Txoj kev overhauaul rau cov twj tso kua mis rau cov twj tso kua mis xav tau cov txheej txheem thiab cov ncauj lus kom ntxaws thiab cov ncauj lus kom ntxaws thiab kev ntsuam xyuas ntawm cov khoom tseem ceeb ntawm cov khoom tseem ceeb. Firstly lub cev yuav tsum tau soj ntsuam, tsom mus rau ntawm cov khoom siv neeg kho tshuab, xeb lossis xeb ntawm cov plunger saum npoo. Yog tias qhov chaw plunger nto yog pom tias muaj ntev rub tawm cov cim, nws qhia tau tias nws yuav tsum tau hloov cov kev ua haujlwm ntawm lub cev ntim khoom. Rau qhov chaw zoo ntawm cov phiaj xwm, yuav tsum tau ntsuas cov khoom siv txuas ntxiv mus rau ntawm cov khaub ncaws Nyob rau hauv ib txwm haum kev mob, lub plunger yuav tsum paub qeeb thiab tseem qis qis txav nyob rau hauv kev txiav txim ntawm tus kheej- qhov hnyav. Yog tias muaj stagnation, cia poob lossis tsis muaj kev txav ntawm txhua yam, nws txhais tau tias muaj kev hnav ntau dhau los yog deformation ntawm lub plunger khub.
Kev kuaj se ntawm kev sib khi ntawm cov plunger yog qhov tseem ceeb ntawm kev txhim kho. Tus neeg teb xov tooj yuav tsum tuav lub plunge tsho khov kho nyob rau hauv lub xib teg ntawm nws txhais tes, thiab tib lub sijhawm siv nws tus ntiv tes xoo thiab forefinger los thaiv cov roj thiab cov roj txuas ntxiv hauv feem. Tus neeg teb xov tooj yuav tsum maj mam rub lub plunger nrog rau lwm txhais tes, thiab txiav txim tias kev sib tw yog nce mus rau qhov chaw pib ua haujlwm tau txais kev sib tsoo tau zoo thiab cov pluaj tau looseded. Yog tias tsis muaj qhov txaus ntshai thaum rub cov txheej txheem lossis plunger tsis muaj peev xwm rov qab rau nws txoj haujlwm qub, nws qhia tau tias qhov haum thiab cov plunger subassembly yuav tsum tau hloov raws li tag nrho cov teeb. Txog kev kuaj pom ntawm cov roj outlet valve yuav tsum tau ua kauj ruam ntawm lub qhov hluav taws xob, ua ntej ntawm kev ua haujlwm ntawm lub siab, yog tias muaj kev ncua sij hawm pib dua lossis qhov tshwm sim ntawm Hysteresis, qhia tias kev sib khi saum npoo ntawm qhov hluav taws xob valve tau ua tiav tsis tau raws sijhawm.
Kev kuaj pom ntawm cov khoom siv ntawm cov khoom siv yuav tsum tsis txhob tsis quav ntsej. Tappet lub cev thiab cov tso kua mis lub cev kev tshem tawm yuav tsum tau ntsuas siv cov txheej txheem kev txhaj tshuaj ntau dua 0.2 hli, yuav tsum tau hloov nrog lub cev hnyav dua tappet lub cev lossis lub cev tso dej. Finally need to focus on verifying the plunger flange and control sleeve groove clearance, the parameters directly affect the fuel metering accuracy, the use of a ruler to detect the normal value of 0.02-0.08mm, if more than 0.12mm will lead to the control sleeve positioning inaccuracy, this time must be replaced with a new control sleeve in order to restore the precision of the system control. Tag nrho cov txheej txheem overhaul yuav tsum ua raws cov txheej txheem nruj kev ua raws li cov khoom siv tsis tu ncua, thiab cov khoom sib hloov tsis tu ncua kom ntseeg tau tag nrho kev sib xyaw.
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