1. It is to ensure the circulation of engine coolant, timely remove the heat generated by combustion, and prevent engine overheating;
2. It is achieved by forcibly circulating the coolant to quickly reach the optimal operating temperature of the engine and improve fuel efficiency;
5. It is used to assist in regulating the pressure of the cooling system to avoid damage to the pipeline due to high temperature expansion;
4. It is to evenly distribute the coolant to key parts such as the radiator and cylinder block to ensure even heat dissipation;
5. It works in conjunction with the thermostat to dynamically adjust the cooling intensity according to the operating conditions, maintain stable engine operating conditions, and extend the service life.