Water cooled, four-cycle internal combustion engine for outboard

Details Water cooled, four-cycle internal combustion engine for outboard Water cooled, four-cycle internal combustion engine for outboard

1982-09-02

1986-05-13

Basinger, Sherman D.

Marine propulsion

Means for accomodating or moving engine fluids

Cooling for engine

B63H 2110

Patent

active

045883858

ABSTRACT:
A compact improved four-cycle internal combustion engine of the water-cooled type for use with an outboard motor. The engine includes an exhaust arrangement wherein the exhaust gases are returned from the cylinder head to the cylinder block in proximity to a cooling jacket for cooling the exhaust gases before delivery into the lower unit. In addition, the cooling jacket and method of casting the cylinder head provides an opening in which a sacrificial anode may be placed to protect the engine from corrosion, particularly when operated in salt water. The engine is given a compact arrangement, in part, by positioning the thermostat of the cooling system in the area between the driving and slack sides of the belt that drives the overhead camshaft. The lubricating system also includes a baffled cover plate for the camshaft that receives oil flung from the camshaft and redistributes it to the valve train for lubrication.

REFERENCES:
patent: 2227247 (1940-12-01), Conover
patent: 2322961 (1943-06-01), Yingling
patent: 2496434 (1950-02-01), Bosma
patent: 2691954 (1954-10-01), Shively
patent: 2968292 (1961-01-01), Kelly
patent: 4382796 (1983-05-01), Blanchard

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