AbakwaMercedes-Benz bethula ubuchwepheshe beBluetec

I-Mercedes-Benz ishintsha ibe luhlaza ibe luhlaza okwesibhakabhaka isebenzisa ubuchwepheshe obugunyazwe yi-European Selective Catalyst Reduction (SCR), noma iBluetec njengoba iMercedes-Benz ikubiza kanjalo, ukuze ihambisane nemithetho emisha yokukhipha umoya ka-2008.

I-SCR, kanye ne-Exhaust Gas Recirculation (EGR), ingenye yobuchwepheshe obubili obuvame ukusetshenziswa abakhiqizi bamaloli emhlabeni wonke ukuhlangabezana nemithetho emisha enzima yokukhipha umoya.

Ngokuvamile kubonakala njengendlela elula yokufinyelela umgomo wokugcina wokunciphisa ukungcola kune-EGR ngoba kuwubuchwepheshe obulula obungadingi izinguquko enjinini njengoba kwenza i-EGR.

Esikhundleni salokho, i-SCR ijova i-Adblue, isithasiselo esisekelwe emanzini, emfudlaneni wokuqeda amandla. Lokhu kukhipha i-ammonia, eguqula i-NOx eyingozi ibe i-nitrogen namanzi angenabungozi.

Lena indlela engaphandle kwe-cylinder, kuyilapho i-EGR iyindlela ye-in-cylinder yokuhlanza igesi edinga izinguquko ezinkulu enjinini ngokwayo.

Izinzuzo ze-SCR ukuthi injini ingasebenza ngokungcolile, njengoba noma yikuphi ukukhishwa okwengeziwe kungahlanzwa ku-exhaust stream ngemva kokushiya injini.

Lokhu kuvumela abaklami bezinjini ukuthi bashune injini ukuze ithuthukise amandla engeziwe nokonga uphethiloli okungcono ngaphandle kokunqunywa isidingo sokuhlanza injini ngokwayo. Ngenxa yalokho, izinjini zakwaMercedes-Benz ezilungisiwe zinezinga eliphezulu lokucindezela futhi zikhiqiza amandla amahhashi angama-20 ngaphezu kwezinjini zamanje.

Injini ye-SCR nayo izosebenza ngokupholile, ngakho-ke asikho isidingo sokwandisa umthamo wesistimu yokupholisa yeloli, njengoba kwenzeka nge-EGR, eyenza injini ishise kakhulu.

Ku-opharetha, lokhu kusho ukukhiqiza okuphezulu kanye nezindleko zokusebenza eziphansi.

Iningi labaqhubi abathole ithuba lokuhlola iloli elilodwa lamaloli amaningi okuhlola ahlolwe e-Australia ngabakhiqizi abasebenzisa isu le-SCR - i-Iveco, i-MAN, i-DAF, i-Scania, i-Volvo ne-UD - ibika ukusebenza okungcono nokuphathwa kwamaloli amasha uma kuqhathaniswa nangaphambili. . amaloli abo siqu, futhi iningi bathi ngcono uphethiloli ukonga.

Okubi ku-opharetha ukuthi kufanele bahlanganise izindleko ezengeziwe ze-Adblue, ezivame ukungezwa ngenani lika-3-5%. I-Adblue ithuthwa ngethangi elihlukile ku-chassis. Ivamise ukuba namandla alinganiselwa ku-80 litres, obekwanele ukuthola i-B-double ukuya nokubuya eBrisbane nase-Adelaide ezivivinyweni zakamuva ezenziwe ngabakwaVolvo.

I-Mercedes-Benz inamaloli ayisithupha ane-SCR ahlolwa endaweni, okuhlanganisa amaloli e-Atego amabili, ugandaganda owodwa we-Axor nogandaganda abathathu be-Actros. Bonke bafakwe ngaphansi kwe-blowtorch kwezinye zezicelo ezinzima ezweni zokuqinisekisa ukuthi bakulungele ngokugcwele ukwethulwa kwemithetho emisha ngoJanuwari.