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1、机械增压分析Thispaperintroducesthemethodofmechanicalsuperchargingandanalyzesitsadvantagesanddisadvantsges・Supercharger(SuperCharge)thestructureofmechanicalsuperchargeradoptsbeltandenginecrankshaftpulleycormectedbyenginespeedtodrivethebladeinternalsupercharger,toproducepressurizedairintotheengineintakemani
2、fold,theoverallstructureisquitesimple,thetemperaturebetween70DEGTOODEG,drivingtheexhaustgasturbochargerondifferentfromengineemissions,hightemperatureexhaustgasmustreach400DEG-900DEG,sothemechanicalpressurizationsystemforcoolingsystem,thelubricatinggreaseandNAnaturallyaspiratedengine,similarpartsmain
3、tenanceprogram・Supercharger(SuperCharge)characteristicsbecauseofthecharacteristicsofmechanicalsuperchargerwithbeltdrive,sotherotationspeedoftheturbochargerrotorspeedandinternalengineisfullysynchronized,basiccharacteristics:enginerpmX(R1/R2)=rpmR1EngineTurbochargerBladebeltdiscradiusR2superchargerpul
4、leyoftheradiusallkindsofenginepulleysizedifference,andlimitedtotheengineinstallationspace,sothesuperchargerspeedisfarlowerthanthatof30000rpm,andtheturbochargerisoftenfarfromhighabovelOOOOOrpmdomain,whilethesuperchargerspeediscompletelylinkedwiththeenginespeed,whichisonanequalfootingphenomenon,thefor
5、mationofagroupstablearithmeticline,andbetweentheturbochargerandtheenginewillaffecteachother,whenoneoperationisblocked,willbeaffectedbythebelttransmissionTheotherside'soperation,thatis,thecharacteristicsofthesupercharger・Duetothemanufscturingcostlimit,themaximumspeedofthevehicletomaintainthemostcomme
6、rciallyavailableengineunder7500rpmsuperchargerengineidealshouldbewithintheworkingareaof1000rpm-7500rpm,hasasufficientandstablepressurevalue,lettheengineoutputincreasedby20-40%,sothesuperchargermustproducesuperchargingeffectatlowspeed,usuallyanenginefromtheidleareain1000rpm-1300rpm,whichcandrivethesu
7、perchargertoproducesuperchargingeffect,andlasteduntiltheenginemaximumspeed,sotheoverallpressurecurveisasmoothcurveisslowlyrising,byfuelsupplyprogramandpressurereliefvalveadjustment,canreachtheoutputpo
