|
發表於 2012-8-16 18:34:04
|
顯示全部樓層
回復 Addicted #11 的帖子
BMW’s TwinPower Turbo Technology is substantially different from the outgoing N54′s twin-turbo powered setup. With Twin-Turbo, two small turbochargers are used to increase the engine’s output, both spooling up at the same time as RPMs grow. With BMW’s new TwinPower technology, the N55 actually features only a single turbocharger instead of two working in concer.The single turbocharger of TwinPower design is what is known as a twin-scroll turbocharger. It is an attempt to combine the advantages of using two small turbochargers and the singular housing design of a single turbocharger setup. With the twin-scroll design of the N55, BMW claims an advantage in both torque and the RPMs at which maximal performance arrives combined with an increase in fuel efficiency. 咪係~唔識就上網check 下麻! |
|