The engine hood is made of rubber foam and aluminum foil, which can isolate the heat generated when the engine works, reduce the noise of the engine, effectively protect the paint surface of the engine hood and prevent aging. Function: 1. Air-natural gas conversion. For an object moving at high speed in the air, the air resistance and turbulence generated by the airflow around the object will directly affect the trajectory and speed. Through the hood modeling, we can effectively adjust the direction of air flow relative to the car and the blocking force to the car, and reduce the impact of air flow on the car. Through diversion, the air resistance can be decomposed into beneficial force, which is higher than the force of the front tire on the ground and is beneficial to the stability of the car. The appearance of streamlined hood is basically designed according to this principle. 2. Protect the engine and surrounding pipe fittings, etc. Under the hood, it is an important part of the car, including engine, circuit, oil circuit, braking system and transmission system. This is very important for vehicles. By improving the strength and structure of the engine hood, adverse effects such as impact, corrosion, rain and electrical interference can be fully prevented, and the normal work of the vehicle can be fully protected. 3. It's so beautiful. Vehicle design is an intuitive embodiment of vehicle value. As an important part of the overall appearance, the hood plays a vital role, which is pleasing to the eye and embodies the concept of the whole vehicle.