Iyini ikhava yegumbi le-valve yemoto?
Isembozo segumbi le-valve sixhunywe kakhulu nesembozo se-cylinder yenjini, i-camshaft ifakwe ngaphansi kwesembozo segumbi le-valve, kanti ezinye zezinsiza zomshini wokudonsa ekhanda le-cylinder zivaliwe ukuze kuqinisekiswe ukusebenza okujwayelekile kwendlela yokushayela i-valve yenjini kanye nokuthambisa, isivikelo, isivalo sothuli kanye nazo zonke izingxenye zenjini zenza indawo evaliwe ukuze kuqinisekiswe indawo yokusebenza enhle yezingxenye zangaphakathi zenjini. Nansi imiphumela yekhava ye-valve yegumbi eliphukile:
1. Uma kuthinta ukugcotshwa kwemoto, ukuvuza kukawoyela kukhava yegumbi lama-valve kuzoholela ekungagcobisini okwanele kwegumbi le-valve, okuzodala ukuguga nokudabuka kwezingxenye zenjini isikhathi eside;
2, kuthinta ukuqina komoya kwenjini, ukuvuza kukawoyela kuzophinde kuvuze ingcindezi yokusebenza kwemoto eqalayo, injini ine-valve yokukhipha igesi ephumayo exhunywe ne-throttle, ukuvuza kuzothinta ukuqina kwenjini;
I-3, ibangele injini engcolile, futhi ibangele nomlilo, ukuvuza kwamafutha kuzogeleza eduze kwenjini, kuhlanganiswe nothuli ukwenza udaka, uma uhlangabezana nomlilo ovulekile uzothungela injini, okuyingozi kakhulu.
Yenziwe ngani ivalvu yenjini?
Ama-valve enjini enziwe nge-aluminium ne-alloy steel. I-valve yakhiwe ngekhanda le-valve kanye nengxenye yenduku; I-valve yokudonsa ngokuvamile yenziwa ngensimbi ye-alloy efana nensimbi ye-chromium, insimbi ye-nickel-chromium, futhi i-valve yokukhipha umoya yenziwa nge-alloy ukumelana nokushisa njengensimbi ye-silicon chromium; Kwesinye isikhathi ukuze ulondoloze ingxubevange ekwazi ukumelana nokushisa, khipha ikhanda levalvu enengxubevange ekwazi ukumelana nokushisa, kanye nenduku enensimbi ye-chromium.
Ingabe kuyadingeka ukulungisa ukuvuza kwamafutha kwe-valve chamber cover pad?
Kudingekile ukulungisa i-sepage yamafutha ye-valve chamber cover pad. Ukuvuza kukawoyela kuzoholela ekuqineni komoya kwenjini, kuthinte ukusebenza okuvamile kwenjini, futhi kuholele nasekulahlekeni kwenjini ezimeni ezibucayi. Izimbangela zokugeleza kukawoyela zingase zihlanganise ukuguga kwama-gaskets ekhava ye-valve chamber, ukulahlekelwa amandla okuvala, nokucindezela okweqile kwenjini ngenxa yokuvaleka kwe-valve ye-PCV ohlelweni lokungenisa umoya we-crankcase. Isixazululo kuvame ukufaka esikhundleni sekhava yegumbi le-valve. Uma kutholakala ukuvuza kukawoyela, kufanele kusingathwe kusenesikhathi ukuze kugwenywe ukubhebhethekisa inkinga yokuvuza kukawoyela, kuvikelwe injini, futhi kunwetshwe impilo yesevisi yemoto.
Uyini umsebenzi we-valve yokuhlola esembozweni segumbi le-valve yemoto?
Thuthukisa ukungena komoya okuphoqelekile kwe-crankcase
I-valve yokuhlola esembozweni segumbi le-valve lemoto, evame ukubizwa ngokuthi i-valve ye-PCV, indima yayo eyinhloko ukukhuthaza ukungena komoya okuphoqelekile kwe-crankcase. Lo msebenzi wethula igesi ku-crankcase epayipini lenjini lokudonsa, ukuze la magesi akwazi ukushiswa futhi kusilinda, ngaleyo ndlela kugwenywe ukukhishwa okuqondile kwamagesi e-exhaust, okusiza ukuvikela imvelo nokunciphisa ukungcoliswa komkhathi. Ngaphezu kwalokho, i-valve ye-PCV iphinde isize ukugcina ingcindezi ku-crankcase ingaphansi komfutho womoya, okusiza ukwehlisa ukuvuza kukawoyela wenjini nokwandisa impilo yenjini. Ngokuvamile, lolu hlobo lwe-valve yokuhlola ludlala indima ebalulekile ohlelweni lwenjini yezimoto, oluhambisana nokuvikelwa kwemvelo futhi lunomthelela ekusebenzeni okuzinzile kwesikhathi eside kwenjini.
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