Nyuma ya Dieselgate itwikiriye neza Diesels mu gicu cyijimye - tuvuga "byanze bikunze", kuko mubyukuri, iherezo ryayo ryari ryaganiriweho mu buryo bworoheje mbere - ubu harakenewe umusimbura ukwiye. Nkunda cyangwa itabishaka, ukuri nuko moteri ya mazutu yariho kandi ikomeza kuba amahitamo yabaguzi benshi. Kandi oya, ntabwo ari muri Porutugali gusa… Fata uru rugero.
Umusimbuye: ashakishwa!
Bizaba igihe mbere yuko amashanyarazi ahinduka "ibisanzwe" inganda zimodoka - byagereranijwe ko muri 2025 umugabane wibinyabiziga byamashanyarazi 100% bikiri hafi 10%, ntabwo aribyinshi.Kubwibyo, kugeza igihe iyi "isanzwe" igeze, harakenewe igisubizo gitanga ubukungu bwimikoreshereze nurwego rwohereza imyuka ya Diesel mugiciro cyo kugura moteri ya lisansi.
Ni ubuhe buryo bundi?
Igitangaje, ni Volkswagen, ikirango cyari ku cyicaro gikuru cy’umutingito uva mu kirere, uzana ubundi buryo bwa Diesel. Ukurikije ikirango cy'Ubudage, ubundi buryo bushobora kuba moteri yawe B-cycle. Gutyo rero wongeyeho ubwoko bumwe bwikiziga kubisanzwe muri moteri ya lisansi: Otto, Atkinson na Miller.
Inzinguzingo nizindi nyinshi
Ikizwi cyane ni Otto cycle, igisubizo gikunze kugaragara mubikorwa byimodoka. Inzinguzingu ya Atkinson na Miller yerekana ko ikora neza hashyizweho imikorere yihariye.
Inyungu (mubikorwa) hamwe nigihombo (mumikorere) bitewe nigihe cyo gufungura valve yinjira mugice cyo kwikuramo. Iki gihe cyo gufungura gitera compression icyiciro kigufi kuruta kwaguka.
Igice cyumutwaro mugice cyo guhunika birukanwa na inlet valve ikinguye. Piston rero isanga kutarwanya imbaraga zo guhagarika imyuka - impamvu ituma imikorere yihariye iba mike, ni ukuvuga ko bivamo imbaraga nke zamafarasi na Nm.Aha niho Miller cycle, izwi kandi nka moteri ya «bitanu-bitanu», iraza. iyo, iyo yitabaje ibirenze, isubiza amafaranga yatakaye mubyumba byo gutwika.
Uyu munsi, tubikesha kwiyongera kugenzura uburyo bwose bwo gutwika, ndetse na moteri ya Otto cycle irashobora kwigana inzinguzingu ya Atkinson mugihe imizigo iba mike (bityo bikongera imikorere yabo).
None se cycle B ikora ite?
Mubusanzwe, cycle B ni ihindagurika ryumuzingi wa Miller. Umuzenguruko wa Miller ufunga indangagaciro zo gufata mbere yo kurangiza gufata. Umuzenguruko wa B utandukanye na Miller cycle kuko ifunga inva yinjira mbere. Igisubizo ni kirekire, gutwika neza kimwe no guhumeka byihuse kuri gaze yo gufata, biteza imbere amavuta / umwuka.
Imwe mu nyungu ziyi B-cycle nshya ni ugushobora guhinduka kuri Otto cycle mugihe imbaraga nyinshi zikenewe, ugasubira muri B-cycle ikora neza mugihe gikoreshwa bisanzwe. Ibi birashoboka gusa kuberako kwimurwa rya axial ya camshaft - ifite cams ebyiri kuri buri valve - kwemerera ibihe byo gufungura inva zinjira kugirango zihindurwe kuri buri cyiciro.
Intangiriro
Moteri ya EA888 niyo yatangiriye iki gisubizo. Bimaze kumenyekana mubindi bikorwa mumatsinda yubudage, ni moteri ya 2.0 l turbo ifite silindari enye kumurongo. Iyi moteri yahinduwe cyane cyane kurwego rwumutwe (yakiriye amashusho mashya na valve) kugirango ikore ukurikije ibipimo byuru ruzinduko rushya. Izi mpinduka kandi zahatiye kongera gushushanya piston, ibice hamwe nicyumba cyo gutwika.Kugirango hishyurwe icyiciro kigufi cyo kwikuramo, Volkswagen yazamuye igipimo cyo kwikuramo kigera kuri 11.7: 1, agaciro katigeze kabaho kuri moteri irenze urugero, ishimangira gushimangira ibice bimwe. Ndetse na EA888 iriho ntabwo irenga 9.6: 1. Gutera inshinge nazo zabonye umuvuduko wacyo, ubu ugera ku tubari 250.
Nubwihindurize bwa EA888, igisekuru cya gatatu cyumuryango wa moteri cyamenyekanye nka EA888 Intang 3B.
reka tujye kumibare
EA888 B ikora silinderi zose uko ari enye kumurongo hamwe na 2.0 l yubushobozi, hamwe no gukoresha turbo. Itanga hafi 184 hp hagati ya 4400 na 6000 rpm na 300 Nm ya tque hagati ya 1600 na 3940 rpm . Iyi moteri izabanza gusimbuza 1.8 TSI itanga ibikoresho byinshi byerekana ikirango cyubudage kigurishwa kumasoko yo muri Amerika ya ruguru.
Kugabanuka kugirango bikorwe neza? Ntukamubone.
Bizaba bishya Volkswagen Tiguan gutangira moteri nshya muri USA. Ukurikije ikirango, 2.0 nshya izemerera gukora neza no gukoresha ibicuruzwa bike hamwe n’ibyuka bihumanya ugereranije na 1.8 ihagarika gukora.
Kuri ubu, nta makuru yemewe yerekeranye no gukoresha. Ariko ikirango kigereranya igabanuka ryikoreshwa rya 8%, imibare ishobora kunozwa cyane hamwe niterambere ryiyi B-cycle.