Da Egr bawul
Bala'i na Egr shine samfurin Mechatronic akan injin din Diesel don sarrafa adadin mai gas da ke ciyar da tsarin cigaba. Yana yawanci a gefen dama na hadin gwiwa mai yawa, kusa da jikin farin ciki, kuma yana da alaƙa da shi ta wani ɗan gajeren bututun ƙarfe wanda ke kaiwa zuwa ga hauhawar ƙasa. Ayyukanta shine don sarrafa adadin gas ɗin yana shiga da tsinkaye mai yawa, saboda haka wani adadin gas yana gudana zuwa cikin haduwa mai yawa don recirculation. Bala'i na EGR babban abu ne mai mahimmanci a cikin na'urar reshing mai gas.
An raba bawul na Egr zuwa nau'ikan biyu: Nau'in injiniya da nau'in sarrafa lantarki.
Bala'i na EGR yana rage zafin jiki na ɗaruriyar ƙage daga injin ɗin, yana haɓaka nauyi a kan injin, haɓaka lokacin kowane ɓangare. Rayuwar sabis.
Cikakken suna yana da isasshen iskar gas, wato, an yi amfani da tsarin gas don rage yawan ɗigo na oitrogen (Nex) a cikin gas mai shayarwa. Nitrogen da oxygen da aka ba da amsa kimanin zazzabi da yanayi mai yawa, da zazzabi da matsin lamba a cikin dakin hada-hada, musamman a lokacin tilasta tilasta hanzarta. Lokacin da injin din ke gudana a ƙarƙashin kaya, kumburin Egr bawul ya buɗe, yana ba da karamin adadin gas don shiga cikin haduwa mai yawa kuma cikin kujerar konewa tare da cakuda mai haɗawa. An rufe bawul na EGR a rago, kuma an girka gas mai iska a cikin injin. Gas din mota mai guba shine gas mai gina jiki (ba tare da mai da oxidant ba) wanda ba ya shiga cikin kwamiti a cikin ɗakin ƙawance. Yana rage yawan zafin jiki da matsin lamba ta hanyar ɗaukar wani ɓangare na zafin da aka samar don rage ohides oxides. Yawan gas mai shayarwa yana shigar da ɗakin haɓakawa tare da saurin injin da kaya
Ruwan gas mai shayarwa shine hanya wacce aka gabatar da wani bangare na gas na iska (ko cakuda) yayin aiwatar da silinikin injin din, ya dawo siliki don shiga cikin gaba. Aikinsa shine rage zubar da Nox. Nox mai cutarwa ne mai cutarwa ga jikin mutum, wanda yafi asali a karkashin babban zazzabi da yanayin oxygen. A yayin aikin aiki na injin, idan wani sashi na gas mai shayarwa yana sake ginawa cikin siliki a cikin yanayi da kyau, saboda babban bangaren gas da ya haifar da babban lokacin zafi, kuma yana da tasiri mai kyau a kan cakuda. Wani muhimmin tasirin, saboda haka rage matsakaicin zafin jiki da oxygen na aikin injiniya, don haka rage samuwar Nox mahadi.
Koyaya, reshen gas mai yawa na gas zai shafi aikin injin, musamman lokacin da injin ɗin yana gudana a cikin wani yanki mai sanyi, kuma lokacin da gas ɗin yana gudana a cikin cikakken nauyin da injin din. Sabili da haka, adadin iskar gas ta halartar recirculation ya kamata a daidaita ta atomatik bisa ainihin yanayin aiki na injin da canje-canje a yanayin aiki. Aiki ya tabbatar da cewa, gwargwadon tsarin injiniyoyi daban-daban, adadin iskar shayewa da hannu a cikin recirbulation gaba daya ya bambanta tsakanin 6% da 13%.
Don yin adadin mai amfani da gas ɗin da ba ku da tasiri mai yawa akan aikin injin din mai cike da iskar gas, da wasu samfuran kuma suna amfani da na'urorin gas na gas na gas). ko firstor na matsin lamba), da kulle-madauki mai gyara yana sarrafa madaidaitan adadin mai amfani da gas. Tsawon ƙasa daga ƙasa ya ƙasa, kuma yawan adadin sararin ciki shine mafi girma tsakanin samfuran iri ɗaya, wanda ya fi na irin waɗannan samfuran; babban sarari
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