Fan Clutch

During the driving of the car, due to changes in environmental conditions and operating conditions, the thermal condition of the engine is also changing. Therefore, the cooling intensity of the engine must be adjusted at any time. For example, in the hot summer, when the engine is working at low speed and heavy load, and the temperature of the coolant is high, the fan should rotate at a high speed to increase the cooling air volume and enhance the heat dissipation capacity of the radiator; while in the cold winter, the coolant temperature is relatively high. When it is low, or when the car is driving at high speed with strong oncoming wind blowing over the radiator, it becomes meaningless for the fan to continue working. It not only consumes engine power in vain, but also produces a lot of noise. Tests have proved that the water cooling system only needs the fan to work 25% of the time, and the fan needs to work for a shorter time in winter. Therefore, it is very important to adjust the cooling intensity of the engine at any time according to the thermal condition of the engine. Installing a silicone oil fan clutch between the fan pulley and the cooling fan is one of the ways to achieve this adjustment.