Isimiso sokusebenza sesiguquli se-catalytic sendlela ezintathu sithi: lapho izinga lokushisa eliphakeme lokuphuma kwemoto ngedivayisi yokuhlanza, isihlanzi kusiguquli se-catalytic esinezindlela ezintathu sizothuthukisa umsebenzi wezinhlobo ezintathu zegesi CO, ama-hydrocarbons kanye ne-NOx, ukukhuthaza i-oxidation yayo - ukunciphisa ukusabela kwamakhemikhali, lapho i-CO oxidation ekushiseni okuphezulu iba yigesi engenambala, engeyona enobuthi ye-carbon dioxide; I-Hydrocarbons oxidize emanzini (H2O) kanye ne-carbon dioxide emazingeni okushisa aphezulu; I-NOx yehliselwa ku-nitrogen nomoya-mpilo. Izinhlobo ezintathu zegesi eyingozi zibe igesi engenangozi, ukuze isisi semoto sihlanzeke. Uma sicabanga ukuthi kusekhona umoya-mpilo otholakalayo, isilinganiso sikaphethiloli womoya sinengqondo.
Ngenxa yekhwalithi evamile engeyinhle kaphethiloli e-China, uphethiloli uqukethe isulfure, phosphorus kanye ne-antiknock ejenti ye-MMT iqukethe imanganese. Lezi zingxenye zamakhemikhali zizokwakha ama-chemical complexes ebusweni benzwa ye-oxygen nangaphakathi kwesiguquli se-catalytic yezindlela ezintathu nge-exhaust gas ekhishwa ngemva kokuvutha. Ngaphezu kwalokho, ngenxa yemikhuba emibi yokushayela yomshayeli, noma ukushayela isikhathi eside emigwaqweni eminyene, injini ivamise ukuba sesimweni sokusha esingaphelele, okuzokwenza ukunqwabelana kwekhabhoni kusizwa komoyampilo kanye nesiguquli se-catalytic sendlela ezintathu. Ngaphezu kwalokho, izindawo eziningi zezwe zisebenzisa uphethiloli we-ethanol, onomphumela oqinile wokuhlanza, uzohlanza isikali ekamelweni elivuthayo kodwa awukwazi ukubola nokushisa, ngakho-ke ngokukhishwa kwegesi engcolile, lokhu kungcola kuzophinde kufakwe ku- indawo engaphezulu yenzwa ye-oxygen kanye nesiguquli se-catalytic sezindlela ezintathu. Kungenxa yezici eziningi ezenza imoto ngemva kokushayela inkathi yamamayela, ngaphezu kokunqwabelana kwekhabhoni ku-valve yokungenisa kanye negumbi elivuthayo, izophinde ibangele inzwa ye-oxygen kanye nokwehluleka kobuthi bezindlela ezintathu ze-catalytic converter, izindlela ezintathu. ukuvinjelwa kwesiguquli se-catalytic kanye ne-valve ye-EGR ivinjwe ukubhajwa kwenhlabathi nokunye ukwehluleka, okuholela ekusebenzeni okungavamile kwenjini, okuphumela ekwenyukeni kokusetshenziswa kukaphethiloli, ukwehla kwamandla kanye nokukhipha umoya okudlula izinga nezinye izinkinga.
Ukugcinwa njalo kwenjini kukhawulelwe ekunakekeleni okuyisisekelo kwesistimu yokuthambisa, isistimu yokuthatha kanye nesistimu yokuphakela uphethiloli, kodwa ayikwazi ukuhlangabezana nezidingo eziphelele zokulungiswa kwesistimu yesimanje yokuthambisa injini, isistimu yokuthatha, isistimu yokuphakela uphethiloli kanye nesistimu yokukhipha umoya, ikakhulukazi izidingo zokugcinwa kwenjini. uhlelo lokulawula ukungcola. Ngakho-ke, ngisho noma imoto yesikhathi eside yesondlo evamile, kunzima ukugwema izinkinga ezingenhla.
Ukuphendula kulawa maphutha, izinyathelo ezithathwa amabhizinisi okunakekela ngokuvamile ziwukuba esikhundleni sezinzwa zomoya-mpilo kanye neziguquli zezindlela ezintathu. Kodwa-ke, ngenxa yenkinga yezindleko zokushintshwa, izingxabano phakathi kwamabhizinisi esondlo namakhasimende ziyaqhubeka. Ikakhulukazi labo abangekho empilweni yesevisi yokushintshwa kwezinzwa ze-oxygen kanye neziguquli ze-catalytic ezintathu, ngokuvamile zigxila ezingxabano, amakhasimende amaningi aze athi inkinga yikhwalithi yemoto.
