EGR valve - nws yog dab tsi thiab kuv tuaj yeem tshem tau nws?

EGR valve yog ib qho tshwj xeeb hauv qab lub hood ntawm lub tsheb uas cov neeg tsav tsheb feem ntau muaj kev xav sib xyaw. Vim li cas? Ntawm qhov tod tes, nws yog lub luag haujlwm rau kev tswj cov pa roj carbon monoxide thiab cov khoom tsis zoo hauv nws, thiab ntawm qhov tod tes, nws yog ib feem uas feem ntau ua tsis tiav. Feem ntau, lub tsheb tshiab, tus nqi ntawm nws cov kev kho yuav ntau dua. Yog li ntawd, qee tus neeg txiav txim siab tshem tawm EGR system hauv lawv lub tsheb. Puas yog tiag?

Koj yuav kawm dab tsi los ntawm tus ncej no?

• Dab tsi yog qhov tso pa tawm roj recirculation valve?
• Ua li cas nws ua hauj lwm?
• Tshem tawm, ua haujlwm, ua kom tsis pom kev EGR - vim li cas cov kev ua no tsis pom zoo?

Nyob rau hauv luv luv

Lub EGR valve yog lub luag haujlwm los txo cov tshuaj lom neeg uas raug tso tawm rau hauv cov huab cua nrog rau cov pa pa. Yog li ntawd, peb cov tsheb ua raws li feem ntau lees txais cov qauv tso pa tawm. Yog tias EGR system tsis ua haujlwm, nws yuav tsum tau ntxuav lossis hloov nrog lub valve tshiab. Txawm li cas los xij, nws tsis pom zoo kom tshem tawm, lov tes taw lossis qhov muag tsis pom - qhov no yog kev ua txhaum cai uas ua rau muaj huab cua tsis zoo thiab muaj kuab paug ntau dua.

Dab tsi yog qhov tso pa tawm roj recirculation valve?

EGR (Exhaust Gas Recirculation) txhais tau tias Exhaust Gas Recirculation Valve. Nws yog ntsia nyob rau hauv lub engine tso manifoldthiab ib qho ntawm nws txoj haujlwm tseem ceeb yog purification ntawm cov pa pa tawm los ntawm cov khoom muaj carcinogenic chemical compounds - Hydrocarbons CH, nitrogen oxides NOx thiab carbon monoxide CO. Cov ntsiab lus ntawm cov tshuaj no feem ntau yog nyob ntawm hom combustible cua-roj sib tov nyob rau hauv lub cav chambers:

• hlawv ib tug nplua nuj sib tov (ntau roj, me ntsis oxygen) ua rau kom cov concentration ntawm hydrocarbons nyob rau hauv lub tso pa gases;
• Lean hlawv (siab oxygen, tsis tshua muaj roj) ua kom cov concentration ntawm nitrogen oxides nyob rau hauv lub tso pa.

EGR valve (EGR valve) yog cov lus teb rau kev ua kom muaj kuab paug ib puag ncig thiab ua rau huab cua tsis zoo, uas tsis txwv rau ib puag ncig ib puag ncig. Kev txhawj xeeb ntawm tsheb, kuj paub txog cov kev pheej hmoo, muaj qee lub sij hawm tsom mus rau kev muab cov kev daws teeb meem niaj hnub no, thiab cov thev naus laus zis, uas tom qab ntawd pom cov ntawv thov hauv peb lub tsheb. Ntawm lawv peb tuaj yeem nrhiav cov tshuab xws li catalytic converters, cov lim dej los yog EGR valve. Qhov kawg, tsis sib haum xeeb rau kev ntseeg, nws tsis ua mob rau lub tshuab tsav, uas yog, nws tsis cuam tshuam qhov kev ua tau zoo ntawm lub cev muaj zog.

EGR valve - txoj cai ntawm kev ua haujlwm

Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm EGR tso tawm valve feem ntau yog nyob ntawm "Blowing" ib tug npaum li cas ntawm cov pa pa rov qab mus rau hauv lub engine. (tshwj xeeb, mus rau hauv lub combustion chamber), uas txo qhov tso tawm ntawm cov tshuaj phem. High kub tso pa gases uas rov nkag mus rau hauv lub combustion chamber ceev cov evaporation ntawm cov roj thiab zoo dua npaj cov sib tov... Recirculation feem ntau tshwm sim thaum huab cua-roj sib tov yog lean, uas yog, ib qho uas muaj ntau cov pa oxygen. Cov roj flue ces hloov O2 (uas yog tam sim no nyob rau hauv ntau), uas txo cov concentration ntawm cov yav tas los hais nitrogen oxides. Lawv kuj cuam tshuam rau oxidation ntawm qhov hu ua "Broken" hydrocarbon chains.

Cov pa roj recirculation tshuab tau muab faib ua ob hom tseem ceeb - sab hauv thiab sab nraud:

• Internal tso pa roj recirculation - koom nrog kev siv cov kev daws teeb meem siab tshaj plaws hauv lub sijhawm, suav nrog kev kaw ntawm cov pa tso pa tawm qeeb, thiab tib lub sijhawm cov khoom siv tau qhib. Yog li, ib feem ntawm cov pa pa tawm tseem nyob hauv chav combustion. Internal system yog siv nyob rau hauv high-speed thiab high-power units.
• External pa roj recirculation - qhov no yog lwm yam EGR. Nws yog tswj los ntawm lub computer, uas tseem yog lub luag hauj lwm rau ib tug xov tooj ntawm lwm yam tseem ceeb kev khiav hauj lwm tsis ntawm lub tsav tsav. Cov pa roj recirculation valve yog qhov ua tau zoo dua li lub hauv paus system.

Puas yog EGR qhov muag tsis pom kev pom zoo?

Cov pa roj recirculation valve, nrog rau ib feem ntawm lub luag haujlwm rau kev ntws ntawm cov pa roj, dhau sij hawm nws tau qias neeg. Nws tso cov deposits - deposits ntawm unburned roj thiab roj hais, uas harden nyob rau hauv lub siab kub thiab ua ib tug nyuaj-rau-tshem tawm crust. Qhov no yog ib txoj kev uas yuav tsum tau zam. Yog li ntawd, qee zaum peb yuav tsum ua Kev tu kom zoo ntawm cov pa roj recirculation valve, zoo dua thaum muaj teeb meem nrog nws txoj haujlwm tsis muaj txiaj ntsig - incl. nce combustion, clogged particulate lim los yog, nyob rau hauv heev mob, lub cav kaw.

EGR tu thiab hloov

Qhov kev tso cai kev pab cuam cuam tshuam txog cov pa roj recirculation valve cuam tshuam rau nws txoj kev kho (tu) lossis hloov nrog ib qho tshiab. Txawm li cas los xij, vim muaj kev xav tsis zoo txog qhov cuam tshuam tsis zoo ntawm EGR ntawm lub zog ntawm lub cav, qee tus neeg tsav tsheb thiab cov kws kho tsheb tau hloov mus rau peb qhov kev tawm tsam kev ua yeeb yam. Cov no:

• tshem tawm cov pa roj recirculation valve - muaj nyob rau hauv Kev tshem tawm ntawm EGR system thiab hloov pauv ntawm qhov hu ua bypassuas, txawm hais tias zoo sib xws hauv kev tsim, tsis tso cai rau cov pa roj nkag mus rau hauv qhov system kom tsawg;
• dig muag EGR - muaj mechanical kaw ntawm nws txoj kevdab tsi tiv thaiv lub system los ntawm kev ua haujlwm;
• hluav taws xob deactivation ntawm cov pa roj recirculation system - muaj nyob rau hauv deactivation mus tas li electronically tswj valve.

Cov kev ua no kuj nrov vim lawv cov nqi - lub valve tshiab tuaj yeem raug nqi txog 1000 zlotys, thiab rau qhov muag tsis pom cov pa roj recirculation system thiab ntxuav nws, peb yuav them txog 200 zlotys. Ntawm no, txawm li cas los xij, nws tsim nyog ncua ib pliag thiab xav txog Dab tsi yog qhov cuam tshuam ntawm qhov txhaws EGR valve.

Ua ntej, nws muaj kev puas tsuaj rau ib puag ncig. Cov tsheb uas muaj lub tshuab hluav taws xob hloov los yog ntsaws cov pa roj recirculation valve ntau tshaj qhov tso cai combustion nqi. Qhov thib ob, nws tshwm sim thaum lub valve qhib, lub kev ua yuam kev hauv kev tswj hwm, ua rau poob ntawm kev tsav tsheb tsis zoo (Qhov no yog qhov tseeb tshwj xeeb rau xyoo tshiab). Peb kuj tuaj yeem soj ntsuam lub teeb pom kev ntawm Lub Cav lossis qhov taw qhia uas qhia txog qhov tsis sib xws hauv cov pa ntxuav cov pa. Qhov thib peb, thiab qhov tseem ceeb, tsis muaj ib qho ntawm cov kev ua saum toj no (kev tshem tawm, kev cais tawm, qhov muag tsis pom kev) raug cai. Yog tias kev tshuaj xyuas ntawm txoj kev qhia tias peb tsav tsheb tsis muaj EGR system (lossis nrog lub ntsaws) thiab yog li tsis ua raws li cov qauv emission, peb pheej hmoo raug nplua txog PLN 5000... Peb kuj muaj lub luag haujlwm kom tau lub tsheb tawm ntawm txoj kev.

Nrhiav koj EGR valve tshiab ntawm avtotachki.com

Raws li koj tuaj yeem pom, nws tsis tsim nyog ua qhov tsis zoo li no. Tus nqi peb tuaj yeem them rau qhov tshem tawm lossis qhov muag tsis pom EGR yog ntau zaus tus nqi uas peb yuav yuav lub valve tshiab. Yog li cia peb saib xyuas peb lub hnab nyiaj thiab lub ntiaj teb, thiab ua ke cia peb hais tias tsis txhob ua txhaum cai.

Puas yog koj tab tom nrhiav EGR valve tshiab? Koj yuav pom nws ntawm avtotachki.com!

Kuj xyuas:

Qhov tsis hnov ​​tsw ntawm cov pa tawm hauv lub tsheb txhais li cas?

Puas yog raug cai tshem tawm DPF?

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