Bawul ɗin EGR (bawul ɗin sake zagayowar iskar gas) wani samfuri ne na mechatronic da aka sanya a kan injin dizal don sarrafa adadin sake zagayowar iskar gas da aka mayar zuwa tsarin shiga abinci
Bawul ɗin EGR wani samfuri ne na lantarki da aka sanya a kan injin dizal don sarrafa adadin sake zagayowar iskar shaye-shaye da aka mayar da shi tsarin shigar iska. Yawanci yana nan a gefen dama na bututun shigar iska, kusa da jikin maƙurar iska, kuma ana haɗa shi da shi ta hanyar ƙaramin bututun ƙarfe da ke kaiwa ga bututun fitar iska. Aikinsa shine sarrafa adadin iskar shaye-shaye da ke shiga bututun shigar iska, ta yadda wani adadin iskar shaye-shaye ke kwarara zuwa bututun shigar iska don sake zagayowar iska. Bawul ɗin EGR muhimmin abu ne kuma mai mahimmanci a cikin na'urar sake zagayowar iskar shaye-shaye.
An raba bawul ɗin EGR zuwa nau'i biyu: nau'in injina da nau'in sarrafa lantarki.
Bawul ɗin EGR yana rage zafin ɗakin ƙonawa ta hanyar jagorantar iskar shaye-shaye da aka fitar daga ƙonewar injin zuwa ga madaurin ɗaukar iska don shiga cikin ƙonewa, inganta ingancin aikin injin, inganta yanayin ƙonewa, da rage nauyin da ke kan injin, rage fitar da sinadarai marasa amfani, rage ƙwanƙwasawa, da tsawaita lokacin kowane sashi. tsawon lokacin aiki.
Cikakken sunan shine Exhaust Gas Recirculation, wato, exhaust gas recirculation [1] Ana amfani da tsarin don rage fitar da nitrogen oxides (NOX) a cikin iskar gas. Nitrogen da oxygen suna amsawa ta hanyar sinadarai ne kawai a ƙarƙashin yanayin zafi mai yawa da matsin lamba mai yawa, kuma zafin jiki da matsin lamba a cikin ɗakin konewa na injin sun cika waɗannan yanayi, musamman a lokacin hanzartawa. Lokacin da injin ke aiki a ƙarƙashin kaya, bawul ɗin EGR yana buɗewa, yana barin ƙaramin adadin iskar gas mai fitarwa ya shiga cikin ɗakin konewa tare da cakuda mai ƙonewa. Ana rufe bawul ɗin EGR a lokacin aiki, kuma ƙaramin iskar gas mai fitarwa yana sake juyawa zuwa injin. Iskar gas mai fitarwa ta mota iskar gas ce da ba za ta ƙone ba (ba tare da mai da oxidant) ba wanda ba ya shiga cikin ƙonewa a cikin ɗakin konewa. Yana rage zafin ƙonewa da matsin lamba ta hanyar shan wani ɓangare na zafin da konewa ke samarwa don rage samar da nitrogen oxides. Adadin iskar gas mai fitarwa da ke shiga ɗakin konewa yana ƙaruwa tare da saurin injin da kaya.
Sake zagayowar iskar gas mai shaye-shaye hanya ce da ake shigar da wani ɓangare na iskar gas mai shaye-shaye cikin iska mai kyau (ko cakuda) da ake shaƙa yayin aikin injin, sannan a mayar da shi cikin silinda don sake zagayowar don shiga cikin ƙonewa. Aikinsa shine rage fitar da NOx. NOx iskar gas ce mai matuƙar illa ga jikin ɗan adam, wacce galibi ake samarwa a ƙarƙashin yanayin zafi mai yawa da iskar oxygen. A lokacin aikin injin, idan aka sake shigar da wani ɓangare na iskar gas mai shaye-shaye cikin silinda cikin lokaci da dacewa, saboda babban ɓangaren iskar gas mai shaye-shaye yana da babban ƙarfin zafi, CO2, iskar gas mai shaye-shaye zai iya sha wani ɓangare na zafin da konewa ke samarwa ya fitar da shi daga silinda, kuma yana da tasiri mai kyau akan cakuda. Wani tasirin narkewa, don haka rage matsakaicin zafin jiki da iskar oxygen na konewar injin, ta haka rage samuwar mahaɗan NOx.
Duk da haka, yawan sake zagayowar iskar gas mai fitar da hayaki zai shafi aikin injin na yau da kullun, musamman lokacin da injin ke aiki a saurin aiki, ƙarancin gudu da ƙarancin kaya kuma injin yana aiki a cikin sanyi, kuma lokacin da ake buƙatar ƙarfin injin a cikakken kaya (cikakken matsi), sake zagayowar iskar gas mai fitar da hayaki zai yi tasiri sosai ga aikin injin. Saboda haka, ya kamata a daidaita adadin iskar gas mai fitar da hayaki da ke shiga cikin sake zagayowar iska ta atomatik bisa ga ainihin yanayin aikin injin da canje-canje a yanayin aiki. Aiki ya tabbatar da cewa, bisa ga tsarin injin daban-daban, adadin iskar gas mai fitar da hayaki da ke shiga cikin sake zagayowar iskar gas yawanci ya bambanta tsakanin 6% zuwa 13%.
Domin rage yawan sake zagayowar iskar gas mai fitar da hayaki ba zai yi tasiri sosai ga aikin injin ba, injunan zamani masu sarrafa lantarki suma suna amfani da dabarun sarrafa madauri mai rufewa don sake zagayowar iskar gas mai fitar da hayaki, kuma ana sanya firikwensin matsayin bawul na EGR a bawul ɗin sake zagayowar iskar gas mai fitar da hayaki (wasu samfura kuma suna amfani da firikwensin zafin iskar gas mai fitar da hayaki). ko firikwensin matsin lamba), ana gudanar da sarrafa amsawar gyara mai rufewa na ainihin adadin sake zagayowar iskar gas mai fitar da hayaki. Sararin tafiya na kasuwanci. Tsawon bene daga ƙasa yana da ƙasa, kuma ƙimar amfani da sararin ciki shine mafi girma a cikin samfuran makamancin haka, wanda ya fi 19% girma fiye da na samfuran makamancin haka; babban sarari
Ya dace da yanayi daban-daban, girman ɗakin tsakiyar saman mai tsayi har zuwa 10.2m³
Jikin akwatin murabba'i ne kuma yawan amfaninsa yana da yawa, 15% ya fi sarari fiye da samfuran makamancin haka.
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【Cikakken Tsaro】: Jiki mai ɗauke da kaya tare da tsarin firam ɗin keji mai haɗe
Tsarin ƙirar haɗarin aminci na Turai, manyan sassan jiki an yi su ne da ƙarfe mai ƙarfi sosai, adadin ya kai 50%, kuma kusan 30% ne kawai na samfuran makamancin haka.
Sabuwar tsarin taimakon kwanciyar hankali na Bosch ESP9.1 ya haɗa da ABS, EBD, BAS, RMI, VDC, HBA, TCS da sauran tsarin, waɗanda za su iya sa ido kan yanayinsa a kowane lokaci yayin tuƙi don guje wa zamewa da girgiza gefen abin hawa yayin birki da kuma karkatar da wutsiya don tabbatar da aminci a kusurwa.
Inganci mai girma
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