Thrust director unit for a marine vessel

Details Thrust director unit for a marine vessel Thrust director unit for a marine vessel

1996-06-17

1997-07-01

Swinehart, Edwin L.

Ships

Steering mechanism

Fluid pressure

440 43, B63H 2546

Patent

active

056426844

ABSTRACT:
An improved thrust director unit is provided for discharging a directionally adjustable water jet flow from the hull of a marine vessel to generate a thrust reaction force for close-quarter maneuvering and/or propulsion of the vessel. The unit comprises a thruster housing having an outlet through which the jet flow is discharged, wherein the outlet is defined by diverging fore and aft walls to permit angularly forward or rearward jet flow discharge for vessel propulsion. At least two deflector vanes are movable together within the housing outlet and cooperate therewith to define a directionally adjustable discharge flow path for selective jet flow discharge in a sideward direction to produce a sideward thrust, or in a forwardly or rearwardly angled direction to respectively produce a reverse or forward propulsion thrust. In the sideward thrust position, the discharge flow path has a nondiverging cross section and is isolated from the diverging fore-aft walls of the housing outlet.

REFERENCES:
patent: 368678 (1887-08-01), McDougall
patent: 1344518 (1920-06-01), Rees
patent: 4056073 (1977-11-01), Dashew et al.
patent: 4214544 (1980-07-01), Dashew et al.
patent: 4315476 (1982-02-01), Van Der Tak
patent: 4423696 (1984-01-01), Aker
patent: 4455960 (1984-06-01), Aker
patent: 4522141 (1985-06-01), Aker
patent: 4543900 (1985-10-01), Aker
patent: 5289793 (1994-03-01), Aker

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