What is the function of a car engine?

1 Answers
McCharles
07/30/25 4:17am
The function of a car engine is to provide power for the vehicle, determining its performance, fuel efficiency, stability, and environmental friendliness. Depending on the power source, car engines can be classified into diesel engines, gasoline engines, electric motors for electric vehicles, and hybrid systems. Common gasoline and diesel engines are both types of reciprocating piston internal combustion engines, which convert the chemical energy of fuel into the mechanical energy of piston motion and output power externally. The main component of the engine is the cylinder, which serves as the power source of the entire vehicle. The cylinder includes the cylinder block, intake port, fuel injection port, exhaust port, spark plug, and piston. Fuel and air are injected into the cylinder through the intake port and fuel injection port, where they mix thoroughly. When the spark plug ignites the mixture, it combusts violently, pushing the piston downward and generating power.
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