What is the function of the car's auxiliary water tank?
2 Answers
The auxiliary water tank of a car is a component of the engine cooling system, serving to balance the pressure in the radiator. The specific functions of the auxiliary water tank are as follows: 1. It acts as a medium for the inflow and outflow of coolant. When the engine temperature rises and the liquid expands, part of the coolant flows into the auxiliary water tank through the radiator cap; when the temperature drops and the cooling system pressure becomes negative, the system draws the coolant from the auxiliary water tank back into the cooling system through the radiator cap. 2. It indicates the coolant level in the radiator. The auxiliary water tank has corresponding markings to show the liquid level, providing a visual indication of whether the radiator has sufficient coolant. Car owners need to regularly check the liquid level in the auxiliary water tank to determine if the radiator needs to be topped up with water.
The overflow tank serves multiple important functions, acting like a little assistant for the car's cooling system, primarily used to store coolant. When the engine's operating temperature rises, the coolant heats up and expands. Without a place to go, this could lead to excessive pressure, but the overflow tank absorbs this excess liquid, preventing hoses from bursting or leaks. Additionally, as coolant can gradually decrease due to evaporation or minor leaks, the overflow tank provides a reserve space, allowing the system to replenish as needed and preventing air from entering, which could impair cooling. I often notice this issue when driving on highways, especially in summer traffic jams when the engine heats up—the overflow tank proves invaluable, ensuring the car doesn't suddenly overheat and break down. Overall, while it may seem insignificant, the system is prone to malfunctions without it, so it's essential to regularly check the fluid level.
