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What is the internal structure of a sedan?

1 Answers

DiAustin

07/30/25 12:58am

The interior of a sedan generally consists of four basic parts: the engine, chassis, body, and electrical equipment. Below is an introduction to the related components: 1. Car Engine: The engine is the power unit of the car, composed of 2 major mechanisms and 5 major systems, namely the crankshaft-connecting rod mechanism, valve mechanism, cooling system, fuel supply system, lubrication system, ignition system, and starting system. However, diesel engines have one less ignition system compared to gasoline engines. 2. Car Chassis: The chassis serves to support and install the car engine and its various components, forming the overall shape of the car. It receives power from the engine to enable movement and ensure normal operation. The chassis consists of four parts: the transmission system, running system, steering system, and braking system. 3. Car Body: The body is mounted on the frame of the chassis and is used for the driver, passengers, or cargo. The bodies of cars and buses are generally of an integrated structure, while truck bodies usually consist of two parts: the cab and the 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 generator; the electrical devices include the engine's starting system, the ignition system of gasoline engines, and other electrical equipment.

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