Working Mechanism of Car Engine Water Pump

The car engine water pump plays a core role in the automobile cooling system. Its main function is to promote the circulation of coolant and ensure that the engine works within a stable temperature range.

1. The core of the water circulation system: The car engine water pump is the power source of the cooling water circulation system. It is driven by the fan belt to extract the high-temperature coolant inside the engine and introduce new coolant at the same time, forming a continuous circulation process.

2. Collaborative work with the thermostat: In the early stage of engine startup, in order to quickly heat up, the thermostat next to the car engine water pump will remain closed, so that the coolant only circulates inside the engine. Once the engine temperature reaches the preset value (such as above 95 degrees), the thermostat will open, allowing the high-temperature coolant to flow into the radiator water tank, and the heat will be taken away by the cold air flowing through.

3. Brief description of the working principle: The car engine water pump is driven by a pulley to rotate the water pump bearing and impeller. When the impeller rotates, it uses centrifugal force to throw the coolant to the edge of the water pump housing, thereby generating pressure, pushing the coolant out through the outlet or water pipe, forming a circulation flow of the coolant.

In short, the car engine water pump is an indispensable part of the automobile cooling system. It plays an important role in maintaining the engine at a suitable operating temperature, ensuring the normal operation of the engine and extending the service life of the engine.