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1、摩托车专业修配知识（Motorcycleprofessionalrepairknowledge）Enginepart1.thediameterofthecylinderdiameterofthecylinderboreisreferredtoas,cylinderdiameter,unitmm.Thedistancebetween2.pistonstrokepistonsrunningbetweentheupperandlowerdeadcenters.Theunitisexpressedbymm.3.thepositionofthepistonatthetopstoppointfromt
2、hecenterlineofthecrankshaft.4.,thelowestpoint,thepistonfromthecenterlineofthecrankshaft,theminimumdistance.5.cylinderworkingvolume,cylinderworkvolume,commonlyknownas"displacement",isthepistonintheupperandlowerdeadpointbetweenthesweptvolume,theunitexpressedinmlorcm3.6.theratioofthemaximumvolumetoth
3、eminimumvolume(includingthevolumeofthecombustionchamber)ofthecompressionratio,alsoknownasthegeometriccompressionratio.7.effectivelycompresstheratioofthecylindervolumetotheminimumvolumeofthecylinder(includingthevolumeofthecombustionchamber)atthemomentwhentheengineissweeping(inlet)andtheexhaustportb
4、eginstoclose.Apparently,thecombustiblemixtureenteringthecylinderbeginstobecompressedfromthisinstant.8.crankcasecompressionratioofcrankcasemaximumvolumetominimumvolume(includingsweepairwayvolume)ratio.9.theworkingcycleconsistsofsweeping(into)gas,compression,combustion,expansion,exhaustandotherproce
5、ssesofthecycle.Eachworkcyclecompletestheconversionofthefuelheatenergytothemechanicalenergy.Atthesametime,thereciprocatinglinearmotionofthepistonischangedintotherotationmotionofthecrankshaftthroughthecrankconnectingrodmechanism,andtheoutputtorqueisachieved.10.reciprocatingpistongasolineengineusingg
6、asolineasfuel,aftergasification,intoacombustiblemixturemixtureofgasolineandairintothecylinderaftercompression,ignitionandcombustionheatreleaseandpushesthepistonlinearmotion,whenthepistonreachesBDC,andwiththehelpofinertiatotheTDCandstartsinto(Saul)gasandcompressed,atthesametime,heatenergyintomechan
7、icalenergy.Theinternalcombustionengineiscalledreciprocatingpistongasolineengine,orgasolineengine.Themajorityofmotorcyclesarepoweredbygasolineengines,usuallycalledmotorcycleengines,whicharegasolineenginesformotorc
