Water jacket arrangement for marine two cycle internal combustio

Details Water jacket arrangement for marine two cycle internal combustio Water jacket arrangement for marine two cycle internal combustio

1990-02-16

1991-09-17

Kamen, Noah P.

Internal-combustion engines

Cooling

With jacketed head and/or cylinder

123 4108, 123175P, 60321, F02B 7518

Patent

active

050484672

ABSTRACT:
An outboard motor having an improved cooling system wherein liquid coolant is circulated through an exhaust manifold cooling jacket then through a cylinder head cooling jacket and then through an upper portion of the cylnder block cooling jacket. A thermostatic valve controls the flow from the upper cylinder block cooling jacket through a lower cylinder block cooling jacket so as to avoid quenching of the intake charge by coolant which has not reached operating temperature.

REFERENCES:
patent: 2741231 (1956-04-01), Watkins
patent: 3358654 (1967-12-01), Shanahan et al.
patent: 4167160 (1979-09-01), Matsushita et al.
patent: 4312304 (1982-01-01), Tyner
patent: 4690109 (1987-09-01), Ogasahara et al.

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