What does the number of cylinders in an engine mean?

[LeFelicity]

Engine cylinders refer to the number of working combustion chambers, which are cylindrical cavities within the engine where a piston is driven by the pressure or expansion force of the working fluid. An engine typically has multiple cylinders, and the sum of the working volumes of all cylinders is referred to as the engine displacement, measured in liters. Each cylinder consists of components such as the cylinder barrel, end cover, piston, piston rod, and seals. The automobile engine is the power-generating device for a vehicle, determining its power performance, fuel economy, stability, and environmental friendliness. Depending on the power source, automotive engines can be categorized into diesel engines, gasoline engines, electric motors for electric vehicles, and hybrid systems, among others.