Diesel Injector Fuel Injector Lr006496 A2c59513553 7h2q9K546CB 7h2q-9K546-CB for Land Rover 276dt Siemens Injector

1.Fault phenomenon

Yakashata atomization yejekiseni yemafuta (injection mumitsetse yakaonda kana mushure-inodonha) Chiratidziro chekunze ndechekuti tembiricha yeinjini yedhiziri yakakwira uye basa harina simba. Chikamu chepamusoro checylinder chine ruzha rwekugogodza. Iyo pombi ye exhaust inoburitsa utsi hutema. inzwi

2 zvikonzero zvekukundikana

Kubva pane zviri pamusoro, zvinogona kuoneka kuti kushata kweatomization yejekiseni kunonyanya kukonzerwa nekudzvanywa kwemafuta anopinda mukamuri yeoiri yeannular yejekiseni iri yakaderera pane yekutanga jekiseni pressure inotsanangurwa mumagwaro ehunyanzvi uye viscosity yemafuta. kuva akanyanya kukwirira. Zvikonzero zvikuru ndezvi (1) Kuiswa zvisina kunaka kwejekiseni remafuta kana pamusoro peiyo chaiyo yekubatanidza kwakasviba kana kune gasi rekudzokera shure, zvichiita kuti jekiseni remafuta riwedzere kupisa uye kukonzera kushomeka kweatomu yejekitori yemafuta (2) Mamiriro ehunyanzvi e jekiseni remafuta. Zvese zviratidzo zvemafuta emafuta zvinosangana nezvinodiwa. Kana iyo mafuta atomization yeinjector yemafuta yakashata, inonyanya kukonzerwa nekuderera kwehunyanzvi hwemamiriro eiyo injector yemafuta. (3) Kumanikidza kunodzora chitubu chejekitari yemafuta idiki zvakanyanya. Zvinogona kuoneka kuti kudzvanywa kwemafuta mukamuri yeoiri yeannular yejekiseni inoshanduka neiyo pre-yakasimba simba yakaiswa nekumanikidza kunodzora chitubu. Kana iyo pre-tightening force yakaiswa ne pressure inodzora chitubu iri diki zvakanyanya, kudzvanywa kwemafuta mu annular oil chamber kuchavewo kudiki. Kuwanda kwemamorekuru emafuta kudiki uye kudzvanywa hakuna kuramba kuchiwedzera. Kuwanda kwemamorekuru emafuta haasati asvika pahunyoro hwakakodzera panguva yejekiseni. Varuvhu yetsono inosairirwa nemafuta uye mafuta anobaiwa nekuti kuwanda kwemamorekuru emafuta hakuna kukwirira, saka simba rekuwedzera uye kupararira kwemafuta akapfapfaidzwa kunze kwemuviri wejekiseni idiki. Ndiko kuti, iyo atomization haina kunaka (4) Injector yemafuta haina kuvharwa zvakasimba. Kana jekiseni remafuta riri kushanda, vharafu yetsono uye chigaro chevharuvhu chinozununguka, izvo zvinokonzeresa kuneta kuputika panzvimbo yekushanda yevharuvhu yetsono uye delamination deformation. Pamusoro pezvo, kune kusvibiswa kwemagetsi, hydraulic flow erosion uye Corrosion uye zvimwe zvinofurira zvinoderedza kushata kwenzvimbo yekushanda yevharuvhu yetsono uye chigaro chevharuvhu, uye kuita chisimbiso kunova kwakashata uye kudonha kwemafuta, izvo zvinokanganisa kuwedzera kwehutsi hwemafuta mukati. iyo annular oiri chamber uye kusakwanisa kuwedzera density yemafuta mamorekuru, zvichikonzera kushomeka kweatomu.