Displacement
Displacement is a special term for hydraulic transmission, refers to the volume of fluid sucked or discharged per stroke or per cycle.
Usually the displacement is large, the energy released by the engine per unit time (that is, the chemical energy of the fuel is converted into mechanical energy) is large, that is, the "power" is good, just like a teenage boy compared with a healthy adult, of course It is adults who do physical work more efficiently. So those off-road vehicles and sports cars usually have relatively large displacements.
The working volume through which the piston moves from top dead center to bottom dead center is called cylinder displacement; if the engine has several cylinders, the sum of the working volumes of all cylinders is called engine displacement.
Generally expressed in liters (L). Engine displacement is one of the most important structural parameters. It is more representative of the size of the engine than the cylinder diameter and the number of cylinders. Many indexes of the engine are closely related to the displacement.
