The main role of the automobile grille is the intake ventilation of the water tank, engine, air conditioning, etc. . In automotive engineering, a net is used to cover the body of a car so that air can enter it. Most vehicles have a central net in the front of the car to protect the radiator and the engine. Other common meshes are located under the front bumper, in front of the wheels, in the front so that the cab is ventilated, or on the trunk lid are primarily rear-engined vehicles.
The main function of the front grille is heat dissipation and air intake. If the water temperature of the engine radiator is too high and the natural air intake alone can not fully dissipate the heat, the fan will start the auxiliary heat dissipation automatically. When the car is running, the air flows backward, the direction of the fan flow is also backward. After heat dissipation, the rising temperature of the air flow from the back of the engine cover near the windshield position, and the car under the backward flow, the heat is released.
