Tso pa tawm tom qab tshem tawm cov catalyst - dab tsi tuaj yeem yog vim li cas
Txheem
Nws tsis yog qhov nyuaj los txiav tawm cov kab hluav taws xob tawm: qhov no tuaj yeem ua los ntawm koj tus kheej lossis hauv kev pabcuam tsheb. Hauv tebchaws Russia, qhov kev txiav txim zoo li no tsis suav tias yog kev txhaum cai yog tias tsuas yog ib pawg ntawm lambda sojntsuam raug teeb tsa hauv lub tsheb. Tab sis txawm tias muaj tag nrho cov pa oxygen sensors, cov kws tshuaj xyuas lub tsheb tsis pom muaj kev txaus siab rau cov catalyst.
Cov pa roj hlawv tawm hauv lub catalytic converter ntawm lub tsheb. Ib feem ntawm lub luag haujlwm rau kev ua kom huv ntawm emissions rau hauv qhov chaw raug tshem tawm los ntawm ntau tus neeg tsav tsheb. Lub zog ntawm cov roj av sab hauv combustion engine (ICE) tam sim ntawd nce, roj noj yog txo. Tab sis ntawm no muaj teeb meem tshwm sim. Tus neeg tsav tsheb ceeb toom: sai li sai tau thaum lub catalyst raug tshem tawm, cov pa taws tau tshwm sim los ntawm cov pa tso pa tawm. Dab tsi yog qhov ua rau ntawm qhov tshwm sim, thiab yuav ua li cas kom rov qab cov pa tawm rov qab mus rau qhov qub - lub ntsiab lus ntawm kev sib tham hauv cov rooj sib tham tsav tsheb.
Vim li cas lub tsheb haus luam yeeb ntau tom qab tshem cov catalysts
Converter-neutralizer (catalyst, CT, "kat"), nyob nruab nrab ntawm lub cev muaj zog thiab cov muffler, yog tsim nyob rau hauv daim ntawv ntawm ib tug hlau yeeb nkab nrog ceramic honeycombs nyob rau hauv. Cov tom kawg yog coated nrog noble hlau (ntau zaus - platinum), uas ua rau cov nqi siab ntawm kats.
Haus luam yeeb tom qab tshem tawm cov catalysts
Lub ntsiab yog ntsia nruab nrab ntawm cov thawj thiab thib ob pab pawg neeg ntawm oxygen sensors (lambda probes), uas tswj cov tsis muaj pa gases: kub, cov ntsiab lus ntawm teeb meem impurities. Honeycombs tsim kev tiv thaiv rau qhov ntws ntawm cov pa tawm, ua rau lawv nrawm. Nyob rau lub sijhawm no, ntawm kev txau ntawm honeycombs, tom qab hlawv cov pa roj los ntawm lub tog raj kheej lub cav tshwm sim. Raws li qhov tshwm sim ntawm cov tshuaj tiv thaiv tshuaj (catalysis), toxicity ntawm cov khoom tawm sab nraud raug txo.
Tom qab tshem tawm CT hauv qhov tso pa tawm, cov hauv qab no tshwm sim:
- Yuav tsum muaj roj ntau ntau, yog li cov pa luam yeeb muaj zog tawm ntawm lub muffler.
- Lub cav ECU, tsis meej pem los ntawm cov ntaub ntawv tsis sib haum xeeb los ntawm cov sensors, muab cov lus txib kom txhawb nqa lossis nqa cov huab cua sib xyaw rau lub tog raj kheej. Uas tseem nrog cov pa taws.
- Lub backpressure nyob rau hauv lub tso pa sib dhos hloov. Nws yog offset los ntawm kev siv roj ntau ntxiv. Yog li ntawd, cov qauv tso tawm yuav txawv, thiab tus neeg tsav tsheb pom lub plume tom qab lub tsheb.
Yog tias cov tsos mob ntawm cov pa luam yeeb tau txais qhov kev txiav txim siab zoo, ces cov xim yuav tsum tau muab cais tawm.
Ntau yam pa luam yeeb los ntawm cov pa tso pa tawm
Tom qab tshem lub kata, nws yog ib qho tsim nyog yuav tsum tau kho lub "lub hlwb" ntawm lub tshuab - kom rov kho lub computer. Yog tias koj tsis ua, cia siab tias yuav muaj "tail" hauv cov xim hauv qab no:
- Cov pa luam yeeb dub qhia tau hais tias cov khoom sib tov yog nplua nuj nrog roj av, uas nkag mus rau hauv lub tog raj kheej. Tsis muaj sij hawm los hlawv, ib feem ntawm cov roj tau muab pov rau hauv cov pa tawm. Ntawm no yog qhov txhaum nyob rau hauv lub tshuab hluav taws xob tswj chav tsev. Tau ua cov firmware zoo, koj yuav tau tshem ntawm qhov teeb meem.
- Cov xim xiav lossis grey-xiav ntawm lub tso pa qhia tias muaj roj ntau hauv cov hlab ntsha. Ib qho ntxiv ntawm cov roj nplua nyeem tshwm vim muaj zog rov qab tom qab tshem tawm cov catalyst. Qhov kev daws teeb meem rau qhov teeb meem yog nruab ib lub nplaim ntes nyob rau hauv qhov chaw ntawm cov khoom txiav tawm.
- Cov pa luam yeeb dawb los ntawm cov yeeb nkab tso tawm tom qab tshem tawm cov catalyst tshwm sim los ntawm ingress ntawm coolant mus rau hauv lub system. Txawm hais tias CT yuav tsis muaj dab tsi ua nrog nws: tej zaum nws yog condensate soaring.
Txhawm rau txiav txim siab qhov ua rau muaj pa luam yeeb ntau dua, koj yuav tsum tau ceeb toom ntawm qhov nrawm thiab nrawm qhov tshwm sim tshwm sim: thaum regassing thiab accelerating lub tsheb, ntawm idle.
Yuav ua li cas yog lub tsheb haus luam yeeb tom qab tshem tawm cov catalyst
Nws tsis yog qhov nyuaj los txiav tawm cov kab hluav taws xob tawm: qhov no tuaj yeem ua los ntawm koj tus kheej lossis hauv kev pabcuam tsheb. AT
Tab sis txawm tias muaj tag nrho cov pa oxygen sensors, cov kws tshuaj xyuas lub tsheb tsis pom muaj kev txaus siab rau cov catalyst.
Cov pa luam yeeb
Txawm li cas los xij, koj yuav tsum nkag siab tias qhov kev tshem tawm ntawm kata yog kev cuam tshuam tag nrho hauv kev tsim lub tsheb. Qhov no entails cov tsos ntawm cov teeb meem: pa luam yeeb ntawm txawv ntxoov, ib tug muaj zog tsw thiab extraneous suab los ntawm hauv qab.
Tom qab rho tawm ib yam khoom, ua cov kauj ruam hauv qab no:
- Txhim kho cov nplaim taws los yog muaj zog dua nyob rau hauv qhov chaw ntawm qhov nruab nrab, uas tsis tshua kim dua li cov catalyst. Qhov no siv tau rau cov xwm txheej uas qhov kev tshem tawm ntawm ib feem yog ib qho kev ntsuas tsim nyog (piv txwv li, tom qab kev tawg).
- Reconfigure, los yog, lov tes taw, lambda probes. Txwv tsis pub, qhov yuam kev Check Engine yuav nyob rau ntawm qhov ntsuas vaj huam sib luag, vim tias lub cav ua haujlwm tas li hauv hom xwm txheej ceev.
- Hloov kho cav ECU program, upload tshiab firmware.
Cov txiaj ntsig ntawm kev txiav tawm cov catalyst me me, thaum cov teeb meem tseem ceeb dua.
