Start system definition
In order to make the engine transition from a static state to a working state, the crankshaft of the engine must first be rotated by an external force to reciprocate the piston, and the combustible mixture in the cylinder is burned and expanded to push the piston downward to move the crankshaft. The engine can run on its own and the work cycle can be automated. Therefore, the crankshaft starts to rotate under the action of an external force until the engine starts to automatically idling, which is called starting of the engine. The device required to complete the starting process is called the starting system of the engine.