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Turbocharging of a Two-cylinder Lean-Burn Natural Gas Engine with Uneven Firing Order
Technical Paper
2014-01-1652
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
At the Institute of Internal Combustion Engines of the Technische Universitaet Muenchen a drivetrain for urban and commuter traffic is under development. The concept is based on a lean-burn air-cooled two-cylinder natural gas engine which is combined with a hydraulic hybrid system.
The engine is initially mechanically charged which results in an engine speed dependent torque. Turbocharging the natural gas fuelled engine derives increased engine torque especially at low engine speeds and exploits the potential of better knock resistance of natural gas compared to gasoline fuel.
The paper presents a turbocharging concept for the two-cylinder engine at first. The firing order of 180/540°CA due to the crank shaft design and the lean-burn combustion are challenging restrictions to cope with. The consequences of the uneven firing order are investigated using 1D-simulation and the matching of the exhaust gas turbocharger is shown. Afterwards, results of the engine test-bench at different engine operation points are opposed to the simulation results and evaluated. The results are compared to other approaches and assessed.
Altogether, the paper describes design, application, 1D-simulation and test bench results of a turbocharging concept for a two-cylinder lean-burn natural gas engine with an uneven firing order.
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Wohlgemuth, S., Meiland, L., Wachtmeister, G., and Fledersbacher, P., "Turbocharging of a Two-cylinder Lean-Burn Natural Gas Engine with Uneven Firing Order," SAE Technical Paper 2014-01-1652, 2014, https://doi.org/10.4271/2014-01-1652.Also In
References
- Wohlgemuth , S. , Wachtmeister , G. , and Kloft , P. Development of a Hydraulic Hybrid System for Urban Traffic SAE Technical Paper 2013-01-1479 2013 10.4271/2013-01-1479
- Schernus , C. , Dieterich , C. , Nebbia , C. , Sehr , A. et al. Turbocharging of Downsized Gasoline DI Engines with 2 and 3 Cylinders SAE Technical Paper 2011-24-0138 2011 10.4271/2011-24-0138
- Schernus , C. , Nebbia , C. , Dieterich , C. , Hermsen , F. et al. Two-Cylinder Turbocharged Gasoline Engine Concepts SIA - The spark ignition engine of the future Strasbourg 2011
- Weber Motor GmbH MPE 750 Four Stroke for Recreational Powersports Product information
- Iyer , H. , Shaik , R. , Vagesh , A. M., R. , et al. Turbocharging a Small Two Cylinder DI Diesel Engine - Experiences in Improving the Power, Low End Torque and Specific Fuel Consumption SAE Technical Paper 2011-24-0133 2011 10.4271/2011-24-0133
- Cuniberti , M. , Micelli , D. , Stroppiana , A. , venezia , C. Charging system for a small bi-cylinder engine: the TwinAir experience 16. Turboaufladung Konferenz Dresden, Germany 2011
- Schernus , C. , Wedowski , S. , Sehr , A. , Weinowski , R. et al. Aufladekonzepte für kleine Ottomotoren 9. Symposium Ottomotorentechnik Ostfildern, Germany December 2 3 2010
- Honeywell Turbo Technologies Garrett by Honeywell, Turbocharger Guide 5 Product catalogue
- Zinner , K. Aufladung von Verbrennungsmotoren, Grundlagen, Berechnung, Ausführung Springer-Verlag New York Heidelberg Berlin 3-540-10088-1 1980
- Aymanns , R. , Scharf , J. , Uhlmann , T. , Pischinger , S. Turboladerwirkungsgrade in pulsierender Abgasströmung Motorentechnische Zeitschrift 07-08 580 585 2012
- Boland , D. Wirkungsgradoptimaler Betrieb eines aufgeladenen 1,0 l Dreizylinder CNG Ottomotors innerhalb einer parallelen Hybridarchitektur Ph.D. thesis Institut für Verbrennungsmotoren und Kraftfahrwesen, Universität Stuttgart 2011
- Moraal , P. and Kolmanovsky , I. Turbocharger Modeling for Automotive Control Applications SAE Technical Paper 1999-01-0908 1999 10.4271/1999-01-0908