Engine cooling system

Details Engine cooling system Engine cooling system

1984-05-18

1986-01-21

Lazarus, Ronald H.

Internal-combustion engines

Charge forming device

Cooling of combustible mixture

123 4129, 123 4131, F00M 3100

Patent

active

045651752

ABSTRACT:
A diesel engine (2) having a charge air cooler (34) is liquid cooled and employs a single heat exchanger (28) for cooling the coolant for both the cylinder block (4) and the charge air cooler (34). The engine block (4) is connected in a first cooling circuit which includes a pump (8) and a thermostatic valve (12), while the charge air cooler 34 is connected in a second circuit including the heat exchanger (28) and pump (30). When the coolant in the first circuit is below the operating temperature, the two circuits operate independently. When operating temperature is reached, the valve (12) opens to bring the two circuits partly in series, with the second circuit between the heat exchanger (28) and the first circuit at the downstream side of the heat exchanger, so that the charge air cooler (34) operates at a lower temperature than the engine cylinder block (4).

REFERENCES:
patent: 2063436 (1936-12-01), Hild
patent: 2070092 (1937-02-01), Ramsaur
patent: 2365166 (1944-12-01), Bay
patent: 2417237 (1947-03-01), Chandler
patent: 3134371 (1964-05-01), Crooks

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