Ukusetshenziswa kwe-turbocharging ezinjinini ezivuthayo zangaphakathi kubalulekile ukuze kuhlangatshezwane nezidingo zakamuva zamandla nezimo ezikhishwayo zezinjini ezinkulu zikadizili negesi. Ukuze kuzuzwe
ukushintshashintsha okudingekayo, i-turbocharger ingaklanywa ibe nama-by-pass kanye namasango alahlwayo, noma ngamajiyometri enjini eshintshashintshayo (VGT). Ukusetshenziswa kwamasango kadoti kuyingozi ekusebenzeni kwe-turbocharger kodwa kunikeza isisombululo esingabizi nesiqinile sokuhlukahluka okudingekayo. Amasistimu avamile we-VGT adinga inani elikhulu lezingxenye lapho umlomo wombhobho ngamunye unyakaziswa khona ngokuzimela yindandatho yokuqalisa futhi ngezinye izikhathi ngengalo yokugenca.
Naphezu kobunzima bayo, i-VGT turbocharging inikeza izinzuzo ezibalulekile uma kuqhathaniswa ne-fixed geometry turbocharger efaniswe.
kungaba ukulayisha okugcwele, okushiya igebe engxenyeni yezinhlelo zokusebenza zokulayisha, noma kufaniswe ekulayisheni okuyingxenye futhi edinga isango likadoti. Ukushicilelwa kuchaza imfuneko yokuba nombhobho ongagudluza i-axially ukuze uvumelane nokuba khona kwamadiphozithi kanye nokunwetshwa okushisayo ukuze kuvinjelwe i-blade ukuthi ingabambeki. Izinhlelo ezivamile ze-VGT azizange zisetshenziswe kakhulu ezinhlelweni zokusebenza lapho amandla aphezulu, ukwethembeka okuphezulu nokuphila isikhathi eside kudingeka ngenxa yezizathu zezindleko nokuba yinkimbinkimbi, futhi ngenxa yalesi sizathu kuye kwacatshangwa intuthuko eminingana ukuze kuzuzwe i-turbocharger ye-VGT enomklamo olula kanye nezingxenye ezihamba kancane. .
Lo msebenzi uphakamisa umqondo omusha wenozzle ye-geometry turbocharger engasetshenziswa ekucushweni kwe-axial ne-radial turbocharger. Umqondo unikeza ukuncipha okukhulu kwezingxenye ezihambayo ngakho-ke unamandla okunciphisa izindleko ze-turbocharger nokwandisa ukwethembeka kwayo uma kuqhathaniswa nemiklamo ye-VGT evamile. Umqondo uqukethe i-nozzle eyinhloko kanye ne-tandem nozzle. Ngayinye yale mibhobho iyindandatho enenombolo edingekayo yamavanes. Ngokukhipha umbhobho owodwa ngokuhlonipha omunye, kuyenzeka ulungise i-engeli yokuphuma yokugeleza yomlomo, futhi ulungise indawo yomphimbo ngendlela okungenziwa ngayo ukuhlukahluka kokugeleza kwesisindo okudlula ku-nozzle.
Ireferensi
P. Jacoby, H. Xu kanye no-D. Wang, "VTG Turbocharging – umqondo otholakalayo wohlelo lokudonsa," ku-CIMAC Paper No. 116, Shangai, China, 2013.
Isikhathi sokuthumela: Jun-07-2022