Air intake device for outboard boat engine

Details Air intake device for outboard boat engine Air intake device for outboard boat engine

1997-04-29

1998-11-10

McMahon, Marguerite

Internal-combustion engines

Intake manifold

For engine having radiating cylinders

12318447, F02M 3510

Patent

active

058328904

ABSTRACT:
An air intake device for a vertically oriented multi-cylinder outboard boat engine having vertically spaced fuel intake ports. The air intake device includes a surge tank, a plurality of vertically spaced air intake pipes extending from the surge tank to the engine intake ports. The intake pipes are inclined downward from the surge tank. The bottom tangent of the lowermost intake pipe is aligned with the bottom surface of the surge tank and the vertical length of the surge tank is less than the total length from the uppermost intake port to the lowermost intake port.

REFERENCES:
patent: 5513606 (1996-05-01), Shibata
patent: 5553586 (1996-09-01), Koishikawa et al.
patent: 5630390 (1997-05-01), Tsunoda et al.
patent: 5713771 (1998-02-01), Takahashi et al.

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