FIELD: automotive industry; engine cooling and interior heating systems. SUBSTANCE: proposed system has cooling jacket, valve-thermostat, engine cooling radiator, liquid pump, interior heater radiator with electric fan. Engine warming up valve is installed in engine cooling system. Overheating valve is installed at engine radiator inlet. Heating system has two automatically controlled hydraulic liquid flow change-over switches. Heat accumulator is connected in series with heater radiator. Pump with electric drive is arranged at accumulator outlet. EFFECT: improved efficiency of operation of engine cooling system and car interior heating owing to use of multicircuit hydraulic duct and build-in heat accumulator controlled by two automatic switches. 4 dwg
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