FIELD: engines and pumps.
SUBSTANCE: engine cooling system comprises closed hot circuit and open cold circuit of coolant circulation. Note here that closed hot circuit of coolant circulation comprises circulation pump, engine cooling jacket, supercharge air cooler, oil-to-water cooler, water-to-water cooler, thermostat and expansion tank connected to suction pipeline. Besides, is comprises analyser of coolant chemical properties while expansion tank is equipped with vessel with concentrate additive to coolant and needle valve to control feed of said additive into expansion tank that is connected to control unit output. Inputs of said unit are connected to first and third temperature gages. Pressure gages are connected to second and fourth inputs. Analyser of coolant chemical properties is connected to fifth input. Said analyser is arranged on pipeline withdrawing coolant from engine. Note here that expansion tank accommodates electrically driven mixer started by control unit signal on feeding additive concentrate into tank for better mixing.
EFFECT: higher reliability due to higher quality of heat carrier.
2 dwg
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