Ma injector a mafuta - "Mizimu ya mafuta" ya Injini
Mu dongosolo lapamwamba la injini ya galimoto, chojambulira mafuta chimagwira ntchito yofunika kwambiri monga "mzimu wamafuta", kukhala chimodzi mwa zigawo zazikulu za injini zamagetsi zojambulira mafuta. Kwenikweni, ndi valavu yosavuta yamagetsi. Pamene chojambulira chamagetsi chikugwiritsidwa ntchito, mphamvu yokoka yomwe imapangidwa imakweza valavu ya singano, ndikutsegula nozzle, ndipo mafutawo amathiridwa mwachangu kudzera mumpata wa annular pakati pa mutu wa singano ndi nozzle, ndikupanga mkhalidwe wofanana ndi nthunzi, womwe umasakanikirana ndi mpweya kuti ukwaniritse bwino kwambiri kuyaka kwa injini.
Kulondola kwa injini yojambulira mafuta kumatsimikizira mwachindunji momwe injini imagwirira ntchito. Motsatira malangizo olondola a chipangizo chowongolera zamagetsi (ECU) cha injini, imathira mafuta mu silinda nthawi ndi nthawi komanso mu kuchuluka kokhazikika malinga ndi momwe injini imagwirira ntchito. Pali mitundu iwiri ya njira zojambulira mafuta: imodzi ndi intake manifold injection, pomwe intake injector imakhala mu intake manifold ndikuthira mafuta mu intake manifold kuti isakanizidwe ndi mpweya musanalowe mu silinda; ina ndi intake injection mwachindunji mu silinda, pomwe intake injector imalowa mwachindunji mkati mwa silinda ndikuthira mafuta ndi kuthamanga kwambiri mu silinda. Ngakhale njira ziwirizi zili ndi mfundo zofanana za kapangidwe kake, intake injection yamafuta mwachindunji imafunika kupirira kuthamanga kwambiri, nthawi zambiri kuyambira 24 mpaka 200 kg, pomwe kuthamanga kwa intake manifold injection nthawi zambiri kumakhala pakati pa 2 ndi 8 kg.
Kulowetsa mafuta molondola ndi chitsimikizo cha kugwira ntchito bwino kwa injini. Chojambulira mafuta chimayang'anira kuchuluka kwa mafuta ndi nthawi yake kuti chitsimikizire kuti injiniyo ipeza chiŵerengero choyenera cha mpweya ndi mafuta pansi pa mikhalidwe yosiyanasiyana yogwirira ntchito, motero imapangitsa kuti mphamvu zituluke bwino, mafuta azigwiritsidwa ntchito moyenera, komanso kutulutsa utsi wochuluka. Tinganene kuti momwe injiniyo imagwirira ntchito zimakhudza mwachindunji momwe injini imagwirira ntchito, kuchuluka kwa mafuta omwe amagwiritsidwa ntchito, komanso mtundu wa utsi wotuluka.
Kulephera kwa injini yopangira mafuta - "Chopha chosaoneka" cha injini
Pamene mtunda wa galimoto ukukwera komanso malo ogwiritsira ntchito akusintha, ma injector amafuta amathanso kukumana ndi zovuta zosiyanasiyana, zomwe zimakhala "zakupha zosaoneka" zomwe zimakhudza magwiridwe antchito a injini. Zomwe zimayambitsa kulephera kwa ma injector amafuta ndizovuta ndipo makamaka zimakhudzana ndi mtundu wa mafuta, momwe amagwiritsidwira ntchito, komanso kukalamba kwa zigawo. Mkamwa, zinyalala mu mafuta, ndi fumbi lomwe limabweretsedwa panthawi yosungira ndi kunyamula zidzasonkhana pakapita nthawi pamalo oinjector amafuta, ndikupanga malo osungira. Malo osungira awa, akatenthedwa, adzasanduka malo osungira kaboni wolimba, kutseka valavu ya singano ndi mabowo a valavu a injector yamafuta. Kuphatikiza apo, kuchulukana kwa magalimoto mumzinda nthawi zambiri kumapangitsa magalimoto kugwira ntchito pa liwiro lotsika komanso osagwira ntchito, zomwe zidzathandizanso kupanga ndi kusonkhanitsa malo osungira.
Kulephera kwa injini yojambulira mafuta kumayambitsa zizindikiro zingapo zoonekeratu, zomwe zimachenjeza kuti asamale. Chizindikiro choyamba ndi kuchepa kwa mphamvu ndi kuvutika kuthamanga. Injini yojambulira mafuta ikatsekedwa ndipo kuchuluka kwa injini yojambulira mafuta sikukwanira, injiniyo singapeze mafuta okwanira, ndipo mphamvuyo imachepa kwambiri, makamaka ikathamanga mofulumira, kuchedwa koonekera kudzachitika. Chizindikiro chachiwiri ndi kuchuluka kwa mafuta osagwiritsidwa ntchito bwino. Kuchepa kwa atomization ya mafuta kudzayambitsa kuyaka kosakwanira kwa mafuta, ndipo injiniyo idzawonjezera kuchuluka kwa injini yojambulira mafuta kuti isunge mphamvu, zomwe zimapangitsa kuti mafuta agwiritsidwe ntchito kwambiri.
Kusagwira ntchito bwino ndi kugwedezeka kosagwirizana ndi zizindikiro zodziwika bwino. Kutsekeka kwa chojambulira mafuta kapena atomization yoipa kungayambitse kugawa mafuta kosagwirizana mu silinda, kuonjezera kusinthasintha kwa ntchito ya silinda, ndipo ngakhale ECU itasintha, singathe kubweza kwathunthu, motero kumayambitsa kusinthasintha kwa liwiro losagwira ntchito komanso kugwedezeka kwa magalimoto. Kuphatikiza apo, kutulutsa mopitirira muyeso kwa utsi, kuvutika kuyaka kozizira, ndi magetsi olakwika a injini kuyatsanso zingakhale zizindikiro za kulephera kwa chojambulira mafuta. Kulephera kwakukulu kwa chojambulira mafuta kungayambitsenso kusowa kwa silinda ya injini, kuzimitsa injini mwadzidzidzi, ndi mavuto ena akuluakulu omwe amakhudza chitetezo choyendetsa.
Kuyankha ndi kupewa kulephera kwa injini yamafuta
Kukumana ndi kulephera kwa injini yopangira mafuta, mayankho achangu komanso ogwira mtima ndi ofunikira kwambiri. Zizindikiro zomwe zili pamwambapa zikachitika, mwiniwakeyo angagwiritse ntchito kaye njira yodziwira vuto (OBD) kuti awerenge ma code olakwika kuti adziwe chomwe chachititsa kulephera. Pazotseka zazing'ono za injini yopangira mafuta, zowonjezera mafuta zomwe zili ndi zigawo za PEA zingagwiritsidwe ntchito poyeretsa. Nthawi zambiri, kuzigwiritsa ntchito kawiri kapena katatu kumatha kusungunula ndikuchotsa mpweya woipa, ndikubwezeretsa injini yopangira mafuta kuti igwire ntchito bwino.
Ngati vuto ndi lalikulu, monga valavu ya singano yomwe yalowa mu injector yamafuta kapena coil yoyaka, ndikofunikira kupita ku shopu yokonza akatswiri kuti akakonze kapena kusintha nthawi yomweyo. Pakukonza, akatswiri aluso adzagwiritsa ntchito zida zaukadaulo kuyeretsa, kuyesa ndikusintha injector yamafuta kuti atsimikizire kuti ikugwiranso ntchito bwino.
Kupewa kulephera kwa injini yopangira mafuta ndikofunikira kwambiri pakukonza tsiku ndi tsiku. Ndikofunikira kuti eni magalimoto aziyang'anira ndi kuyeretsa injini yopangira mafuta kamodzi pa makilomita 2-3,000 aliwonse. Ngati galimotoyo ikugwiritsa ntchito mafuta abwino kwambiri ndipo ikusamalidwa bwino, nthawiyo ikhoza kukulitsidwa mpaka makilomita 4-6,000. Nthawi yomweyo, sankhani malo osungira mafuta odziwika bwino kuti muwonjezere mafuta abwino kwambiri kuti mupewe kugwiritsa ntchito mafuta otsika, omwe angachepetse kuwonongeka kwa injini yopangira mafuta chifukwa cha zinyalala ndi chingamu mu mafuta. Kuphatikiza apo, yesetsani kupewa kungokhala osachitapo kanthu kwa nthawi yayitali ndikuchepetsa kuyimitsa ndi kuyamba pafupipafupi m'mizinda, zomwe zingachepetsenso kupanga kwa mpweya woipa pa injini yopangira mafuta.
Mwachidule, chojambulira mafuta ndi gawo lofunika kwambiri la injini, ndipo ntchito yake singasinthidwe. Kumvetsetsa mfundo yogwirira ntchito ndi zizindikiro zolakwika za chojambulira mafuta, komanso kudziwa njira zoyenera zoyankhira ndi kupewa, kungathandize eni magalimoto kuzindikira ndi kuthetsa mavuto pakapita nthawi, kuonetsetsa kuti injiniyo ikugwira ntchito bwino komanso kupereka chitetezo chodalirika pakugwira ntchito bwino kwa galimoto komanso chitetezo choyendetsa.
Ngati mukufuna kudziwa zambiri, pitirizani kuwerenga nkhani zina patsamba lino!
Chonde tiimbireni foni ngati mukufuna zinthu zotere.
Malingaliro a kampani Zhuo Meng Shanghai Auto Co., Ltd. yadzipereka kugulitsa MG&MAXUSzida zamagalimoto zalandiridwa kugula.
