What is the engine piston stroke?

[VonAmara]

Engine piston stroke is the distance the piston travels between the two dead centers (i.e., top dead center and bottom dead center). Also known as the stroke, it is one of the important parameters of an engine. For each piston stroke, the crankshaft rotates half a turn, so the piston stroke is equal to twice the distance between the crankpin axis and the main shaft center, measured in meters (m). Piston stroke size: The piston stroke equals the rotational diameter length of the crankshaft connecting rod section. It is generally denoted by 's', and for each piston stroke, the crankshaft rotates 180 degrees. A larger piston stroke not only increases the overall height of the engine but also is not conducive to increasing the engine speed. Piston stroke process: The compressor completes one cycle every two piston strokes, with each cycle including four processes: expansion, intake, compression, and exhaust. This requires the crankshaft to rotate two full turns, i.e., 720 degrees.