Muaj nuj nqi ntawm Diesel Cav Injectors
Raws li ib qho tseem ceeb ntawm cov cav tov diesel, cov injectors feem ntau atomize roj rau hauv cov khoom zoo thiab raug txhaj rau hauv lub combustion chamber. Qhov no ua kom muaj kev sib xyaw ua ke nrog huab cua kom tsim tau cov khoom sib tov sib xyaw.
Lub injector qhov tseem ceeb yog nyob rau hauv kev ua kom cov roj xa tuaj raws li "qis{0}}siab-low" hauv paus ntsiab lus ntawm txhua lub voj voog txhaj tshuaj. Tsis tas li ntawd, nws yuav tsum tswj xyuas qhov kev txhaj tshuaj ruaj khov, cov tshuaj tsuag tsim nyog, qhov zoo tshaj plaws tshuaj tsuag lub khob hliav qab, thiab siab - zoo atomization los tiv thaiv dripping.
Hom thiab Structure ntawm Injectors
Tam sim no, kaw- hom injectors yog dav siv nyob rau hauv diesel xyaw, nrog subtypes nrog rau orifice-hom thiab koob-valve- hom injectors. Cov ntsiab lus tseem ceeb ntawm lub kaw - hom injector yog lub nozzle, uas muaj ib rab koob valve thiab rab koob valve lub cev ua kom zoo sib xws nrog kev tshem tawm tswj ntawm 0.002 thiab 0.004 hli. Qhov no siab -precision haum yuav tsum tau sib tsoo me ntsis, ua interchangeability thaum siv inadvisable. Lub koob valve feem ntau yog tsim los ntawm siab - steel ceev nrog thermal stability zoo, thaum lub koob valve lub cev yog tsim los ntawm kev cuam tshuam - tiv taus siab - zoo alloy steel.
Kev tsim kho ntawm Orifice Injectors
Orifice injectors feem ntau muaj xws li rab koob valve los ua ke, thawb pas nrig, siab- tswj lub caij nplooj ntoos hlav, siab- tswj cov ntsia hlau, thiab lub cev txhaj tshuaj. Hom injector no yog tshwj xeeb tshaj yog haum rau cov cav diesel nrog ncaj qha -injection combustion chambers. Lub taub hau nozzle yog precision- tshuab nrog ib lossis ntau qhov kev txhaj tshuaj. Raws li tus naj npawb ntawm qhov, lawv tau muab cais ua ib qho - qhov, dual- qhov, lossis ntau- qhov injectors, nrog lub qhov taub feem ntau yog li ntawm 0.2 txog 0.5 hli.
Cov yam ntxwv ntawm tus yam ntxwv ntawm Axial-Needle Injectors
Cov ncej- koob hom injector sib txawv ntawm cov qhov ncauj qhov ncauj- hom injector. Hauv qab lub khob ntim lub khob ntim ntawm qhov qis kawg ntawm lub koob valve, lub ncej - koob txuas mus rau sab nraud. Cov ncej no - koob yog inverted conical los yog cylindrical nyob rau hauv cov duab. Vim yog tus ncej- koob tsim, cov tshuaj tsuag qhov ncauj ua ib lub nplhaib- zoo li tus slit. Qhov kev teeb tsa no tsim cov hollow conical lossis hollow cylindrical spray qauv thaum lub sij hawm roj txhaj tshuaj.
