What does Aowei 11-liter mean?

[HopeRose]

Aowei 11-liter refers to the engine's displacement. Displacement: Displacement refers to the exhaust volume, which is the volume swept by the piston from top dead center, also known as single-cylinder displacement, and depends on the cylinder bore and piston stroke. The displacement of an internal combustion engine is the sum of the working volumes of all cylinders, usually expressed in liters (L). Working Principle: Exhaust volume is the gas expelled by the piston from one stroke to another during the engine's operation when a specific cycle delivers air into the cylinder. Theoretically, during the exhaust stroke, the exhaust gas in the cylinder should be completely expelled by the piston, hence it is often referred to as 'piston displacement'.