What does car displacement mean?

[GarrettFitz]

Car displacement refers to the volume of fluid inhaled or discharged per stroke or cycle. The space volume that the piston moves from the top dead center to the bottom dead center is called the cylinder displacement. If the engine has several cylinders, the sum of the working volumes of all cylinders is called the engine displacement. It is generally expressed in liters (L). Engine displacement is one of the most important structural parameters, which can represent the size of the engine better than the cylinder diameter and the number of cylinders. Many indicators of the engine are closely related to the displacement. The following is an introduction related to displacement: 1. Most domestic cars have a car model composed of pinyin letters and Arabic numerals at the rear, which includes the following three parts. The first part consists of 2 or 3 pinyin letters, which is the code to identify the name of the enterprise. 2. Generally, the larger the displacement, the more energy the engine releases per unit time (that is, converting the chemical energy of fuel into mechanical energy), which means better "dynamic performance". Therefore, off-road vehicles and sports cars usually have relatively large displacements.