Outboard motor

Details Outboard motor Outboard motor

1994-09-08

1996-01-30

Sotelo, Jesus D.

Marine propulsion

Means for accomodating or moving engine fluids

Cooling for engine

440 89, B63H 2138

Patent

active

054876885

ABSTRACT:
Several embodiments of outboard motors embodying four-cycle engines having an oil tank that is contained within the drive shaft housing and which is surrounded at least in part by a water cooling jacket for maintaining the oil at an acceptable temperature. The oil tank is formed with a cavity through which an exhaust pipe passes and the area between the exhaust pipe and the oil tank forms, in at least some embodiments, an expansion chamber for silencing the exhaust gases. At least in part of the exhaust pipe and/or expansion chamber is also cooled by a water cooling jacket.

REFERENCES:
patent: 3493081 (1970-02-01), Tado
patent: 5232387 (1993-08-01), Sumigawa

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