Combined azimuthing and tunnel auxillary thruster powered by int

Details Combined azimuthing and tunnel auxillary thruster powered by int Combined azimuthing and tunnel auxillary thruster powered by int

1995-01-30

1996-06-04

Avila, Stephen

Ships

Steering mechanism

Fluid pressure

440 6, B63H 2546

Patent

active

055223354

ABSTRACT:
An auxiliary thruster for a marine vessel. The auxiliary thruster includes a submersible propulsion unit which has a shroud with a propeller rotatably mounted therein. A canned electric motor is mounted between the propeller and the shroud for rotating the propeller to create thrust. A propulsion unit deploying and rotating mechanism is mounted on the hull and on the propulsion unit. The propulsion unit deploying and rotating mechanism is operable to extend the propulsion unit out of the hull and retract it into the hull and to rotate the propulsion unit to direct the thrust generated thereby in any desired direction when the thruster is in the deployed position. When the thruster is retracted, it is positioned with a tunnel extending transversely through the hull. Rotation of the propeller while in the retracted position generates laterally directed thrust through the tunnel.

REFERENCES:
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patent: 2699138 (1955-01-01), Dyer
patent: 3056374 (1962-10-01), Linhardt
patent: 3550547 (1970-12-01), Pleuger
patent: 4075971 (1978-02-01), Reginensi et al.
patent: 4208978 (1980-06-01), Eller
patent: 4274827 (1981-06-01), Catsburg
patent: 5101128 (1992-03-01), Veronesi et al.
patent: 5185545 (1993-02-01), Veronesi et al.
patent: 5220231 (1993-06-01), Veronesi et al.
patent: 5252875 (1993-10-01), Veronesi et al.

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