Ukusetshenziswa kwe-turbocharging kwizinjini zangaphakathi zokuvutha kubalulekile ukuhlangabezana namandla wakamuva kanye nezidingo zokuphuma kwezinjini ezinkulu zedizili kanye negesi. Ukuze uzuze
Ukuhluka okudingekayo, i-turbocharger ingaklanywa ngokudlula noma ngokudlula kwamasango, noma nge-geometries eguquguqukayo ngokuphelele (VGT). Ukusetshenziswa kwamasango okungcola kulimaza ukusebenza kwe-turbocharger kepha kunikeza isixazululo esibizayo nesinamandla sokuhluka okudingekayo. Izinhlelo ezijwayelekile ze-VGT zidinga inani elikhulu lezakhi lapho i-nozzle ngayinye ihanjiswa khona ngokuzimela ngendandatho yokusebenza futhi kwesinye isikhathi ngengalo ye-lever.
Naphezu kobunzima babo, i-vgt turbocharging inikezela ngezinzuzo ezibalulekile uma kuqhathaniswa ne-geometry turbocharger engaguquki
Kubanye ukuthwala okugcwele, kushiya igebe ekusetshenzisweni kwengxenye yomthwalo, noma kufaniswe nomthwalo ohlukile futhi kudinga isango lemfucuza. Ukushicilelwa kuchaza isidingo sokuba ne-nozzle engakuthola ngokuxandekile ukuzokwamukela ubukhona bamadiphozithi kanye nokunwebeka okushisayo ukuvikela ibala ekubambeni. Conventional VGT systems have not been extensively applied to applications where high power, high reliability and long life are required due to cost and complexity reasons, and for this reason several developments have been conceived to achieve a VGT turbocharger with a simpler design and less moving components.
Lo msebenzi uhlongoza umqondo omusha we-geometry geometry turbocharger nozzle engasetshenziswa ekucushweni kwe-axial kanye ne-radial turbocharger. Umqondo unikeza ukuncishiswa okukhulu ezingxenyeni ezihambayo ngakho-ke unamandla okunciphisa izindleko ze-turbocharger futhi andise ukuthembeka kwawo kuqhathaniswa nemiklamo ye-VGT ejwayelekile. Umqondo uqukethe i-nozzle eyinhloko ne-tandem nozzle. Ngayinye yalezi zinzzles iyindandatho enenombolo edingekayo yenqolobane. Ngokususa i-nozzle eyodwa maqondana nomunye, kungenzeka ukuguqula i-angle yokuphuma ephumayo ye-nozzle, futhi uguqule indawo yomphimbo ngendlela yokuguquguquka kokugeleza kwesisindo okudlula kuyo i-nozzle.
Inkomba
P. Jacoby, H. XU no D. Wang, "vtg turbocharging - Umqondo ovuselelayo wohlelo lokusebenza lweTraction," e Cimac Paper No. 116, SHANAI, China, 2013.
Isikhathi sePosi: Jun-07-2022