Inqaku lokufunda le-VGT turbocharger

Ukusetyenziswa kwe-turbocharging kwiinjini zokutsha zangaphakathi kubalulekile ukuze kuhlangatyezwane neemfuno zamva nje zamandla kunye nokukhutshwa kweenjini ezinkulu zedizili kunye negesi.Ukuze kuzuzwe

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Umahluko ofunekayo, i-turbocharger inokuyilwa nokuba ibe neendawo zokudlula kunye namasango enkunkuma, okanye ngeejiyometri zeturbine eziguquguqukayo ngokupheleleyo (VGT).Ukusetyenziswa kwamasango enkunkuma kuyonakalisa ukusebenza kwe-turbocharger kodwa kubonelela ngesisombululo esingabizi kakhulu kwaye esomeleleyo sokwahluka okufunekayo.Iinkqubo eziqhelekileyo zeVGT zifuna inani elikhulu lamacandelo apho umlomo ngamnye ushukunyiswa ngokuzimeleyo ngeringi ye-actuation kwaye ngamanye amaxesha ngengalo ye-lever.

Ngaphandle kobunzima babo, i-VGT turbocharging ibonelela ngeenzuzo ezibalulekileyo xa kuthelekiswa ne-fixed geometry turbocharger ehambelanayo.

nokuba kumthwalo ogcweleyo, ukushiya isikhewu kwizicelo zokulayisha inxalenye, okanye zithelekiswe ngomthwalo ongaphelelanga kwaye zifuna isango lenkunkuma.Ushicilelo luchaza imfuno yokuba nomlomo onokuthi ushenxise i-axially ukulungiselela ubukho beediphozithi kunye nokwandiswa kwe-thermal ukukhusela i-blade ekubambeni.Iinkqubo eziqhelekileyo zeVGT azizange zisetyenziswe ngokubanzi kwizicelo apho amandla aphezulu, ukuthembeka okuphezulu kunye nobomi obude bufuneka ngenxa yeendleko kunye nezizathu ezintsonkothileyo, kwaye ngenxa yesi sizathu uphuhliso oluninzi luye lwakhawulelwa ukufezekisa i-turbocharger yeVGT ngoyilo olulula kunye namacandelo ahamba kancinci. .

Lo msebenzi uphakamisa ingqikelelo entsha ye-geometry turbocharger nozzle enokuthi isetyenziswe kuqwalaselo lwe-axial kunye ne-radial turbocharger.Ingcinga inikezela ngokuncipha okubonakalayo kumacandelo ashukumayo kwaye ke ngoko inamandla okunciphisa iindleko ze-turbocharger kunye nokwandisa ukuthembeka kwayo xa kuthelekiswa noyilo lweVGT oluqhelekileyo.Ingqikelelo ibandakanya umlomo oyintloko kunye nombhobho wetandem.Nganye yale mibhobho iyindandatho enenani elifunekayo leevane.Ngokukhupha umbhobho omnye ngokubhekiselele komnye, kunokwenzeka ukuguqula i-angle yokuphuma kwe-engile ye-nozzle, kwaye uguqule indawo yomqala ngendlela eyahluka ngayo ukuhamba kobunzima obudlula kwi-nozzle.

Isalathiso

P. Jacoby, H. Xu kunye no-D. Wang, "i-VTG Turbocharging - ingcamango exabisekileyo yokusetyenziswa kwe-traction," kwi-CIMAC Paper No. 116, Shangai, China, 2013.


Ixesha lokuposa: Jun-07-2022

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