The main function of the cooling system is to dissipate part of the heat absorbed by the heated parts in time to ensure that the engine works at the optimum temperature. The cooling system can be divided into air-cooling and water-cooling depending on the cooling medium. If the heat of the high-temperature parts in the engine is directly dissipated into the atmosphere, the cooling device is called an air-cooling system.
The device that transfers the heat to the cooling water first and then to the atmosphere for cooling is called a water cooling system. Due to the uniform cooling of the water cooling system, the effect is good, and the engine running noise is small. Currently, the water cooling system is widely used in automobile engines.