10th Symposium "The Working Process of the Internal Combustion Engine"
Potential of a two Stage Turbo Charging on a Modern MAN D20 Vehicle Engine
Authors
Gottfried Raab, Heidrun Bauer, Peter Kislinger, MAN Nutzfahrzeuge Österreich AG, Wolfgang Held, MAN Nutzfahrzeuge AG
Year
2005
Summary
The future emission limits EURO 5 and EEV for commercial vehicles can be met by different solutions: on the one hand by a particle optimized diesel engine in combination with a SCR (Selective Catalytic Reduction)-System for nitrogen oxide (NOx) reduction (e.g. MAN AdBlue®) and on the other hand by an engine concept using an exhaust gas recirculation (EGR) for low NOx-emissions and a particle filter (e.g. MAN PM-KAT®) to comply with the particle limits. In addition to low emissions an economical solution should be developed, to be competitive on the market regarding product costs, weight, maintenance costs and fuel consumption. This paper shows the potential of a two stage turbo charging in connection with an EGR concept as well as the effect on the cooling system.
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