Emva kokuba i-Dieselgate igubungele ngokuqinisekileyo ii-Diesel kwilifu elimnyama - sithi "ngokuqinisekileyo", kuba eneneni, isiphelo sayo sasisele sixoxwe ngokuthozama ngaphambili - ngoku kufuneka indawo efanelekileyo. Uthanda okanye awuthandi, inyani yeyokuba iinjini zedizili zazikho kwaye ziyaqhubeka nokuba lukhetho uninzi lwabathengi. Kwaye hayi, akukho ePortugal kuphela… Thatha lo mzekelo.
Bambelela: uyafunwa!
Kuya kuthatha ixesha ngaphambi kokuba umbane ube "yinto eqhelekileyo" kwishishini leemoto - kuqikelelwa ukuba kwi-2025 isabelo se-100% yezithuthi zombane sisajikeleza i-10%, ayikho kakhulu.Ngoko ke, de kufike le "eqhelekileyo" entsha, isisombululo esifunekayo esinika uqoqosho lokusetyenziswa kunye nenqanaba lokukhutshwa kwe-Diesel ngexabiso lokuthenga iinjini zepetroli.
Yeyiphi enye indlela le?
Okumangalisayo kukuba, yiVolkswagen, uphawu olwalusesona siqalo senyikima ekhutshwayo, esiza nenye indlela yeDiesel. Ngokutsho kwe-brand yaseJamani, enye inokuba yinjini yakho entsha yomjikelo we-B. Ngaloo ndlela ukongeza olunye uhlobo lomjikelo kwezo sele zikhona kwiinjini zepetroli: Otto, Atkinson and Miller.
Imijikelo kunye nemijikelo emininzi
Eyona nto yaziwayo ngumjikelo we-Otto, esona sicombululo siphinda-phinda kwishishini leemoto. Imijikelezo ye-Atkinson kunye neMiller ibonakalisa ukuba isebenza kakuhle kwiindleko zomsebenzi othile.
Inzuzo (ngokusebenza) kunye nelahleko (kwintsebenzo) ngenxa yexesha lokuvula i-valve yokungena kwisigaba soxinzelelo. Eli xesha lokuvula libangela isigaba soxinzelelo esifutshane kunesigaba sokwandisa.
Inxalenye yomthwalo kwisigaba sokunyanzeliswa ikhutshwe yi-valve yokungena evulekileyo. I-piston ngaloo ndlela ifumana ukuxhathisa okungaphantsi koxinzelelo lweegesi - isizathu sokuba i-efficient ethile iphantsi, oko kukuthi, iphumela kwi-horsepower encinci kunye ne-Nm. Oku kulapho umjikelezo weMiller, owaziwa ngokuba yi-injini ye-"five-stroke"; ingena. Xa ibhenela kwi-supercharging, ibuyisela le ntlawulo ilahlekileyo kwigumbi lokutsha.
Namhlanje, ngenxa yolawulo olukhulayo lwenkqubo yonke yokutsha, iinjini zomjikelo we-Otto sele zikwazi ukulinganisa imijikelo ye-Atkinson xa imithwalo iphantsi (ngaloo ndlela inyusa ukusebenza kwayo).
Ke usebenza njani umjikelo B?
Ngokusisiseko, umjikelo B kukuvela komjikelo weMiller. Umjikelo weMiller uvala iivalve zokungena ngaphambi nje kokuphela kwestroke. Umjikelo we-B uyahluka kumjikelo weMiller kuba uvala iivalvu zokungena ngaphambili kakhulu. Isiphumo siside, ukutsha okusebenzayo ngakumbi kunye nokuhamba komoya ngokukhawuleza kwiigesi ezithathayo, eziphucula umxube wamafutha / umoya.
Enye yeenzuzo zalo mjikelo omtsha we-B ukukwazi ukutshintshela kumjikelo we-Otto xa kufuneka amandla aphezulu, abuyele kwi-B-cycle esebenzayo ngexesha leemeko zokusetyenziswa eziqhelekileyo. Oku kunokwenzeka kuphela ngokubonga kwi-axial displacement ye-camshaft-eneekhamera ezimbini kwi-valve nganye-evumela ukuba amaxesha okuvulwa kwee-valve zokungena ukuba atshintshwe kumjikelo ngamnye.
Indawo yokuqala
I-injini ye-EA888 yayiyindawo yokuqala kwesi sisombululo. Esele isaziwa kwezinye izicelo kwiqela laseJamani, yi-injini ye-2.0 l turbo enezisilinda ezine emgceni. Le injini yalungiswa ikakhulu kwinqanaba lentloko (ifumene i-camshafts entsha kunye neevalvu) ukuba isebenze ngokweparameters zalo mjikelo omtsha. Olu tshintsho lukwanyanzelise ukuhlengahlengiswa kweepistons, iisegmenti kunye negumbi lokutshisa.Ukuze kuhlawulwe inqanaba elifutshane loxinzelelo, iVolkswagen inyuse umlinganiselo woxinzelelo kwi-11.7: 1, ixabiso elingazange libonwe ngaphambili kwi-injini ephezulu, ethethelela ukomelezwa kwamanye amacandelo. Nkqu EA888 ekhoyo ayidluli 9.6:1. Isitofu esithe ngqo sikwabone ukwanda koxinzelelo, ngoku lufikelela kwi-250 bar.
Njengenguquko ye-EA888, isizukulwana sesithathu sale njini yosapho ichongwa njenge EA888 Gen. 3B.
masiye kumanani
I-EA888 B igcina zonke iisilinda ezine emgceni kunye ne-2.0 l yomthamo, kunye nokusetyenziswa kwe-turbo. Ihambisa malunga ne-184 hp phakathi kwe-4400 kunye ne-6000 rpm kunye ne-300 Nm yetorque phakathi kwe-1600 kunye ne-3940 rpm. . Le njini izakuqale ijonge ekuthatheni indawo ye-1.8 TSI exhobisa uninzi lweemodeli zohlobo lwaseJamani ezithengiswa kwimarike yaseMntla Melika.
Ukuthotywa kwempumelelo enkulu? Okanye ukumbona.
Kuya kuba yinto entsha Volkswagen Tiguan yaqala injini entsha e-USA. Ngokutsho kwe-brand, i-2.0 entsha iya kuvumela ukusebenza kakuhle kunye nokusetyenziswa okuphantsi kunye nokukhutshwa kokuthelekiswa ne-1.8 eyeka ukusebenza.
Okwangoku, akukho datha esemthethweni malunga nokusetyenziswa. Kodwa uphawu luqikelela ukuncipha kokusetyenziswa malunga ne-8%, inani elinokuphuculwa kakhulu ngophuhliso lwalo mjikelo omtsha we-B.