Izinjini ezivuthayo zangaphakathi zikhipha amanani amakhulu e-nitrogen oxide.Ubuchwepheshe be-Selective Catalytic Reduction (SCR) bunamandla kakhulu kuzo zonke izinyathelo zokunciphisa ama-nitrogen oxide futhi bunganciphisa ukukhishwa kwekhabhoni kube amazinga aphansi kakhulu.Ngale njongo, uketshezi olwengeziwe (i-AdBlue) lujovwa entanjeni yokukhipha umoya ngemva kwe-turbocharger bese luyahwamuka endleleni eya ku-catalyst.Lapho, i-AdBlue iguqula ama-nitrogen oxides ku-catalyst abe yi-nitrogen namanzi, kokubili izingxenye zemvelo nezingenabo ubuthi ngokuphelele.Inani elilinganisiwe le-AdBlue kanye nokusatshalaliswa kwayo phezu kwe-catalyst inquma ukusebenza kahle kwesistimu ngokuphelele.
I-GRVNES inikeza izixazululo ezihlukene ezilungiselelwe uhlelo oluthile.Njengomkhiqizi nomphakeli walo lonke uhlelo lwe-exhaust, amakhasimende ayazuza kumphumela ocabangela ukukhishwa kwekhabhoni sekukonke futhi unikeze isixazululo esenziwe ngokwezifiso esihambisana ngokugcwele nezidingo.
