黑夜之子 wrote:
golf賣的好只是因...(恕刪)
可變角度渦輪?老兄你去查查現在柴油客車哪台不是裝這個?
再去查查現代汽油車為何只有PORSCHE在裝VGT，鍵盤寫手果然厲害!
(幫你找好了~免得你不知道VGT的全名)
http://www.autozine.org/technical_school/engine/tech_engine_3.htm#VTG
Although VTG technology is extensively used in diesel engines, it is very much ignored in gasoline engines. This is because the exhaust gas of gasoline engines could reach up to 950°C, versus 700-800°C in diesel engines. Ordinary materials and constructions are difficult to withstand such temperature reliably.
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As compression ratio increases, modern gasoline engines have exhaust temperature higher and higher. Experts estimated it could exceed 1000°C in the foreseeing future. Perhaps this is why VTG technology for gasoline engines never went into mass production.
In 2006, BorgWarner finally developed a VTG turbocharger for use in Porsche 911 (997) Turbo. Both firms refused to reveal the technical details, but said it employed "temperature-resistant materials derived from aerospace technology". Hopefully the technology breakthrough will finally bring VTG turbochargers into mass production gasoline engines.
對了BorgWarner也就是供應DSG的廠商，同時他也供應其他車廠，只是不會叫DSG這名字‧
