Internal combustion engines emit ib tug ntau ntawm nitrogen oxides.Selective Catalytic Reduction (SCR) thev naus laus zis yog qhov muaj zog tshaj plaws ntawm txhua qhov kev ntsuas los txo cov nitrogen oxides thiab tuaj yeem txo cov emissions mus rau qib qis heev.Rau lub hom phiaj no, ib qho kua ntxiv (AdBlue) yog txhaj rau hauv cov pa tawm tom qab lub turbocharger thiab vaporises ntawm txoj kev mus rau catalyst.Nyob ntawd, AdBlue hloov cov nitrogen oxides ntawm cov catalyst rau nitrogen thiab dej, ob qho tib si ntuj thiab tsis muaj tshuaj lom.Tus nqi ntsuas ntawm AdBlue thiab nws qhov kev faib tawm ntawm cov catalyst txiav txim siab qhov ua tau zoo ntawm lub kaw lus txiav txim siab heev.
GRVNES muaj cov kev daws teeb meem sib txawv rau kev ua haujlwm tshwj xeeb.Raws li cov chaw tsim khoom thiab cov chaw muag khoom ntawm tag nrho cov pa tso pa tawm, cov neeg siv khoom tau txais txiaj ntsig los ntawm qhov tshwm sim uas txiav txim siab cov emissions tag nrho thiab muab cov kev daws teeb meem uas tsim nyog rau cov kev xav tau.