I-Diesel Injector Fuel Injector 0445110466 0445110717 0445110794 Bosch for Jianghuai Auto

Ukulinganisa okukhulu kwe-Eddy yokuvula i-diesel injector kunye nemodeli ye-cavitation yesigaba ezibini(icandelo 1

Abstract.

Kwiphepha langoku, iziphumo ezibonisayo zokulinganisa ukuhamba ngexesha lesigaba sokuvula i-injector ye-Diesel iboniswa. Ukuze ubambe i-flow flow field kunye nezakhiwo ze-cavitation ezenza i-injector, i-Large Eddy Simulation isetyenzisiwe, kanti ukunyanzeliswa kolwelo kubandakanyiwe. Ukuthathela ingqalelo imiphumo ye-cavitation, imodeli yomxube wesigaba esibini isetyenzisiwe.

Umyinge wokudluliselwa kobunzima bemodeli yomxube wahlengahlengiswa ukuze unciphise kangangoko kunokwenzeka ukwenzeka koxinzelelo olubi. Ngexesha lokulinganisa, ukunyanzeliswa kwengcinezelo kufunyenwe kwiindawo zokuwa kwe-vapor, kunye nobukhulu obungaphezu kwe-4000bar, ephakamileyo ukuba uxinzelelo lwesivuno sezinto eziqhelekileyo. Iindawo zoxinzelelo olunjalo zihambelana kakuhle nendawo yokhukuliseko yokwenene njengoko ifunyenwe kwi-X ray scans.

1. Intshayelelo

Iinkqubo zokutofwa kwedizili zidlala indima ebalulekileyo kwiinjini zokutsha zangaphakathi kuba zichaphazela ukwenziwa kwesitshizi samafutha, i-atomization kunye nokutsha, ukukhutshwa kwezinto ezenziweyo kunye nokusebenza kakuhle kwe-injini. Izantya zejethi ezenziweyo zezomyalelo we-500m/s, kunye noxinzelelo lomlambo olujikeleze i-2000bar. Iindlela zangoku zibonisa uxinzelelo lwenaliti ukuya kuthi ga kwi-3000bar, ukuze kuhlangatyezwane nemithetho ye-EU yexesha elizayo ekukhutshweni. Nangona kunjalo, amanqanaba aphezulu oxinzelelo abangela i-velocities ephezulu kakhulu ngokusebenzisa iipaseji eziqinileyo kwi-injector ye-Diesel kunye nokukhawuleza okuqinileyo kwiinguqu ezibukhali (iikona, iifayili njl.), Okukhokelela ekubeni uxinzelelo lwe-static lwendawo lwehle phantsi koxinzelelo lwe-saturation kunye nokubangela i-cavitation.

Ngapha koko, i-cavitation inokukhokelela kumonakalo wokukhukuliseka kwe-cavitation kunye nokuthotywa okukhulu kokusebenza kwe-injector, kunye nokungaphumeleli kwe-injector eyintlekele, enokonakalisa injini, ukuba i-tip ye-injector iyaphuka. Kukho iinzame ezininzi zokuqikelelwa kokhukuliseko lwesitofu se-Diesel, jonga umzekelo umsebenzi we-Koukouvinis et al. [1].