Heat exchanger for marine propulsion engines

Details Heat exchanger for marine propulsion engines Heat exchanger for marine propulsion engines

1980-04-22

1981-12-22

Davis, Albert W.

Heat exchange

Movable heating or cooling surface

Rotary drum

165161, 165 51, 123 418, G05D 2300, F01P 716

Patent

active

043066143

ABSTRACT:
A heat exchanger is provided for a pressurized, closed cooling system for a marine propulsion engine. The heat exchanger includes a closed spiral passageway means for the fresh cooling water drawn from the lake or other water body. An outer housing encloses the spiral passageway and includes baffle means for directing of a coolant in a spiral path over the cooling passageway means within the housing. The coolant is thereby cooled by the circulating cold fresh water. An air discharge passageway means is provided in the center of the spiral path. The centrifugal forces associated with the spiral flow of the cooling coolant results in the water moving outwardly within the passageway while the air tends to collect within the center thereof where it is collected and discharged by the air passageway means for automatic separation and removal of the air.

REFERENCES:
patent: 1893484 (1933-01-01), Belt
patent: 2104974 (1938-01-01), Dawes
patent: 2513124 (1950-06-01), Weiks
patent: 3392777 (1968-07-01), Edgemond et al.
patent: 3802499 (1974-04-01), Garcea
patent: 3875759 (1975-04-01), Malcosky et al.

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