Automobileenginedisplacementreferstoacertaincycleofoperationthattransportsairintothecylinderwhenthecarengineisworking,thatistosay,duringthisprocess,apistonisremovedfromonestroketoanotherstrokeGas
.Theworkingvolumeofeachcylindertheoretically,whenthecylinderisintheexhauststroke,thispartoftheexhaustgasshouldbecompletelyeliminatedbythepiston,soitisoftencalled"pistondisplacement".
Thesumofthedisplacementofeachcylinderofeachengineiscalledthetotaldisplacementorenginedisplacement.Iftheenginecompressionratioandspeedarethesame,theirpowershouldbeproportionaltothetotaldisplacement.Undernormalcircumstances,thegreatertheenginedisplacement,thegreaterthepowerproduced.
Theclassificationmethodofmycountry'scarsisdistinguishedbyenginedisplacementL(liter).Forexample,thetotaldisplacementofthedomesticXialiTJ7100sedanengineis0.993;thetotaldisplacementoftheShanghaiSantanaengineis1.81;thetotaldisplacementoftheAudilO5-cylinderengineis2.144L;thetotaldisplacementofthegolfcar(producedbyFAW-Volkswagen)is1.591;Jettasedan(producedbyFAW-Volkswagen)hasatotalenginedisplacementof1.59L;Fukangzxsedan(producedbyShenlongAutomobileCo.,Ltd.)hasatotalenginedisplacementof1.36L;Passat(PASSAT)wagon(producedbyShanghaiVolkswagenAutomobileCo.,Ltd.)ThetotalenginedisplacementofthePeugeot505SXsedan(producedbyGuangzhouPeugeotAutomobileCompany)is1.97L;thetotaldisplacementofthePeugeot405GRsedan(producedbyGuangzhouPeugeotAutomobileCompany)is1.91L.
Thesumoftheworkingvolumeofeachcylinderofamulti-cylinderengine,calledtheenginedisplacement GenerallyexpressedbyVL:VL=Vh×i=S*π*D2/(4*106)where:Vh-cylinderworkingvolume; i-thenumberofcylinders. |