What are the parts of a car? What are their functions?

A car consists of four parts: engine, chassis, body and tires.

1, engine function: the power plant of an automobile can convert other forms of energy into mechanical energy.

2. Chassis function: The function of the chassis is to support and install the automobile engine and its components, form the overall shape of the automobile, accept the power of the engine to make the automobile move, and ensure normal driving.

3. Body function: The body is installed on the frame of the chassis for drivers and passengers to ride or load goods. The body of passenger cars and buses is generally a whole structure, and the body of freight cars is generally composed of cab and cargo box.

4. The function of the tire: the tire directly contacts the road surface, and together with the automobile suspension, it can reduce the impact of the automobile when driving, and ensure that the automobile has good ride comfort and ride comfort; Ensure the good adhesion between the wheels and the road surface, and improve the traction, braking and passability of the car; Bear the weight of the car.

Extended data

Technical characteristics of automobile engines;

1, the engine valve drive mechanism adopts the structure of hydraulic bearing ball rocker arm. Compared with the hydraulic tappet valve drive mechanism widely used in general gasoline engines, this new valve drive mechanism has the advantage of relatively small friction torque, so it requires less driving force, which can effectively reduce the power consumption and fuel consumption of the engine.

2. Replacing the traditional metal intake pipe with the plastic intake pipe made of special materials and technology can not only achieve the effect of lightweight, but also effectively reduce the wall resistance of the intake pipe, improve the intake efficiency and increase the engine power.

3. The expanding and breaking connecting rod processed by advanced technology is expanded and broken by special expanding and breaking equipment instead of the original sawing and grinding process. In this way, the serrated "Huff" surface of the connecting rod can be used to ensure absolute and accurate fastening and positioning, thus reducing friction and prolonging the service life of the connecting rod.

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