What Are the Main Components of a Car and Their Functions?

1 Answers
JudeDella
07/30/25 5:38am
Four major components: 1. Engine: The engine is the power unit of a car. Its function is to burn fuel to generate power, which then drives the wheels through the drivetrain of the chassis, propelling the car forward. There are mainly two types of engines: gasoline engines and diesel engines. A gasoline engine consists of the crankshaft-connecting rod mechanism, valve train, fuel supply system, cooling system, lubrication system, ignition system, and starting system. A diesel engine ignites through compression, so it lacks an ignition system. 2. Chassis: The chassis supports and mounts the car engine and its various components and assemblies, forming the overall structure of the car. It receives power from the engine to enable motion and ensure normal operation. The chassis consists of four parts: the drivetrain, running gear, steering system, and braking system. 3. Body: The body is mounted on the frame of the chassis and serves to accommodate the driver, passengers, or cargo. The body of a sedan or bus is typically a unitary structure, while a truck body usually consists of a cab and a cargo compartment. 4. Electrical Equipment: The electrical equipment is composed of two main parts: the power source and the electrical devices. The power source includes the battery and the generator. The electrical devices include the engine's starting system, the ignition system of gasoline engines, and other electrical appliances.
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