英语翻译oneadditionalpartisrequiredtothecompleteabasicengine.Becauseitisnecessarytopushthepistondownthcylindermorethanonce,inbetweendownstrokesitmustbereturnedtothetopofthecylinder.Todothis,aheavyflywheeli
英语翻译
oneadditionalpartisrequiredtothecompleteabasicengine.Becauseitisnecessarytopushthepistondownthcylindermorethanonce,inbetweendownstrokesitmustbereturnedtothetopofthecylinder.Todothis,aheavyflywheelismountedtotheendofthecrankshaft.Whenthepistonisforceddowned,thecrankshaftturns,andtheflywheelturnswithit.Becausethe
flywheelisheavy,itdoesnotslowdowneasily.Itsmomentumkeepsthecrankshaftturning.Therotationofthecrankshaftthenpushesthepistonbackuptothetpoofthecylinder.