Cooling system for outboard motor

Marine propulsion – Means for accomodating or moving engine fluids – Cooling for engine

Reexamination Certificate

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C440S077000, C440S08800J

Reexamination Certificate

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07438614

ABSTRACT:
A boat has an outboard motor mounted to a hull and a remotely mounted cooling air system. The outboard motor has a cowling housing an engine. The cooling air system receives air from within the hull and includes a ventilating fan box. The ventilating fan box may be located within the hull or the cowling of the outboard motor. Cooling air is routed via one or more ducts to the cowling so as to cool the engine while inhibiting moisture from the entering the cowling. The cooling air is preferably blown toward the bottom of the engine.

REFERENCES:
patent: 3964444 (1976-06-01), Hemmann et al.
patent: 4770262 (1988-09-01), Yasunaga et al.
patent: 4927392 (1990-05-01), Makihara et al.
patent: 5078629 (1992-01-01), Mondek
patent: 5129847 (1992-07-01), Mondek
patent: 5245954 (1993-09-01), Donohue
patent: 5445547 (1995-08-01), Furukawa
patent: 5660571 (1997-08-01), Nakayasu et al.
patent: 2001/0027069 (2001-10-01), Mashiko, et al.
patent: 401182192 (1989-07-01), None
patent: 2004-239156 (2004-08-01), None
Translation of JP 401182192A.

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