Low flow cooling system and apparatus

Details Low flow cooling system and apparatus Low flow cooling system and apparatus

1983-09-16

1985-06-04

Cuchlinski, Jr., William A.

Internal-combustion engines

Cooling

Interrelated coolant flow and throttle control

123 4131, 123 4133, 165 43, 236 345, F01P 312, F01P 716

Patent

active

045207674

ABSTRACT:
The disclosure illustrates a cooling system for a turbocharged diesel engine having an aftercooler and an oil cooler. The cooling system is defined by two flow loops, one for the engine and the other for cooling purposes. An engine driven pump circulates a coolant through the engine block and cylinder heads. The pump also circulates coolant through the cooling loop which includes the engine oil cooler immediately upstream of a radiator and bypass line. The aftercooler is downstream of the radiator and bypass line. Placement of the oil cooler ahead of the radiator and bypass line produces a higher temperature potential which permits a reduction in radiator size in addition to other benefits. A flow control logic system embodied in a dual thermostat arrangement ahead of the radiator and bypass line minimizes mixing of bypass flow with radiator flow and reduces radiator flow rates to permit low aftercooler temperatures that hithertofore have not been achievable.

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patent: 4032068 (1977-06-01), Luchtenberg et al.
patent: 4370950 (1983-02-01), Furukubo

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