Chapter2MechanismofCrankshaftandConnectingRod2.1Functionandstructure2.1Functionandstructure2.1Functionandstructure2.1Functionandstructure2.2Crankcase2.2Crankcase2.2Crankcase910112.2Crankcase2.2Crankcase2.2Crankcase2.2Crankcase2.2Crankcase气缸垫的作用，要求，构造2.2Crankcase2.3PistonandConnectingRoda.Topb.Head2.3PistonandConnectingRod2.3活塞连杆组2.3PistonandConnectingRod2.3活塞连杆组2.3PistonandConnectingRod2.3PistonandConnectingRod2.4Crankshaft两种曲轴2.4Crankshaft2.4Crankshaft2.4Crankshaft2.4Crankshaft2.4Crankshaft2.4.4曲柄（拐）的布置Summery