Kusiyana kwamphamvu kwambiri kwa EA888 Gen3 ndi EA888 Gen3B (mibadwo itatu ndi theka) yamphamvu kwambiri ndi yayikulu kwambiri. Chifukwa chogwiritsa ntchito makina oyaka kosiyanasiyana ndi zolinga za magwiridwe antchito, pali kusiyana kosiyanasiyana mu Hardware, makamaka izi:
1. Makina osiyanasiyana oyaka:
The mkulu-mphamvu EA888 Gen3 utenga chikhalidwe Otto mkombero, pamene otsika mphamvu EA888 Gen3B ntchito Miller mkombero kuchepetsa kumwa mafuta, kotero pistons, yamphamvu mutu kuyaka zipinda, yamphamvu mutu mpweya madoko, injectors, compression ratios, etc. awiri osiyana.
Kodi kuzungulira kwa Miller ndi chiyani?
EA888 Gen3B yamphamvu yotsika imagwiritsa ntchito kutseka koyambirira kwa valavu yolowera kuti ikwaniritse kuyaka ndi chiwopsezo chokulirapo kuposa kuchuluka kwa kuponderezana, potero kumapangitsa kuti matenthedwe azikhala bwino. Nthawi zambiri, kuzungulira kwa Miller kumabweretsa kutayika kwakukulu kwa magwiridwe antchito. Mbali yolowera ya injini ya EA888 Gen3B idapangidwa ndi makina okweza ma valve osinthika a AVS, omwe amagwiritsa ntchito ukadaulo wokweza ma valve kuti athetse kutayika kwa magwiridwe antchito chifukwa cha kuzungulira kwa Miller. Choncho, cholinga cha Volkswagen pakupanga mphamvu zochepa za EA888 Gen3B ndikukwaniritsa mulingo wogwiritsa ntchito mafuta a 1.4T ndi gawo la 1.8T.
Mfundo ya Miller cycle
Mwa kutseka valavu koyambirira, chiŵerengero chokulitsa chikhoza kukhala chachikulu kuposa chiŵerengero cha kuponderezana, ndipo kutayika kwa kupopera kungachepe.
Piston EA888 1.8T
Kusiyana pakati pa GEN3 Otto cycle ndi GEN3B Miller cycle
(1) Kusiyana kwa mapangidwe a valve ndi pisitoni: GEN3B ya valavu yolowera ndi yaying'ono ndipo pamwamba pa pistoni ndi yokwera, yomwe imatha kukwaniritsa chiŵerengero cha 11.7 (GEN)
3's compression ratio ndi 9.8).
(2) Kusiyana kwa doko la ndege ndi kapangidwe ka mbiri ya cam: GEN3B idapangidwa ndi doko lalikulu lolowera komanso mawonekedwe otsika a kamera kuti akwaniritse kuzungulira kwa Miller.
2. Kusiyana kwa ma valve osinthika amakweza mapangidwe a AVS
Makina okweza ma valve osinthika AVS amphamvu kwambiri EA888 Gen3 ali kumbali yotulutsa mpweya. Uwu ndiye mawonekedwe achikhalidwe a AVS a EA888, zomwe zakhala zikuchitika kuyambira m'badwo wachiwiri. Cholinga chake chachikulu ndikuwongolera ma torque otsika komanso kuyankha kwamphamvu kwa supercharger ndikuchepetsa turbo lag.
The variable valve lift system AVS of low-power EA888 Gen3B ili kumbali ya kudya, makamaka kuti apange gawo la kutayika kwa mphamvu komwe kumachitika chifukwa cha Miller cycle (komabe sangathe kufika pa mlingo wa mphamvu zamphamvu).
3. Kusiyana kwa mapangidwe olekanitsa mafuta ndi gasi
Olekanitsa mafuta amafuta amtundu wamphamvu kwambiri wa EA888 Gen3 amalumikizidwa mwachindunji kuchokera pabowo lolekanitsa mafuta a silinda mpaka pa cholekanitsa chamafuta-gasi pamutu wa silinda.
Kuti tikwaniritse kulekanitsa bwino kwamafuta ndi gasi ndikuchepetsanso kugwiritsira ntchito mafuta, mtundu wochepa wa mphamvu ya EA888 Gen3b umagwiritsa ntchito phokoso lachitsulo cholowera mbali imodzi pa silinda ngati cholekanitsa chamafuta-gasi, ndikukwaniritsa kulekanitsa kwakukulu kudzera pakuzungulira kothamanga kwa shaft (liwiro limakhala lowirikiza kawiri kuposa la crankshaft) kenako mafuta amapita kumutu wa crankshaft. Mapangidwe awa azikhala ndi mafuta ochepa.
4. Kusiyana kwa crankshaft diameter
Injini yamphamvu yotsika ya GEN3B imasankha kachingwe kakang'ono ka shaft mainchesi kuti muchepetse kugundana ndikuchepetsa kugwiritsa ntchito mafuta.
5. Kusiyana kwamafuta
Titha kuwona kuti mtundu wocheperako wa GEN3B wapangidwa mwapadera kuti ukwaniritse kugwiritsa ntchito mafuta ochepa komanso kuchita bwino kwambiri. Choncho, mphamvu ya mtundu wa GEN3B wochepa mphamvu ukhoza kusinthidwa ndi pafupifupi 8% poyerekeza ndi mtundu wa GEN3 wamphamvu kwambiri.
Kugwiritsa ntchito mafuta a injini muzochitika zonse zogwirira ntchito kwachepetsedwa kwambiri:
Mafuta a GEN3B nawonso ndi otsika kwambiri kuposa a GEN3:
Fotokozerani mwachidule
Pali kusiyana kwakukulu pakati pa mphamvu yapamwamba ndi yotsika ya injini yachitatu ya EA888. Mphamvu yayikulu imakondera pakuchita bwino, pomwe mphamvu yotsika imapangidwa mwapadera kuti igwiritse ntchito mafuta ochepa.
