Ukubuyiselwa kwevalvu ye-EGR Ingabe kuyadingeka ukushintshwa?
Umsebenzi we-valve ye-EGR kanye nomthelela womonakalo.
I-valve ye-EGR (i-valve yokubuyisela i-exhaust gas) iyisici esibalulekile sokulawula injini yezimoto, efakwe enjinini ukulawula inani lokubuyisela i-exhaust gas okubuyiselwa ohlelweni lokungenisa. Uma i-valve ye-EGR yonakele, izoholela ezinkingeni ezifana nesivinini esingazinzile sokungaqhubeki, ukusheshisa okubi, ukusetshenziswa kukaphethiloli okwandisiwe, kanye namandla anganele. Isizathu sokubuyiselwa emuva ngokuvamile kungenxa yokuthi izingxenye zangaphakathi ze-valve ye-EGR zigqwala ngenxa yokugxila okuphezulu kwe-chlorine kuphethiloli, okuholela ekusebenzeni kabi komzimba we-valve, okungabangela ukungasebenzi kahle kwenjini, futhi ezimweni ezimbi kakhulu, imoto ingama ngesivinini esiphansi, okwandisa ingozi yokuphahlazeka.
Izizathu kanye nesidingo sokukhumbula
Isizathu sokubuyiselwa emuva ngokuvamile kungenxa yokuthi izingxenye zangaphakathi zevalvu ye-EGR zigqwala ngenxa yokugxila okuphezulu kwe-chlorine kuphethiloli, okuholela ekusebenzeni kabi komzimba wevalvu, okungabangela ukungasebenzi kahle kwenjini, futhi ezimweni ezimbi kakhulu, imoto ingama ngesivinini esiphansi, okwandisa ingozi yokuphahlazeka. Ngakho-ke, ukushintshwa kwevalvu ye-EGR ngesikhathi esifanele kuyisinyathelo esibalulekile sokuqinisekisa ukusebenza okuvamile kwenjini nokuphepha kokushayela.
Izinzuzo kanye nokungalungi kokushintsha i-valve ye-EGR
Ukushintsha ivalvu ye-EGR kungaqinisekisa ukusebenza okuvamile kwenjini, kugweme izinkinga ezifana nesivinini esingazinzile sokusebenza kanye nokusheshisa okubi, futhi kunciphise ukusetshenziswa kukaphethiloli kanye namandla anganele. Kodwa-ke, ukushintsha ivalvu ye-EGR kudinga izindleko nesikhathi esithile, futhi kungadingeka uma imoto isisetshenziswe isikhathi eside noma inamamayela amaningi; Kodwa-ke, uma imoto isetshenziswa isikhathi esifushane noma inamamayela ambalwa, ungacabanga ukuqhubeka nokusebenzisa izingxenye zokuqala ukuze uyilungise.
Iyini i-valve ye-egr?
I-valve yokujikeleza kabusha kwegesi yokukhipha umoya
I-valve ye-EGR iyi-valve yokujikeleza kabusha kwegesi yokukhipha umoya. Ingumkhiqizo wokuhlanganiswa kwe-electromechanical ofakwe enjinini yedizili ukulawula inani lokujikeleza kabusha kwegesi yokukhipha umoya elibuyiselwa ohlelweni lokungenisa, futhi liyingxenye ebaluleke kakhulu futhi ebalulekile kudivayisi yokujikeleza kabusha kwegesi yokukhipha umoya.
Umsebenzi oyinhloko we-valve ye-EGR ukulawula inani legesi yokukhipha umoya engena kwi-manifold yokungenisa, ukuze inani elithile legesi yokukhipha umoya ligeleze kwi-manifold yokungenisa umoya ukuze liphinde lijikeleze. Ngokuvamile litholakala ohlangothini lwesokudla lwe-manifold yokungenisa umoya, eduze komzimba we-throttle, futhi linquma inani legesi yokukhipha umoya edluliselwa kwi-manifold yokungenisa ngezinga lokuvulwa kwevalve elawulwa yi-vacuum tube. Ngokuqondisa igesi yokukhipha umoya kusukela ekushisweni kwenjini kuya kwi-manifold yokungenisa umoya ukuze ihlanganyele ekushisweni, ivalve ye-EGR inganciphisa izinga lokushisa legumbi lokushisa, ithuthukise ukusebenza kahle kwenjini, ithuthukise indawo yokushisa, futhi inciphise umthwalo wenjini. Ngesikhathi esifanayo, inganciphisa ngempumelelo ukukhishwa kwamakhemikhali e-carbon monoxide, inciphise ukugoba, futhi yandise impilo yenkonzo yengxenye ngayinye.
Ngaphezu kwalokho, ama-valve e-EGR ahlukaniswe ngezinhlobo ezimbili zokulawula okwenziwa ngomshini kanye nokwe-elekthronikhi ukuze kuvumelane nezidingo zezinjini ezahlukene. Enjinini yesimanje elawulwa ngogesi, ukuze kulawulwe ngokunembile inani lokujikeleza kabusha kwegesi yokukhipha, isu lokulawula i-closed-loop nalo liyasetshenziswa, futhi inzwa yesigaba isethwe ku-valve ye-EGR ukuze izwe isimo sokusebenza kwenjini ngesikhathi sangempela, futhi ngokusho kwalolu lwazi, i-valve ye-EGR ilungiswa ukuze ivuleke futhi ivalwe, ukuze kufezwe ukulawula okunembile inani lokujikeleza kabusha kwegesi yokukhipha.
Ivalvu ye-egr yemoto iphukile, impawu zayo ziyini?
Yiziphi izimpawu ezisobala ongase uzizwe lapho ivalvu ye-EGR yemoto yakho yehluleka?
I-valve ye-EGR, i-valve yesistimu yokujikeleza kabusha kwegesi ephumayo, uma inephutha, imoto izovela uchungechunge lwezimpawu zesixwayiso. Okokuqala, ukungazinzi okungasebenzi kahle noma ngisho nokushaqeka kuyinto evamile, futhi isibani sephutha singakhanya njalo ukukukhumbuza ukuthi unake isimo senjini. Okwesibili, ngoba ukwehluleka kwe-valve ye-EGR kungaholela ekukhishweni komoya okungaphansi kwesilinganiso, imoto ingabhekana namahloni okwehluleka ukudlula ukuhlolwa kwaminyaka yonke.
Uma ivalvu ye-EGR igcinwa ivuliwe, imiphumela ibaluleke kakhulu: imoto izobonisa intuthu emnyama kanye nokuntuleka kokusheshisa, kuyilapho ukusebenza kahle kukaphethiloli kuncipha futhi ukusetshenziswa kukaphethiloli kuyanda. Ngokuphambene nalokho, uma ivalvu ye-EGR ivaliwe, ukukhishwa komoya kuzothinteka futhi kungaholela ngqo ekuhlulekeni ukudlula amazinga okuhlola okuhlolwa kwaminyaka yonke.
Ngokuphathelene nezimbangela zomonakalo we-valve ye-EGR, kunezici eziningana ikakhulukazi: izinkinga zekhwalithi yesistimu yokujikeleza kabusha kwegesi elahliwe, ukulungiswa okungafanele, ikhwalithi kawoyela ephansi kanye nokuguga kwe-valve uqobo. Isibonelo, ukusetshenziswa kukaphethiloli ohlanzekile noma ukungezwa okungafanele kukawoyela kaphethiloli kungaba yinto engazelelwe ebangela ukwehluleka kwe-valve ye-EGR. Ama-valve e-EGR asebenza emazingeni okushisa aphezulu enjini, futhi ngokuhamba kwesikhathi, njengama-valve chamber cover pads nama-rubber rings, azoguga ngenxa yokuguga.
Sekukonke, impilo yevalvu ye-EGR ibalulekile ukuze kugcinwe ukusebenza kahle kwenjini kanye nokukhishwa kwegesi endaweni ezungezile, uma izimpawu ezingenhla sezitholakele, kufanele kufunwe ukulungiswa kochwepheshe ngokushesha okukhulu ukuqinisekisa ukuthi izidingo zokuphepha kokushayela kanye nezemvelo ziyahlangatshezwa.
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