Umjovo Wamafutha Osebenza Kakhulu EJBR01801Z Izingxenye Zenjini Yezitimela Ezivamile Ze-Delphi Auto

Umbhobho wokujova uyingxenye ebalulekile yokunemba exhumanisa umjovo kaphethiloli kanye ne-atomisation, futhi ukusebenza kahle kwesistimu yomjovo kaphethiloli kuthintwa kakhulu izici zokugeleza ngaphakathi kombhobho. Uphethiloli egumbini lokucindezela ku-inlet ye-nozzle, indawo ephambanayo ye-contraction yesiteshi sokugeleza, izinga lokugeleza likaphethiloli liyakhuphuka, ukucindezela kwendawo kuncishiswa kuze kube ngaphansi kokucindezela komhwamuko we-saturation kaphethiloli, okuholela ku-cavitation. I-bubble ye-cavitation eqhubekayo eyenziwa ngokuqhubekayo ngaphansi kwezimo zokucindezela okuphezulu, ukuwa kwe-micro-jet kanye nokucindezela kwayo komthelela okukhiqizwa umthelela wendawo yangaphakathi ye-spray hole, ngokuhamba kwesikhathi, indawo engaphakathi ye-spray hole izokhiqiza. imifantu kanye nama-craters, ukugeleza kwangaphakathi kwe-nozzle kanye ne-atomisation yesifutho kuzothinteka, futhi ezimeni ezinzima, umlomo wombhobho uzohluleka. Ngakho-ke, kubaluleke kakhulu ukutadisha ukuthuthukiswa kokugeleza kwe-cavitation ngaphakathi kwe-nozzle kanye ne-cavitation yokugqoka endaweni yangaphakathi yodonga lwembobo yesifutho.

Imingcele ye-geometrical ye-nozzle inethonya elikhulu ekugelezeni kwe-cavitation kanye nokugqoka kwe-cavitation.UShervani et al. kanye no-Lee et al. kuphetha ngokuhlaziywa kokulingisa ukuthi ukwanda kwe-taper ye-nozzle kunganciphisa ngempumelelo umthelela wokugoqa kwebhamuza ekugqokeni kwe-cavitation endaweni engaphakathi ye-nozzle, nokuthi ukuthembeka kwe-nozzle kuzothuthukiswa. Lee et al. kusukela eNyuvesi yaseHanyang yenze ucwaningo lokuhlola futhi yathola ukuthi ubukhulu besilinganiso sobude be-nozzle kuya kububanzi, amandla engeziwe adingekayo ukuze kukhiqizwe i-cavitation, okungukuthi, i-cavitation iyacindezelwa njengoba ubude bombhobho bukhula.Brusiania et al. kuqhathaniswe ukusebenza kwe-hydrodynamic yama-cylindrical kanye nama-conical nozzles futhi kwatholakala ukuthi izinga lokugeleza kwangaphakathi ku-conical nozzle linciphe kakhulu, futhi ukufana kukonke kokugeleza kuthuthukiswa kakhulu. Ngokuphathelene nokubikezela ingozi ye-cavitation, i-Dular et al. baphetha ngokuhlaziywa kwabo ukuthi amabhamuza e-cavitation eduze nodonga azowa ngokulinganayo, futhi akhiqize ukugeleza komthelela we-micro-jet odongeni ohlangothini olukude kakhulu nodonga lwangaphakathi lombhobho.Zhang et al. ithole imodeli entsha yokubikezela ukugqokwa kwe-cavitation esekelwe kuthiyori yezinga lokudluliswa kwenqwaba phakathi kwezigaba ezihlukene ngokufunda izinga lokudluliswa kwenqwaba phakathi kwezigaba ezihlukene futhi yaqinisekisa ku-nozzle eyenziwe lula, kodwa imodeli ayikwazanga ukubikezela ngokunembile ingozi ye-cavitation, futhi akunjalo. kungenzeka ukubikezela ingozi ye-cavitation. Kodwa-ke, imodeli ayikwazi ukunikeza isici esinembile sobuningi bengozi ye-cavitation. Okwamanje, lapho kuhlolwa ubungozi bokugqoka kwe-cavitation ku-nozzle, ukugxila okuyinhloko kusendaweni yomlomo lapho i-cavitation ingase yenzeke khona kanye nasekuhloleni izinga lokugqoka kwe-cavitation ezindaweni ezahlukene ngaphakathi kwe-nozzle. Kodwa-ke, akukho ukumelela okulinganiselwe kwezinga lokugqoka ezindaweni lapho kungenzeka khona i-cavitation, futhi kukhona ukuntuleka kokucwaninga ngomphumela wemingcele yejometri ye-nozzle engozini yokulimala kwe-cavitation.