Exhaust system for small vessel

Details Exhaust system for small vessel Exhaust system for small vessel

1989-04-11

1991-03-05

Basinger, Sherman

Marine propulsion

Means for accomodating or moving engine fluids

Cooling for engine

440 89, B63B 3572

Patent

active

049973991

ABSTRACT:
A small watercraft having a number of embodiments of exhaust systems into which coolant from the engine are discharged and which insure that water cannot enter the exhaust ports in the event the watercraft becomes displaced. In all embodiments, a water accumulating volume surrounds the discharge end of the exhaust pipe within an expansion chamber for trapping water in the event the watercraft becomes displaced from its normal condition and for return of the water therefrom upon erection of the watercraft. In a number of embodiments, gravity operated normally open control valves are also provided for closing the end of the exhaust pipe in the event the watercraft becomes displaced from its normal upright condition so as to insure that water cannot enter the exhaust ports of the engine.

REFERENCES:
patent: 3262413 (1966-07-01), Douglas et al.
patent: 3623447 (1971-11-01), Jacobson
patent: 4023353 (1977-05-01), Hall
patent: 4274357 (1981-06-01), Dawson
patent: 4498876 (1985-02-01), Zemlicka
patent: 4811560 (1989-03-01), Nakase et al.

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