Cooling system for marine propulsion engine

Details Cooling system for marine propulsion engine Cooling system for marine propulsion engine

1993-04-02

1994-08-02

Sotelo, Jesus D.

Marine propulsion

Means for accomodating or moving engine fluids

Cooling for engine

114183R, B63H 2138

Patent

active

053340639

ABSTRACT:
A number of embodiments of cooling systems for marine propulsion units having water cooled internal combustion engines in which the cooling jacket of the engine is at least partially positioned below the level of the water in which the watercraft is operating. The described embodiments all permit draining of the engine cooling jacket when it is not being run. In some embodiments, the drain valve also controls the communication of the coolant from the body of water in which the watercraft is operating with the engine cooling jacket. Various types of pumping arrangements are disclosed for pumping the bilge and automatic valve operation is also disclosed.

REFERENCES:
patent: 3889623 (1975-06-01), Arnold
patent: 3946694 (1976-03-01), Belsky
patent: 4693690 (1987-09-01), Henderson
patent: 4850908 (1989-07-01), Nakase et al.

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