Improved Combustion in Diesel Engines by Injection

Authors: Barbara Graziano Benedikt Heuser Paul Grzeschik

Publish Date: 2015/02/04

Volume: 76, Issue: 3, Pages: 4-9

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Abstract

The optimisation of fuel injection parameters remains a focal point in the further development of diesel engines The Institute for Combustion Engines at RWTH Aachen University has developed a prototype injector that allows completely flexible injection rate shaping Tests on the injector in a pressure chamber and on a singlecylinder research engine have shown the potential of improved injector needle opening times for achieving further reductions in emissionsEfficient powertrain concepts represent an optimal solution to cope with the straightening of emission standard regulations regarding CO2 emission and soot/NOxtradeoff The intrinsic pollutant emissions of diesel engine pose a great challenge to meet present and future European emission standards As an alternative to using complex and costly exhaust gas after treatment systems pollutants can be reduced to a great extent by incylinder emission reduction A substantial measure to reduce emissions is theThe research leading to these results has received funding from the European Union 7th Framework Program FP7/20072011 under grant agreement No 234032 The authors would like to thank DrIng Markus Jakob FEV for his support during the high pressure vessel investigations

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