10th Symposium "The Working Process of the Internal Combustion Engine"
The Combustion Process of the Diesel Engine in the Change of Emission Legislation
Authors
Martin Schnabel, Dr. Ing. Hermann Breitbach, Christian Enderle, DaimlerChrysler AG, EP/M, Stuttgart
Year
2005
Summary
The first Diesel engine in a passenger car was introduced in 1936 with the Mercedes-Benz 260D. Since then, the diesel engine has undergone a rapid development, especially in the last decade. Today the diesel engine has a share of 49% in the newly registered vehicles in Europe and further growth is predicted. At the same time tighter emission legislation for particulate and nitrous oxide emissions are being discussed. Only if the essential steps towards lower nitrous oxide emissions can be achieved with engine related measures, the efficiency and the cost status of the diesel engine can be secured. Temperature has the most significant influence on nitrous oxide formation, thus lowering the combustion temperature is the main objective. The main parameters to achieve lower combustion temperatures like EGR, late combustion, reduction of the compression ratio and homogenization will be presented. We will discuss how a combination of measures can achieve a reduction of nitrous oxide emissions without inappropriate penalties in fuel consumption and noise.
Members of the Austrian Society of Automotive Engineers have access to all lectures of the International Vienna Motor Symposia.