Protective shrouding with debris diverting inflow vanes for pump

Marine propulsion – Jet drive – Having means to prevent clogging

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Details

440 66, B63H 1101

Patent

active

061590606

ABSTRACT:
A pump-jet type of outboard propulsion unit within a surrounding fluid mem for marine craft or the like, is protectively enclosed within cylindrical shrouding which forms an axial flow passage about the exhaust channel of the propulsion unit through which flow of the fluid medium is induced by rotation of impeller blades. Inflow of the fluid medium to the flow passage is modified at an inlet end of the shrouding by a plurality of angularly spaced vanes attached thereto and extending forwardly therefrom at an angle.

REFERENCES:
patent: 4427393 (1984-01-01), May
patent: 4680017 (1987-07-01), Eller
patent: 5928042 (1999-07-01), Quiggins
patent: 5954554 (1999-09-01), Bates

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