Ungahlola kanjani i-valve yokuhlanza nge-multimeter

Ivalvu yokuhlanza iyingxenye yohlelo lwemoto lwe-Evaporative Emissions Control (EVAP). Lo mshini usiza ukuvikela umhwamuko kaphethiloli okhiqizwe injini ukuthi ungaphunyuki endaweni ezungezile noma ubuyele emotweni. Uwagcina okwesikhashana emgqonyeni wamalahle. I-valve iphinde isize ekulawuleni inani lomhwamuko kaphethiloli ogcina upheshulwa egabheni lamalahle.

Ezimotweni zesimanje, isistimu iyi-solenoid elawulwa nge-elekthronikhi exhunywe emandleni enjini. I-valve yokuhlanza ivula kancane kancane lapho ukuthungela kuvuliwe, kodwa isistimu ye-EVAP nayo ayisebenzi uma injini icishiwe.

Kunezikhathi lapho uhlelo luhluleka, okulimaza impilo yemoto yakho! Lokhu kuyasiza uma wazi ukuthi ungayihlola kanjani i-valve yokuhlanza nge-multimeter. Ngaphandle kwalokhu, sizophinde sixoxe ngamaphuzu alandelayo: 

• Imiphumela yokwehluleka kwe-adsorber purge valve
• Ingabe kufanele ichofoze i-valve yokuhlanza?
• Ingabe i-valve yokuhlanza embi ingabanga umlilo ongalungile

Izindlela zokuhlola i-valve yokuhlanza nge-multimeter

I-multimeter eqanjwe ngokufanelekile iyithuluzi eliwusizo elingakala i-voltage, ukumelana, namandla kagesi.

Ukuze uhlole i-valve yokuhlanza, hlola ukumelana phakathi kwamatheminali.

Inqubo ingase yehluke kuye ngemodeli yemoto, kodwa izinyathelo eziyisisekelo zihlala zifana.

Uhlu olungezansi yizinyathelo ezijwayelekile ezingasetshenziswa ukuhlola i-valve yokuhlanza eyingxenye yohlelo lwe-EVAP: 

1. Ukuthola indawoInto yokuqala okufanele uyenze ukuvala injini okungenani imizuzu engu-15-30. Ngemuva kwalokho, zama ukuthola ama-valve okuhlanza imoto. Ngokufanelekile, ingatholakala ngemuva kwe-muffler noma i-muffler futhi ibekwe phezulu. Lesi isihlungi sekhabhoni se-EVAP esinevalvu yokuhlanza ngaphakathi. Ukuze uthole ulwazi olwengeziwe ngendawo yesistimu, zama ukusesha imanuwali yomnikazi wemoto noma ufune imodeli ku-inthanethi enesithombe senjini.
2. Ukulungiswa kwekhebulaUma usuthole i-valve yokuhlanza, uzobona ukuthi ihhanisi lamaphini angu-2 lixhunywe kudivayisi. Isinyathelo esilandelayo ukunqamula futhi uphinde uwaxhume usebenzisa izintambo ze-adaptha ye-multimeter avamise ukufakwa kukhithi yokuhlola. Zingabuye zithengwe ngokwehlukana. Amatheminali e-valve yokuhlanza kufanele axhunywe kuzintambo ze-multimeter.
3. Ukuhlola Isinyathelo sokugcina ukukala ukumelana. Amazinga afanelekile kufanele abe phakathi kuka-22.0 ohms no-30.0 ohms; noma yini ephakeme noma ephansi izosho ukuthi i-valve idinga ukushintshwa. Lokhu kungenziwa esizeni uma une-spare; uma kungenjalo, uma ufuna ukuyisa esitolo, qiniseka ukuthi uphinde uxhume amahhanisi ezintambo njengangaphambili.

Ngazi kanjani uma iveluvu yami yokuhlanza inephutha?

Ziningi izimpawu zesistimu ye-EVAP engasebenzi kahle. Naka:

Isibani senjini Injini ilawula i-solenoid yokuhlanza futhi uma kukhona okungahambi kahle, ukukhanya kwenjini kuzokhanya. Uma izinga eliphezulu noma eliphansi lomhwamuko wokuhlanza litholwa, amakhodi amaphutha ayaboniswa, okuhlanganisa i-P0446 noma i-P0441. Sincoma ukuthi uhambise imoto esitolo sokukhanda uma ubona izimpawu ezingenhla.

Izinkinga zenjini Uma i-valve yokuhlanza ingavalwanga, isilinganiso sephethiloli yomoya singase sithikamezeke kabi ngenxa yomusi obalekela imvelo. Injini izosabela kushintsho, okuholela ekuqaliseni okunzima noma ukungenzi kahle.

Ukusetshenziswa kancane kukaphethiloli Uma isistimu ye-EVAP ingasebenzi kahle, inciphisa ngokungenakugwenywa ibanga legesi. Esikhundleni sokunqwabelana ku-valve yokuhlanza, umhwamuko kaphethiloli uzoqala ukungena endaweni ezungezile, ubangele ukwanda kokushiswa kukaphethiloli.

Ukusebenza kabi ekuhlolweni kwangaphandle I-EVAP canister inomthwalo wemfanelo wokuqondisa kabusha umhwamuko kaphethiloli ubuyele enjinini. Lokhu kusiza ukuvimbela ukukhishwa kwentuthu enobuthi endaweni ezungezile. Uma kwenzeka i-solenoid engalungile, ngeke ikwazi ukulawula intuthu futhi ihluleke ukuhlolwa kokukhishwa.

Amaphedi acekeleke phansi Njengoba ama-vapor angeke akwazi ukudlula uma i-valve ihluleka, ukucindezela kuzoqala ukwakha. Ngokuhamba kwesikhathi, izoba namandla kangangokuthi ingaqhumisa ama-rubber seal nama-gaskets. Umphumela uzoba ukuvuza kukawoyela, okungangena enjinini enkulu kusuka ohlelweni lokukhipha umoya, kubangele umonakalo omkhulu. Isizathu esivame kakhulu sokuthi i-valve ye-blowdown isebenze kahle ukuthi izingcezu zekhabhoni noma izinto zangaphandle zibambekile, okushiya indlela ivaliwe noma ivuliwe. Idinga ukushintshwa noma ukuhlanzwa.

Ingabe kufanele ichofoze i-valve yokuhlanza?

Impendulo emfushane yombuzo ithi yebo! I-valve yokuhlanza ngokuvamile yenza umsindo wokuchofoza noma wokumaka. Kodwa-ke, emotweni enamafasitela avaliwe, akufanele kubonakale. Uma inomsindo omkhulu futhi izwakala ngaphakathi emotweni, ingaba yimbangela yokukhathazeka. I-solenoid idinga ukuhlolwa.

Okunye okungenzeka ukuthi i-valve yokuhlanza yaqala ukuvumela umhwamuko ungene enjinini lapho ufaka uphethiloli. Lokhu kuzoholela ekuqaliseni okunzima kanye nezinkinga njengoba kushiwo ngenhla.

Ingabe i-valve yokuhlanza embi ingabangela ukudubula okungalungile?

 I-valve yokuhlanza engalungile ingaholela ekushayweni komlilo uma isimo sishiywa singanakiwe isikhashana. Njengoba intuthu iqala ukugcwala ngokweqile ohlelweni lwe-EVAP noma kusihlungi samalahle, i-valve ngeke ikwazi ukuvuleka ngesikhathi.

Uma inqubo iqhubeka ngokuhamba kwesikhathi, intuthu izongena ingene kumasilinda enjini, okuholela ekushisweni kwamanani angavamile kaphethiloli nentuthu. Le nhlanganisela izodala ukuthi injini ime bese ingasha. (1)

Isinqumo sokugcina

I-valve ye-solenoid iyingxenye ebalulekile yemoto. Uma ubona izinkinga ezibalwe ngenhla, imoto kufanele ilungiswe ngokushesha. Uma ufuna ukuhlola i-canister ngokwakho, ungalandela izinyathelo nge-multimeter futhi idivayisi izokutshela uma une-valve embi! (2)

Njengoba sikubonise ukuthi ungayihlola kanjani i-valve yokuhlanza nge-multimeter, ungabheka futhi. Ungase ufune ukuhlola inkomba engcono kakhulu yokukhetha i-multimeter bese unquma ukuthi iyiphi ehambisana nezidingo zakho zokuhlola.

Sithemba ukuthi lesi sihloko sokufundisa sizokusiza. Ngikufisela inhlanhla!

Izincomo

(1) Isistimu ye-EVAP - https://www.youtube.com/watch?v=g4lHxSAyf7M (2) i-solenoid valve - https://www.sciencedirect.com/topics/earth-and-planetary-sciences/solenoid-valve