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

I-Eddy Enkulu yokulingisa yokuvula i-diesel injector enemodeli ye-cavitation yezigaba ezimbili(ingxenye 1)

Abstract.

Ephepheni lamanje, kwethulwa imiphumela eyinkomba yokulingisa ukugeleza phakathi nesigaba sokuvula somjovo weDizili. Ukuze uthwebule inkambu yokugeleza eyinkimbinkimbi kanye nezakhiwo ze-cavitation ezakha ku-injector, i-Large Eddy Simulation iqashwe, kanti ukucindezelwa koketshezi kufakiwe. Ngokucabangela imiphumela ye-cavitation, imodeli yengxube ye-homogenous yezigaba ezimbili yasetshenziswa.

Izinga lokudluliswa kwenqwaba yemodeli yengxube yalungiswa ukuze kukhawulwe ngangokunokwenzeka ukwenzeka kwezingcindezi ezingezinhle. Ngesikhathi sokulingisa, iziqongo zokucindezela ziye zatholwa ezindaweni zokuwa komhwamuko, ngobukhulu obungaphezu kuka-4000bar, obungaphezu kokucindezeleka kwesivuno sezinto ezivamile. Izindawo zalezi ziqongo zokucindezela zihambisana kahle nendawo yokuguguleka yangempela njengoba itholakala kuma-X ray scan.

1. Isingeniso

Amasistimu wokujova udizili adlala indima ebalulekile ezinjinini ezivuthayo zangaphakathi njengoba athinta ukwakheka kwesifutho sikaphethiloli, i-atomization kanye nokusha, ukukhishwa kwesisi esikhiqiziwe nokusebenza kahle kwenjini. Isivinini sejethi esakhiwe singama-500m/s, nezingcindezi ezikhuphuka nomfula zilinganiselwa ku-2000bar. Amathrendi amanje akhombisa ingcindezi yomjovo ukuthi ikhuphuke ifike ku-3000bar, ukuze kuhlangatshezwane nemithetho ye-EU yesikhathi esizayo ekukhiqizweni komshini. Kodwa-ke, amazinga okucindezela aphezulu abangela ama-velocities aphezulu kakhulu ngokusebenzisa amavesi aqinile ku-injector ye-Diesel kanye nokusheshisa okunamandla ekushintsheni kwesikhombisi-ndlela esibukhali (amakhona, ama-fillet njll.), okuholela ekucindezelekeni kwendawo ye-static yehla ngaphansi kokucindezela kokugcwala futhi kubangele i-cavitation.

Ngaphezu kwalokho, i-cavitation ingase iholele ekulimaleni kokuguguleka kwe-cavitation kanye nokuwohloka okukhulu kokusebenza komjovo, ngisho nokuhluleka kwe-injector eyinhlekelele, okungalimaza injini, uma ithiphu lomjovo liphuka. Kube nemizamo eminingi yokubikezela ukuguguleka komjovo weDizili, bheka isb. umsebenzi kaKoukouvinis et al. [1].