I-valve ye-PCV
Okuqukethwe
I-crankcase ventilation valve (CVKG) noma i-PCV (Positive Crankcase Ventilation) isetshenziselwa ukusetshenziswa ngempumelelo kwakhiwa ku-crankcase ingxube yegesi. Ingxenye ifakwe kumamodeli amaningi esimanje anesistimu yokuphakelwa kukaphethiloli womjovo futhi ithatha ingxenye ethile ekulawuleni ukwakheka kwengxube yamafutha omoya. Ukusebenza okungalungile kwe-valve ye-VKG kuholela ukuchitha uphethiloli и ukusebenza okungazinzile kwenjini yomlilo yangaphakathi.
Sizochaza ngokuningiliziwe mayelana nedivayisi, isimiso sokusebenza, ukuhlukana nezindlela zokuhlola i-valve ye-PCV ngezansi.
Ikuphi i-valve ye-PCV futhi ngeyani?
Indawo ye-valve ye-PCV ngokuqondile incike ekuguqulweni kwemoto. Ngokuvamile, ingxenye yakhelwe kwisembozo se-valve yenjini evuthayo yangaphakathi, kodwa futhi ingafakwa endlini ehlukile, ehlanganiswe nesihlukanisi samafutha, eduze kwayo. Inketho yokugcina isetshenziswa ngenkuthalo ezizukulwaneni zakamuva namamodeli we-BMW neVolkswagen.
Ungathola i-valve ye-crankcase ventilation ngepayipi elithambile elithambile elisuka kulo, elixhunywe epayipini lomoya endaweni ephakathi kwe-multifold intake kanye ne-throttle.
Ukuthi i-valve ye-crankcase ibukeka kanjani ingabonakala esithombeni ngesibonelo esihle.
Где находится клапан вентиляции картерных газов на VW Golf 4, нажмите для увеличения
Где стоит клапан pcv в Audi A4 2.0, нажмите для увеличения
Расположение КВКГ на Toyota Avensis 2.0, нажмите для увеличения
Iyini i-valve yokungenisa umoya ye-crankcase?
Inhloso eyinhloko ye-valve ye-PCV ithi ukulawulwa kwevolumu yegesi ye-crankcaseihlinzekwa esikhaleni se-throttle ngezindlela ezihlukahlukene zokusebenza kwenjini evuthayo yangaphakathi. Lokhu kufeza ukudosa komoya okunembe kakhudlwana ukuze kwakhiwe isilinganiso esifanele sengxube yamafutha omoya. Ngaphezu kwalokho, i-KVKG ivimbela ukusha kwamagesi e-crankcase nge-flashback ekuthatheni.
Idivayisi kanye nendlela ivalvu yokungenisa umoya ye-crankcase isebenza ngayo
Idivayisi ye-valve ye-VKG: ividiyo
Ngokwesakhiwo, le ngxenye ye-crankcase ventilation iyi-valve ye-bypass, ehlanganisa umzimba onamapayipi amagatsha amabili kanye nesici esisebenzayo esinyakazayo.
Kuma-valve e-PCV akhelwe ngaphakathi, izimbobo zokungena nokuphuma zivinjwe i-plunger, futhi kulezo ezisendaweni ehlukile ene-separator kawoyela, ngama-membrane. Iziphethu zivimbela isici sokukhiya ukuthi sihambe ngokukhululeka ngaphandle kwethonya langaphandle.
I-valve ye-VKG isebenza kanjani
Umgomo wokusebenza kwe-valve ye-PCV usekelwe ekushintsheni kwengcindezi yokungena. Ngokwemibandela kungenzeka ukuhlukanisa izifunda ezi-4 eziyisisekelo ze-KVKG ngokwezinga lokuvula kanye nenani lamagesi e-crankcase adlulayo.
Izinga lokuvulwa kwe-valve ye-PCV kuye ngokuthi imodi yokusebenza kwenjini yangaphakathi evuthayo
| Amamodi | I-ICE ayisebenzi | Ukwehliswa/Ukuncipha | Ukunyakaza okufanayo, isivinini esiphakathi | Ukusheshisa, ukuguqulwa okuphezulu |
|---|---|---|---|---|
| Vacuum endaweni eningi yokuthathayo | 0 | Phezulu | Isilinganiso | Phansi |
| Isimo se-valve ye-PCV | Kuvaliwe | ajar | kuvame ukuvuleka | Kuvulwe ngokugcwele |
| Inani lamagesi e-crankcase adlulayo | 0 | encane | Isilinganiso | enkulu |
Kusukela ohlangothini lokungena, ingcindezi edalwe amagesi e-crankcase isebenza ku-valve. Uma idlula amandla asentwasahlobo, isici esivimba imbobo (i-membrane noma i-plunger) siya ngaphakathi, sivula ukufinyelela kwengxube yegesi endaweni yokuhlunga.
Idivayisi ye-valve ye-VKG ku-VW Polo
Ukugcwalisa i-KVKG ku-Chevrolet Lacetti
Ngesikhathi esifanayo, kusukela ohlangothini lwe-outlet, i-valve ithinteka yi-vacuum (ingcindezi engaphansi kwe-atmospheric), eyakhiwe ku-multifold intake. Ukukhawulela indawo yokugeleza kwe-valve kukuvumela ukuthi uqondise kabusha ingxenye yamagesi asuka ku-crankcase, aqoqwe ngaphansi kwesembozo se-valve, esikhaleni esiphakathi kwesihlungi somoya kanye ne-throttle valve. Uma kwenzeka i-flashback kanye nokwehla okubukhali kwe-vacuum ku-multiple intake, ukuphuma kwe-KVKG kuvinjelwe ngokuphelele, ngaleyo ndlela kuvimbele ukushiswa kwengxube yegesi evuthayo.
Yenzani i-valve ye-PCV?
Izinhlobo ze-valve ze-PCV
I-valve ye-PCV ithinta ngokuqondile ukusebenza kwenjini yomlilo yangaphakathi, ithuthukise inqubo yokwakheka kwengxube. Ngokushintsha indawo yokugeleza yesiteshi, ilungisa ukunikezwa kwamagesi e-crankcase aqukethe izinhlayiya ezivuthayo esiteshini somoya ngaphambi nangemuva kwe-throttle. Lokhu kukuvumela ukuthi usebenzise isistimu yokukhipha umoya we-crankcase ngendlela ephumelelayo ngangokunokwenzeka futhi ngesikhathi esifanayo uvimbele ukufakwa kwengxube yomoya ovuthayo engaziwa endaweni eningi.
Uma i-valve ye-crankcase ventilation ihluleka, ifakwa emanzini ngokwedlulele, noma ungasebenzi nhlobo. Ngaphezu kwalokho, esimweni sokuqala, lokhu ngokuvamile akulungisiwe yinoma yiziphi izinzwa, futhi esimweni sesibili, kuholela emizamweni yokulungiswa okungafanelekile kwengxube ye-air-fuel.
Ngenxa yomoya owedlulele ongena ekamelweni elivuthayo, injini yomlilo yangaphakathi iqala kabi, ukwehluleka kungenzeka ngesikhathi sokusheshisa noma kwezinye izimo lapho kudingekile ukwandisa ukudonsa. I-valve jamming ingaholela ekwenyukeni kokusetshenziswa kukaphethiloli kanye nokunothisa ngokweqile kwamaqoqo kaphethiloli, okuholela ekutheni ukusebenza okungalungile kanye nokudlidliza kwenjini ngokungenzi lutho.
I-valve ohlelweni lokungenisa umoya we-crankcase
Izimpawu Nezimbangela Zevalvu Ye-PCV Ephukile
Isivinini se-ICE silenga ngenxa ye-valve ye-PCV nokuxazulula inkinga: ividiyo
Nakuba i-valve ye-crankcase ventilation inomshini olula, ngezikhathi ezithile isahluleka noma ayisebenzi ngendlela efanele. Yiziphi izimpawu ze-valve ye-VKG ephukile? Okuvame kakhulu ukuthi:
- ukudlidliza kwenjini evuthayo yangaphakathi, ehlukile kokuphindwe kathathu;
- ukuhiliza ekuthatheni okuningi ngemuva kwe-progazovka;
- ukwehluleka kwe-traction kusuka ku-3000 kuya ku-5000 rpm;
- Ukushintshashintsha kwe-RPM.
Ngezinkinga ezihambisanayo ne-crankcase ventilation, ukwanda kokusetshenziswa kukawoyela, ukugcoba i-valve ye-throttle kanye namapayipi okungenisa umoya aphuma ku-crankcase kungenzeka.
Yikuphi ukuphuka kwe-valve yegesi ye-crankcase okungaba khona?
Ngokuvamile kukhona ukwephulwa kokuqina kwezindlu ngenxa yokulimala kwemishini (isibonelo, ngesikhathi sokufakwa ngemuva kokuhlanza) noma ukusebenza okungalindelekile, ukuvulwa okungaphelele nokuvalwa kwama-dampers ngenxa yomshado wabo.
Ngakho-ke, izimbangela eziyinhloko zokuhluleka kwe-valve ye-PCV ziyi ukubhujiswa noma ukuminyana izakhi zokukhiya noma amathonya angaphandle.
ukuphuka kwe-valve yegesi ye-crankcase kanye nezimpawu zabo kukhonjisiwe etafuleni.
| ukuphuka | Kungani kubonakala | Izimpawu | Kwenzekani ngenxa |
|---|---|---|---|
| I-Depressurization / ukuvuza komoya |
|
| Umoya ongaziwa we-DMRV udonswa ku-multifold, amagesi e-crankcase aphumela ngaphandle ngokuphelele noma ingxenye. |
| Ukusebenza Okuvaliwe/okuthuthukisiwe |
|
| Amagesi e-crankcase engeziwe anezinhlayiya zikaphethiloli angena ekuthatheni. Ngesikhathi sokufudumala nokulayisha, le modi ilungile, kwezinye izinjini ezivuthayo zangaphakathi ayisebenzi kahle. |
| Ukusebenza okumile/okuncishisiwe |
| Ukugeleza okubaliwe komoya endaweni ethathayo kuphuliwe. Konke ukugeleza kwamagesi e-crankcase kunikezwa phambi kwe-throttle valve. |
I-CVCG ingase ingasebenzi kahle ngenxa yokungasebenzi kahle ohlelweni lokungenisa umoya we-crankcase noma izinkinga nge-CPG. Kulokhu, bukhali umthamo wamagesi e-crankcase uyakhulaukudlula ku-valve, kanye namathuba okugcoba ngokushesha. Ngakho-ke, ngaphambi kokuhlola i-valve ye-PCV, kufanele uqiniseke ukuthi azikho izinkinga eziholela ekukhululweni kwamafutha ngokuphefumula noma ukukhishwa kwayo ngama-gaskets nezimpawu.
Hlola i-valve ye-PCV
I-autoscanner ye-Diagnostic Rokodil ScanX
Ungahlola ama-valve e-PCV ngokomzimba kanye nendlela yesoftware. Esimweni sesibili, uzodinga umsizi, isithwebuli sokuxilonga noma i-adaptha ye-OBD II kanye nesicelo esikhethekile se-PC noma idivayisi yeselula. Enye yezinketho ezinhle kakhulu yi-autoscanner Rokodil ScanX, njengoba ihambisana nazo zonke izinhlobo zezimoto, buka ukusebenza kwazo zonke izinzwa nezinhlelo, inikeza amathiphu amaphutha.
Ukuxilongwa ngokomzimba, okwenziwa ngokuhlola impendulo ye-CVCG kumathonya angaphandle avela kumathuluzi, i-wrench evulekile kuphela edingekayo ukuze kukhishwe i-valve.
Kwezinye izimoto, okuyizinhlobo ezintsha ze-BMW, i-valve ye-PCV ayikhipheki futhi ayihlukaniseki. Kuhlole ngokomzimba akunakwenzeka ngaphandle kokubhubhisa isikebhe. Kulokhu, ungabheka noma usebenzisa ukuxilonga ikhompuyutha, noma ngokufaka esikhundleni se-node eyaziwayo.
Ukuze uhlole ukusebenza kwe-valve ye-crankcase, landela lokhu okulandelayo:
Yenza ngokwakho VKG valve hlola iToyota Vitz: ividiyo
- Khipha i-valve emgodini osesembozweni se-valve, ngemva kokukhipha i-hose epayipini lokuphuma.
- Hlola i-inlet ukubona ukungcola, khipha uma kunesidingo.
- Phuma i-valve ngomlomo wakho ohlangothini lokuphuma: umoya akufanele udlule ku-KVKG esebenzayo.
- Phinda unamathisele ipayipi lokungenisa umoya endaweni yokuphuma.
- Qala futhi ufudumale injini.
- Vala i-valve yokungena ngokuqinile ngomunwe wakho. Engxenyeni esetshenziswayo, lesi senzo sihambisana nokuchofoza futhi kuzwakala i-vacuum - umunwe "uzonamathela" emgodini.
Ukuhlola i-valve yokufaka umoya ye-crankcase kwenziwa ngokuhlelekile ngokuma kwe-valve ye-throttle lapho ingenzi lutho.
Ukuhlola i-valve ye-PCV kusetshenziswa ukuxilongwa kwekhompyutha esibonelweni semoto ye-Chevrolet Lacetti:
Ukuhlolwa kochwepheshe kwe-valve ye-PCV ku-Chevrolet Lacetti enokuxilongwa kwekhompyutha: ividiyo
- Khumula i-valve ngesikrufu esivulekile esingu-24-mm, ngemva kokukhipha ipayipi epayipini lokuphuma.
- Namathisela ipayipi endaweni yokuphuma.
- Xhuma isithwebuli noma i-adaptha ye-OBD II kusokhethi yokuxilonga endaweni yabagibeli.
- Qalisa uhlelo ukuze uthole ukuxilonga futhi ubonise ukufundwa kwendawo ye-throttle (indawo yangempela yesilawuli kude).
- Qala futhi ufudumale injini. Kulokhu, inani lendawo yangempela yenzwa ekude kufanele libe phakathi kwezinyathelo ezingama-35-40.
- Xhuma i-valve yokungena nge-duct tape noma uxhume umsizi ngomunwe wakho. Ipharamitha kufanele ikhuphuke cishe ngezinyathelo ezinhlanu ezi-5.
- Khipha ipayipi lokungenisa umoya endaweni ye-valve ye-PCV. Uma i-CVCG ILUNGILE, indawo ye-throttle yangempela izokwehla ibe yizinyathelo ezi-5. Lokhu kubonisa ukuthi i-valve ibivimbela ukudlula kwamagesi ekungeneni lapho bengenzi lutho.
Iseviswa i-valve yokungenisa umoya ye-crankcase
Esinye sezizathu eziyisisekelo zokusebenza okungalungile kwe-CVKG ukungcoliswa kwezindawo zokusebenza. Lokhu kungagwenywa ngokuhlanza i-valve yokungenisa umoya ye-crankcase. njalo ngo-20–000 km.
Ukufaka amafutha kancane ebusweni be-KVKG kuyinqubo yemvelo. Kodwa-ke, uma iba emafutheni ngokushesha kune-10 km, lesi yisizathu sokuxilonga uhlelo lokuphefumula kwe-crankcase. Kungenzeka ukuthi isihlukanisi samafutha noma ipayipi le-vent livalekile.
Indlela yokuhlanza i-valve ye-PCV
Ukuhlanza i-valve ye-PCV ngesifutho se-WD-40
Le mikhiqizo elandelayo ifaneleka kakhulu ukuhlanza i-valve ye-PCV:
- i-carburetor noma i-injector cleaner;
- i-brake cleaner;
- WD-40;
- uphethiloli noma udizili.
Uma usebenzisa i-ejenti ngesimo se-aerosol eneshubhu, kufanele ijovwe ngepayipi lokungena ku-KVKG. Uphalafini kanye nophethiloli wedizili kungajovwa ngesirinji noma isirinji. Inqubo yokuhlanza kufanele iphindwe kuze kube yilapho wonke amadiphozi ekhishwa.
Ngemuva kokuhlanza, udinga ukuhlola ukusebenza kwe-valve ye-PCV usebenzisa enye yezindlela ezichazwe ngenhla. Uma ukushaywa kwamanzi kungasizi, ingxenye kudingeka esikhundleni.
Imibuzo evame ukubuzwa mayelana ne-valve ye-crankcase
Iyini i-valve ye-crankcase ventilation?
I-KVKG - ingxenye yesistimu yokuphefumula kwe-crankcase, emele ngokuhlelekile ulwelwesi noma i-plunger bypass valve.
Itholakala kuphi ivalvu yokungenisa umoya ye-crankcase?
Ezimweni eziningi, i-KVKG itholakala kukhava ye-valve yenjini evuthayo yangaphakathi (engemuva noma phezulu) noma eduze kwayo endaweni ehlukile kanye nesihlukanisi samafutha.
Iyini i-valve ye-PCV?
I-valve ye-PCV ilawula ukugeleza kwamagesi e-crankcase ku-multifold intake, iwaqondise phambi kwe-throttle valve. Ikuvumela ukuthi uthuthukise ukwakheka kwengxube ye-air-fuel ngaphansi kwezindlela ezahlukahlukene zokusebenza zenjini yomlilo yangaphakathi.
Ungahlola kanjani ukusebenza kwe-valve ye-PCV?
I-KVKG esebenzayo ayivuthelwanga ohlangothini lokuphuma, kodwa idlula umoya ohlangothini lokungena. Lapho i-inlet ye-valve ekhishiwe ivaliwe enjinini evuthayo yangaphakathi egijimayo nefudumalayo, kuzwakala ukuchofoza futhi kuzwakale ukuthi into evimbayo (umunwe) ikhangwa kanjani. Uma i-valve ingadluli noma yikuphi kwalokhu kuhlola, kungaphetha ngokuthi i-valve ye-VKG ayisebenzi.
Unganquma kanjani ukuwohloka kwe-valve ye-crankcase ventilation?
I-CVCG eminyene endaweni evulekile iholela ekuthuthukisweni okudlulele kwengxube yamafutha omoya kanye nokusebenza okungazinzile kwenjini evuthayo yangaphakathi (ama-revs and troit float) lapho ingenzi lutho ngemva kokufudumala. Uma i-valve ingavuli ngesikhathi noma umthamo wayo uyancipha, ingxube izoncika, futhi kuzoba nezinkinga ngokuqala kanye nokusheshisa amandla kuzowohloka.
