Yenziwe e-China i-Common Rail injector ye-Fuel 0 445 120 067 0445120067 ye-Bosch Diesel Fuel Injector Spare Part

Izitofu zamafutha ohlobo lwemingxuma zisetyenziswa ikakhulu kwiinjini zedizili ezinamagumbi okutshisa ngokutofwa ngokuthe ngqo. Zahlulwe zibe ziindidi ezinde nezimfutshane ngokwendlela yomlomo wesitofu samafutha. Inani lemibhobho li-1 ukuya ku-8, kwaye ububanzi be-nozzle bu malunga ne-0.15 ukuya kwi-0.7 mm. Umzobo woku-1 ubonisa i-injector ye-fuel-hole ende esetyenziswa kwi-injini ye-diesel, equkethe i-valve yenaliti, i-valve ye-valve, i-push rod, i-spring elawula uxinzelelo, i-screw elawula uxinzelelo kunye nomzimba wesitofu se-fuel. Ububanzi bombhobho yi-0.35 mm, i-angle yekhoni yokutshiza yi-150, kwaye uxinzelelo lwenaliti yi-17.5 MPa.

Umbhobho wenaliti yenaliti (kubandakanya ivalve yenaliti kunye nomzimba wevalufa yenaliti), ekwaziwa ngokuba yiperi yevalve yenaliti, yenziwe ngentsimbi ekumgangatho ophezulu wengxubevange (GCr15) kwaye iphathwa ubushushu kwaye ngokuzithandela yagatywa ukuba ibe ngazibini, ngoko ayinakuba yatshintshisana. Ukukhutshwa okuhambelanayo yi-0.001 ukuya kwi-0.0015 mm. Kuyimfuneko ukuqinisekisa ukutyibilika okulungileyo kwaye akukho kuvuza kweoli. Ivalve yenaliti inemigangatho emibini eyiconical. Umphezulu weconical osezantsi usebenzisana nomphezulu weconical wangaphakathi ohambelanayo kumzimba wevalvu, obizwa ngokuba ngumphezulu weconical wokutywina ukutywina umngxuma ongaphakathi wesitofu; umphezulu ombindi we-conical ukumqolo we-oyile we-annular womzimba wevalvu ukuze umelane ne-axial thrust yoxinzelelo lwe-oyile ukwenza ivalve yenaliti inyuke, ebizwa ngokuba ngumphezulu othwele uxinzelelo. Isiphelo esiphezulu somzimba wevalve yenaliti sine-oyile ye-annular kunye nomngxuma wetshaneli yeoli, kwaye isiphelo esisezantsi sinomgodi we-oyile kunye nomngxuma wokutshiza. Iperi yevalve yenaliti ibotshelelwa kumzimba wesitofu ngekepusi eqinileyo. Uxinzelelo olulawula intwasahlobo lucinezela ivalve yenaliti kwisitulo sevalvu ngentonga yokutyhala. Umphezulu woqhagamshelwano phakathi kwevalve yenaliti kunye nentonga yokutyhala yindawo engqukuva, enokuthintela ivalve yenaliti ekuveliseni uxinzelelo olusecaleni ngenxa yokugoba kwentonga yokutyhala. I-elastic force ye-spring elawulayo yoxinzelelo inokuhlengahlengiswa yi-screw elawula uxinzelelo, kwaye ivalwe ngoxinzelelo olulawula i-nut emva kokulungiswa. Umgaqo wokusebenza we-injector evaliweyo uboniswe kuMfanekiso 4-46. Idizili yoxinzelelo oluphezulu olusuka kwimpompo yokutofa ingena kumngxuma we-oyile ngomjelo weoyile kumzimba wokutofa kunye nomzimba wevalufa yenaliti. Ekubeni umngxuma wokutshiza uvalwe ngevalve yenaliti, uxinzelelo lwe-diesel kwi-cavity lukhuphuka ngokukhawuleza. Xa uxinzelelo lwedizili lusebenza kumphezulu woxinzelelo lwekhowuni yevalve yenaliti inkulu kune-elastic force yoxinzelelo olulawula intwasahlobo, ivalve yenaliti iphakama nge-axial, umngxuma wokutshiza uyavulwa, kwaye idizili yoxinzelelo oluphezulu iqala ukutshiza ngaphakathi. igumbi lokutsha ngomngxuma wokutshiza. Ngenxa yempembelelo ye-throttling ye-spray hole, i-diesel efafaziweyo yenza iinqununu ezintle zenkungu kwaye ngokukhawuleza yenza umxube ovuthayo kunye nomoya. Le nkqubo yokutofa iyaqhubeka de impompo yokutofa iyeke ukubonelela ngeoyile, kwaye xa uxinzelelo lweoyile kwindawo yokutofa ingaphantsi kumandla alastiki oxinzelelo olulawula intwasahlobo, ivalve yenaliti ivala kwangoko umngxuma wokutshiza phantsi kwesenzo soxinzelelo olulawula intwasahlobo, kwaye inaliti iyayeka.

Uxinzelelo lwenaliti ye-injector evaliweyo ikakhulu ixhomekeke ekulayisheni kwangaphambili kwentwasahlobo elawula uxinzelelo. Ke ngoko, ukulungelelanisa ukulayisha kwangaphambili kwentwasahlobo elawula uxinzelelo kunokutshintsha ngokuthe ngqo ubungakanani boxinzelelo lwenaliti. Xa i-screw yokulungelelanisa iguqulwa ngaphakathi, ukulayishwa kwangaphambili kwentwasahlobo kuyenyuka kwaye uxinzelelo lwenaliti luyanda; ngokuchaseneyo, uxinzelelo lwenaliti luyancipha. Ukunyuswa kwevalve yenaliti kukhawulelwe ngumphezulu wesiphelo esisezantsi somzimba wesitofu kunye nokulayishwa kwangaphambili koxinzelelo olulawula intwasahlobo. Ngoko ke, ukuphakama okuphezulu kwe-valve yenaliti ye-injector yi-0.45mm ukuqinisekisa ukunqunyulwa kweoli ngokukhawuleza. Ngexesha lokusebenza kwe-injector, inani elincinci ledizili liyavuza phakathi kwevalve yenaliti kunye nomzimba wevalvu, liqukuqela libuyele kwisihluzo sedizili okanye itanki yamafutha ngombhobho weoyile wokubuya, kwaye kwangaxeshanye ithambisa iindawo zevalve yenaliti. .