Fuel Injector 127-8222 127-8216 127-8205 0r-8682 0r-8461 kwa Caterpillar 3116 3114 Engine

Cavitation M'kati mwa High-Pressure Optically Transparent Fuel Injector Nozzles(GAWO 3)

Momwe chipangizocho chinasindikizidwa, ndi momwe mbalezo zinagwiritsidwira ntchito, sizinaphatikizidwe muzotsatira zofalitsidwa.Mitundu iwiri ya cavitation ya zingwe idawonedwa: imodzi yomwe idapanga ma vortices olumikizidwa ku gawo la geometry yopangidwa kuti ifanane ndi singano, ndi ina yomwe idapanga mu vortex yomwe imalumikiza mabowo awiri orifice.

Badock et al.adapeza zovuta za jekeseni pogwiritsa ntchito ma acrylic nozzles, ngakhale ngati Arcoumanis et al, chidutswacho chinali chachikulu kwambiri kuposa jekeseni woyambirira [4].Kuphunzira kupatukana koyambirira kwa kutsitsi mu mphuno yoteroyo sikutheka chifukwa cha magalasi a pamwamba pa zobowoleza zomwe zimakonza kutalika kwa ndime za mphuno.

Dalitso et al.adapeza kupanikizika kwa jekeseni wa 800 bar pogwiritsa ntchito nozzle ya acrylic jekeseni yokhala ndi orifice imodzi yokha [5].Kapangidwe kameneka kanali kophatikizana mokwanira kulola kusweka koyambirira kwa kutsitsi komwe kumatuluka kuchokera kumphuno kuti kuphunziridwe nthawi imodzi ndi mu-nozzle orifice cavitation.

Tsoka ilo, palibe zambiri zokhudzana ndi kapangidwe kake, monga miyeso kapena makina osindikizira, omwe adaperekedwa.Khama lina lomwe liyenera kutchulidwa ndi kafukufuku waposachedwa ndi Butcher et al[6].Gululo lidapanga nozzle ya quartz kuti iphunzire zopopera zowira zomwe zimayenderana ndi injini zoyatsira moto ndipo adayikanso singano yosinthidwa kuti muchepetse kupsinjika mumphuno kuchokera ku mphamvu ya singano.Kupanikizika kwawo kwa jakisoni kunali kochepera 40 bar.

Kafukufuku waposachedwa kwambiri yemwe adapeza kukakamizidwa kwambiri kwa jekeseni ndi wa Mitroglou et al[7].Olembawo adawunikira zida za cavitation mkati mwa geometry yowonekera ya VCO yokhala ndi mabowo asanu ndi limodzi.Iwo anafika 400 mipiringidzo, koma chifukwa chapang'onopang'ono chilema kukula ndi chikhumbo kusonkhanitsa deta zokwanira kumanga pamodzi pafupifupi zithunzi cavitation nyumba, jekeseni kuthamanga anali okha 300 bala.Cavitation idawonedwa mbali zonse za orifice, monga momwe adaphunzirira koyambirira kwa Arcoumanis.Mu phunziro ili, chingwe cavitation chinawonedwa kokha panthawi yotsegulira valavu ya singano, ndipo imagwirizana ndi malo a vortex yomwe imayikidwa pa nkhope ya singano ya jekeseni.