Air intake arrangement for outboard marine engines

Details Air intake arrangement for outboard marine engines Air intake arrangement for outboard marine engines

1997-12-19

1999-07-27

Swinehart, Ed L.

Marine propulsion

Screw propeller

Propulsion unit casing

181229, 440 88, B63H 2124

Patent

active

059280433

ABSTRACT:
In an outboard marine engine, an air intake passage is mostly defined by a partition wall which extends substantially horizontally inside the engine cover so as to define an air introduction chamber above an engine room accommodating an engine. The air intake passage is defined in such a manner that the intake air is initially guided along a horizontal path between upper and lower plates, and is forced upward through an opening in the upper plate by a first vertical baffle plate extending between front edges of the upper and lower plates before it goes over a second vertical baffle plate extending from the upper plate and finally enters the engine room. Therefore, any heavier contents such as water droplets are effectively removed from the intake air by the actions of inertia and the gravitational force. Because the intake air passage is mostly defined by the partition wall, any design change in the air intake arrangement can be readily and economically accommodated by changing the partition wall.

REFERENCES:
patent: 3610198 (1971-10-01), Alexanddrowicz
patent: 4860703 (1989-08-01), Boda et al.

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