I-Diesel Particulate Filter Basics

Kule ntetho yanamhlanje, siza kujonga ukusebenza kunye nomsebenzi wesihluzo seDizili yeNcam (DPF).Imixholo egqunyiweyo ibandakanya:

- Ulwakhiwo lwangaphakathi lweDPF, ukusebenza kunye nokusetyenziswa
- UkuHlaziywa ngokutsha kwe-DPF ngokufundwa kwe-Oscilloscope
- Iimbangela zokusilela kwe-DPF

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Molo, namhlanje ndiza kukusa kulwakhiwo kunye nomsebenzi wesihluzo se-diesel particulate.Iintsuku zomsi omnyama omdaka ziphela ngokukhawuleza ngenxa yobugcisa bokuphuma kwedizili obuqhubeka ukutyhubela iminyaka, kwaye nemithetho engqongqo yokukhupha idizili yayifuna ukuba iinjini zedizili zicoceke ngakumbi.
Isihluzo se-diesel particulate saziwa ngokuba yi-DPF,sisixhobo sokucoca esifakelwe ukukhupha iinkqubo kwiinjini zedizili zale mihla. TIzixhobo ezinokuthi zifakwe ngaphambi okanye emva kwe-catalytic converter.

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Zifuna ubushushu ukuze zisebenze ngokuchanekileyo. Tyakhe yiyo loo nto ezinye izihluzi zedizili zedizili zifakwe ngqo emva kwe-turbocharger.

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Uyilo lwe-DPF luqulathe isihluzo senqatha lobusi i-monolith kwaye ifakwe kwiqokobhe lesinyithi njengesixhobo sokuguqulela esiqhagamshelwe.

 

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Sisiva soxinzelelo esahlukileyo esinemibhobho ezayo efakwe kwindawo yokungena kunye nokuphuma kwe-DPF kuya kuyivala le nto kungekudala.. Ezi zixhobo zokucoca zivela kwiintlobo ezininzi.

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Ezi zixhobo zokuhluza zezahlulo ezininzi ezona mathiriyeli zixhaphakileyo zisetyenziswa nge-DPF zizihluzo ze-cordierite zodonga lokuhamba okanye izihluzo ze-silicon carbide eludongeni..Ezinye izinto zinokubandakanya izihluzi zefiber zetsimbi, ukuhamba kwefiber yesinyithi kwizihluzi kunye nezihluzo eziyingxenye.Iinjini zedizili zikaloliwe eziqhelekileyo ezifakelwe i-DPF zifuna i-oyile yothuthu ephantsi.

 

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Injongo ye-DPF kukubambisa amasuntswana adalwe zizo zonke iinjini zedizili,ukubathintela ekungeneni emoyeni. La masuntswana ayingozi kakhulu kwinkqubo yokuphefumla. La masuntswana abanjiswa ziitshaneli ezincinci ezingaphakathi kwedizilipicebo lokucoca.Tamasuntswana okanye uthuthu oluthi luncamathele kwiindonga zemijelo engaphakathi kwi-DPF lutshiswe rhoqo kwinkqubo ebizwa ngokuba kukuhlaziywa kwakhona..

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Uhlaziyo luthintela isihluzo se-diesel particulate ekuvalelekeni. Zintathu iindidi zohlaziyo oluzenzekelayo, oluguqukayo kunye nenkonzo.Uhlaziyo oluzenzekelayo oluzenzekelayo kunye nenkonzo lwenzeka xa i-DPF ifikelela kuma-600 ngokukaCelsius we-1112 degrees Fahrenheit ukuba uhlaziyo oluzenzekelayo alwenzeki.,kwaye i-ECU ibala ukuba i-DPF ifikelele kumthamo wayo wokugcina.

 

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Uhlaziyo oluguquguqukayo luqaliswa uhlaziyo oluguquguqukayo luboniswa xa isibane seDPF sikhanyisa kwiqela lesixhobo.. Isithuthi kufuneka siqhubeke sigqibezela uhlaziyo kude kucime ukukhanya. Ukuba ukuhlaziywa okuguquguqukayo kuphazanyiswa yi-injini yokumiswa,it iyakuqaliswa kwakhona kumjikelo wokuqhuba injini olandelayo ukuba uhlaziyo oluguqukayo luhlala luphazamiseka ngenxa yenani lohambo olufutshane.. Isibane seDPF siya kuqalisa ukudanyaza.

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Isilumkiso se-DPF egungxulwayo siya kubonisa ukuba uhlaziyo lwenkonzo kufuneka lwenziwe ngenkonzo.Ri-e-generations kufuneka iqalwe kusetyenziswa isixhobo sokuskena ngexesha lokuvuselelwa kwenkonzo. EIsibaso se-xtra singongezwa kwisibaso esongezelelweyo singongezwa ngaphambili kwimibhobho ye-post injection pulses. Oku konyusa iqondo lobushushu lerhasi ephumayo idala amaqondo obushushu ashushu ngokugqithisileyo pf malunga nama-600 degrees celcius ye-1112 degree Fahrenheit.. Ke thina ngoku kunye neenxalenye zokutshisa ukuba isilumkiso esidanyazayo se-DPF asihoywa.
Ukuqokelelwa komsizi kunokufikelela kwinqanaba apho ukususwa kwe-DPF ikukuphela konyango olunokwenzeka. Emva kokuba ukuvuselelwa kwenkonzo kwenziwe ukufundwa kwi-sensor yoxinzelelo oluhlukeneyo kuya kugqiba indlela ukuvuselelwa ngayo.
Ungokuqinisekileyo kufuneka kulandele uhlaziyo oluguqukayouhlobo lweukuvuselelwa kwenkonzo ukwenza umjikelo ofanelekileyo wokuqhuba. Ukuba ukuzalwa ngokutsha akunakwenzeka,isihluzo se-diesel particulate kufuneka sitshintshwe.

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Iigesi zokukhupha ezingaphendulwanga zishiya iisilinda ezimbini ezithwele i-particulate kwi-DPF, zidibana neendonga zetshaneli ezincinci kwaye umsizi uvaleleke..Isimangalo sihlala sikwi-DPF de kuqaliswe inkqubo yohlaziyo.

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Ngoku siza kujonga iiparamitha zesixhobo sokuskena se-DPF, ndijonge idatha kuba ndinokukhanya kwe-DPF egungxulwayo kwaye ukuqokelelwa kwe-soot kungaphezulu kwekhulu leepesenti..Ndiza kuqhuba uhlaziyo lwenkonzo kwaye siya kujonga kwipatheni ye-injector usebenzisa i-oscilloscope kule nkonzo yokuhlaziywa kwesixhobo sokuskena ibekwe kwimenyu yemisebenzi ekhethekileyo.. Nje ukuba izinto ezifunekayo zifezekiswe isixhobo sokuskena siya kuqalisa uhlaziyo.
Ipateni iqala ngomqhubi wesibini kunye nenaliti enye engundoqo xa i-revs inyuka, inaliti enye ye-poly iyanyamalala ipateni yokutofa iyavela.. Oku kukufumana i-DPF kubuncinci be-600 degrees Celsius okanye i-1112 degrees Fahrenheit, ubude bexesha buya kwahluka ngokuxhomekeke kwiqondo lobushushu le-DPF kwaye lusenokunyamalala kanye nje ukuba uhlaziyo lwenziwe ngokutsha.sigqityiwe, ipateni eqhelekileyo iya kuvela kwaye isimo esigqityiweyo siya kuvela kwisixhobo sokuskena.
Lo mjikelo usenzeka ngokuphindaphindiweyo, ngelixa uqhuba ukugcina i-DPF ekuvalelekeni kunye neempawu zomba we-DPF engaphumeleliyo inokuba zizibane ezilumkisayo kwisikhewu kunye nokusebenza kakubi kwenjini..

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AI-DPF inokusilela ngokuqhekeka kwezindlu ngexesha lenkqubo yakho yokuhlaziya, ukuba indawo yokugcina igcwele kakhulu okanye i-oyile kunye nokungcolisa okupholileyo.,tUhluzo olubangela ukuvaleka kwayo.Tumnqwazi lulwakhiwo kunye nomsebenzi wesihluzo se-diesel particulate.
Kubaluleke kakhulu ukuqonda ukuba isebenza njani i-DPF ukukunceda xa uxilonga. Ndiyathemba ukuba uya kuyifumana iluncedo.Mandikubobe kwixesha elizayo.


Ixesha lokuposa: Sep-07-2022