Ngenxa yophuhliso oluqhubekayo lwenkqubo yophuhliso lwemizi-mveliso yaseTshayina, isalathisi songcoliseko lomoya siqalile ukunyuka, kwaye kungxamisekile ukuphucula ungcoliseko lokusingqongileyo. Ukuphendula olu luhlu lweengxaki, urhulumente waseTshayina uye wazisa ngoko nangoko imigaqo-nkqubo emininzi efanelekileyo yokukhupha ungcoliseko lweenjini zedizili. Phakathi kwazo, iinjini zedizili zikaloliwe ezixineneyo ezinoxinzelelo oluphezulu kunye nokukhupha ungcoliseko lweSizwe III kunye ne-Euro III kwimarike yeseti yejenereyitha yedizili ziya zithandwa ngakumbi kwimarike.
Injini yedizili yesitimela esinoxinzelelo oluphezulu ibhekisa kwinkqubo yokubonelela ngepetroli eyahlula ngokupheleleyo ukuveliswa koxinzelelo lwe-injection kunye nenkqubo yokufakwa kwinkqubo evaliweyo eyenziwe yipompo yepetroli enoxinzelelo oluphezulu, isenzi soxinzelelo kunye neyunithi yolawulo lwe-elektroniki (ECU). Iinjini zedizili ezilawulwa ngombane azisaxhomekeki kubunzulu be-throttle yomqhubi ukulawula umthamo we-injection ye-fuel pump ye-mechanical, kodwa zixhomekeke kwi-ECU yenjini ukucubungula ulwazi lomatshini wonke. I-ECU iya kujonga imeko ye-injini ngexesha langempela kwaye ilungise i-injection yepetroli ngokwendawo ye-accelerator pedal. Ixesha kunye nomthamo we-injection yepetroli. Kule mihla, iinjini zedizili zisetyenziswa kakhulu kwinkqubo ye-injection ye-fuel yesizukulwana sesithathu "yolawulo loxinzelelo lwexesha", oko kukuthi, i-injection ye-common enoxinzelelo oluphezulu.
Iingenelo zeenjini zedizili ze-common rail ezinoxinzelelo oluphezulu kukusetyenziswa kwepetroli okuphantsi, ukuthembeka okuphezulu, ubomi obude, kunye ne-torque ephezulu. Iinjini zedizili ezine-common rail zikhupha iigesi ezinobungozi obuncinci kuneenjini ezingenayo i-common rail (ingakumbi i-CO encinci), ngoko ke zinobuhlobo nokusingqongileyo xa zithelekiswa neenjini zepetroli.
Iingxaki zeenjini zedizili zesitimela ezixineneyo ezinoxinzelelo oluphezulu ziquka iindleko eziphezulu zokuvelisa nokugcina (amaxabiso), ingxolo ephezulu, kunye nobunzima bokuqalisa. Ukuba injini isebenza ixesha elide, ubushushu benjini kunye noxinzelelo luphezulu, kwaye i-soot kunye ne-coke eninzi ziya kuveliswa kwiisilinda, kwaye ioyile yenjini nayo isengozini yokubola ukuze ivelise iintsini. Ke ngoko, ioyile yenjini yedizili ifuna ukucoca ubushushu obuphezulu.
Ixesha lokuthumela: Novemba-16-2021









