FIELD: engines and pumps.
SUBSTANCE: invention relates to separated coolant circuit (1) for internal combustion engines, which contains cylinder head water jacket (2) and engine block water jacket (3), wherein separated coolant circuit (1) has pump (4), radiator (6), control element (7), outlet housing (8) and heater (9), wherein the coolant circulates in separated coolant circuit (1). Separated coolant circuit is characterized by the fact that control element (7) is made of thermostat (12) and proportional valve separated from the thermostat, wherein the thermostat and proportional valve are arranged parallel on outlet housing (8), wherein proportional valve (12) has block water pipe (14) for engine block water jacket (3), heater pipe (16) for heater (9) and cooler pipe (17) for cooler (6), wherein thermostat (12) has connecting line (18) to cooler (6).
EFFECT: invention ensures improved operational cooling characteristics of internal combustion engine.
7 cl, 2 dwg
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