Development Potential of High Speed DI Diesel Engines

The paper compares the development potential of high speed DI Diesel engines with production IDI Diesel engines. Possibilities to overcome the critical NOx emission and combustion noise problems are discussed and their effectiveness is evaluated. The fuel consumption advantages both for a European emission standards tuning and a tuning to meet todays US Federal Standards are figured out to be about 15% and 10%. The possibilities to realize a methanol high speed DI Diesel engine are also discussed.