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

Cavitation Mukati Yepamusoro-Kudzvanya Optically Transparent Fuel Injector Nozzles(CHIKAMU 3)

Kuti mudziyo wakanamwa sei, uye mabatirwo akaitwa mahwendefa, hazvina kubatanidzwa mune zvakaburitswa.Mafomu maviri etambo cavitation akaonekwa: imwe yakaumbwa mumavortices akasungirirwa kune chikamu chejometri yakagadzirirwa kutevedzera tsono, uye imwe yakaumbwa muvhareti yakabatanidza maburi maviri orifice.

Badock et al.yakawana kudzvinyirirwa kwakakwirira kwejekiseni uchishandisa acrylic nozzles, kunyangwe zvakada kufanana neArcoumanis et al, chidimbu chacho chaive chakakura zvakanyanya kupfuura chepakutanga jekiseni nozzle[4].Kudzidza kupatsanurwa kwekutanga kwepfapfaidzo mumhino yakadaro hazvigoneke nekuda kweiyo lensing mhedzisiro yepasi peiyo yakacherwa mitsetse inogadzirisa kureba kweiyo nozzle orifice ndima.

Blessing et al.vakawana majekiseni e800 bar vachishandisa acrylic jekiseni nozzle ine imwechete off-axis orifice[5].Dhizaini yacho yaive yakabatana zvakakwana kuti ibvumire kuparadzaniswa kwekutanga kwepfapfaidzo inobuda kubva pamuromo wemuromo kuti idzidzwe panguva imwe chete ne-in-nozzle orifice cavitation.

Nehurombo, hapana rumwe ruzivo nezve dhizaini, senge zviyero kana nzira yekuisa chisimbiso, yakapihwa.Imwe nhamburiko inofanirwa kutaurwa ndeye ongororo yazvino yakaitwa naButcher et al[6].Boka racho rakagadzira quartz nozzle kuitira kuti vadzidze mafirita anofashaidza anoenderana neinjini dzinopisa moto uye vakatoisa tsono yakagadziridzwa kuti ideredze kushushikana mumuromo kubva kusimba rekugara kwetsono.Kumanikidza kwavo jekiseni kwakaganhurirwa ku40 bar.

Chidzidzo chechangobva kuitika chakawana kudzvanywa kwejekiseni kwakakwira ndekweMitroglou et al[7].Vanyori vakaongorora zvimiro zvecavitation mukati meiyo optically yakajeka VCO geometry ine matanhatu orifice maburi.Vakasvika 400 bar, asi nekuda kwekunonoka kukura uye chishuwo chekuunganidza data rakakwana kuvaka ensemble avhareji yemifananidzo ye cavitation zvimiro, jekiseni kumanikidza kwakagumira ku300 bar.Cavitation yakacherechedzwa pamativi ese eiyo orifice, sepakutanga kudzidza kweArcoumanis.Muchidzidzo ichi, tambo cavitation yakaonekwa chete panguva yekuvhura kwevhavhavha yetsono, uye yakaenzana nenzvimbo yevortex yakasungirirwa kune injector yetsono chiso.