jakisoni wamafuta

Zamkatimu

Ma injini opangira magalimoto ndi imodzi mwazinthu zazikulu zamagetsi zamagetsi zamagetsi ndi dizilo. Pogwira ntchito, miphuno imadzaza, kutuluka, kulephera. Pemphani kuti mumve zambiri.

Nozzle ndi chiyani

ICE mafuta injectors

Jakisoni ndi gawo limodzi lamafuta amafuta a injini omwe amapereka mafuta kuzipangizo panthawi yapadera. Ma jakisoni wamafuta amagwiritsidwa ntchito mu dizilo, jakisoni ndi mono-jakisoni powertrains. Lero, pali mitundu ingapo yamabampu yomwe imasiyana mosiyana ndi inzake. 

Malo ndi mfundo zogwirira ntchito

jakisoni

Malinga ndi mtundu wamafuta, jakisoni akhoza kupezeka m'malo angapo, monga:

  • Jekeseni wapakati ndi mono-injector, kutanthauza kuti mafuta amagwiritsira ntchito jakisoni mmodzi yekha, wokwera pamagetsi ambiri, patatsala pang'ono kutulutsa valavu. Ndi kulumikizana kwapakati pakati pa carburetor ndi jakisoni wokwanira;
  • anagawira jakisoni - injector. Jekeseni imayikidwa muzambiri zophatikizira ndikusakanikirana ndi mpweya wolowa mu silinda. Zimadziwika kuti zimagwira ntchito mosasunthika, chifukwa chakuti mafuta amatsuka valavu yodyera, sizingowonongeka ndi ma kaboni;
  • jekeseni wachindunji - ma jakisoni amaikidwa mwachindunji pamutu wamphamvu. M'mbuyomu, makinawa anali kugwiritsidwa ntchito pazinjini za dizilo zokha, ndipo pofika zaka za m'ma 90 zapitazo, akatswiri opanga magalimoto adayamba kuyesa jekeseni wachindunji pa jakisoni, pogwiritsa ntchito pampu yamafuta yamagetsi (pampu yamafuta othamanga), zomwe zidapangitsa kuti mphamvu ndi magwiridwe antchito zitheke pokhudzana ndi jakisoni wogawidwa. Masiku ano, jakisoni mwachindunji imagwiritsidwa ntchito kwambiri, makamaka pa injini za turbocharged.

Cholinga ndi mitundu yamabampu

jekeseni mwachindunji

Jekeseni ndi gawo lomwe limalowetsa mafuta mchipinda choyaka moto. Kapangidwe kake, ndi valavu yamagetsi yomwe imayang'aniridwa ndi makina oyang'anira zamagetsi. Pa mapu a mafuta a ECU, mitengo imayikidwa, kutengera kuchuluka kwa injini, nthawi yotsegulira, nthawi yomwe singano ya injector imakhala yotseguka, ndipo kuchuluka kwa mafuta obayidwa kumatsimikizika. 

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Mawotchi amphuno

makina nozzle

Makina obayira makina amagwiritsidwa ntchito pokha pokha pa injini za dizilo, ndipo ndi nthawi yomwe injini zoyaka zamkati zamkati zimayambira. Kapangidwe ka kamphindi koteroko ndi kophweka, monganso momwe imagwirira ntchito: ikafika pakapanikizika kena kake, singano imatseguka.

"Mafuta a dizilo" amaperekedwa kuchokera mu thanki yamafuta kupita pampope wa jakisoni. Mu pampu yamafuta, kupanikizika kumapangika ndipo mafuta a dizilo amagawidwa pamzerewu, pambuyo pake gawo la "dizilo" lokakamizidwa limalowa mchipinda choyaka moto kudzera pamphuno, kukakamiza kwa singano ya buluyo kumachepa ndikutseka. 

Kamangidwe kameneka ndi kosavuta: thupi, lomwe mkati mwake mumakhala singano yokhala ndi kutsitsi, akasupe awiri.

Ma jakisoni wamagetsi

electromagnetic nozzle

Majakisoni otere akhala akugwiritsidwa ntchito mu injini za jakisoni kwa zaka zopitilira 30. Kutengera kusinthidwa kwa jekeseni wamafuta kumachitika mosavomerezeka kapena kugawidwa pamphamvu. Ntchito yomanga ndiyosavuta:

  • nyumba yolumikizira cholumikizira magetsi;
  • vavu malemeredwe kumulowetsa;
  • nangula wamagetsi wamagetsi;
  • potseka kasupe;
  • singano, ndi spray ndi nozzle;
  • kusindikiza mphete;
  • sefa sefa.

Mfundo yogwirira ntchito: ECU imatumiza mphamvu pamakina oyendetsa injini, ndikupanga gawo lamagetsi lomwe limagwira pa singano. Pakadali pano, mphamvu ya kasupe yafooka, zida zimachotsedwa, singano ikukwera, kumasula mphuno. Valavu yolamulira imatseguka ndipo mafuta amalowa mu injini panthawi inayake. ECU imakhazikitsa nthawi yotsegulira, nthawi yomwe valavu imakhala yotseguka, komanso nthawi yomwe singano imatseka. Izi zimabwereza kugwiranso ntchito kwa injini yoyaka mkati, zosachepera 200 zimachitika pamphindi.

Zamagetsi-hayidiroliki nozzles

electro-hydraulic nozzle

Kugwiritsa ntchito jakisoni wotere kumachitika mu injini za dizilo zokhala ndi makina apakompyuta (jekeseni pampu) ndi Common Rail. Pampu yamagetsi yamagetsi imakhala ndi zinthu zotsatirazi:

  • nozzle ndi singano yotseka;
  • kasupe ndi pisitoni;
  • chipinda cholamulira ndi kupopera chakudya;
  • kuda kutsamwa
  • chisangalalo kumulowetsa ndi cholumikizira;
  • kulowetsa mafuta;
  • kukhetsa njira (kubwerera).

Chiwembu cha ntchito: jekeseni wa jekeseni umayamba ndi valavu yotsekedwa. Pali pisitoni m'chipinda chowongolera, momwe mafuta amathandizira, pomwe singano yotseka "imakhala" mwamphamvu pampando. ECU imapereka magetsi kumunda kumulowetsa ndipo mafuta amaperekedwa kwa injector. 

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Phulusa lamagetsi lamagetsi

piezo injector

Amagwiritsidwa ntchito pamagulu a dizilo okha. Lero, kapangidwe kake kakupita patsogolo kwambiri, popeza kamwa ka piezo kamapereka dosing yolondola kwambiri, ngodya ya utsi, kuyankha mwachangu, komanso kupopera mbewu zingapo munthawi imodzi. Nozzle ili ndi magawo ofanana ndi zamagetsi zamagetsi, koma imangokhala ndi zinthu zotsatirazi:

  • piezoelectric amafotokozera;
  • ma pistoni awiri (valavu yosintha ndi kasupe ndi pusher);
  • valavu;
  • mbale fulumizitsa.

Mfundo yogwirira ntchito imachitika posintha kutalika kwa chinthu chopangira ma piezo pamene magetsi agwiritsidwa ntchito. Pamene kugunda kumagwiritsidwa ntchito, chinthu chopangira ma piezoelectric, posintha kutalika kwake, chimagwira pisitoni ya pusher, valavu yosintha imatsegulidwa ndipo mafuta amaperekedwa kukhetsa. Kuchuluka kwa mafuta ojambulidwa ndi dizilo kumatsimikiziridwa ndi kutalika kwa magetsi kuchokera ku ECU. 

Njira zotsukira ma jakisoni

kuyeretsa nozzles

Ma jakisoni wamafuta amakhala otseka panthawi yogwira ntchito. Ichi ndi chifukwa mafuta otsika, komanso m'malo mwadzidzidzi wa sefa ndi coarse mafuta fyuluta. Pambuyo pake, magwiridwe antchito a mphuno amachepetsa, ndipo izi zimadzaza ndi kuwonjezeka kwa kutentha m'chipinda choyaka moto, zomwe zikutanthauza kuti pisitoni ipsa posachedwa. 

Njira yosavuta yochotsera ma jekeseni a jekeseni wogawidwa, chifukwa ndikosavuta kuwatsuka kuti ayeretse kwambiri pamtondo, pomwe ndizotheka kugwirizanitsa matayala ndi kutsitsi. 

Kuyeretsa ndi mtundu wa Wynns kutsuka madzi pamtondo. Ma nozzles amaikidwa pachitetezo, madzi amatsanulira mu thanki, osachepera 0.5 malita, nozzle ya nozzle iliyonse imamizidwa m'mabotolo omwe amagawanika ml, zomwe zimakupatsani mwayi wowongolera magwiridwe antchito. Pafupifupi, kuyeretsa kumatenga mphindi 30-45, pambuyo pake mphete za O paming'oma zimasinthidwa ndikuziyika m'malo mwake. Kuchuluka kwa kuyeretsa kumatengera mtundu wa mafuta komanso kusintha kwa fyuluta yamafuta, pafupifupi makilomita 50. 

Kuyeretsa zamadzimadzi osachotsa. Makina amadzi amalumikizidwa ndi njanji yamafuta. Payipi yomwe madzi amadzimadzi azithandizire amalumikizidwa ndi njanji yamafuta. Kusakaniza kumaperekedwa pansi pa mpweya wa 3-6, injini imayendetsa pa iyo kwa mphindi 30. Njirayi ndiyofunikanso, koma palibe kuthekera kosinthira mawonekedwe opopera ndi zokolola. 

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Kukonza ndi zowonjezera mafuta. Njirayi nthawi zambiri imatsutsidwa chifukwa mphamvu yosakaniza zowonjezera zowonjezera ndi mafuta ndizokayikitsa. M'malo mwake, izi zimagwira ntchito ngati nozzles sizinatsekebe, ngati njira yodzitetezera - chida chabwino kwambiri. Pamodzi ndi ma bubu, mpope wamafuta amatsukidwa, tinthu tating'onoting'ono timakankhidwa kudzera pamafuta. 

Akupanga kuyeretsa. Njirayi imagwira ntchito pokhapokha kuchotsa ma jakisoni. Choyimira chapadera chimakhala ndi chida chopanga chomwe mphamvu yake idatsimikizika. Pambuyo pokonza, phula limachotsedwa, lomwe silimatsukidwa ndi madzi akuchapa. Chofunikira ndichakuti musaiwale kusintha sefa wa sefa yanu ngati ma nozzles anu ndi dizilo kapena jekeseni wachindunji. 

Kumbukirani kuti mutatsuka jakisoni, ndibwino kuti musinthe fyuluta yamafuta, komanso fyuluta yoyera yomwe imayikidwa pampu wamafuta. 

Mafunso ndi Mayankho:

Kodi majekeseni a injini ndi chiyani? Ndilo gawo la dongosolo lamafuta agalimoto lomwe limapereka ma metered amafuta kuzinthu zochulukirapo kapena mwachindunji kwa silinda.

Ndi mitundu yanji ya nozzles yomwe ilipo? Majekeseni, kutengera mtundu wa injini ndi makina apakompyuta, amatha kukhala makina, maginito, piezoelectric, hydraulic.

Kodi mphuno za galimoto zili kuti? Zimatengera mtundu wamafuta amafuta. M'magawo ogawa mafuta, amayikidwa muzolowera zambiri. Mu jekeseni mwachindunji, iwo anaika mu yamphamvu mutu.

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