, B63H 2546

Patent

active

044703643

ABSTRACT:
This disclosure relates to a side thruster for a ship. The thruster includes a propeller mounted in a cylindrical tunnel formed on the ship, and a housing-support is connected between the propeller and the hull of the ship for supporting the propeller in the tunnel. The housing-support extends substantially transversely of the direction of water flow through the tunnel, and it is generally elliptical in cross section. At least one enlargement is formed on the outer surface of the housing-support for reducing the effect of K/a/ rm/a/ n vortexes, and the enlargement preferably spirals around the outer surface of the housing-support.

REFERENCES:
patent: 2021309 (1935-11-01), Irgens
patent: 3127865 (1964-04-01), Pleuger
patent: 3454051 (1969-07-01), Goepfer et al.
patent: 3696325 (1972-10-01), Tallman
patent: 3884113 (1975-05-01), Fabula

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