COOLING SYSTEM FOR VEHICULAR ENGINE

摘要

PROBLEM TO BE SOLVED: To reduce energy loss and attain the power reduction of a water pump, etc., by decreasing turbulent flow frictional resistance of coolant in a circulation channel and the like. SOLUTION: A cooling system for vehicular engine is provided with a main circulation channel (main water channel 3) which circulates coolant at least between a main water jacket and a radiator 4 of an engine 1 and can be opened and closed by a thermostat 5, and an auxiliary circulation channel (first and second auxiliary channels 6 and 9) which circulates coolant at least between the main water jacket and a heater core 10 of the engine 1. In the cooling system, surfactant which can form a giant structure among plural bar micells is contained in the coolant.