Intake apparatus of outboard motor

Details Intake apparatus of outboard motor Intake apparatus of outboard motor

1999-06-16

2000-08-08

Swinehart, Ed

Marine propulsion

Screw propeller

Propulsion unit casing

123195C, 440900, B63H 2032

Patent

active

060993723

ABSTRACT:
An outboard motor includes an engine unit in which a crank shaft in a manner that the upper end, in a state of the outboard motor to a hull, projects outside the engine unit and a rotational member such as flywheel magneto device is covered by an engine cover, and the engine unit is covered by an outboard motor cover to which an atmospheric air intake port is formed. The engine cover is composed of inner and outer wall sections between which a closed inner space is defined, the engine cover is connected to a silencer so that the closed inner space of the engine cover is communicated with an inner space of the silencer so as to define an air passage, and an intake port is formed to the air passage to be communicated with the air passage. The atmospheric air introduced through the intake port flows the air passage of the structure mentioned above towards a throttle body with reduced intake noise.

REFERENCES:
patent: 4734070 (1988-03-01), Mondek
patent: 5683277 (1997-11-01), Tsunoda et al.

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