Injector Yatsopano ya Mafuta a Dizilo 2645A747 Common Rail Injector 320-0680 Yogwirizana ndi Cat C6.6 C4.4 Engine 323D L Excavator

Cavitation M'kati mwa High-Pressure Optically Transparent Fuel Injector Nozzles(GAWO 2)

Milomo ya jekeseni ya Optically accessible (OA) yakhala ikugwiritsidwa ntchito m'mafukufuku angapo am'mbuyomu amayendedwe amkati a ma jekeseni a jekeseni ya nozzle opezeka mumainjini opondereza a jekeseni. Ambiri mwa maphunziro am'mbuyomuwa adachitidwa pazovuta za jekeseni zotsika kwambiri kuposa za jekeseni wokhudzana ndi mafakitale, chifukwa chazovuta kupanga jekeseni ya OA yomwe imatha kupirira kupanikizika kwambiri kwa jakisoni. Kuti alipire, ena adagwiritsa ntchito ma geometri owonjezera kuti agwirizane ndi nambala ya Reynolds.

Maphunziro omwe anayesa kukwaniritsa zovuta zenizeni za jakisoni adzafotokozedwa mwachidule apa, chifukwa izi ndizogwirizana kwambiri ndi mapangidwe omwe aperekedwa mu pepalali, ndipo pamapeto pake ndi olondola kwambiri pankhani yotulutsanso chidwi.

Arcoumanis et al. adawunika momwe makulitsira ma geometries akufananiza manambala a Reynolds ndi Cavitation mu kukula kwenikweni ndikukweza geometry[2]. Iwo anapeza kuti cavitation nyumba anali osiyana mu ma geometries awiri ofanana cavitation manambala. Mamba a geometry onse adawonetsa cavitation ya geometric kumbali yakumunsi ya m'mphepete mwa m'mphepete mwa mwamba (ndi jekeseni yolozera pansi), ndi chingwe cholumikizira chomwe chili mbali ina ya dzenje la orifice.

Kusiyana kwakukulu komwe kunawonedwa ndi olembawo kudachitika chifukwa cha kusiyana kwa nthawi yokhala ndi nthunzi mukuyenda chifukwa chautali wosiyanasiyana wa orifice. Injector yayikulu idapangidwa ndi galasi la acrylic, pomwe jekeseni yeniyeniyo idapangidwa ndi ndodo ya quartz yolumikizidwa ndi thupi la njanji ya njanji ya Bosch ndikuzunguliridwa ndi malo opangira ma acrylic. Chidutswa cha acrylic chinali chokulirapo kuposa jekeseni woyambirira wachitsulo. Reid ndi al. adagwiritsa ntchito safiro kupanga mtundu wosavuta wa geometry wopezeka mu majekeseni ophimba ma valve (VCO)[3]. Iwo adakwaniritsa zokakamiza za jekeseni za 2000 bar ndi kapangidwe kake. Zikuoneka kuti orifice anamangidwa ndi wosanjikiza mbale safiro mu njira axial ndi angapo thru mabowo amene anapanga omaliza geometry. Imeneyi inali njira yanzeru yopeputsa kachulukidwe ka ziwalozo.