I-valve ye-EGR - iyini futhi ingavele isuswe?

I-valve ye-EGR ingenye yamadivayisi anesibopho sokukhishwa okuphansi kwezinto eziyingozi kumagesi aphumayo, futhi ngesikhathi esifanayo enye yalezo ezibangela izinkinga eziningi. Ukuphuka kwenzeka kaningi, futhi uma injini iyintsha, ingxenye ebiza kakhulu. Izindleko ziyi-PLN 1000 noma ngaphezulu. Ngakho-ke, abantu abaningi bakhetha ukususa noma ukukhubaza i-valve ye-EGR. 

I-valve ye-EGR iyingxenye yesistimu ye-EGR enesibopho sokuvula nokuvala ukugeleza kwamagesi e-exhaust ngepayipi elixhumayo phakathi kwe-exhaust kanye nezinhlelo zokudonsa amanzi. Umsebenzi wakhe uhlose ukwehla kokuqukethwe kwe-oxygen emoyeniefakwa kumasilinda, ngaleyo ndlela yehlise izinga lokushisa futhi ibambezele inqubo yokuvutha. Lokhu, futhi, kunciphisa ukukhishwa kwe-nitrogen oxides (NOx). Ezimotweni zesimanje, i-valve ye-EGR iyingxenye ebalulekile yazo zonke izinto zenjini ezithinta ngokuqondile inqubo yokuvutha. Ngaphandle kwayo, ikhompyutha yokulawula izophucwa elinye lamathuluzi engasetha ngalo, isibonelo, izinga lokushisa elishiwo kusilinda.

I-valve ye-EGR ayinciphisi amandla ngenkathi isebenza.

Kuyavunywa ukuthi i-valve ye-EGR inesibopho sokunciphisa amandla enjini. Ubufakazi balokhu - okungenani emiklamo emidala - kuyimpendulo engcono yokwengezwa kwegesi ngemva kokuxhuma noma ukukhipha i-valve ye-EGR. Abanye abantu, nokho, badida izinto ezimbili lapha - amandla aphezulu anemizwa eqondile.

Kuhle i-mok Injini ifinyelela ubukhulu bayo obukhulu lapho i-accelerator pedal icindezelwa phansi - I-valve ye-throttle ivuleke ngokuphelele. Kulesi simo, i-valve ye-EGR ihlala ivaliwe, i.e. ayikuvumeli ukukhipha amagesi emoyeni. Ngakho-ke akungabazeki ukuthi lokhu kuthinta ukuncishiswa kwamandla aphezulu. Isimo sihlukile ekulayisheni ingxenye, lapho amanye amagesi e-exhaust edlula ohlelweni lwe-EGR bese ebuyela enjinini. Kodwa-ke, khona-ke asikwazi ukukhuluma kakhulu ngokuncipha kwamandla aphezulu, kodwa ngomzwelo ongemuhle, ohlanganisa ukwehla kwempendulo yokwengezwa kwegesi. Kufana nokunyathela igesi. Ukucacisa isimo - lapho i-valve ye-EGR isuswa ngendlela efanayo yokuvula kancane i-throttle, injini ingasheshisa kalula.

Ukukhuluma mayelana ukuncishiswa kwamandla okukhulu singakwazi kuphela uma i-valve ye-EGR ilimele. Ngenxa yokungcola okukhulu, i-valve iyayeka ukuvala ngesikhathi esithile. Lokhu kusho ukuthi kungakhathaliseki ukuthi i-valve ye-throttle ivuleke kangakanani, amanye amagesi aphumayo angena ohlelweni lokuthatha. Futhi-ke, empeleni, injini ingase ingakhiqizi amandla aphelele.

Kungani i-EGR ivaliwe?

Njengazo zonke izingxenye ezibhekele ukuhlinzekwa kwamagesi, i-valve ye-EGR nayo iyangcola ngokuhamba kwesikhathi. I-plaque ifakwe lapho, eqina ngaphansi kwethonya lokushisa eliphezulu, idale uqweqwe olunzima ukususa. Ngaphezu kwalokho, uma, ngokwesibonelo, inqubo yokuvutha ingahambi kahle noma lapho uwoyela wenjini uphela, ukunqwabelana kwamadiphozithi kungcolisa i-valve ngokushesha okukhulu. Kuyinto engenakugwemeka, kanjalo futhi I-valve ye-exhaust gas recirculation iyingxenye edinga ukuhlanzwa ngezikhathi ezithile. Nokho, lokhu kwenziwa kuphela lapho izinkinga ziqala ukuvela.

Iphuphuthekise, isuse, ivale

Ngaphezu kokulungiswa okusobala futhi okulungile kuphela kwe-valve ye-EGR, i.e. ukuyihlanza noma - uma kungasebenzi - esikhundleni sayo kufakwe entsha, abasebenzisi bezimoto kanye nomakhenikha bazijwayeza okuthathu izindlela ezingekho emthethweni nezingezona ezobuciko zokuxazulula inkinga.

• Xhuma i-valve ye-EGR kuhlanganisa ukuvala ukudlula kwayo ngomshini futhi ngaleyo ndlela kuvimbele unomphela ukusebenza kwesistimu. Ngokuvamile, ngenxa yokusebenza kwezinzwa ezihlukahlukene, injini ye-ECU ithola iphutha, isayine nge-Check Engine inkomba.
• Ukukhipha i-valve ye-EGR futhi ubeke esikhundleni salokho okuthiwa yi-bypass, i.e. i-elementi efana nomklamo, kodwa engavumeli amagesi e-exhaust ukuthi angene ohlelweni lokuthatha.
• Ukuvalwa kwe-elekthronikhi kusukela ekusebenzeni kwe-valve ye-EGR. Lokhu kungenzeka kuphela ngama-valve alawulwa ngogesi.

Ngezinye izikhathi enye yezindlela ezimbili zokuqala isetshenziswa ihlangene neyesithathu, ngoba iyunithi yokulawula injini izohlala ibona isenzo somshini ku-valve ye-EGR. Ngakho-ke, ezinjinini eziningi - ngemva kokuxhuma noma ukukhipha i-valve ye-EGR - kusadingeka "ukhohlisa" isilawuli. 

Iyiphi kulezi zindlela enikeza imiphumela emihle? Uma sikhuluma ngemiphumela ngendlela yokusebenza kwenjini engcono kanye nokungabikho kwezinkinga nge-EGR, khona-ke wonke umuntu. Kuncike ekutheni kwenziwa ngendlela efanele, i.e. noshintsho ekuphathweni kwenjini nalo luyacatshangelwa. Ngokuphambene nalokho okubonakala kuwukuphela kwesistimu ye-EGR elungile engenzeka kusukela ekusebenzeni kwenjini ohlelweni lwe-elekthronikhi, ngoba ukungenelela ngomshini akuthinti ukusebenza kwekhompyutha yenjini. Isebenza futhi isebenza kahle ezimotweni ezindala kuphela. 

Ngeshwa ukuphazamisa i-EGR akukho emthethweningoba kuholela ekwandeni kokukhishwa kwe-exhaust. Lapha sikhuluma kuphela ngethiyori nomthetho, ngoba lokhu ngeke kube umphumela ngaso sonke isikhathi. Uhlelo lokuphathwa kwenjini olubhalwe kabusha oluhlanganisa ukuvala i-valve ye-EGR lungaletha imiphumela engcono, kuhlanganisa nendawo ezungezile, kunokulufaka olusha. 

Yiqiniso, kungcono ukufaka esikhundleni se-valve ye-EGR entsha ngaphandle kokuphazamisa ukusebenza kwenjini nhlobo. Ukukhumbula izinkinga owawunazo ngayo, njalo - njalo amashumi ezinkulungwane zamamayela - kufanele uyihlanze ngaphambi kokuthi kuvele amadiphozithi amakhulu aqinile kuyo futhi.