Diesel Injector Fuel Injector 0445110466 0445110717 0445110794 Bosch for Jianghuai Auto

Yakakura Eddy Simulation yedhiziri injector kuvhura ine maviri chikamu cavitation modhi(chikamu 1

Abstract.

Mune bepa razvino, mhedzisiro yekuyerera kwekuyerera panguva yekuvhura chikamu cheDiesel jekiseni inoratidzwa. Kuti ubate iyo yakaoma kuyerera munda uye cavitation zvimiro zvinogadzira mujekiseni, Yakakura Eddy Simulation yakashandiswa, nepo compressibility yemvura yakabatanidzwa. Kufunga nezve cavitation mhedzisiro, maviri chikamu homogenous musanganiswa modhi yakashandiswa.

Nhamba yekufambisa yakawanda yemuenzaniso wemusanganiswa wakagadziriswa kuti udzikise zvakanyanya sezvinobvira kuitika kwezvipingamupinyi zvisina kunaka. Munguva yekufananidza, kukwirira kwepamusoro kwakawanikwa munzvimbo dzekuputsika kwemhute, nehukuru hunodarika 4000bar, iyo yakakwirira iyo kushushikana kwegoho kwezvinhu zvakajairika. Nzvimbo dzepamusoro pekumanikidza kwakadaro dzinoenderana neiyo chaiyo nzvimbo yekukukurwa sezvakawanikwa kubva kuX ray scans.

1. Nhanganyaya

Diesel jekiseni masisitimu anoita basa rakakosha muinjini dzinopisa dzemukati sezvo dzichikanganisa kuumbwa kwemafuta ekupfapfaidza, atomization uye kupisa, kuburitswa kwakagadzirwa uye kushanda kweinjini. Majet velocities akaumbwa ndeekurongeka kwe500m/s, ane dzvinyiriro dzekumusoro dzakatenderedza 2000bar. Mafambiro azvino anoratidza kumanikidzwa kwejekiseni kusvika ku3000bar, kuitira kuti isangane nemitemo yeEU mune ramangwana. Nekudaro, mazinga ekudzvinyirira akakwira anokonzera mavhesi akanyanya kuburikidza nendima dzakasimba mujekitari yeDiesel uye kukwidziridza kwakasimba mukuchinjika kwakananga nzira (makona, mafiritsi nezvimwewo), izvo zvinotungamira kune yemuno static pressure inodonha pazasi pe saturation pressure uye kukonzera cavitation.

Uyezve, cavitation inogona kutungamirira kune cavitation erosion kukuvadzwa uye kukanganisa kwakanyanya kwekuita kwejekiseni, kunyange kukanganisa kwejekiseni kukundikana, izvo zvinogona kukuvadza injini, kana injector tip ikaputika. Pakave nekuedza kwakawanda kwekufanotaura kwekukukurwa kweDiesel injector, ona semuenzaniso basa raKoukouvinis et al. [1].