Iqhaza nomthelela we-valve ye-EGR

1. Iyini i-valve ye-EGR

I-valve ye-EGR iwumkhiqizo ofakwe enjinini kadizili ukuze ulawule inani legesi ekhishwayo ephumayo ebuyiselwa ohlelweni lokuyithatha. Ngokuvamile itholakala ngakwesokudla kwe-manifold yokungenisa, eduze ne-throttle, futhi ixhunywe ngepayipi yensimbi emfushane eholela ekuphumeni okuningi.

I-valve ye-EGR inciphisa izinga lokushisa legumbi elivuthayo ngokuqondisa igesi yokukhipha umoya endaweni eningi ukuze ibambe iqhaza ekushiseni, ithuthukise ukusebenza kahle kwenjini, ithuthukise indawo evuthayo, futhi yehlise umthwalo wenjini, inciphise ngempumelelo ukukhishwa kwegesi. ye-NO compounds, yehlisa ukungqongqoza, futhi andise impilo yesevisi yengxenye ngayinye. Igesi ekhishwa yizimoto igesi engashi engahlanganyeli ekushiseni egumbini lomlilo. Yehlisa izinga lokushisa lomlilo nokucindezela ngokumunca ingxenye yokushisa okukhiqizwa ukusha ukuze kuncishiswe inani le-nitrogen oxide elikhiqizwayo.

2. Yenzani i-valve ye-EGR

Umsebenzi we-valve ye-EGR ukulawula inani legesi ekhishwayo engena endaweni eningi ewuthathayo, ukuze inani elithile legesi elilahlwayo ligelezele endaweni eningi yokuyikhipha ukuze iphinde ijikelezwe.

Lapho injini isebenza ngaphansi komthwalo, i-valve ye-EGR ivuleka, ifika ngesikhathi, ifanele ingxenye yegesi yokukhipha umoya futhi ibe isilinda, ngoba izingxenye eziyinhloko zegesi yokukhipha i-CO2 kunomthamo wokushisa mkhulu, ngakho-ke igesi yokukhipha ingaba yingxenye yokushisa okukhiqizwayo. ngokushisa nokukhipha ku-cylinder, kanye nengxube, ngaleyo ndlela kunciphise izinga lokushisa lomlilo wenjini nokuqukethwe kwe-oxygen, ngaleyo ndlela kunciphise inani le-NOx compounds.

3.Umphumela we-EGR valve lag yekhadi

 I-Emission Standards VIenI-gine isetha inzwa yendawo noma inzwa yezinga lokushisa legesi ephumayo noma inzwa yokucindezela ku-valve ye-EGR ukuze iqhube ukulungiswa kwe-loop evaliwe kanye nokulawula impendulo yenani langempela lokujikeleza kabusha kwegesi yokukhipha umoya. Ngokwezimo zangempela zokusebenza zenjini kanye nezinguquko zezimo zokusebenza, ingakwazi ukulungisa ngokuzenzakalelayo inani legesi ekhishwayo ehilelekile ekugayweni kabusha.

Uma i-valve ye-EGR iminyene, inani langempela legesi ekhipha umoya endaweni eningi ngeke lilawuleke.

Ukuphindaphinda kwegesi ephumayo ngokweqile kuzothinta umsebenzi ojwayelekile wenjini, kube nomthelela ongathi sína ekusebenzeni kwenjini, futhi kuthinte ukukhishwa kwamandla enjini, okuholela ekuntulekeni kwamandla enjini. Igesi encane kadoti ejikelezayo izothinta izinga lokushisa legumbi elivuthayo lenjini, ikhulise ukukhishwa kwe-NO compounds, okuholela ekutheni ukukhishwa kwegesi kungabi sezingeni elijwayelekile, okuholela ekuvuthweni komkhawulo wenjini.