Kuchuluka Kwambiri: Ikagwedezeka, mabuleki ndi kudontha ...
Zamkatimu
Masiku ano, kupereka injini ndi mpweya kwakhala sayansi yeniyeni. Kumene chitoliro cholowetsa chokhala ndi fyuluta ya mpweya inali yokwanira kale, lero gulu lovuta la zigawo zambiri zimagwiritsidwa ntchito. Pankhani ya kadyedwe kolakwika, izi zimatha kuwonekera makamaka chifukwa cha kuchepa kwa magwiridwe antchito, kuipitsidwa kwakukulu, kuchucha kwamafuta.
chifukwa chachikulu chisokonezo choterocho dongosolo lamakono loyang'anira injini yokhala ndi makina otulutsa gasi pambuyo pake . Ma injini amakono amaperekedwa ndi mpweya kudzera m'njira zosiyanasiyana ( mawu ena ndi "inlet chamber" ). Koma pamene zovuta zamakono zikuchulukirachulukira, momwemonso chiwopsezo cha zolakwika zimakula.
kupanga zochulukirachulukira
Zomwe zimapangidwira zimakhala ndi aluminiyamu yopangidwa ndi tubular kapena chitsulo chotuwa . Kutengera kuchuluka kwa masilindala, mapaipi anayi kapena asanu ndi limodzi amaphatikizidwa muzochulukira. Amasonkhana pakatikati pa madzi omwe amamwa.
Pali zowonjezera zowonjezera pazakudya zambiri:
| - Chinthu chowotcha: chomwe chimagwiritsidwa ntchito kutenthetsa mpweya wolowa. - Zowongolera ma swirl dampers: zimawonjezeranso mpweya. - Tengani ma gaskets angapo - Cholumikizira valavu cha EGR |
Kupatuka: Ma nitrogen oxide ochokera ku mipweya yotulutsa mpweya
| Zowononga zimapangidwa pamene mafuta monga petulo, dizilo kapena gasi wachilengedwe wawotchedwa. Koma si carbon monoxide, carbon dioxide, kapena mwaye amene amayambitsa vuto lalikulu. . Choyambitsa chachikulu chimapangidwa mwangozi pakuyaka mu injini: otchedwa nitrogen oxides amadziwika kuti ndiwo amayambitsa kuwonongeka kwa mpweya ... koma nayitrogeni oxides nthawi zonse amapangidwa pamene chinachake chatenthedwa ndi mpweya mu mpweya. Mpweya ndi 20% yokha ya okosijeni . Mpweya wambiri umene timapuma ndi nayitrojeni. Mpweya wozungulira 70% umapangidwa ndi nayitrogeni.. Tsoka ilo, mpweya uwu, womwe umakhala wovuta kwambiri komanso wosayaka, umaphatikizana ndi zovuta kwambiri m'zipinda zoyaka moto za injini kupanga mamolekyu osiyanasiyana: NO, NO2, NO3, etc. - otchedwa "nitrogen oxides" . amene amasonkhana pamodzi kupanga gulu NOx .Koma chifukwa chakuti nayitrojeni ndi amene amaloŵerera m’thupi, amataya msanga maatomu ake a okosijeni. . Kenako amakhala otchedwa " ma free radicals zomwe zimakwiyitsa chilichonse chomwe amakumana nacho. Ngati atakowetsedwa, amawononga minofu ya m'mapapo, yomwe ikafika poipa kwambiri, imatha kuyambitsa khansa. Kuti muchepetse kuchuluka kwa ma nitrogen oxides muzakudya zambiri, valavu ya EGR imagwiritsidwa ntchito. |
Vuto la valve EGR
Valavu ya EGR imagwiritsidwa ntchito kubwezera mpweya woyaka kale kuchipinda choyaka . Kuti muchite izi, mpweya wotulutsa mpweya umadyetsedwa kudzera muzolowera. Injini imayamwa mpweya wotulutsa mpweya womwe watenthedwa kale ndikuwotchanso. Izi sizikhudza magwiridwe antchito a injini. . Komabe, njirayi imachepetsa kutentha kwa njira yoyaka. Kutsika kwa kutentha mu chipinda choyaka moto, ma nitrogen oxides ochepa amapangidwa.
Komabe, pali kupha kumodzi. Tinthu tating'onoting'ono tochokera ku mpweya wotulutsa mpweya sizimayikidwa mu valavu ya EGR yokha. Amatsekanso pang'onopang'ono kuchuluka kwa madyedwe onse. Izi zingayambitse kutsekeka kwathunthu kwa mzere. . Pambuyo pake, galimotoyo imasiya kulandira mpweya ndipo sichikhoza kuyendetsedwa.
kukonza zambiri
Kuwonongeka kwapang'onopang'ono chifukwa cha ma depositi opopera ndiye chifukwa chofala kwambiri cha kulephereka kwa kudya. . Mpaka posachedwa, chigawo chonsecho chinangosinthidwa, koma nthawi zonse ndalama zazikulu .
Pakadali pano , komabe, pali othandizira ambiri omwe amapereka kudya kokwanira .
| Pali njira zingapo zochitira izi: Ena opereka chithandizo amawotcha kuchuluka kwake ndi okosijeni wangwiro kapena mpweya woponderezedwa. Ena amadalira mankhwala amene mpweya wolimba umasungunuka kuchokera ku mwaye mu asidi. Othandizirawa nthawi zambiri amapereka "zachikale kuti apangidwenso" m'malo mwake kapena kumanganso zomwe amadya mochuluka. Kuchulukitsa kwatsopano kumawononga kulikonse kuchokera pa £150 mpaka kupitilira £1000. Kukonza nthawi zambiri kumawononga ndalama zosakwana 1/4 mtengo wazomwe mumadya. |
Chinyengo, komabe, chili mwatsatanetsatane: Kuchotsa kuchuluka kwa madyedwe kumafuna chidziwitso, luso loyenera, ndi zida zoyenera. Ngati manifold olowa awonongeka pakuchotsedwa, amatha kusinthidwa ndi gawo latsopano.
Kuyeretsa zochulukirapo nthawi zonse kumaphatikizapo kukonza valavu ya EGR.
Vuto ndi ma swirl flaps
Nthawi zambiri amadya amakhala ndi swirl flaps ... izo zotchingira zing'onozing'ono zopangidwa ndi pulasitiki yosagwira kutentha . Amachita zambiri kuposa kungotsegula ndi kutseka madoko olowera amitundu yambiri. Amapereka swirl, yomwe, koposa zonse, iyenera kuwongolera kuyaka mu injini. . Komabe, vuto la vortex dampers ndiloti iwo amakonda kusweka ndiyeno kugwera mu bay injini .
Ngati muli ndi mwayi , pisitoni idzaphwanya damper ya pulasitiki ndikuyichotsa ndi mpweya wotuluka. Koma ngakhale mu nkhani iyi, mbali zake kulowa chothandizira Converter posachedwapa. Ngati mulibe mwayi, damper yosweka imatha kuwononga injini ngakhale kale.
Chifukwa chake, malangizo athu ndi awa: Dziwani ngati zida zotsalira zilipo pagalimoto yanu.
Mwachitsanzo, amapezeka kwa ambiri BMW injini. Mu kit, zomangira zosunthika zimasinthidwa ndi zofunda zolimba. Zotsatira zake zimakhala zoipitsitsa pang'ono, koma mumapeza kudalirika kwakukulu kogwira ntchito. Zophimba sizingatuluke ndikugwera m'chipinda cha injini. Chifukwa chake, mumatetezedwa modalirika ku zodabwitsa zosasangalatsa.
