Uphando malunga nonyango lwe-exhaust yenjini yedizili emva kokunyanga lujikeleza ekususweni kwe-NOX kunye ne-PM. Kwaye kuye kwavela amanyathelo amaninzi okucoca. Itekhnoloji yokucoca i-exhaust yedizili ibandakanya ikakhulu i-exhaust gas recirculation (EGR), i-oxidation catalytic converter (DOC), i-diesel particulate filter (DPF), i-selective catalytic reduction system (SCR), kunye ne-ammonia escape trap (ASC).
1.EGR (Ukujikeleza kwegesi ephumayo)Inkqubo yokujikeleza kwakhona kwegesi ephumayo, eyahlula inxalenye yegesi ephumayo kwinjini yokutsha ize iyifake kwicala lokungenisa ukuze itshiswe ngakumbi, inokufezekisa isiphumo sokucinezela ukuveliswa kwe-nitrogen oxides kunye nokuphucula ukonga amafutha.
2.DOC (Isixhobo Sokuxilisa Idizili)yiteknoloji ye-catalyst ye-diesel oxidation esebenzisa ii-catalysts ezineentsimbi ezixabisekileyo ukuze ziphinde zidibanise i-HC, i-CO, i-NO, kunye neendleko eziguquguqukayo kwiindawo ezinamasuntswana kwi-exhaust yenjini, ngaloo ndlela zinciphisa ubungakanani be-HC, i-CO, kunye ne-PM.
3.DPF (Isihluzi seDiesel Particulate)luhlobo lwesihluzo esifakwe kwinkqubo yokukhupha umoya kwiinjini zedizili, esisetyenziselwa kakhulu ukubamba izinto ezincinci (PM) kwi-exhaust.
4.SCR (Ukunciphisa iCatalytic ekhethiweyo)Inkqubo yiteknoloji esebenzisa i-urea ukunciphisa ngokukhethekileyo ii-nitrogen oxides (iigesi ezinetyhefu) kwigesi yokukhupha umoya zibe yi-nitrogen namanzi (ezingenabungozi).
5.ASC (iAmmonia Slip Catalyst)I-ammonia escape catalyst, ezinye iilori zeNational VI emva konyango ziya kuba nenkqubo ye-ASC, efakwe ngasemva kwe-SCR kwaye inciphisa ukuvuza kwe-ammonia (NH3) kwi-exhaust ye-SCR ngasemva nge-catalytic oxidation.
6.POCyi-particulate catalytic oxidizer. Umgaqo osebenzayo kukuthatha i-particulate matter uze uyitshise ngobushushu obuphezulu begesi ephumayo (250 ℃ -500 ℃) ukuze kufezekiswe injongo yokunciphisa i-particulate matter. I-POC isetyenziswa rhoqo kwiilori ezikhaphukhaphu. Ukongeza, i-POC inokuhlaziywa ngokukhutheleyo, ngelixa i-DPF ifuna ukungenelela ngesandla.
Ixesha leposi: Julayi-31-2024