Diesel Injector Fuel Injector 0445120056 Bosch for Man Engine

Dynamic cavitation mukati meyakanyanya kuita dhiziri jekiseni - yekuyedza uye CFD kuongorora(chikamu 1

Abstract.

Mubatanidzwa wekufananidza uye akakosha ekuedza matekiniki akashandiswa kuongorora kuyerera kwechinguvana uye cavitation phenomena yechishandiso chekudzora mukati meyakanyanya kuita dizeli injector. Dynamic cavitation maitiro akabatwa pachiyero chikuru chakajeka modhi, iyo yakazoshandiswa kugadzira uye kusimbisa yepamberi turbulence CFD modhi neLarge Eddy Simulation. Aya matekiniki anoshandiswa mukati meDelphi kuwana nzwisiso uye optimize jekiseni mashandiro pakukura chaiko.

1 Nhanganyaya

Injector yedhiziri zvine nharo ndiyo inonyanya kukosha mukuita premium injini kuita nekushomeka kwemhepo. Naizvozvo zvinotevera kuti majekiseni einjini dzekushanda kwepamusoro anofanirwa kudzorwa nemazvo. Nekuda kweizvozvo, iyo hydraulic control mavharuvhu uye orifices inofanirwa kugadzirwa uye kugadzirwa nehupamhi hwepamusoro, uye kunzwisisa maitiro avo akakosha kunopa mupiro wakakosha mukugadzirisa uye kugadzirisa zvakanaka. Delphi inoshandisa musanganiswa wekufananidza uye hunyanzvi hwekuyedza matekiniki ekuongorora mafambiro ezvishandiso izvi.

Sezvineiwo ese majekiseni matsva, Yepamusoro Performance Diesel Injector iri pasi pekuvandudzwa kuDelphi yanga iri nyaya yezvakawanda zvekutevedzera. Kunyanya kufarira bepa iri, ndeye CFD kuferefeta kweiyo hydraulic control mabasa.

Flow cavitation inyaya yakajairika mumidziyo yejekiseni yedhiziri; yapfuura chiitiko chekuyedza chakaratidza kuti iyo indasitiri chiyero Reynolds-Averaged Navier-Stokes (RANS) yekuenzanisira haina kukwanisa kupa mhedzisiro ye dynamic cavitation maitiro. Saka mukuwedzera kune basa reCFD, hombe mamodheru (LSM) ezvikamu zvakasiyana zve hydraulic control mabasa akatumwa. Kushandiswa kwemhando dzakajeka dzemavharuvhu ekudzora uye orifices pazvikero zvakakura zvakanyanya zvinogonesa kunzwisisa kwakagadziridzwa kwekuita kwehydraulic performance [1] isingawanikwe nyore nemamwe maitiro. Iyo hydraulic performance inozvimiririra zvakakwana pazviyero zvese kuti ibatsire semudziyo wekusimudzira [2].