Umgaqo osebenzayo wesiguquli se-catalytic esineendlela ezintathu ngulo: xa ubushushu obuphezulu bomphunga wemoto budlula kwisixhobo sokucoca, isicoci esikwisiguquli se-catalytic esineendlela ezintathu siya kuphucula umsebenzi weentlobo ezintathu zegesi i-CO, ii-hydrocarbons kunye ne-NOx, ukukhuthaza i-oxidation-reduction chemical reaction yayo, apho i-CO oxidation kubushushu obuphezulu iba yigesi engenambala, engenatyhefu ye-carbon dioxide; Ii-Hydrocarbons zi-oxidation emanzini (H2O) kunye ne-carbon dioxide kubushushu obuphezulu; i-NOx incitshiswa ibe yi-nitrogen kunye ne-oxygen. Iintlobo ezintathu zegesi enobungozi zibe yigesi engenabungozi, ukuze umphunga wemoto ucocwe. Ukuba kusekho i-oxygen ekhoyo, umlinganiselo womoya-fuel ufanelekile.
Ngenxa yomgangatho ophantsi wepetroli eTshayina, ipetroli inesulfure, iphosphorus kwaye i-antiknock agent MMT inemanganese. Ezi khemikhali ziya kwenza iichemical complexes kumphezulu we-oxygen sensor kwaye ngaphakathi kwi-three-way catalytic converter enegesi yokukhupha umoya ekhutshwa emva kokutsha. Ukongeza, ngenxa yemikhwa emibi yomqhubi yokuqhuba, okanye ukuqhuba ixesha elide kwiindlela ezixineneyo, injini idla ngokuba kwimeko yokutsha engaphelelanga, eya kwenza ukuqokelelwa kwekhabhoni kwi-oxygen sensor kunye ne-three-way catalytic converter. Ukongeza, iindawo ezininzi zelizwe zisebenzisa i-ethanol gas, enefuthe elinamandla lokucoca, iya kucoca isikali kwigumbi lokutsha kodwa ayinakubola kwaye itshise, ngoko ke ngokukhutshwa kwegesi emdaka, olu daka luya kubekwa kumphezulu we-oxygen sensor kunye ne-three-way catalytic converter. Kungenxa yezinto ezininzi ezenza imoto emva kokuqhuba ixesha elide, ukongeza ekuqokeleleni kwekhabhoni kwivalvu yokungenisa kunye negumbi lokutsha, iya kubangela ukungaphumeleli kwe-oxygen sensor kunye ne-three-way catalytic converter poisoning, ukuvaleka kwe-three-way catalytic converter kunye ne-EGR valve evalwe yi-sediment ebambeke kunye nezinye iingxaki, okubangela ukusebenza okungaqhelekanga kwenjini, okubangela ukwanda kokusetyenziswa kwepetroli, ukwehla kwamandla kunye nokuphuma komoya okugqitha umgangatho kunye nezinye iingxaki.
Ukugcinwa rhoqo kwenjini yesiqhelo kunqunyelwe kulondolozo olusisiseko lwenkqubo yokuthambisa, inkqubo yokungenisa kunye nenkqubo yokubonelela ngepetroli, kodwa ayinakuhlangabezana neemfuno zolondolozo olupheleleyo lwenkqubo yanamhlanje yokuthambisa yenjini, inkqubo yokungenisa, inkqubo yokubonelela ngepetroli kunye nenkqubo yokukhupha umoya, ingakumbi iimfuno zokugcinwa kwenkqubo yolawulo lokukhupha umoya. Ke ngoko, nokuba imoto igcinwa ixesha elide, kunzima ukuphepha ezi ngxaki zingasentla.
Ukuphendula kwiimpazamo ezinjalo, amanyathelo athathwa ngamashishini okulungisa adla ngokutshintsha izinzwa zeoksijini kunye neziguquli ze-catalytic ezineendlela ezintathu. Nangona kunjalo, ngenxa yengxaki yeendleko zokutshintsha, iingxabano phakathi kwamashishini okulungisa kunye nabathengi ziyaqhubeka. Ingakumbi ezo zingabikho kwixesha lenkonzo yokutshintshwa kwezinzwa zeoksijini kunye neziguquli ze-catalytic ezineendlela ezintathu, zihlala zizinto eziphambili kwiingxabano, abathengi abaninzi bade bathi le ngxaki ibangelwa kumgangatho wemoto.
