ukwehluleka kwesilawuli se-fuel pressure

ukwehluleka kwesilawuli se-fuel pressure kuholela eqinisweni lokuthi injini yomlilo yangaphakathi iqala ngobunzima, inejubane elingenalutho "elintantayo", imoto ilahlekelwa izici zayo eziguqukayo, ngezinye izikhathi ukuvuza kukaphethiloli ku-hoses yamafutha. ngokuvamile, isilawuli somfutho kaphethiloli (i-RTD efushanisiwe) sifakwa kumzila kaphethiloli futhi siyivacuum valve. Kwezinye izinhlobo zezimoto, i-RTD inqamula kulayini wokubuyisela uphethiloli wesistimu kaphethiloli. ukuze unqume ukuthi ukuwohloka kwesistimu kaphethiloli kuyisilawuli sokucindezela okungalungile, udinga ukwenza uchungechunge lokuhlola okulula.

Iphi i-fuel pressure regulator

ukuze sithole indawo yokufaka isilawuli sokucindezela uphethiloli, ake sithole ukuthi iyini futhi iqondene nani. Lokhu kuzosiza ekusesheni okwengeziwe nasekuxilongweni.

Into yokuqala okudingeka ukwazi ukuthi kunezinhlobo ezimbili eziyisisekelo zama-RTD - mechanical (imodeli endala) kanye nogesi (imodeli entsha). Esimweni sokuqala, lena i-vacuum valve, umsebenzi wayo ukudlulisa uphethiloli oweqile ngokucindezela ngokweqile emuva ethangini likaphethiloli ngokusebenzisa ipayipi elifanele. Kweyesibili, inzwa yokucindezela uphethiloli edlulisela ulwazi olufanele kukhompyutha.

Ngokuvamile i-fuel pressure regulator itholakala ku-fuel rail. Enye indlela yokuyinweba ipayipi lokubuyisela uphethiloli lesistimu yokuphakelwa kwamandla. kukhona futhi inketho - indawo yomlawuli isethangini likaphethiloli kumodule yepompo. Kulezi zinhlelo, alikho ipayipi lokubuyisela uphethiloli elingadingekile. Ukuqaliswa okunjalo kunezinzuzo eziningana, kuhlanganise nokwenza lula umklamo (ayikho ipayipi eyengeziwe), uphethiloli oweqile awungeni ekamelweni lenjini, uphethiloli ushisa kancane futhi awuhwamuki kakhulu.

Sisebenza kanjani isilawuli sengcindezi yamafutha

Ngokwesakhiwo, i-valve yesitayela esidala (efakwe ezimotweni zikaphethiloli) inomzimba wayo, ngaphakathi lapho kukhona i-valve, ulwelwesi kanye nesiphethu. Kunezindawo ezintathu zokudayisa uphethiloli kule ndlu. Ngezimbili zazo, uphethiloli udlula kwisilawuli sokucindezela, futhi okukhiphayo kwesithathu kuxhunywe kubuningi bokudla. Ngesivinini esiphansi (kuhlanganisa nokungenzi lutho) kwenjini, umfutho kaphethiloli ohlelweni uphansi futhi wonke ungena enjinini. Ngokukhuphuka kwejubane, ingcindezi ehambisanayo iyanda ku-manifold, okungukuthi, i-vacuum (i-vacuum) yenziwa ekuphumeni kwesithathu kwe-RTD, okuthi, ngenani elithile, inqobe amandla okumelana entwasahlobo yawo. lokhu kudala ukunyakaza kwe-membrane nokuvulwa kwe-valve. Ngokunjalo, uphethiloli oweqile uthola ukufinyelela endaweni yesibili yesilawuli bese ubuyela ethangini likaphethiloli ngepayipi lokubuya. Ngenxa ye-algorithm echazwe, isilawuli sokucindezela uphethiloli sivame ukubizwa ngokuthi i-valve yokuhlola.

Ngokuqondene nenzwa yokucindezela uphethiloli, iyinkimbinkimbi kancane. Ngakho, siqukethe izingxenye ezimbili - mechanical kanye kagesi. Ingxenye yokuqala iwulwelwesi lwensimbi oluguquguqukayo ngaphansi kwamandla okubangelwa ukucindezela ohlelweni lukaphethiloli. Ubukhulu be-membrane buncike ekucindezelweni okuklanyelwe uphethiloli. Ingxenye kagesi yenzwa iqukethe amageji ezinhlobo ezine axhunywe ngokohlelo lwebhuloho likaWinston. I-voltage isetshenziswa kubo, futhi lapho i-membrane igoba, i-voltage ephumayo evela kubo izoba nkulu. Futhi lesi siginali sithunyelwa ku-ECU. Futhi ngenxa yalokho, iyunithi yokulawula ye-elekthronikhi ithumela umyalo ofanele epompo ukuze inikeze kuphela inani likaphethiloli elidingekayo ngaleso sikhathi.

Izinjini zikadizili zinedizayini yesilawuli se-fuel pressure ehluke kancane. okungukuthi, aqukethe i-solenoid (ikhoyili) kanye nesiqu esincikene nebhola ukuvimba okuphakelayo okubuyayo. Lokhu kwenziwa ngenxa yokuthi injini ye-dizili evuthayo yangaphakathi idlidliza kakhulu ngesikhathi sokusebenza kwayo, okuthinta ukugqokwa kwe-classic (uphethiloli) wokulawula uphethiloli, okungukuthi, kukhona isinxephezelo esiyingxenye futhi esiphelele sokudlidliza kwe-hydraulic. Nokho, indawo yayo yokufaka iyafana - kumzila kaphethiloli wenjini yomlilo yangaphakathi. Enye inketho isendaweni yepompo ye-fuel.

Izimpawu zesilawuli sokucindezela uphethiloli ephukile

Kunezimpawu ezinhlanu eziyisisekelo zokwehluleka kwesilawuli sokucindezela uphethiloli (zombili izinhlobo) ezingasetshenziswa ukwahlulela ukwehluleka okuphelele noma okuyingxenye kwale yunithi ebalulekile. Ngaphezu kwalokho, lezi zimpawu ezilandelayo zijwayelekile ezimotweni ezinazo zombili izinjini ezivuthayo zikaphethiloli nezidizili. Kodwa-ke, kufanelekile ukusho ukuthi izimo ezisohlwini zingase zibe izibonakaliso zokuwohloka kwezinye izingxenye zenjini (ipompo likaphethiloli, isihlungi sikaphethiloli esivalekile), ngakho-ke kuhle ukwenza ukuxilongwa okuphelele ukuze kunqunywe ngokunembile ukusebenza kwayo. Ngakho-ke, izimpawu zokuwohloka kwesilawuli sokucindezela uphethiloli zimi kanje:

• Kunzima ukuqala injini. Lokhu kuvame ukuvezwa ngokunyakaza okude yi-starter nge-accelerator pedal ecindezelekile. Ngaphezu kwalokho, lesi sibonakaliso siyisici ngaphansi kwanoma yiziphi izimo zezulu zangaphandle.
• Izitebele zenjini zingenzi lutho. Ukuze ulondoloze ukusebenza kwayo, umshayeli kufanele ahlale ephefumula. Enye inketho lapho injini evuthayo yangaphakathi ingasebenzi, ama-revolution ngokuvamile "ayantanta", angazinzi, aze afike esitobhini esiphelele senjini.
• Ukuphelelwa amandla namandla. Kalula nje, imoto "ayidonsi", ikakhulukazi lapho ishayela ikhuphuka futhi / noma isesimweni esilayishiwe. izici ezishukumisayo zemoto nazo zilahlekile, isheshisa kabi, okungukuthi, lapho uzama ukusheshisa, kukhona ukwehla okujulile kokuguqulwa kwamanani abo aphezulu.
• Amafutha ayavuza ezintanjeni zamafutha. Ngesikhathi esifanayo, ukushintsha ama-hoses (ama-clamps) nezinye izakhi eziseduze akusizi.
• Ukugcwala kwamafutha. Inani layo lizoncika kokubili ezintweni zokuwohloka kanye namandla enjini evuthayo yangaphakathi.

Ngakho-ke, uma kubonakala okungenani eyodwa yalezi zimpawu ezingenhla, ukuxilongwa okwengeziwe kufanele kwenziwe, okuhlanganisa ukusebenzisa isithwebuli sephutha se-elekthronikhi esitholakala kumemori yekhompyutha.

Iphutha lesilawuli somfutho wamafutha

Amaphutha Okuhlola I-Fuel Pressure Regulator

Ezimotweni zanamuhla, inzwa yokucindezela uphethiloli ifakwe njengomlawuli. Ngokuhluleka kwayo okuyingxenye noma okuphelele, iphutha elilodwa noma amaningi ahlobene nale nodi akhiwa kunkumbulo yeyunithi yokulawula ye-elekthronikhi ICE. Ngesikhathi esifanayo, ukukhanya kwangaphakathi kwenjini evuthayo kuyasebenza kudeshibhodi.

Uma kukhona ukuphazamiseka kwe-DRT, ngokuvamile umshayeli uhlangabezana namaphutha ngaphansi kwezinombolo p2293 kanye ne-p0089. Eyokuqala ibizwa ngokuthi "isilawuli sengcindezi yamafutha - ukwehluleka komshini." Okwesibili - "i-fuel pressure regulator inephutha." Kwabanye abanikazi bezimoto, lapho isilawuli esihambisanayo sihluleka, amaphutha akhiqizwa kwinkumbulo yekhompiyutha: p0087 “ingcindezi elinganiswe kumzila kaphethiloli iphansi kakhulu maqondana nalowo odingekayo” noma i-p0191 “isilawuli sengcindezi yamafutha noma inzwa yokucindezela”. Izimpawu zangaphandle zalawa maphutha zifana nezimpawu ezijwayelekile zokuhluleka kwesilawuli sokucindezela uphethiloli.

Ukuze uthole ukuthi ingabe kukhona ikhodi yephutha enjalo kumemori yekhompyutha, i-autoscanner engabizi izosiza Skena Ithuluzi Pro Black Edition. Lo mshini uhambisana neningi lazo zonke izimoto zesimanje ezinesixhumi se-OBD-2. Kwanele ukuba ne-smartphone enesicelo sokuxilonga esifakiwe.

Ungakwazi ukuxhuma kuyunithi yokulawula imoto kokubili nge-Bluetooth ne-Wi-Fi. Skena Ithuluzi Pro Ukuba ne-chip engu-32-bit futhi ixhuma ngaphandle kwezinkinga, ifunda futhi igcine yonke idatha yezinzwa hhayi kuphela enjini yangaphakathi evuthayo, kodwa futhi ku-gearbox, ukudlulisa, noma izinhlelo ezisizayo ze-ABS, ESP, njll. ingasetshenziswa futhi ukuqapha ukufundwa komfutho kaphethiloli ngesikhathi sangempela, ewudlulisela ku-ECM yemoto ngenkathi kuhlolwa uchungechunge.

Ihlola isilawuli somfutho kaphethiloli

Ukuhlola ukusebenza kwesilawuli sokucindezela uphethiloli kuzoncika ekutheni siwumshini noma sisebenza ngogesi. umlawuli omdala uphethiloli ICE kulula ngokwanele ukuhlola. Udinga ukwenza ngokuvumelana ne-algorithm elandelayo:

• thola ipayipi lokubuyisela uphethiloli endaweni yenjini;
• qala injini yomlilo yangaphakathi futhi uyivumele isebenze cishe umzuzu owodwa, ukuze ingasabanda, kodwa futhi ingashisi ngokwanele;
• usebenzisa ama-pliers (ngokucophelela ukuze ungalimazi !!!) cindezela i-hose yokubuyisela uphethiloli ekhonjiswe ngenhla;
• uma kwenzeka injini yomlilo yangaphakathi "iqhuma" ngaphambi kwalokhu futhi yasebenza kabi, futhi ngemva kokucindezela i-hose yasebenza kahle, kusho ukuthi kwakungumlawuli wokucindezela uphethiloli ohlulekile.

Ungawafaki amapayipi e-rubber fuel isikhathi eside, ngoba ezimweni ezinjalo kwakhiwa umthwalo owengeziwe empompini kaphethiloli, engalimaza isikhathi eside!

Unganquma kanjani ukusebenza komjovo

Kuma-ICEs esimanje kaphethiloli womjovo, okokuqala, amashubhu ensimbi afakwa esikhundleni samapayipi kaphethiloli enjoloba (ngenxa yokucindezela kukaphethiloli okuphezulu nokuthembeka nokuqina), futhi okwesibili, izinzwa zikagesi ezisekelwe kuma-gauge obunzima ziyafakwa.

Ngokunjalo, ukuhlola inzwa yomfutho kaphethiloli kwehla ekuhloleni amandla kagesi aphuma kunzwa lapho umfutho kaphethiloli ohlinzekiwe ushintsha, ngamanye amazwi, ukwanda/kwehliswa kwejubane lenjini. Okuzokwenza kucace ukuthi i-fuel pressure regulator ayisebenzi noma cha.

Enye indlela yokuhlola i-manometer. Ngakho-ke, i-gauge ye-pressure gauge ixhunywe phakathi kwepayipi likaphethiloli kanye nokulinganisa. Ngaphambi kokwenza lokhu, qiniseka ukuthi unqamula ipayipi le-vacuum. futhi okokuqala udinga ukuthola ukuthi iyiphi ingcindezi evamile kaphethiloli okufanele ibe enjinini yomlilo yangaphakathi (izohluka nge-carburetor, umjovo nezinjini zikadizili). Ngokuvamile, kuma-ICE omjovo, inani elihambisanayo lisebangeni elicishe libe ngu-2,5 ... 3,0 womkhathi.

Kuyadingeka ukuqala injini yomlilo yangaphakathi futhi uqiniseke, ngokusho kokufundwa kwegeji yokucindezela, ukuthi ingcindezi ilungile. Okulandelayo, udinga ukugoqa kancane. Ngesikhathi esifanayo, ukucindezela kwehla kancane (ngokweshumi komkhathi). Khona-ke ukucindezela kuyabuyiselwa. khona-ke udinga ukusebenzisa ama-pliers afanayo ukuze uncinde i-hose yamafutha okubuyisela, ngenxa yalokho ukucindezela kuzokwenyuka cishe ku-2,5 ... 3,5 emkhathini. Uma lokhu kungenzeki, isilawuli sisuke singasebenzi. Khumbula ukuthi amapayipi akufanele ancishwe isikhathi eside!

Indlela yokuhlola udizili

Ukuhlola i-fuel pressure regulator kumasistimu edizili esimanjemanje i-Common Rail kulinganiselwe kuphela ukukala ukumelana nogesi ngaphakathi kwekhoyili ye-sensor control inductive. Ezimweni eziningi, inani elihambisanayo lisendaweni engu-8 ohms (inani eliqondile kufanele licaciswe emithonjeni eyengeziwe - imanyuwali). Uma inani lokumelana ngokusobala liphansi kakhulu noma liphezulu kakhulu, khona-ke umlawuli ungaphandle kokuhleleka. Ukuxilongwa okuningiliziwe kungenzeka kuphela ezimweni zesevisi yemoto ezindaweni ezikhethekile, lapho kungahlolisiswa izinzwa kuphela, kodwa lonke uhlelo lokulawula uphethiloli olujwayelekile.

Izimbangela zokwehluleka kwesilawuli sikaphethiloli

Eqinisweni, azikho izizathu eziningi zokuthi kungani isilawuli sokucindezela uphethiloli sehlulekile. Masizibhale ngokulandelana:

• Ukuguga okujwayelekile. Lesi yimbangela evame kakhulu yokwehluleka kwe-RTD. ngokuvamile, lokhu kwenzeka lapho imoto ugijima mayelana 100 ... 200 amakhilomitha ayizinkulungwane. Ukuwohloka komshini wesilawuli sokucindezela uphethiloli kuvezwa eqinisweni lokuthi i-membrane ilahlekelwa ukunwebeka kwayo, i-valve ingase igwetshwe, futhi intwasahlobo iba buthaka ngokuhamba kwesikhathi.
• Izingxenye ezinesici. Lokhu akwenzeki kaningi, kodwa ngokuvamile umshado utholakala ngezikhathi ezithile emikhiqizweni yabakhiqizi basekhaya. Ngakho-ke, kuhle ukuthenga izingxenye ezisele zangempela ezivela kubakhiqizi abangenisiwe noma uzihlole ngaphambi kokuthenga (qiniseka ukuthi unaka iwaranti).
• Uphethiloli wekhwalithi ephansi. Kuphethiloli yasekhaya kanye ne-diesel, ngeshwa, ukutholakala ngokweqile komswakama, kanye nemfucumfucu kanye nezakhi zamakhemikhali eziyingozi, kuvame ukuvunyelwa. Ngenxa yomswakama, amaphakethe okugqwala angase avele ezicini zensimbi zomlawuli, ezisakazeka ngokuhamba kwesikhathi futhi ziphazamise ukusebenza kwayo okujwayelekile, isibonelo, intwasahlobo iyancipha.
• Isihlungi sikaphethiloli esivalekile. Uma kunenqwaba yemfucumfucu ohlelweni lukaphethiloli, kuzoholela ekuvaleni, kuhlanganise ne-RTD. Imvamisa, ezimweni ezinjalo, i-valve iqala ukugoba, noma intwasahlobo iyaguga.

ngokuvamile, uma isilawuli sokucindezela uphethiloli sinephutha, ngakho-ke asilungiswa, kodwa sithathelwa indawo entsha. Nokho, ngaphambi kokuyilahla, kwezinye izimo (ikakhulukazi uma kunjalo), ungazama ukuhlanza i-RTD.

Ukuhlanza isilawuli sikaphethiloli

Ngaphambi kokufaka esikhundleni sento entsha efanayo, ungazama ukuyihlanza, ngoba le nqubo ilula futhi ifinyeleleka cishe kubo bonke abanikazi bezimoto ezimweni zegaraji. Ngokuvamile, izihlanzi ezikhethekile ze-carburetor noma izicoci ze-carb zisetshenziselwa lokhu (abanye abashayeli basebenzisa ithuluzi elaziwayo le-WD-40 ngezinhloso ezifanayo).

Okuvame kakhulu (futhi okufinyeleleka kakhulu) ukuhlanza i-mesh yokuhlunga, etholakala ekufakweni kwe-outlet yesilawuli sokucindezela uphethiloli. Ngawo, uphethiloli unikezwa ngokuqondile kumzila wesitimela. Ngokuhamba kwesikhathi, iyavaleka (ikakhulukazi uma uphethiloli osezingeni eliphansi nokungcola kwemishini, imfucumfucu ihlale ithululelwa ethangini lemoto), okuholela ekwehleni kokuphuma kokusebenza kwabo bobabili umlawuli kanye nesistimu yonke kaphethiloli iyonke.

Ngakho-ke, ukuze uyihlanze, udinga ukudiliza isilawuli sokucindezela uphethiloli, usihlukanise, futhi usebenzise isicoci ukuqeda amadiphozithi kugridi nangaphakathi kwezindlu zomlawuli (uma kungenzeka).

ukuze ugweme ukuvinjelwa kwesilawuli sokucindezela uphethiloli, udinga ukushintsha isihlungi sikaphethiloli semoto ngokuhambisana nemithethonqubo.

Isikrini sesilawuli sikaphethiloli esingcolile

Ngemuva kokuhlanza i-mesh ne-regulator body, kungakuhle ukuthi usule ngenkani nge-compressor yomoya ngaphambi kokufakwa. Uma ingekho i-compressor, yibeke endaweni efudumele enomoya omuhle isikhathi esanele ukuhwamulisa umswakama ovela ngaphandle nangaphakathi.

futhi enye inketho yokuhlanza engavamile ukusetshenziswa kokufakwa kwe-ultrasonic enkonzweni yemoto. okungukuthi, asetshenziselwa ukuhlanza izinga eliphezulu lama-nozzles. I-Ultrasound ingakwazi "ukugeza" okuncane, okugxilile, ukungcola. Kodwa-ke, lapha kufanelekile ukukala izindleko zenqubo yokuhlanza kanye nentengo ye-mesh entsha noma isilawuli sokucindezela uphethiloli sisonke.