Yintoni ivalvu yePCV kwiimoto
Ivalvu yePCV (ivalvu yomoya ophoqelelweyo weCrankcase) yinxalenye ebalulekileyo yenjini yemoto. Umsebenzi wayo ophambili kukuqondisa umxube okwi-crankcase ukuya kwi-intake manifold ukuze iphinde itshiswe, ukuthintela ukuvuza kwegesi ngqo emoyeni kwaye kubangele ungcoliseko. Kwangaxeshanye, ikwathintela ukonakala kweoyile yenjini kunye nokuguguleka kwenjini.
Ulwakhiwo kunye nomgaqo wokusebenza
Ivalvu yePCV yenziwe ngomzimba wevalvu, ivalvu, isigqubuthelo sevalvu kunye nesipringi, kwaye iqondo lokuvuleka nokuvala kwayo lilawulwa yiqondo lokukhupha umoya kwi-intake manifold. Xa injini isebenza ngesantya esiphantsi okanye ingasebenzi, umzimba wevalvu uvulekile kancinci ukuze kungeniswe inani elincinci lomxube. Ivuliwe ngokupheleleyo ngesantya esiphezulu okanye ngexesha lokukhawulezisa ukwandisa umthamo womoya. Xa injini ibuyela umva, umzimba wevalvu uvala ngokuzenzekelayo ukuthintela i-crankcase ukuba ingaqhumi.
Imisebenzi ephambili
Ukhuseleko lokusingqongileyo lwe-Youdaoplaceholder0: Vimbela igesi exutyiweyo engatshiswanga ukuba ikhutshwe ngqo emoyeni ukuze kuthintelwe ungcoliseko.
I-Youdaoplaceholder0 Khusela ioyile yenjini: Khusela ukuvuza kwegesi ekungcoliseni ioyile kwaye kubangele ukubola, ngaloo ndlela kwandisa ubomi benjini.
Uxinzelelo lokulawula lwe-Youdaoplaceholder0: Lungisa uxinzelelo lwe-crankcase ukuze uthintele ukuvuza kweoyile yokuthambisa.
Ukuba ivalvu yePCV ivalekile, inokukhokelela ekungcolisweni kwe-intake filter element, ukusetyenziswa kwepetroli okwandisiweyo, ukuguguleka kwenjini ngokukhawuleza okanye kwanokonakala. Kubalulekile ukucoca rhoqo izinto ezingcolisayo ezikujikelezileyo (njengokujonga ukuguquguquka komzimba wevalvu kunye nokufunxwa kwevacuum ngexesha lokulungiswa rhoqo).
I-PCV sisifinyezo samagama amathathu athi "Positive Crankcase Ventilation" ngesiNgesi. NgesiTshayina, ithetha inkqubo yokulawula umngcipheko womoya osebenzayo we-crankcase (okanye ipani yeoyile). I-valve ye-PCV yenziwe ngumzimba wevalvu, ivalvu, isigqubuthelo sevalvu kunye nesipilingi, kwaye ayinakuhlulwa. Umsebenzi wayo ophambili kuku: ukungenisa igesi kwi-crankcase kwi-input manifold nge-PCV valve, kwaye inani elincinci lomoya lingena ngqo kwi-input manifold esuka kwisihluzi somoya nge-PCV valve. Oku kuthintela izinto ezinje ngokwakheka komkhenkce kwi-throttle, ukutsha okungaphelelanga, kunye nokuwohloka kokukhutshwa komoya. Ukuthintela igesi ekungeneni emoyeni kwaye kwangaxeshanye ukuthintela ioyile yenjini ekuwohlokeni.
Ekupheleni kwenkqubo yokutsha kwamandla enjini, umxube othile ongatshiyo uvuza kwi-crankcase usuka kwiiringi zepiston phantsi koxinzelelo oluphezulu. Olu hlobo lokuvuza lubizwa ngokuba yi-"blow-by" kushishino. Ezi gesi zivuthuzayo ziya kuphuma kwi-crankcase ziye emoyeni, zibangele ungcoliseko. Ukuba le mixture ingenileyo ayikhutshwa, iya kunyibilikisa neoyile yenjini kwi-crankcase, ibangele ukuba ioyile yonakale kwaye ikhokelele ekugugulekeni kwangaphambi kwexesha kwezixhobo zenjini. Ukususela ngeminyaka yoo-1960, iCalifornia eMelika ibe yeyokuqala ukufuna ukuba iimoto zixhotyiswe ngeenkqubo ze-PCV, eziye zaba luphawu oluyimfuneko kwiimoto.
Uninzi lweenjini zepetroli zixhotyiswe ngeevalvu zePCV (izixhobo zomoya ezinyanzeliswayo ze-crankcase) ukuze kube lula ukutshintshana komoya enjinini. Nangona kunjalo, izinto ezingcolisayo ezikwii-bays zinokuqokelelana zijikeleze iivalvu zePCV, nto leyo enokubangela ukuba zivale. Ukuba ivalvu yePCV ivalekile, igesi engcolisiweyo iya kubuyela kwisihluzo somoya, ingcolise i-element yesihluzo, inciphise amandla okuhluza, nto leyo ekhokelela ekusetyenzisweni kwepetroli okwandisiweyo, ukuguguleka okukhulu kwenjini, kwanokonakala kwenjini. Ke ngoko, kuyimfuneko ukugcina iPCV rhoqo kwaye ususe izinto ezingcolisayo ezijikeleze ivalvu yePCV.
Ivalvu yePCV yivalvu yokulawula umlinganiselo. Ifakwe phakathi kwenkqubo yokungenisa umoya yecrankcase kunye nenkqubo yokungenisa umoya yenjini. Ivalvu yePCV ilawulwa yi-vacuum degree ukulawula ukuhamba komsi oveliswa yinkqubo yokungenisa umoya yecrankcase engena kwinkqubo yokungenisa umoya. Xa injini isebenza ngesantya esiphezulu, ukuhamba komoya kufuneka kube phezulu kunaxa isebenza ngesantya esiphantsi. Kwangaxeshanye, xa injini ifumana umva, ivalvu yePCV kufuneka ikwazi ukucima umoya ukuze ithintele ukuba icrankcase ingaqhumi.
Yonke imoto inombhobho wokukhupha igesi yokukhupha umoya ukusuka enjinini ukuya ngaphandle kwesithuthi. Nangona kunjalo, akunakwenzeka ukususa yonke igesi yokukhupha umoya ngokupheleleyo. Igesi encinci yokukhupha umoya iya kungena kwipani yeoyile ngesithuba esiphakathi kwepiston nodonga lwesilinda. Nje ukuba ioyile negesi ezingena kwipani yeoyile ziqokelelene kwaye zingakwazi ukukhutshwa, ziya kwenza uxinzelelo lomoya, olungagcini nje ngokunciphisa ioyile yenjini kodwa lubangela ukuthambisa okungekho semgangathweni kwiindawo zenjini. Kuya kubangela nemiphumo emibi efana nokusetyenziswa okungaqhelekanga kweoyile yenjini. Ke ngoko, ioyile negesi kwipani yeoyile kufuneka ibe nombhobho wokukhupha umoya. Ngaphambili, ngaphambi komthetho nolawulo longcoliseko lokukhupha umoya kwisithuthi, umbhobho wawuqhagamshelwe kwipani yeoyile ukuze ukhuphe ioyile negesi ngqo emoyeni. Okukhona imoto ikhula, kokukhona ukuvuza kweoyile negesi yokutshisa kusiba nzima, kwaye ioyile yokukhupha umoya ikhutshwa kwipani yeoyile, nto leyo ebangela ungcoliseko lomoya olukhulu.
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Zhuo Meng Shanghai Auto Co., Ltd. uzimisele ukuthengisa iMG&MAXUSiinxalenye zeemoto zamkelekile ukuthenga.
