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A radiator fan is installed in the car at home, which is a device to help the air conditioner in the car dissipate heat and cool down. Want to know how the radiator fan works?
The signal is transmitted to the computer based on the water temperature, engine load, and the engine computer controls the fan high and low speed relays, and is also affected by the air conditioner pressure. The principle is this. The air conditioner computer receives the air conditioner pressure switch, indoor and outdoor temperature, etc. The air conditioner signal is transmitted to the engine computer. The engine receives the signal to turn on, controls the compressor, and controls the fan relay to close. When the air conditioner pressure is increased by the environment and its own influence, the engine computer receives the air conditioner computer signal to control the fan high-speed relay Suction, the fan runs at high speed.
The car engine radiator is composed of three parts: the water inlet chamber, the water outlet chamber and the radiator core. The coolant flows in the radiator core, and the air passes outside the radiator. The hot coolant becomes cold by dissipating heat to the air, and the cold air heats up by absorbing the heat radiated by the coolant. According to the direction of coolant flow in the radiator, the radiator can be divided into two types: longitudinal flow and cross flow. According to the structure of the radiator core, the radiator can be divided into a tube fin type radiator core, a tube strip type radiator core and a plate radiator core. There are two main types of car radiators: aluminum and copper. The former is used in general passenger cars and the latter is used in large commercial vehicles.
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