Bottom exhaust high speed boat

Details Bottom exhaust high speed boat Bottom exhaust high speed boat

1983-03-09

1985-04-09

Blix, Trygve M.

Marine propulsion

Means for accomodating or moving engine fluids

Means for handling exhaust gas

440 88, 114 67A, 114 62, 114291, 114288, B63B 134

Patent

active

045099278

ABSTRACT:
A bottom exhaust type high speed boat has a hull including a grooved bottom. The engine exhaust pipe extends into a midportion of the grooved bottom. A duct fixed to the surface of the hull extends between the opening of the exhaust pipe and the front of the grooved bottom for transporting exhaust gases to the front of the grooved bottom. The grooved bottom is separated into a forward part and a rearward part, having different depths, by a stepped surface. The exhaust opening is on the rearward part whereas the duct is on the forward part. Gas leakage prevention grooves surround the grooved bottom. A triangular projection having dovetail sides extends from the grooved bottom and the engine propeller is positioned on the projection.

REFERENCES:
patent: 1003364 (1911-09-01), Langston
patent: 1069945 (1913-08-01), Hall
patent: 1737180 (1929-11-01), Willis
patent: 1766360 (1930-06-01), Schipper
patent: 2450665 (1948-10-01), Jutte
patent: 4165703 (1979-08-01), Burg

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