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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,汽运一班,2#618,作业,发动机的构造,成员：,Car heart-engine,汽车心脏,发动机,一、,Engine basic knowledge,发动机基本知识,The essence of engine:,Is a kind of energy conversion mechanism,it will fuel combustion produces heat energy into mechanical energy.,Four stroke gasoline engine is a cylinder,piston system,fuel in the cylinder of combustion,and promote the piston motion,through connecting rod then reciprocating motion into rotary motion.,发动机的本质,:,是一种能量转换机构，它将燃料燃烧产生的热能转变成机械能。,四行程汽油机是一个气缸,-,活塞系统，燃料在气缸中燃烧，推动活塞运动，经过曲柄连杆机构再将往复运动转换为旋转运动。,constituent elements,组成部件,profile,1.,机体组：,Crankcase,曲轴箱,cylinder block,汽缸体,head,gasket,汽缸垫,cylinder head,气缸盖,Cylinder,气缸,vitta,and water channel,oil sump,1.,block group,:,Is the engine frame,is in it installed engine main parts and accessories,under all kinds of load.,The group of cylinder block,crankcase,cylinder head and cylinder pad,etc.,1.,机体组,：,是发动机的骨架，是在它的上面安装着发动机的主要零件和附件，承受各种载荷。,机体组由,气缸体,、,曲轴箱,、,气缸盖,和,气缸垫,等组成。,General use gray cast iron moulds,the upper portion of the cylindrical cavity called cylinder,the lower bearing crankshaft crankcase,them cavity for crankshaft movement space.,Cylinder block internal cast many stiffener,cooling water jacket and oil duct,etc.,一般用灰铸铁铸成，上部的圆柱形空腔称为气缸，下部为支承曲轴的曲轴箱，其内腔为曲轴运动的空间。,气缸体内部铸有许多加强筋，冷却水套和润滑油道等,气缸体：,Three kinds of cylinder block,三种气缸体,general,expression,一般式,gantry type,龙门式,tunnel-vision,隧道式,cylinder head,气缸盖,：,Installed in the top of the cylinder block,from upper seal cylinder and constitute a combustion chamber.Have the intake and exhaust gate seat,valve guide hole,inlet channel and exhaust channel.The engine has installed spark plug the holes,diesel engine with installation of the injector hole.,安装在气缸体的上面，从上部密封气缸并构成燃烧室。有进、排气门座，气门导管孔，进气通道和排气通道。汽油机有安装火花塞的孔，柴油机有安装喷油器的孔。,气缸垫：,Put in the cylinder and between the cylinder,its function is to ensure that cylinder head and cylinder block contact sealing,prevent gas leakage,leakage and oil leakage,装在气缸盖和气缸体之间，其功用是保证气缸盖与气缸体接触面的密封，防止漏气，漏水和漏油,。,活塞连杆机构,One of the most important parts of engine.And connecting rod with will function in the piston of gas pressure into rotating power.At the same time,drive distribution device and other auxiliary device,such as fan,water pumps,generators,etc.,发动机最重要的机件之一。与连杆配合将作用在活塞上的气体压力变为旋转的动力。同时，驱动配气机构和其它辅助装置，如风扇、水泵、发电机等。,曲轴：,END,
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