Isicelo esingundoqo

I-1.Ukuze ufumane izinga eliphezulu lokucocwa kwegesi kunye nokunciphisa amacandelo (CO) i-carbon monoxide, (HC) i-hydrocarbons kunye ne- (NOx) i-nitrogen oxides kwi-gas exhaust, izithuthi ze-EFI kufuneka zisebenzise iindlela ezintathu zokuguqula i-catalytic. Nangona kunjalo, ukuze usebenzise ngokufanelekileyo i-converter ye-catalytic yeendlela ezintathu, kuyimfuneko ukulawula ngokuchanekileyo umlinganiselo we-fuel-fuel ukuze uhlale usondele kwi-theory-fuel ratio. I-catalyst idla ngokufakwa phakathi kwe-exhaust manifold kunye ne-muffler. I-sensor ye-oksijini inophawu lokuba i-voltage yayo yokuphuma iyatshintsha ngokukhawuleza kufuphi nomlinganiselo we-air-fuel ratio (14.7: 1). Olu phawu lusetyenziselwa ukufumanisa ukuxinwa kweoksijini kwigesi yokukhupha kwaye iphinde ibuyele kwikhompyutheni ukulawula umlinganiselo we-air-fuel. Xa i-air-fuel ratio yangempela iba phezulu, ukuxinwa kwe-oksijini kwi-gesi yokukhupha inyuka kwaye i-sensor ye-oksijeni ikwazisa i-ECU yesimo esincinci somxube (i-electromotive force encinci: i-O volts). Xa i-air-fuel ratio iphantsi kwe-theory-fuel ratio, i-concentration ye-oksijini kwi-gas yokukhupha iyancipha, kwaye imeko ye-oxygen sensor (i-electromotive force enkulu: i-1 volt) yaziswa kwikhompyutheni ye-ECU.

I-2.ECU igweba ukuba i-air-fuel ratio iphantsi okanye iphezulu ngokwe-electromotive force umehluko kwi-sensor ye-oxygen, kwaye ilawula ubude be-injection ye-fuel ngokufanelekileyo. Nangona kunjalo, ukuba i-oxygen transmitter iphosakele kwaye i-electromotive force output ayiqhelekanga, ikhompyutha ye-ECU ayikwazi ukulawula ngokuchanekileyo umlinganiselo we-air-fuel. Ke ngoko, inzwa yeoksijini inokwenza kwakhona impazamo yomlinganiselo we-fuel emoyeni obangelwa kukunxitywa koomatshini kunye nezinye iindawo zenkqubo ye-EFI. Kunokuthiwa kuphela inzwa "ekrelekrele" kwinkqubo ye-EFI.

3.Umsebenzi we-sensor kukuqinisekisa ukuba kukho i-oksijini engaphezulu kwigesi yokukhupha i-injini emva kokutsha, oko kukuthi, umxholo we-oksijini, kwaye uguqule umxholo we-oksijini ube ngumqondiso we-voltage kwaye uyithumele kwikhompyutheni ye-injini, ngoko. ukuba i-injini inokufikelela kulawulo oluvaliweyo olunento yomoya egqithisileyo njengenjongo; Qinisekisa ukuba i-converter ye-catalytic yeendlela ezintathu inokuguqulwa okuphezulu kokuguqulwa kwe-hydrocarbons (HC), i-carbon monoxide (CO) kunye ne-nitrogen oxides (NOX) kwi-exhaust gas, kwaye iguqule kwaye ihlambulule ukungcola okukhutshiweyo ukuya kwinqanaba elikhulu.

Ukusetyenziswa kwentshayelelo

Izinzwa ze-oksijeni zisetyenziswa ngokubanzi kwi-petroleum, imboni yeekhemikhali, amalahle, i-metallurgy, i-papermaking, ukhuseleko lomlilo, ulawulo lukamasipala, amayeza, i-automobile, i-gas emission monitoring kunye namanye amashishini.