However, if engine temperature rises above the clutch's engagement temperature setting, the fan becomes fully engaged, thus drawing a higher volume of ambient air through the vehicle's radiator, which in turn serves to maintain or lower the engine coolant temperature to an acceptable level.
The fan clutch can be driven by a belt and pulley or directly by the engine when mounted on the engine’s crankshaft.There are two types of fan clutches:viscous fan clutch(Silicone oil fan clutch) and electric fan clutch.Most fan clutches are silicone oil fan clutch on the market.
Silicone oil fan clutch, with silicone oil as a medium,utilizing the high viscosity characteristics of silicone oil to transmit torque. The temperature of the air behind the radiator is used to automatically control the separation and engagement of the fan clutch through the temperature sensor. When the temperature is low, the silicone oil does not flow, the fan clutch is separated, the fan speed is slowed down, basically idling. When the temperature is high, the viscosity of the silicone oil makes the fan clutch combine to drive the fan blades to work together to regulate the temperature of the engine.
G&W can Provide more than 300 SKU silicone oil fan clutches and some electric fan clutches for Popular European, Asian and American passenger cars and commercial trucks: AUDI, BMW, VW, FORD, DODGE, HONDA, LAND ROVER, TOYOTA etc, and offers 2 Years warranty.