IMazda iyaqhubeka nophuhliso lwetekhnoloji yeSkyactiv kuzo zombini iibhloko zepetroli kunye nedizili. Fumanisa iyunithi yamva nje ye-1.5 Skyactiv D eza kuqala kwi-Mazda 2 elandelayo.
Emva kwebhloko ye-2.2 Skyactiv D, kukho ngoku umntakwabo omncinci, i-1.5 Skyactiv D, ene-debut yayo ephawulwe nge-Mazda 2 ezayo.
Le njini intsha yakwaMazda enobuchwephesha beSkyactiv sele ifikelela kwimigangatho engqongqo ye-EURO 6, kwaye ikwenza oko ngaphandle kwenkqubo ye-catalysis. Kodwa ukufezekisa ezi ziphumo, iMazda ijongene neengxaki ezininzi ezinciphisa amandla oomatshini beDizili.
Nangona kunjalo, umphumo ofunyenweyo, usebenzisa i-geometry turbocharger eguquguqukayo kunye ne-sensor yokujikeleza edibeneyo, kunye ne-intercooler yamanzi epholileyo, iyanelisa ngokupheleleyo i-brand yaseJapan. Okwesibini, kuya kuphucula ukusebenza kakuhle kunye nokuphendula kwebhloko ye-Diesel ye-1.5. IMazda ikholelwa ukuba izakuba neyona njini yedizili isetyenziswa kancinci kudidi lwayo.
Ibhloko ye-1.5 Skyactiv D izibonakalisa ngokufuduswa kwe-1497cc kunye ne-105 yamandla e-horse kwi-4000rpm, i-torque ephezulu ye-250Nm ibonakala ngokukhawuleza njenge-1500rpm kwaye ihlala ihleli kude kube kufuphi ne-2500rpm, yonke i-CO₂ emissions ye-90g / km nje.
Kodwa ukufikelela kwezi xabiso, yonke into yayingeyonto intle kwaye iMazda ijongene neengxaki ezininzi zobugcisa. Iingxaki ezithe ngokwe-brand zoyiswa, ngokusetyenziswa kobuchwepheshe bamva nje. Kodwa masiye kumacandelo athile, ngeenjongo zokucombulula yonke imiceli-mngeni ethe yathwaxwa yiMazda ukuphuhlisa le njini ye-1.5 Skyactiv D.
Kwakunokwenzeka njani ukoyisa imigangatho yokusingqongileyo enyanzelisayo ngaphandle kwesidingo sonyango lwe-catalytic?
Iibhloko ze-diesel zisebenza ngokubanzi kumazinga oxinzelelo, aphezulu kakhulu kuneebhloko zepetroli. Oku kubangelwa ngokukodwa kokutsha kwe-diesel, okutshatyalaliswayo kuxinzelelo oluphezulu kwaye ayiqhubi njengepetroli, kodwa ibamba umlilo.
Lo mbandela uba yingxaki ngakumbi, kuba ngenxa yemilinganiselo yoxinzelelo oluphezulu, xa i-piston ikwi-TDC yayo (indawo ephezulu efileyo), ukuvutha kudla ukuba kwenzeke phambi komxube opheleleyo kunye nomxube phakathi komoya kunye nofutha, okukhokelela ekubunjweni kweegesi ze-NOx kwaye amasuntswana angcolisa. Ukulibazisa inaliti yamafutha, ngelixa unceda ngeqondo lobushushu kunye noxinzelelo, kubangela uqoqosho olubi kakhulu kwaye ke ukusetyenziswa okuphezulu.
I-Mazda, izazi ezi ngxaki, nangona kunjalo yagqiba ekubeni ibheje ekunciphiseni umlinganiselo wokunyanzeliswa kweebhloko zayo ze-Diesel Skyactiv, kunye ne-compression ratios ye-14.0: 1 - ixabiso eliphantsi elibonakalayo kwibhloko ye-diesel, ekubeni umyinge ujikeleze i-16.0: 1. Ukusebenzisa esi sisombululo, usebenzisa iipistons ezivela kumagumbi athile okutsha, kwakunokwenzeka ukunciphisa ubushushu kunye noxinzelelo kwi-PMS yeesilinda, ngaloo ndlela ulungelelanisa umxube.
Le ngxaki isonjululwe, umba woqoqosho lwamafutha usaza kusonjululwa, ngoko iMazda yabhenela kumlingo we-elektroniki. Ngamanye amazwi, iimephu zokutofa ezine-algorithms ezintsonkothileyo ezikwaziyo ukwenza umxube wangaphambili olungiselelweyo, kwibhloko enezinga eliphantsi loxinzelelo. Ukongeza kwimiphumo enenzuzo ekutshiseni, ukunciphisa umlinganiselo wokunyanzeliswa kwenza kube lula ukunciphisa ubunzima bebhloko, njengoko kuxhomekeke kuxinzelelo oluncinci lwangaphakathi, ngaloo ndlela kuphuculwe ukusetyenziswa kunye nesantya sokuphendula injini.
I-Mazda iyisombulule njani ingxaki yokuqalisa okubandayo kunye nokutshisa okutshisa okuzenzekelayo ngomlinganiselo ophantsi woxinzelelo?
Ezi yayizezinye iingxaki ezimbini eziphantsi komlinganiselo ophantsi woxinzelelo lwebhloko. Ngomlinganiselo ophantsi woxinzelelo, kuba nzima ngakumbi ukwakha uxinzelelo olwaneleyo kunye nobushushu ukuze umbane uvutha. Ngakolunye uhlangothi, xa ibhloko ishushu, i-low compression ratio yenza iindawo zokutshisa ngokuzenzekelayo zibe nzima kwi-ECU ukulawula.
Kwakungenxa yale miba iMazda yagqiba ekubeni ibandakanye kwibhloko ye-1.5 Skyactiv D, ii-injection ze-Piezo zamva nje ezinemibhobho ye-12-hole, evumela iimeko ezahlukeneyo zokutofa kunye neemeko zokusebenza ngamaxesha amafutshane kakhulu, ukulawula ukwenza ubuninzi be-9 ngeenaliti. umjikelo , ukuvumela ukulawula ukuxinwa komxube, ukusombulula ingxaki yokuqalisa okubandayo.
Ukongeza kwiipateni ezi-3 ezisisiseko sokutofa (isitofu sangaphambili, isitofu esiphambili kunye ne-post-injection) ezi zitofu zePiezo zingenza inani leepateni ezahlukeneyo ngokweemeko zomoya kunye nomthwalo wenjini.
Ukuvutha ngokuzenzekelayo kwasonjululwa, ngokusetyenziswa kwexesha levalvu eguquguqukayo. Iivalvu zokukhupha zivula kancinci ngexesha lesigaba sokuthatha, ukuvumela iigesi zokukhupha ziphinde zisetyenziswe kwakhona kwigumbi lokutsha, ukwandisa ubushushu, ngaphandle kokudala iindawo zoxinzelelo, kuba kwiibhloko ze-Diesel ubushushu bunyuka kwigumbi lokutsha. ukuhlawulela ukusetyenziswa kwemilinganiselo yoxinzelelo oluphezulu, oluthi luvelise i-spikes zoxinzelelo ekunzima ukuzilawula.