The main function of the upper water pipe of the car water tank is to connect the upper water chamber of the water tank with the outlet of the engine water pump to ensure that the coolant can flow smoothly from the engine back to the radiator. To be specific: one end is connected to the upper water chamber of the water tank, the other end is connected to the outlet of the engine water channel pump. This design makes the engine adopts the cooling mode of down in and up out, which improves the heat dissipation efficiency and reduces the influence on the water pump
The working principle of the car radiator upper hose is based on the circulation of the cooling water. coolant circulation : the coolant enters the engine from the lower water pipe of the water tank through the pump for cooling, and then returns from the engine to the water tank through the upper water pipe to form a closed-loop cooling system. This design is based on the principle of hot water rising, so that the upper part of the radiator temperature is higher, the lower part temperature is lower, improve the heat dissipation efficiency, and reduce the impact on the pump
