Heat energy management circuit for motor vehicle internal combustion engine has secondary pump and radiator circuit connected to main coolant tank

摘要

The heat energy management circuit for a motor vehicle internal combustion engine (10) has a main coolant tank (2), a pump (12) with a radiator (18). The main tank has a bypass connection (20) and a heating duct with an air heater (24) and a secondary circuit (4) with a secondary radiator (60) and pump (58). The main tank and secondary circuit are connected by a heat exchange fluid circuit.