Isimiso sokusebenza sesiguquli se-catalytic sezindlela ezintathu sithi: lapho izinga lokushisa eliphezulu lokuphuma kwemoto kusetshenziswa idivayisi yokuhlanza, isihlanzi kusiguquli sezindlela ezintathu se-catalytic sizothuthukisa umsebenzi wezinhlobo ezintathu zegesi CO, hydrocarbons kanye ne-NOx, ukuze kuthuthukiswe i-oxidation yayo - ukunciphisa ukusabela kwamakhemikhali, lapho i-CO oxidation emazingeni okushisa aphezulu ingenambala, i-carbon dioxide engenambala 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, i-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 ngokuphuma kwegesi engcolile, lokhu kungcola kuzophinde kufakwe ebusweni benzwa ye-oxygen kanye ne-converter ye-catalytic yezindlela ezintathu. Kungenxa yezici eziningi ezenza imoto ngemva kokushayela inkathi yamamayela, ngaphezu kokunqwabelana kwekhabhoni ku-valve edonsayo negumbi elivuthayo, izophinde ibangele inzwa ye-oxygen kanye nokwehluleka kobuthi bezindlela ezintathu ze-catalytic converter, ukuvinjwa kwe-converter ye-catalytic yezindlela ezintathu kanye ne-valve ye-EGR ivinjwe ukunamathela kwenhlabathi nokunye ukwehluleka, okuholela ekwehleni kokusetshenziswa kukaphethiloli okungavamile, ukwehla kwamandla enjini kanye nokwenyuka kokusebenza kwenjini. ezinye izinkinga.
Ukugcinwa okuvamile kwenjini kukhawulelwe ekunakekeleni okuyisisekelo kwesistimu yokuthambisa, isistimu yokuthatha kanye nesistimu yokuphakela uphethiloli, kodwa ayikwazi ukuhlangabezana nezidingo eziphelele zokugcinwa kwesistimu yokugcotshwa kwenjini yesimanje, isistimu yokuthatha, isistimu yokuphakela uphethiloli kanye nesistimu yokukhipha umoya, ikakhulukazi izidingo zokunakekelwa kwesistimu yokulawula 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 kwezinkampani zesondlo 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.
