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Power restriction on small capacity four stroke engines by exhaust gas recirculation - A new way of speed limiting with reduced exhaust emissions?
Technical Paper
2009-32-0069
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English
Abstract
Looking at the market for 2-wheelers driven by small capacity four stroke engines, it turns out that the legislation for exhaust emissions is mostly combined with a regulation of vehicle speed. Most of the vehicles in this category are still driven by engines equipped with carburetors which, unlike fuel injection systems, do not give the possibility to cut off fuel metering when high speed is achieved. When a carburetor is applied with a simple ignition unit, a reduction of spark advance is the only way to ensure correct vehicle speed, but there are a lot of disadvantages in terms of exhaust emissions and fuel economy coming up with this method of engine power restriction. This leads to the idea of using exhaust gas recirculation (EGR) to reduce engine power when necessary.
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Authors
- Jürgen Tromayer - Graz University of Technology, Institute for Internal Combustion Engines and Thermodynamic
- Gerd Neumann - Graz University of Technology, Institute for Internal Combustion Engines and Thermodynamic
- Roland Kirchberger - Graz University of Technology, Institute for Internal Combustion Engines and Thermodynamic
- Helmut Eichlseder - Graz University of Technology, Institute for Internal Combustion Engines and Thermodynamic
Citation
Tromayer, J., Neumann, G., Kirchberger, R., and Eichlseder, H., "Power restriction on small capacity four stroke engines by exhaust gas recirculation - A new way of speed limiting with reduced exhaust emissions?," SAE Technical Paper 2009-32-0069, 2009.Also In
References
- Homologation Standards of the Pollutant Emissions from Two- and Three-Wheel Motor Vehicles
- Tromayer Jürgen Kirchberger Roland Neumann Gerd Eichlseder Helmut Are low-cost, low-tech solutions adequate for small capacity EU III motorcycles? SAE Paper No. 2007-32-0014
- Takasu Kouji Kinoshita Hisatoshi Kato Ryusuke Effects on Fuel Economy and NOx Emission Using Stratified Charge and EGR System for a Single Cylinder Motorcycle Engine SAE Paper No. 2008-32-0018
- Ivanic Ziga Ayala Ferran Goldwitz Joshua Arlen Heywood John B. Effects of Hydrogen Enhancement on Efficiency and NOx Emissions of Lean and EGR-Diluted Mixtures in a SI Engine SAE paper No. 2005-01-0253
- Blair Gordon P. Design and Simulation of Four-Stroke engines SAE International 0-7680-0440-3
- Pischinger Rudolf Klell Manfred Sams Theodor Thermodynamik der Verbrennungskraftmaschine 3-2118-3679-9
- Hirz M. Korman M. Eichlseder H. Kirchberger R. Potential of the 50cc two wheeler motor vehicle class in respect of future exhaust emission targets SAE Paper No. 2004-32-0050