The role of the automotive cooling system is to use the coolant as a temperature transmission carrier to dissipate part of the heat absorbed by the heated parts in time to ensure that the engine works at the most suitable temperature.

The cooling system is mainly composed of water pump, radiator, cooling fan, compensation water tank, thermostat, water jacket in engine block and cylinder head, and accessory devices.

Water pump: The role of the water pump is to pressurize the cooling fluid and ensure its circulation in the cooling system.

Cooling fan: When the temperature of the water tank is too high, the cooling fan is turned on according to the signal of the temperature sensor, and the rotation of the fan helps the water tank to dissipate heat.

Water tank: When the engine is working, the coolant flows inside the water tank core, the air passes outside the water tank core, and the hot coolant in the water tank becomes cold due to heat dissipation to the air.