Jet powered marine propulsion unit

Details Jet powered marine propulsion unit Jet powered marine propulsion unit

1974-07-31

1976-08-31

Blix, Trygve M.

115 34B, B63H 1108

Patent

active

039773531

ABSTRACT:
A jet powered marine propulsion unit includes a pair of spaced parallel conduits extending longitudinally through a ship with intakes adjacent the bow of the ship. A tubular propeller is mounted in the conduits with blades extending inwardly toward the axis of the propeller. The propellers are chain driven from the gear box of a diesel engine. The conduits adjacent their outlet are provided with a plurality of spaced parallel stationary blades arranged parallel to the axis of the conduit to eliminate all swirling action of the jet fluid prior to its expulsion in a propelling jet. The tubular propellers are conical in form to provide a reduced diameter at their outlet ends.

REFERENCES:
patent: 1326730 (1919-12-01), Helguera
patent: 2636467 (1953-04-01), Johnson
patent: 2656809 (1953-10-01), Frasure
patent: 3155065 (1964-11-01), Strumskis
patent: 3185122 (1965-05-01), Pleuger
patent: 3328961 (1967-07-01), Aschauer

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