Exhaust igesi recirculation uhlelo

Ngezidingo ezikhulayo zezindinganiso zemvelo, izinhlelo ezengeziwe zengezwa kancane kancane emotweni yesimanje, eshintsha izindlela zokusebenza zenjini yomlilo yangaphakathi, ilungise ukwakheka kwengxube ye-air-fuel, yenza i-hydrocarbon compounds equkethwe ekukhishweni ingasebenzi, njll.

Imishini enjalo ihlanganisa isiguquli se-catalytic, isikhangiso, I-AdBlue nezinye izinhlelo. Sesikhulume ngazo kabanzi. Manje sizogxila ohlelweni olulodwa, okumele wonke umshayeli aqaphe ukusebenza kwalo. Lokhu ukujikeleza kabusha kwegesi ephumayo. Cabanga ukuthi umdwebo wesistimu ubukeka kanjani, usebenza kanjani, yiziphi izinhlobo ezikhona, futhi yiziphi izinzuzo zayo.

Iyini isistimu yegesi yemoto

Ezincwadini zobuchwepheshe kanye nasencazelweni yemoto, lolu hlelo lubizwa nge-EGR. Ukuhunyushwa kwalesi sifinyezo kusuka esiNgisini ngokwezwi nezwi kusho "i-exhaust gas recirculation". Uma ungangeni emininingwaneni yokuguqulwa okuhlukahlukene kwesistimu, empeleni, lena i-valve yokuphindaphinda efakwe kwipayipi exhumanisa ama-intake and exhaust manifolds.

Lolu hlelo lufakwe kuzo zonke izinjini zesimanje ezifakwe iyunithi yokulawula ye-elekthronikhi. I-elekthronikhi ikuvumela ukuthi ulungise ngokunembe kakhudlwana izindlela nezinqubo ezahlukahlukene kuyunithi yamandla, kanye nasezinhlelweni umsebenzi wazo ohlobene eduze nokusebenza kwenjini yomlilo yangaphakathi.

Ngomzuzwana othile, i-EGR flap ivula kancane, ngenxa yokuthi i-exhaust ingena kancane ohlelweni lokuthatha injini (ukuthola ulwazi oluthe xaxa mayelana nedivayisi kanye nesimiso sokusebenza kwayo, funda kokunye ukubuyekeza). Ngenxa yalokho, ukugeleza komoya omusha kuxutshwa kancane negesi yokukhipha umoya. Kulokhu, umbuzo uphakama: kungani sidinga amagesi okukhipha igesi ohlelweni lokuthatha, uma inani elanele le-oxygen liyadingeka ukuze kusebenze kahle injini? Uma kukhona inani elithile le-oxygen engashisi kumagesi akhipha umoya, i-lambda probe ingabonisa lokhu (kuchazwa ngokuningiliziwe lapha). Ake sizame ukubhekana nalokhu okubonakala kuwukuphikisana.

Inhloso yohlelo lokujikeleza kabusha kwegesi ephumayo

Akuyona imfihlo kunoma ubani ukuthi lapho uphethiloli nomoya ocindezelwe ku-cylinder ushiswa, akukhishwa amandla ahloniphekile kuphela. Le nqubo ihambisana nokukhululwa kwenani elikhulu lezinto ezinobuthi. Okuyingozi kakhulu kulawa ama-nitrogenous oxide. Ngokwengxenye balwa ne-catalytic converter, efakwe ohlelweni lokukhipha imoto (iziphi izakhi lolu hlelo luqukethe, futhi lusebenza kanjani, funda ngokwehlukana).

Enye indlela yokunciphisa okuqukethwe kwezinto ezinjalo ekukhishweni ukuguqula ukwakheka kwengxube ye-air-fuel. Isibonelo, iyunithi yokulawula ye-elekthronikhi inyusa noma yehlisa inani likaphethiloli elijovwe endaweni entsha yomoya. Lokhu kubizwa ngokuthi yi-MTC ubumpofu/ukucebisa.

Ngakolunye uhlangothi, lapho kungena i-oxygen eyengeziwe kusilinda, izinga lokushisa elivuthayo lomoya / ingxube kaphethiloli liya phezulu. Phakathi nale nqubo, i-nitrogen ikhishwa ekuhlanganisweni kokubola okushisayo kukaphethiloli noma udizili kanye namazinga okushisa aphezulu. Lesi sakhi samakhemikhali singena ekuphenduleni kwe-oxidative nge-oxygen, eyayingenaso isikhathi sokushisa. Ngaphezu kwalokho, izinga lokwakheka kwalawa ma-oxide lihlobene ngokuqondile nezinga lokushisa lendawo yokusebenza.

Inhloso yesistimu yokubuyisela kabusha iwukunciphisa inani lomoya-mpilo endaweni entsha yomoya. Ngenxa yokuba khona kwegesi elincane lokukhipha igesi ekubunjweni kwe-VTS, ukupholisa kancane kwenqubo yomlilo kumasilinda kunikezwa. Kulesi simo, amandla enqubo ngokwayo ayishintshi, njengoba umthamo ofanayo uqhubeka ugeleza ku-cylinder, equkethe inani le-oxygen edingekayo ukuze kuthungelwe uphethiloli.

Ukugeleza kwegesi ngokuvamile kubhekwa njenge-inert, njengoba kungumkhiqizo wokushiswa kwe-HTS. Ngenxa yalesi sizathu, ngokwayo, ayisakwazi ukuvutha. Uma inani elithile lamagesi okukhipha umoya lixubene engxenyeni entsha yengxube yamafutha omoya, izinga lokushisa lomlilo lizokwehla kancane. Ngenxa yalokhu, inqubo ye-nitrogen oxidation ngeke isebenze kancane. Yiqiniso, recirculation kancane kunciphisa amandla iyunithi amandla, kodwa imoto igcina dynamism yayo. Lokhu kungalungile akusho lutho kangangokuthi cishe akunakwenzeka ukubona umehluko kwezokuthutha ezijwayelekile. Isizathu siwukuthi le nqubo ayenzeki ezindleleni zamandla enjini yomlilo yangaphakathi, lapho ijubane layo likhuphuka. Isebenza kuphela nge-rpm ephansi naphakathi (kumayunithi kaphethiloli) noma nge-rpm engenzi lutho futhi ephansi (uma kuyizinjini zikadizili).

Ngakho-ke, inhloso yohlelo lwe-EGR ukunciphisa ubuthi be-exhaust. Ngenxa yalokhu, imoto inamathuba amaningi okungena kuhlaka lwezindinganiso zemvelo. Isetshenziswa kunoma iyiphi injini yesimanje yangaphakathi evuthayo, kungakhathaliseki ukuthi inguphethiloli noma udizili. Okuwukuphela kwesexwayiso ukuthi isistimu ayihambisani namanye amayunithi afakwe ama-turbocharger.

Izimiso zokusebenza ezijwayelekile zohlelo lokujikeleza kabusha kwegesi ephumayo

Nakuba namuhla kunezinhlobo eziningana zezinhlelo lapho ukuxhumeka kwe-multifold exhaust ku-inlet ngokusebenzisa i-valve ye-pneumatic kufezeka, banesimiso esivamile sokusebenza.

I-valve ngeke ihlale ivulekile. Lapho injini ebandayo iqala, isebenza ngokungenzi lutho, futhi futhi lapho ifinyelela isivinini esiphezulu se-crankshaft, i-throttle kufanele ihlale ivaliwe. Kwezinye izindlela, uhlelo luzosebenza, futhi igumbi elivuthayo leqembu ngalinye le-cylinder-piston lizothola inani elincane lemikhiqizo yokushiswa kukaphethiloli.

Uma idivayisi izosebenza ngesivinini sokungenzi lutho senjini noma inqubo yokufinyelela izinga lokushisa layo lokusebenza (mayelana nokuthi kufanele libe yini, funda lapha), iyunithi izoba nokungazinzi. Ukusebenza kahle okuphezulu kwe-valve ye-EGR kufinyelelwa kuphela lapho injini isebenza eduze ne-avareji ye-rpm. Kwezinye izindlela, ukugcwala kwe-nitrogen oxides kuphansi kakhulu.

Lapho injini ifudumala, izinga lokushisa elivuthayo emakamelweni aliphezulu kangangokuthi inani elikhulu le-nitrous oxides lakhiwe, futhi ukubuyisela inani elincane lokukhipha amasilinda akudingekile. Okufanayo kwenzeka ngesivinini esiphansi. Lapho injini ifinyelela isivinini esiphezulu, kufanele ithuthukise amandla aphezulu. Uma i-valve iqalisiwe, izophazamisa kuphela, ngakho-ke, kule modi, uhlelo luzoba sesimweni esingasebenzi.

Kungakhathaliseki ukuthi hlobo luni lwezinhlelo, into eyinhloko kuzo i-flap evimbela ukufinyelela kwamagesi okukhipha igesi ohlelweni lokuthatha. Njengoba izinga lokushisa eliphezulu lokugeleza kwegesi lithatha ivolumu eyengeziwe kune-analogue epholile, igesi ephumayo idinga ukupholiswa ukuze ukusebenza kahle kokuvutha kwe-HTS kunganciphi. Kulokhu, kukhona isipholile esengeziwe noma i-intercooler ehambisana nesistimu yokupholisa injini. Isekhethi kumodeli yemoto ngayinye ingase yehluke, kodwa izoba nerediyetha ezinzisa inqubo yokugcina izinga lokushisa elisezingeni eliphezulu ledivayisi.

Ngokuqondene nezinjini ze-diesel, i-valve kuzo ivuliwe ngo-XX. I-vacuum ohlelweni lokuthatha idonsa igesi yokukhipha kumasilinda. Kule modi, injini ithola cishe amaphesenti angu-50 wegesi yokukhipha (ngokuphathelene nomoya omusha). Njengoba isivinini sikhula, i-activator ye-damper kancane kancane iyihambisa endaweni evaliwe. Lena indlela udizili osebenza ngayo.

Uma sikhuluma ngeyunithi ye-petroli, khona-ke ukuhlushwa okuphezulu kwamagesi okukhipha igesi endaweni yokuphuza kugcwele ukusebenza kabi kwenjini yangaphakathi yomlilo. Ngakho-ke, kulokhu, ukusebenza kwesistimu kuhluke kancane. Ivalvu ivuleka lapho injini ifinyelela isivinini esimaphakathi. Ngaphezu kwalokho, okuqukethwe kokukhipha engxenyeni entsha ye-BTC akufanele kudlule amaphesenti angu-10.

Umshayeli ufunda mayelana nokukhiqizwa kabusha okungalungile ngesignali Yenjini Yokuhlola kudeshibhodi. Nakhu ukuhlukaniswa okuyinhloko isistimu enjalo engaba nayo:

• Inzwa yokuvula i-flap iphukile. Imvamisa, ngaphandle komthamo ongalungile kanye nesibani sokukhanya ekucoceni, akukho okwenzekayo okubucayi.
• Ukulimala kwe-valve noma inzwa yayo. Isizathu esiyinhloko sokungasebenzi kahle okunjalo ukuxhumana njalo namagesi ashisayo aphuma emotweni. Kuye ngohlobo lwesistimu, ukuhlukaniswa kwalesi sici kungase kuhambisane nokuncipha noma ukunothiswa okuphambene kwe-MTC. Uma izinjini zisebenzisa isistimu ehlanganisiwe efakwe izinzwa ezifana ne-MAF ne-MAP, khona-ke lapho ingenzi lutho ingxube ithuthukiswa ngokweqile, futhi ngesivinini esikhulu se-crankshaft, i-BTC iyancipha kakhulu.

Lapho uhlelo luhluleka, uphethiloli noma udizili uvutha kabi, ngenxa yokuthi kwenzekani ukungasebenzi kahle okuhambisana nakho, ngokwesibonelo, insiza yokusebenza ye-catalyst iyancipha kakhulu. Yile ndlela indlela yokuziphatha kwenjini ebukeka ngayo ekusebenzeni nge-exhaust gas return mechanism.

Ukuzinzisa isivinini sokungenzi lutho, iyunithi yokulawula ilungisa ukusebenza kwesistimu kaphethiloli kanye nokuthungela (uma kuyiyunithi kaphethiloli). Kodwa-ke, akakwazi ukubhekana nalo msebenzi kwimodi yesikhashana, ngoba ukuvula i-throttle kwandisa kakhulu i-vacuum, futhi ingcindezi yokukhipha ikhuphuka kakhulu, ngenxa yokuthi igesi yokukhipha igesi igeleza ku-damper evulekile.

Ngenxa yalokho, injini ayitholi inani le-oxygen elidingekayo ukuze kushiswe ngokuphelele uphethiloli. Kuye ngezinga lokuwohloka, imoto ingase iqhume, ishaye kabi, ukungazinzi noma ukungabikho okuphelele kwe-XX, injini yomlilo yangaphakathi ingase iqale kabi, njll.

Ukugcotshwa kwenkungu kukhona ekuthatheni okuhlukahlukene kweyunithi. Ngokuthintana kwayo njalo namagesi aphumayo ashisayo, indawo yangaphakathi ye-manifold, ama-valve, indawo yangaphandle yama-injection nama-spark plugs azombozwa ngokushesha ngamadiphozithi ekhabhoni. Kwezinye izimo, ukuthungela kukaphethiloli kungenzeka ngaphambi kokuthi i-BTC ingene kusilinda (uma ucindezela i-accelerator pedal ngokucijile).

Ngokuqondene nesivinini esingazinzile sokungenzi lutho, uma kwenzeka ukwehluleka kwe-valve ye-Ugr, inganyamalala ngokuphelele, noma ingakhuphukela emikhawulweni ebalulekile. Uma imoto ifakwe othomathikhi, khona-ke umshayeli esimweni sesibili kuzofanele achithe imali ekulungiseni okuzenzakalelayo. Njengoba umkhiqizi ngamunye esebenzisa inqubo yokukhishwa kabusha kwegesi ephumayo ngendlela yakhe, ukungasebenzi kahle kwalolu hlelo kungumuntu ngamunye ngokwemvelo. Futhi, imiphumela yalokhu ithonywa ngokuqondile isimo sobuchwepheshe seyunithi yamandla, isistimu yokuthungela, kanye nesistimu kaphethiloli.

Ukukhubaza uhlelo kuzokwenza injini kadizili isebenze kanzima uma ingenzi lutho. Injini kaphethiloli izosebenzisa uphethiloli ngendlela engafanele. Kwezinye izimo, i-catalyst ivala ngokushesha ngenxa yenani elikhulu le-soot elivela ngenxa yokusebenzisa ingxube ye-air-fuel engalungile. Isizathu siwukuthi ugesi wemoto yesimanje yakhelwe lolu hlelo. Ukuze uvimbele iyunithi yokulawula ekwenzeni ukuchitshiyelwa kokuphinda kujikelezwe, udinga ukuyibhala kabusha, njengalapho ulungisa i-chip (funda ngale nqubo. lapha).

Izinhlobo zesistimu yokujikeleza kabusha

Emotweni yesimanje, eyodwa yezinhlobo ezintathu zezinhlelo ze-EGR ingafakwa kuyunithi yamandla:

1. Ngokuhambisana ne-Euro4 eco-standard. Lolu uhlelo lwengcindezi ephezulu. I-flap itholakala ngokuqondile phakathi kwe-intake and exhaust manifolds. Lapho uphuma emoteni, umshini ume ngaphambi kwe-turbine. Kulokhu, i-valve ye-electro-pneumatic isetshenziswa (ngaphambilini, i-analogue ye-pneumo-mechanical yayisetshenziswa). Isenzo sohlelo olunjalo simi kanje. I-Throttle ivaliwe - injini ayisebenzi. I-vacuum epheshaneni lokungenisa incane, ngakho-ke i-flap ivaliwe. Uma ucindezela i-accelerator, i-vacuum emgodini iyanda. Ngenxa yalokho, ukucindezela emuva kudalwe ohlelweni lokuthatha, ngenxa yokuthi i-valve ivula ngokuphelele. Inani elithile legesi ephumayo libuyiselwa kumasilinda. Kulokhu, i-turbine ngeke isebenze, ngoba ingcindezi yegesi yokukhipha iphansi, futhi ayikwazi ukuzungeza i-impeller yayo. Amavalvu omoya awavali ngemva kokuvulwa kuze kube yilapho isivinini semoto sehla sibe yinani elifanele. Ezinhlelweni zesimanjemanje, ukwakhiwa kabusha kwe-recirculation kuhlanganisa ama-valve engeziwe nezinzwa ezilungisa inqubo ngokuhambisana nezindlela zemoto.
2. Ngokuhambisana ne-Euro5 eco-standard. Lolu hlelo lunomfutho ophansi. Kulokhu, umklamo uguqulwa kancane. I-damper itholakala kusayithi ngemuva kwesihlungi se-particle (mayelana nokuthi kungani idingeka, nokuthi isebenza kanjani, funda lapha) ohlelweni lwe-exhaust, nasekuthatheni - phambi kwe-turbocharger. Inzuzo yalokhu kuguqulwa ukuthi amagesi akhipha umoya anesikhathi sokupholisa kancane, futhi ngenxa yokuhamba kwawo ngesihlungi, ayasuswa ku-soot nezinye izingxenye, ngenxa yokuthi idivayisi ohlelweni lwangaphambili inokuphila okufushane okusebenzayo. . Lolu hlelo luhlinzeka ngokubuya kwegesi yokukhipha umoya futhi ngemodi yokushaja, njengoba i-exhaust idlula ngokuphelele ku-impeller ye-turbine bese iyiphotha. Ngenxa yomshini onjalo, isistimu ayinciphisi amandla enjini (njengoba abanye abashayeli bezimoto bethi, "ayiminyanisa" injini). Kumamodeli amaningi ezimoto zanamuhla, isihlungi sezinhlayiya kanye ne-catalyst ziyavuselelwa. Ngenxa yokuthi i-valve kanye nenzwa yayo itholakala kude neyunithi yemoto elayishwe ngokushisa, abavame ukwehluleka ngemva kwezinqubo eziningana ezinjalo. Ngesikhathi sokuvuselelwa, i-valve izovalwa njengoba injini idinga uphethiloli owengeziwe kanye ne-oxygen eyengeziwe ukuze ikhulise okwesikhashana izinga lokushisa ku-DPF futhi ishise umule owuqukethe.
3. Ngokuhambisana ne-Euro6 eco-standard. Lolu uhlelo oluhlanganisiwe. Umklamo wayo uqukethe izakhi eziyingxenye yamadivayisi achazwe ngenhla. Njengoba ngayinye yalezi zinhlelo isebenza ngemodi yayo kuphela, amasistimu wokudonsa kanye ne-exhaust enjini evuthayo yangaphakathi afakwe ama-valve avela kuzo zombili izinhlobo zezinqubo zokujikeleza kabusha. Lapho ingcindezi ku-multifold intake iphansi, isigaba esijwayelekile senkomba ye-Euro 5 (ingcindezi ephansi) siyasebenza, futhi lapho umthwalo ukhuphuka, isiteji siyasebenza, esisetshenziswa emishinini ehambisana ne-eco standard Euro 4 ( high pressure).

Lena yindlela amasistimu asebenza ngayo okuyingxenye yomjikelezo wangaphandle (inqubo yenzeka ngaphandle kweyunithi yamandla). Ngaphezu kwalokho, kukhona uhlobo oluhlinzeka ngokuhlinzekwa kwangaphakathi kwamagesi okukhipha umoya. Iyakwazi ukucisha i-exhaust ethile njengokungathi ingena eningi. Kuphela le nqubo iqinisekiswa by cranking kancane camshafts. Ukuze wenze lokhu, i-phase shifter ifakwe ngokungeziwe kumshini wokusabalalisa igesi. Lesi sici, kumodi ethile yokusebenza yenjini yomlilo yangaphakathi, sishintsha kancane isikhathi se-valve (kuyini, nokuthi banaliphi inani lenjini, lichazwa. ngokwehlukana).

Kulokhu, ama-valve womabili wesilinda avuleka ngesikhathi esithile. I-exhaust gas concentration engxenyeni entsha ye-BTC incike ekutheni la ma-valve avuleka isikhathi esingakanani. Ngalesi nqubo, i-inlet ivuleka ngaphambi kokuba ipiston ifike endaweni ephezulu efile futhi i-outlet ivalwe ngaphambi nje kwe-TDC ye-piston. Ngenxa yalesi sikhathi esifushane, inani elincane le-exhaust ligeleza ohlelweni lokuthatha bese limuncwa kusilinda njengoba ipiston iqonda ku-BDC.

Inzuzo yalokhu kuguqulwa ukusatshalaliswa okuthe xaxa kwegesi yokukhipha kumasilinda, kanye nejubane lesistimu liphakeme kakhulu kunesimo sokuphindaphinda kwangaphandle.

Izinhlelo zesimanje zokubuyisela kabusha zihlanganisa i-radiator eyengeziwe, isishintshi sokushisa esivumela ukuthi igesi yokukhipha igesi ipholiswe ngokushesha ngaphambi kokuba ingene emgudwini wokungena. Akunakwenzeka ukucacisa ukucushwa okuqondile kohlelo olunjalo, ngoba abakhiqizi bezimoto basebenzisa le nqubo ngokuya ngamasu ahlukene, futhi izakhi zokulawula ezengeziwe zingatholakala kudivayisi.

Ama-valve okubuyisela igesi

Ngokwehlukana, kufanele kukhulunywe ngezinhlobonhlobo zama-valve e-EGR. Zihlukene ngendlela ezibuswa ngayo. Ngokwalokhu kuhlukaniswa, zonke izindlela zihlukaniswe zibe:

• Ama-valve we-pneumatic. Lolu hlobo lwedivayisi alusasetshenziswa. Banomgomo wokusebenza kwe-vacuum. I-flap ivulwa yi-vacuum ekhiqizwa epheshaneni lokuthatha.
• I-Electro-pneumatic. I-electrovalve elawulwa yi-ECU ixhunywe ku-valve ye-pneumatic ohlelweni olunjalo. I-electronics yesistimu ye-on-board ihlaziya izindlela ze-motor, futhi ngokufanele ilungise ukusebenza kwe-damper. Iyunithi yokulawula ye-elekthronikhi ithola amasiginali avela kuzinzwa zokushisa nokucindezela komoya, izinga lokushisa elipholile, njll. futhi, kuye ngedatha eyamukelwe, ivula idrayivu kagesi yocingo. I-peculiarity yama-valve anjalo ukuthi i-damper kuwo ivuliwe noma ivaliwe. I-vacuum ohlelweni lokuthatha ingadalwa yiphampu ye-vacuum eyengeziwe.
• I-elekthronikhi. Lokhu ukuthuthukiswa kwakamuva kwezinqubo. Ama-valve e-solenoid asebenza ngokuqondile kumasiginali avela ku-ECU. Inzuzo yalokhu kuguqulwa ukusebenza kwawo okushelelayo. Itholakala ngokusebenzisa izikhundla ezintathu zokudambisa. Lokhu kuvumela isistimu ukuthi ilungise ngokuzenzakalelayo umthamo wegesi ekhishwayo ngokuhambisana nemodi yenjini yomlilo yangaphakathi. Uhlelo alusebenzisi i-vacuum epheshaneni lokungenisa ukulawula i-valve.

Izinzuzo zesistimu yokujikeleza kabusha

Ngokuphambene nenkolelo evamile yokuthi isistimu yemoto evumelana nemvelo ayizuzisi i-powertrain, ukujikeleza kabusha kwegesi ye-exhaust kunezinzuzo ezithile. Omunye angase angaqondi ukuthi kungani kufakwa isistimu enciphisa amandla enjini yomlilo yangaphakathi, uma ezinye izithasiselo ezengeziwe zingasetshenziswa (kodwa kulokhu, isistimu yokukhipha umoya izoba "igolide", ngoba izinsimbi eziyigugu zisetshenziselwa ukuqeda izinto ezinobuthi) . Ngalesi sizathu, abanikazi bemishini enjalo ngezinye izikhathi basethelwa ukukhubaza uhlelo. Naphezu kokubonakala kungalungile, ukujikeleza kabusha kwegesi ephumayo kunenzuzo ngandlela thize kuyunithi yamandla.

Nazi ezinye izizathu zale nqubo:

1. Enjinini kaphethiloli, ngenxa yenombolo ephansi ye-octane (mayelana nokuthi iyini, futhi iyiphi indima le pharamitha ethinta injini yomlilo yangaphakathi, funda ngokwehlukana) ukuqhunyiswa kukaphethiloli kuvame ukwenzeka. Ukuba khona kwalokhu kungasebenzi kuzoboniswa inzwa yegama elifanayo, elichazwe ngokuningiliziwe lapha... Ukuba khona kwesistimu yokubuyisela kabusha kuqeda lo mphumela omubi. Naphezu kokuphikisana okubonakala sengathi, ukuba khona kwe-valve ye-egr, ngokuphambene nalokho, kwenza kube nokwenzeka ukwandisa amandla eyunithi, isibonelo, uma usetha isikhathi esihlukile sokuthungela ukuthungela kwangaphambili.
2. Ukuhlanganisa okulandelayo kusebenza nasezinjini zikaphethiloli. Ku-throttle yama-ICE anjalo, ngokuvamile kuvame ukwehla kwengcindezi enkulu, ngenxa yokuthi kukhona ukulahlekelwa okuncane kwamandla. Ukusebenza kwe-recirculation kwenza kube nokwenzeka ukunciphisa lo mphumela futhi.
3. Ngokuqondene nezinjini zedizili, kumodi ye-XX, uhlelo luhlinzeka ngokusebenza okuthambile kwenjini yomlilo yangaphakathi.
4. Uma imoto idlula ukulawulwa kwemvelo (isibonelo, lapho uwela umngcele namazwe e-EU, le nqubo iyimpoqo), khona-ke ukuba khona kokuvuselela kwandisa amathuba okudlula leli sheke nokuthola iphasi.

Emamodeli amaningi e-auto, ukucisha kabusha kwesistimu akulula kangako, futhi ukuze injini isebenze ngokuzinzile ngaphandle kwayo, kuzodingeka kwenziwe izilungiselelo ezengeziwe zeyunithi yokulawula ye-elekthronikhi. Ukufaka enye isofthiwe kuzovimbela i-ECU ekuphenduleni ukuntuleka kwezimpawu ezivela kuzinzwa ze-EGR. Kodwa azikho izinhlelo zefekthri ezinjalo, ngakho-ke ukushintsha izilungiselelo ze-electronics, umnikazi wemoto uthatha ingozi yakhe kanye nengozi.

Sengiphetha, sinikeza ividiyo emfushane yopopayi yokuthi ukusebenza kabusha kusebenza kanjani emoteni:

Incazelo elula ye-Exhaust Gas Recirculation (EGR)

Imibuzo nezimpendulo:

Ungahlola kanjani i-valve ye-EGR? Okuthintana namavalvu kunikwe amandla. Ukuchofoza kufanele kuzwakale. Ezinye izinqubo zincike endaweni yokufaka. Ngokuyisisekelo, kuyadingeka ukucindezela kancane ulwelwesi lwe-vacuum ngenkathi injini isebenza.

Iyini i-valve ye-EGR? Lokhu kuyisici esidingekayo ukuze kuncishiswe okuqukethwe kwezinto eziyingozi ekukhishweni (amanye amagesi aqondiswe ku-multifold intake) kanye nokwandisa ukusebenza kweyunithi.

Itholakala kuphi i-valve ye-EGR? Kuncike ekuklanyweni kwenjini. Udinga ukuyibheka endaweni ye-multifold intake (ku-multifold ngokwayo noma epayipini elixhumanisa ukungena enjini).

I-valve yokukhipha umoya isebenza kanjani? Lapho i-throttle ivulwa kakhulu, ngenxa yomehluko wengcindezi ekuthatheni nasekukhipheni okuningi, ingxenye yegesi yokukhipha idonswa ohlelweni lokungenisa lwenjini evuthayo yangaphakathi ngevalvu ye-EGR.