Yechokwadi Itsva Katsi Perkins Diesel Fuel Injector 2645A743 321-0990 10r-7668 Inoenderana nePerkins Pj Injini

Mhedzisiro yedhayamita yenozzle, kudzvanywa kwejekiseni uye ambient tembiricha pane yekupfapfaidza maitiro muinjini yedhiziri(Chikamu 3)

3. Mhedzisiro uye nhaurirano

Ongororo iyi yakashandisa madhayamita maviri akasiyana anoti 0.20 mm ne0.12 mm. Iyi simulation uchishandisa akati wandei ambient tembiricha pa500 K uye 700 K kune yega jekiseni kudzvanywa tevedzera ne 40 MPa, 70 MPa uye 140 MPa. Chinangwa cheiyi simulation ndechekuongorora iyo yakasiyana yemhando yekupfapfaidza inopesvedzera nedhayamita yenozzle, ambient tembiricha uye kudzvanywa kwejekiseni reinjini yedhiziri. Ongororo yehunhu hwekupfapfaidza iyi simulation inonyanya kutarisisa kudonhwe dhayamita, kureba kwekupinda uye kureba kwekuparadzana kunopesvedzera kubva pakushandiswa kweparameter. Grid senitivity yakaedzwa pane modhi ine masaizi akasiyana egidhi. Saizi yegridi yakakamurwa kuita nhanho nhatu dzinoti dzakakora, dziri pakati nepakati uye dzakanaka magridi. Tafura 2 inoratidza huwandu hwezvinhu nemanodhi eboka rega rega remasaizi egidhi akasiyana.

Kunze kwezvo, huwandu hwezvinhu huri kubva 24997 kusvika 114555 zvinhu. Huwandu hwezvinhu zviri pachena hunoenderana nenhamba dzemanodhi nekukwira nhanho yehukuru hwegridi kubva pakukora kuenda kune yakatsetseka pamwe nedanho rekutsvedzerera kubva pasi kuenda kumusoro.

Droplet dhayamita yepfapfaidzo yanga iri Mufananidzo 6 unoratidza kuti pa 40 MPa dhayamita yedonhwe pa 0.20 mm uye 500 K parameter inoratidza mamwe madonhwe saizi yeruvara dzvuku inomiririra kune yakakura saizi donhwe zvichienzaniswa ne0.12 mm 700 K. Donhwe rekugovera saizi ye0.12 mm uye 0.2 mm inoratidzwa mumufananidzo 7 uye 8. Sezvinoratidzwa mumagrafu, zvinoratidza kuti muenzaniso we saizi yekugovera yedonhwe inofanana kune mumwe nemumwe. Iyo yakakwirira ye ambient tembiricha uye jekiseni pressure inopa diki dhayamita yedonhwe.

Mhedzisiro inotsanangura kuti mafuta mashoma akaiswa mukamuri anogona kukonzera kupisa kwakaderera. Panguva imwe chete Droplet dhayamita zvinoenderana aerodynamic kuzvuzvurudza mukamuri inogona kukanganisa Droplet dhayamita yakaitwa diki kana mhepo kudhumhana nemafuta.