Inzwa yemoto i-O2 iyinzwa ebalulekile yempendulo ohlelweni lokulawula injini yomjovo kaphethiloli.Kuyingxenye ebalulekile yokulawula ukukhishwa kwegesi yezimoto, ukunciphisa ukungcoliswa kwezimoto endaweni ezungezile, nokuthuthukisa ikhwalithi yokuvutha kukaphethiloli ezinjini zezimoto.Inzwa ye-O2 ifakwe epayipini lokukhipha injini.Okulandelayo, ngizokwethula ulwazi oluthile mayelana nenzwa yemoto ye-O2.
Uhlolojikelele
Inzwa ye-automobile O2 iyidivayisi ethola inzwa engakala ukugcwala komoyampilo osetshenziswa emotweni, futhi manje isiyindinganiso emotweni.Inzwa ye-O2 itholakala ikakhulukazi epayipini lokuqeda le injini yemoto.Iyingxenye yezinzwa ezibalulekile ohlelweni lokulawula injini yomjovo kaphethiloli.Kuphinde kube yingxenye ebalulekile yokulawula ukukhishwa kwegesi yemoto, ukunciphisa ukungcoliswa kwezimoto endaweni ezungezile, kanye nokwenza ngcono ikhwalithi yokushiswa kukaphethiloli wenjini yemoto.
Inombolo
Ngokuvamile, kukhona izinzwa ezimbili ze-O2 emotweni, inzwa ye-O2 yangaphambili kanye nenzwa ye-O2 yangemuva.Inzwa yangaphambili ye-O2 ivamise ukufakwa ku-exhaust manifold phambi kwesiguquli se-catalytic yezindlela ezintathu futhi inesibopho esikhulu sokulungiswa kwengxube.Inzwa ye-O2 yangemuva ifakwe epayipini le-exhaust ngemuva kwesiguquli se-catalytic yezindlela ezintathu futhi isetshenziselwa kakhulu ukuhlola umphumela wokusebenza wesiguquli se-catalytic yezindlela ezintathu.
Isimiso
Njengamanje, izinzwa eziyinhloko ze-O2 ezisetshenziswa ezimotweni zifaka izinzwa ze-zirconium dioxide O2, izinzwa ze-titanium dioxide O2 kanye nezinzwa ze-O2 zendawo ebanzi.Phakathi kwazo, esetshenziswa kakhulu kunazo zonke inzwa zirconium dioxide O2.Okulandelayo kusebenzisa inzwa ye-zirconium dioxide O2 njengesibonelo ukukwethula kumgomo wenzwa yemoto i-O2.
Inzwa ye-zirconium dioxide O2 yenziwe nge-zirconium tube (isici sokuzwa), i-electrode kanye nomkhono ovikelayo.Ishubhu ye-zirconium iyisici esiqinile se-electrolyte esenziwe nge-zirconium dioxide (ZrO2) equkethe inani elincane le-yttrium.Izinhlangothi zangaphakathi nezingaphandle zeshubhu ye-zirconium zimbozwe ungqimba lwama-electrode olwelwesi lwe-platinum anezimbotshana.Ingaphakathi le-tube ye-zirconium livulekele emkhathini, futhi ngaphandle kuthintana negesi yokukhipha.
Ngamagama alula, izinzwa zezimoto ze-O2 ikakhulukazi zakhiwe nge-zirconia ceramics kanye nongqimba oluncane lweplatinamu endaweni yangaphakathi nangaphandle.Isikhala sangaphakathi sigcwele umoya wangaphandle onothile nge-oxygen, futhi indawo engaphandle ibhekene negesi yokukhipha umoya.Inzwa ifakwe isekethe yokushisisa.Ngemuva kokuthi imoto iqalisiwe, isifunda sokushisa singafinyelela ngokushesha ku-350 ° C edingekayo ekusebenzeni okujwayelekile.Ngakho-ke, inzwa ye-O2 yemoto ibizwa nangokuthi inzwa ye-O2 eshisayo.
Inzwa ye-O2 ikakhulukazi isebenzisa izinto ezizwelayo ze-ceramic ukukala amandla e-O2 epayipini lokukhipha umoya wemoto, futhi ibala ukugxiliswa kwe-O2 okuhambisanayo ngesimiso sebhalansi yamakhemikhali, ukuze isilinganiso sikaphethiloli womoya ovuthayo sikwazi ukugadwa futhi ilawulwe.Ngemva kokuqapha isilinganiso se-air-fuel isignali ecebile nethambile yegesi exubekile, isignali ifakwa ku-ECU yemoto, futhi i-ECU ilungisa inani lomjovo kaphethiloli wenjini ngokuvumelana nesignali ukuze kuzuzwe ukulawula okuvaliwe, ukuze isiguquli se-catalytic singenza kangcono umsebenzi waso wokuhlanza, futhi ekugcineni siqinisekise ukukhishwa okusebenzayo kokukhipha umoya.
Ngokuqondile, isimiso sokusebenza senzwa yemoto ye-O2 sifana nebhethri elomile, futhi isici se-zirconium oxide kunzwa sisebenza njenge-electrolyte.Ngaphansi kwezimo ezithile, umehluko ekugxilweni kwe-O2 phakathi kwezinhlangothi zangaphakathi nangaphandle ze-zirconia zingasetshenziswa ukukhiqiza umehluko ongase ube khona, futhi umehluko omkhulu wokuhlushwa, umehluko omkhulu ongaba khona.Ngaphansi kwe-catalysis yokushisa okuphezulu neplatinamu, i-O2 i-ionized.Ngenxa yokugcwala okuphezulu kwama-ion we-O2 ngaphakathi kweshubhu ye-zirconium kanye nokugcwala okuphansi kwama-ion we-O2 ngaphandle, ngaphansi kwesenzo somehluko wokuhlushwa we-O2, ama-ion komoya-mpilo ahlakazeka asuka emkhathini aye ohlangothini lokukhipha umoya, kanye nokugcwala kwama-ion ezinhlangothini zombili. Umehluko udala amandla e-electromotive, ngaleyo ndlela yakhe ibhethri elinomehluko ekugxiliseni kwe-O2.
Uyazi okwengeziwe ngenzwa yemoto ye-O2?Uma ufuna ukuthengisa inzwa ye-O2, wamukelekile ukuxhumana nathi!
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Isikhathi sokuthumela: Nov-24-2021