Inzwa ye-oxygen isebenza njani?

Imilinganiselo yendalo yangoku iyanqongqo, kwaye imigangatho yokubunjwa kweegesi zikhutshwe ngokucacileyo. Kungenxa yoko kusetyenziswa izixhobo ezizodwa zoshishino ezizodwa. Laba baguqula abaguquleli, ngaphantsi kwefuthe apho izinga lezinto ezinobuthi ezigqithiseleyo liyancitshiswa kakhulu. Ngelishwa, ezo zixhobo zisebenza kakuhle phantsi kweemeko ezithile. Yingakho i-oxygen sensor iyadingeka. Le nkcukacha encinci yenza imisebenzi ebalulekileyo.

Yintoni i-oxygen sensor?

Ukubunjwa okusemgangathweni kombane womoya-moya xa i-1 yengxenye yepetroli malunga ne-14.7 iinxalenye zomoya. Kule meko, i-factor air excess (L) yi-1. Ukusebenza ngokufanelekileyo kwe-converter catalytic kunokwenzeka kuphela xa uL lingalingana no-1 kunye nephutha lika-0.01. Umsebenzi oyintloko wesikhombisi kukulawula ukuhlanganiswa komxube womoya.

Inzwa ye-oksijini yinkqutyana encinane eyenziwe yintsimbi. Icandelo layo eliphambili yi- zirconium dioxide. Inxalenye ephezulu ihlanganiswe neplatinum. Isixhobo esifanayo sichaphazela umahluko phakathi komxholo we-oksijini emoyeni kunye negesi yokukhupha. Ukongezelela, kwiphumo livelisa ulwahlulo olufanayo.

Umgaqo wokusebenza kwalo mgaqo-nkqubo ulula. Xa izinga le-oksijeni kwi-exhausts liyancipha, ukuphazamiseka kwe-zirconium dioxide kuphazamiseka. Ngendlela, i-catalyst for such transformation is platinum. Kwaye ekubeni ebusweni besikhombisi, ukusabela okunciphisayo kufana neenkqubo zenkxaso, ukuthembeka kunye nokusebenza kweprobethi kugcinwa ngokuzenzekelayo.

Kuze kube yiminyaka, kukho imodeli emininzi yezinto ezifanayo. Into ethandwa kakhulu yi-oxych sensor Bosch. Le fowuni ibonakaliswe ukuqonda okukhulu nokusebenza kakuhle.

I-oxygen sensor sensor

Le ngenye yeendlela eziphambili zesi sixhobo. Inkcazo ifakile kokubili ngaphambi kokungathathi nkunkuma kunye nangemva kwayo, okwenza kube lula ukulungisa ubuninzi bomoya ngokucacileyo. I-electrode kwicala elinye le sixhobo lidibene nomoya womoya, kwaye kwelinye - ngokukhupha i-gases, ukuphendula kummahluko kwisizukulwana esinakho. Umgangatho ophezulu we-oksijeni kwiinkomfa, ezantsi ezenziwe ngumbane.

Kuloo matyala xa izinga le-oksijeni kwimpompo-moya liwela kwaye i-voltage iyaba phezulu, isalathisi sombane senziwe, esithunyelwa kwinkqubo yokulawula injini.

Umtshini we-Oxygen Broadband

Le divayisi ihluke kancinane kwimbali yangaphambili ngokubhekiselele kwisakhiwo kunye nemigaqo yokusebenza. Iqukethe izingxenye ezimbini zeekheramic: yinkqubo yesigxina ye-point-to-point kunye nenxalenye yokupompa. Phakathi kwama-electrode amabini i-voltage ye-450 mV iveliswa rhoqo kwinqanaba lembini leprobethi. Ngelo xesha, i-oksijini evela kwi-gases yoqhawulo idlula kwinxalenye ye-injection ye-sensor. I-low level ye-oxygen, ephakamileyo umbane phakathi kwama-electrode amabini. Kwiimeko ezinjalo, uphawu ludluliselwa kwiyunithi yokulawula i- elektroniki . Ngendlela, i-oxygen sensor VAZ isebenza ngokwale cwangciso.