Umuyoboro wa EGR (gaze ya gaze ya gaze)
Umuyoboro wa EGR nigicuruzwa cya mechatronic cyashyizwe kuri moteri ya mazutu kugirango igenzure ingano ya gaze ya gaze ya gaze yagaruwe muri sisitemu yo gufata. Ubusanzwe iherereye kuruhande rwiburyo bwa feri yo gufata, hafi yumubiri wa trottle, kandi igahuzwa nayo numuyoboro mugufi wicyuma uganisha kumyuka myinshi. Igikorwa cyayo ni ukugenzura ingano ya gaze isohoka yinjira mu gufata inshuro nyinshi, ku buryo umubare munini wa gaze ya gazi isohoka muri feri yo gufata kugirango isubiremo. Umuyoboro wa EGR ni ikintu cyingenzi kandi gikomeye mubikoresho bya gaze ya gaze.
EGR valve igabanijwemo ubwoko bubiri: ubwoko bwubukanishi nubwoko bwa elegitoronike.
Umuyoboro wa EGR ugabanya ubushyuhe bwicyumba cyo gutwika uyobora gaze isohoka isohoka mu gutwika moteri kugeza kuri feri yinjira kugirango igire uruhare mu gutwika, kuzamura imikorere ya moteri, kunoza ibidukikije byaka, no kugabanya umutwaro kuri moteri, kugabanya neza imyuka ya NO ivanze, kugabanya gukomanga, no kongera igihe cya buri kintu. ubuzima bwa serivisi.
Izina ryuzuye ni Exhaust Gas Recirculation, ni ukuvuga gaze ya gaze ya gaze [1] Sisitemu ikoreshwa mukugabanya imyuka ya azote (NOX) muri gaze ya gaze. Azote na ogisijeni bifata imiti gusa mu gihe cy'ubushyuhe bwinshi no mu bihe by'umuvuduko mwinshi, kandi ubushyuhe n'umuvuduko mu cyumba cyaka cya moteri byujuje ibi bihe, cyane cyane mu kwihuta ku gahato. Iyo moteri ikora munsi yumutwaro, valve ya EGR irakinguka, ituma gaze ya gaze ya gaze yinjira mumashanyarazi yinjira no mucyumba cyaka hamwe nuruvange rwaka. Umuyoboro wa EGR ufunzwe ubusa, kandi gaze ya gaze isubirwamo kuri moteri. Gazi isohora ibinyabiziga ni gaze idashya (idafite lisansi na okiside) ititabira gutwikwa mu cyumba cyaka. Igabanya ubushyuhe bwumuriro nigitutu mukuramo igice cyubushyuhe buterwa no gutwikwa kugirango bigabanye umusaruro wa oxyde ya azote. Umubare wa gaze ya gaze yinjira mucyumba cyo gutwika yiyongera hamwe na moteri n'umuvuduko
Umwuka wa gaze ya gazi ni uburyo igice cya gaze ya gaze yinjizwa mumyuka ihumeka (cyangwa imvange) mugihe cyimikorere ya moteri, hanyuma igasubira muri silinderi kugirango izenguruke kugirango yitabire gutwikwa. Igikorwa cyayo nukugabanya imyuka ya NOx. NOx ni gaze yangiza cyane umubiri wumuntu, ikorwa cyane cyane mubushyuhe bwinshi kandi bikungahaye kuri ogisijeni. Mugihe cyimikorere ya moteri, niba igice cya gaze ya gaze yongeye gusubizwa muri silinderi mugihe gikwiye kandi gikwiye, kubera ko igice kinini cya gaze ya gaze ifite ingufu zingana nubushyuhe bwihariye, CO2, gaze ya gaze irashobora gukuramo igice yubushyuhe buterwa no gutwikwa no kuyikura muri silinderi, kandi igira ingaruka nziza muruvange. Ingaruka runaka yo kugabanuka, bityo kugabanya ubushyuhe ntarengwa hamwe na ogisijeni yibintu bya moteri yaka, bityo bikagabanya imiterere ya NOx.
Nyamara, gaze ya gaze irenze urugero izagira ingaruka kumikorere isanzwe ya moteri, cyane cyane iyo moteri ikora kumuvuduko udafite akamaro, umuvuduko muke n'umutwaro muke kandi moteri ikora mubukonje, kandi mugihe ingufu za moteri zisabwa mumitwaro yuzuye (trottle yuzuye), kuzenguruka gaze ya gaze izagira ingaruka zikomeye kumikorere ya moteri. Kubwibyo, ingano ya gaze ya gaze yitabira kuzenguruka igomba guhita ihindurwa ukurikije imikorere nyayo ya moteri nimpinduka mubikorwa. Imyitozo yerekanye ko, ukurikije imiterere ya moteri zitandukanye, ingano ya gaze ya gaze igira uruhare mukuzenguruka muri rusange iratandukanye hagati ya 6% na 13%.
Kugirango umubare w’ibicuruzwa bya gaze bisubirwamo bitagira ingaruka zikabije ku mikorere ya moteri, moteri igezweho igenzurwa na elegitoronike nayo ifata ingamba zo kugenzura ibintu bifunze kugira ngo gaze izenguruke, kandi hashyirwaho icyuma cya EGR cyerekana icyuma gisubiramo gaze. valve (moderi zimwe na zimwe zikoresha ibyuma byerekana ubushyuhe bwa gaze). cyangwa sensor sensor), gufunga-gufunga gukosora ibitekerezo byo kugenzura umubare nyawo wa gaze ya gaze ya gaze irakorwa. Umwanya wurugendo rwubucuruzi. Uburebure bwa etage kuva hasi ni buke, kandi igipimo cyo gukoresha umwanya wimbere nicyo kinini mubicuruzwa bisa, biri hejuru ya 19% ugereranije nibicuruzwa bisa; umwanya munini
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