Automobile return pipe is an important part of cooling system, also known as coolant return pipe or coolant exhaust pipe. It is usually connected between the engine and the coolant container to regulate the flow and pressure of coolant.
The main functions of the return pipe are as follows:
1. Coolant circulation: The return pipe is responsible for circulating the coolant from the engine back to the cooling system to ensure the continuous flow of coolant. When the engine is running, the coolant will flow back to the cooling system from the engine through the return pipe, then dissipate heat through the radiator, and finally circulate to the engine again, forming a closed circulation system.
2. Coolant exhaust: The return pipe also plays the role of removing bubbles in the cooling system. In the cooling system, bubbles will be generated due to the temperature change and the flow of coolant. These bubbles will affect the flow of coolant and the heat dissipation effect. By designing a special structure, the return pipe can help the bubbles in the cooling system to be discharged smoothly and keep the coolant flowing smoothly.
3. Pressure adjustment: The return pipe also plays the role of adjusting the pressure of the cooling system. The pressure in the cooling system is caused by the flow of coolant and temperature change. By designing appropriate structure and valve, the pressure of the cooling system can be adjusted and kept within the normal range. This helps to prevent the cooling system from over-pressure or under-pressure, and protect the normal operation of the cooling system and the safe operation of the engine
In a word, the automobile return pipe plays a very important role in the cooling system. It is responsible for regulating the flow and pressure of coolant and keeping the cooling system in normal working condition. The failure of the return pipe may lead to cooling effect decline, engine overheating, coolant leakage and other problems, so it is very important to check and maintain the integrity and functionality of the return pipe regularly.
