1. The noun bore
refers to the diameter of the bore cross-sectional circle of the cylinder of the engine, typically in millimeters (mm) units. Bore and stroke determine the single cylinder engine displacement engine, thereby determining the displacement of the engine.
For example:
If a cylinder bore of the engine is 84mm, a stroke of 91mm, that the displacement of its cylinder = 3.14 * (84 / 2) ² * 91 = 504045.36mm³≈0.5L, the total engine displacement of 0.5L * 4 = 2L.
bore and stroke of the engine on the performance of a great impact, the general relationship is as follows:
