Ngophuhliso oluqhubekayo lwenkqubo yoshishino lwaseTshayina, isalathisi songcoliseko lomoya sele siqalisile ukunyuka, kwaye kungxamisekile ukuphucula ukungcoliseka kwendalo.Ukusabela kolu luhlu lweengxaki, urhulumente wase-China uqalise ngoko nangoko imigaqo-nkqubo emininzi efanelekileyo yokukhutshwa kwe-injini ye-diesel.Phakathi kwazo, iinjini zedizili ezinoxinzelelo oluphezulu kunye ne-National III kunye ne-Euro III ekhutshwayo kwimarike yeeseti yejenereyitha ziya zithandwa ngakumbi kwimarike.
I-injini ye-diesel ye-high-pressure yesiqhelo ibhekiselele kwinkqubo yokubonelela ngamafutha eyahlula ngokupheleleyo isizukulwana soxinzelelo lwe-injection kunye nenkqubo yokutofa kwinkqubo evaliweyo ehlanganiswe nempompo ye-fuel-pressure, inzwa yoxinzelelo kunye neyunithi yokulawula i-electronic (ECU) .Iinjini zedizili ezilawulwa nge-elektroniki azisayi kuthembela kubunzulu be-throttle yomqhubi ukulawula umthamo wokutofa kwamafutha wempompo yomatshini, kodwa uxhomekeke kwi-injini ye-ECU ukucubungula ulwazi lomatshini wonke.I-ECU iya kubeka iliso kwimeko yexesha langempela le-injini ngexesha langempela kwaye ilungelelanise inaliti yamafutha ngokwendawo ye-pedal ye-accelerator.Ixesha kunye nomthamo wokutofa kwamafutha.Namhlanje, ii-injini zedizili zisetyenziswa ngokubanzi kwisizukulwana sesithathu “solawulo loxinzelelo lwexesha” inkqubo yokutofa kwepetroli, oko kukuthi, kaloliwe ocinezela kakhulu.
Izibonelelo zeenjini zedizili ezinoxinzelelo oluphezulu kusetyenziso oluphantsi lwamafutha, ukuthembeka okuphezulu, ubomi obude, kunye netorque ephezulu.Iinjini zedizili ezinomzila kaloliwe oqhelekileyo zikhupha iigesi eziyingozi kakhulu kuneenjini ezingenawo umzila kaloliwe oqhelekileyo (ingakumbi iCO), ngoko ke zinobuhlobo nokusingqongileyo xa kuthelekiswa neenjini zepetroli.
Ukungalungi koxinzelelo oluphezulu lweenjini zedizili zikaloliwe zibandakanya iindleko eziphezulu zokuvelisa kunye nokugcinwa (amaxabiso), ingxolo ephezulu, kunye nobunzima bokuqalisa.Ukuba i-injini isebenza ixesha elide, ubushushu be-injini kunye noxinzelelo luphezulu, kwaye i-soot ne-coke eninzi iya kuveliswa kwi-cylinders, kwaye i-oyile ye-injini iyakwazi ukuba ne-oxidation ukuze ivelise iintsini.Ke ngoko, i-oyile ye-injini ye-diesel ifuna ukucocwa kobushushu obuphezulu.
Ixesha lokuposa: Nov-16-2021
