Internal-combustion engines – Cooling – With jacketed head and/or cylinder
Patent
1978-04-05
1980-09-02
Lall, P. S.
Internal-combustion engines
Cooling
With jacketed head and/or cylinder
123 4108, 165114, 55191, 165DIG24, F01P 716, F28B 910
Patent
active
042201217
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: 1840940 (1932-01-01), Ecabert
patent: 2147993 (1939-02-01), Scheibe
patent: 2200620 (1940-05-01), Findley
patent: 2231501 (1941-02-01), Jepertinger
patent: 3028716 (1962-04-01), Sanderson et al.
patent: 3201919 (1965-08-01), Long
patent: 3875759 (1975-04-01), Malcosky et al.
patent: 3921708 (1975-11-01), Brenner
Brunswick Corporation
Lall P. S.
Lawler, Jr. Wm. G.
Lloyd Lewis L.
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