Juergen Poggel

摘要

Downsizing was the right way to go as carbon dioxide emissions legislation pushes towards 95g/km and below. I think gasoline engines will, in the future, have some features like variable valve timing and we must find a good plan to reach future CO_2 levels. I think gasoline engines will make a big step in technology, so the whole system will have to take a big step as well. When downsizing, turbocharger technology is important. For small engines, we have a borderline because the turbochargers are very small so the gap between a turbine and its housing is limited. For bigger engines, we have a lot of possibilities to get more efficiency with better turbochargers as you need other technologies to get it, so we expect some better turbochargers in the future but the steps are getting harder.