[WapCar] The mechanism that converts other forms of energy into kinetic energy is called an engine. The form of an automobile engine is mainly an internal combustion engine with cylinders and pistons as the conversion mechanism.
According to the fuel form, it can be divided into gasoline engines, diesel engines, and engines that use hydrogen, natural gas, and petroleum gas as fuel, and the combustion mode is similar to that of gasoline engines.
Engine displacement is the sum of the working volume of each cylinder of the engine, generally expressed in liters (L) (for example, the displacement is 1998ml, which is usually regarded as 2.0L). Cylinder working volume refers to the volume of gas swept by the piston from top dead center to bottom dead center, also known as single cylinder displacement, which depends on the cylinder diameter and piston stroke.
According to the cylinder arrangement, it can be divided into L-type (in-line), V-type, W-type, H-type (horizontally opposed engine), and R-type (rotary engine).
According to the number of engine cylinders, it can be divided into 3 cylinders, 4 cylinders, 6 cylinders, 8 cylinders, 10 cylinders, 12 cylinders and so on.
According to the type of air intake, it can be divided into naturally aspirated, turbocharged, supercharged, mechanical + turbocharged, twin turbocharged, triple turbocharged, four turbocharged, double mechanical supercharged, etc.