Abstract
Increased demand on the European market and sensitivity to efficient fuel economy have put Diesel Technology on the issue of European engine manufacturers. Due to strict emission limits in recent years and the near future, manufacturers have been forced to develop highly efficient engines with high potential of reduction of fuel consumption and low Particulate and NOx emissions. Direct injection and Common Rail technology are synonymous for successful Diesel engine development.
Within the formation of the Fiat-GM Powertrain Joint Venture (JV) and Fiat's previous contribution of Common Rail technology development, the Italian Sites of the new Joint Venture have become the 'Centro di eccellenza' (Center of technological excellence) for the whole global activities of the Fiat GM Powertrain JV. The Joint Venture further has the vision to be the leader in Integrated Propulsion systems. With this tasks from 2002 on the Italian JV sites will be responsible for all Diesel engine applications, providing both clients Fiat worldwide and GM Europe (Opel, Vauxhall, Saab) with technically advanced and highly efficient diesel engines. The Small Diesel (2002) will be the first 'Baby' of common JV activities.
In order to achieve the emission targets and our clients demands the Italian Diesel development activities are based on six major items which are presented in this paper.
Present Diesel engines have a high potential of a increased power density up to 70 kW/l due to modifications on the combustion system and increased pressure.