Motor for watercrafts

Details Motor for watercrafts Motor for watercrafts

1986-07-15

1988-09-27

Basinger, Sherman D.

Marine propulsion

Means for accomodating or moving engine fluids

Cooling for engine

440 89, 114270, 60320, 60322, B63H 2132, B63H 2138

Patent

active

047738839

ABSTRACT:
Two embodiments of small watercraft incorporating an improved exhaust system for handling the exhaust gases from the engine. In each embodiment, at least one expansion chamber is provided for silencing and cooling the exhaust gases and exhaust gases are delivered from the engine exhaust port to the expansion chamber through a horizontally extending exhaust conduit that has its outlet opening communicating with the expansion chamber at a position spaced substantial distances from the vertically extending side and end walls of the expansion chamber for precluding the likelihood of entry of water into the engine cylinders through the exhaust system. In one embodiment, two such expansion chambers are employed.

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patent: 4506749 (1985-03-01), Steven
patent: 4678442 (1987-07-01), Nishida et al.
patent: 4707986 (1987-11-01), Takada et al.

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