I-Diesel Fuel Injector 2645A747 Common Rail Injector 320-0680 Ihambisana ne-Cat C6.6 C4.4 Engine 323D L Excavator

I-Cavitation Ngaphakathi Kwemibhobho Yomjovo Wamafutha Okucindezela Okuphezulu Okubonakalayo(INGXENYE 2)

Imibhobho yomjovo efinyeleleka ngokubona (OA) isetshenziswe ezifundweni ezimbalwa ezedlule zokugeleza kwangaphakathi kwamajiyometri wombhobho womjovo atholakala ezinjinini zokucindezelwa ngomjovo oqondile. Eziningi zalezi zifundo ezedlule zenziwe ngengcindezi yomjovo ephansi kakhulu kunaleyo yomjovo wezimboni ohlobene, ngenxa yenselele yokuklama umjovo we-OA ongamelana nokucindezela okuphezulu komjovo. Ukuze kunxeshezelwe, abanye basebenzise amajiyometri enziwe ngezikali ukuze afane nenombolo kaReynolds.

Izifundo ezizame ukufinyelela ukucindezela okungokoqobo komjovo zizofingqwa lapha, njengoba lezi zifaneleka kakhulu kumklamo owethulwe kuleli phepha, futhi ekugcineni yizona ezinembe kakhulu uma kuziwa ekukhiqizeni kabusha ukugeleza kwentshisekelo.

U-Arcoumanis et al. ihlole umthelela wokukala amajiyometri ngenkathi ihambisana nezinombolo zikaReynolds kanye neCavitation kusayizi wangempela kanye nejiyomethri ekhulisiwe[2]. Bathole ukuthi izakhiwo ze-cavitation zazihlukile kumajiyometri amabili ezinombolweni ezifanayo ze-cavitation. Zombili izikali zejiyomethri zibonise i-geometric cavitation ohlangothini olungezansi lomfula we-orifice onqenqemeni olungaphezulu (nge-injector ebheke phansi), kanye ne-string cavitation ekhona ngakolunye uhlangothi lwembobo ye-orifice.

Umehluko omkhulu obonwe ababhali ubangelwe umehluko wesikhathi sokuhlala kwebhamuza ekugelezeni ngenxa yobude obuhlukene be-orifice. Umjovo wesilinganiso esikhulu wenziwe ngengilazi ye-acrylic, kuyilapho umjovo wesikali wangempela wenziwe ngenduku ye-quartz exhunywe kumzimba womjovo we-Bosch common-rail futhi uzungezwe igalari yokusekela ye-acrylic. Ucezu lwe-acrylic lwalulukhulu kakhulu kunobhobho wensimbi wokuqala womjovo. Reid et al. isebenzise isafire ukuze idale inguqulo eyenziwe lula yejiyomethri etholakala kuma-injection e-valve-covered-orifice (VCO)[3]. Bathole ingcindezi yomjovo webha engu-2000 ngomklamo. Kubonakala sengathi i-orifice yakhiwa ngokubeka amapuleti esafire ohlangothini lwe-axial ngochungechunge lwezimbobo ze-thru ezakha i-geometry yokugcina. Lena kwakuyindlela ehlakaniphile yokwenza kube lula ukucutshungulwa kwezingxenye.