Outboard motor

Details Outboard motor Outboard motor

1982-09-02

1985-02-12

Blix, Trygve M.

Marine propulsion

Means for accomodating or moving engine fluids

Cooling for engine

B63H 2110

Patent

active

044988753

ABSTRACT:
Two embodiments of water-cooled, four-cycle internal combustion engines used for outboard motors. In each embodiment, an arrangement is provided that offers a compact nature and which uses the coolant delivered to the engine for cooling the oil in the oil pan. In addition, an arrangement is provided whereby the exhaust pipe may pass through the oil pan and yet avoid significant heat transfer from the exhaust system to the lubricating system. In each embodiment of the invention, coolant is delivered to this clearance for further cooling the exhaust system. In one embodiment of the invention, an arrangement is provided for limiting the discharge of coolant from the clearance so as to maintain a level of coolant around the exhaust pipe.

REFERENCES:
patent: 3310022 (1967-03-01), Kollman

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