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Design of a Tumble-Orientated Intake Port Layout for a Gasoline Combustion Process Used in Power Sport Application
Technical Paper
2011-32-0589
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English
Abstract
In this publication, an intake design study was implemented in the development of a GDI engine concept at the Institute for Internal Combustion Engines and Thermodynamics at Graz University of Technology. For a high performance three-cylinder gasoline engine, different intake port geometries were developed, designed and evaluated with CAD and 3D CFD simulation methods. An emission reduction might be achieved with the improvement of the combustion behavior, as well as an increase of performance with an optimized cylinder charging. The combustion behavior was influenced by increasing the turbulence level via an intensified charge movement. The assessment criteria comprised the cylinder charge represented by the flow coefficient and the charge movement using the tumble number. The different intake designs were investigated in terms of a naturally aspirated engine concept using external (MPFI concept) and a supercharged engine concept with an internal homogeneous fuel mixture formation (DI concept). The studies took place in three basic steps. In the first, the statistical methodology of design of experiments (DoE) was applied to evaluate different parameters; the second consisted of a comparison of different intake port variants using a steady state flow simulation. In the third step, a detailed comparison of two intake port variants using a transient flow simulation was carried out.
The primary objective was to present the best possible charge movement without losses in the cylinder charge. The requirement on the intake port layout was thus to generate “low-loss” tumble flow. Furthermore, it was attempted to use the intake port geometry for two cylinder head concepts (DI and MPFI combustion process).
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Schögl, O., Edtmayer, H., Schmidt, S., Leiber, S. et al., "Design of a Tumble-Orientated Intake Port Layout for a Gasoline Combustion Process Used in Power Sport Application," SAE Technical Paper 2011-32-0589, 2011, https://doi.org/10.4271/2011-32-0589.Also In
References
- Golloch, R. Downsizing bei Verbrennungsmotoren Springer 2005
- Delphi Automotive LLP Delphi Brochure 2010/11 Passenger Cars & Light Duty Vehicles 2010 www.delphi.com
- Zinner, C. Abart, M. Schögl, O. Schmidt, St. Leiber, S. Schabetsberger, T. Charging and Powersport for Motorcycles: a contradiction? SAE 2011-32-0585 2011
- Schmidt, S. Trattner, A. Schögl, O. Kirchberger, R. Eichlseder, H. Joyce, M. Wall, J. Combustion system concept for Low Pressure Gasoline Direct Injection Aachener Kolloquium Fahrzeug- und Motorentechnik 2010
- Trzesniowski, M. Rennwagentechnik ViewegTeubner 2008
- Waukesha, Dresser Design of Experiments Reduces Time to Market http://www.powermag.com/ June 2010
- MKS Umetrics Modde User Guide 2009
- Giger, B. Design of Experiments - Einführung in die statistische Versuchsplanung TQU AG Winterthur 2009
- Xu, H. “Some critical technical issues on the steady flow testing of cylinder heads,” SAE Technical Paper 2001
- Pischinger, R. Klell, M. Sams, T. Thermodynamik der Verbrennungskraftmaschine Springer WienNewYork 2009
- Van Eickels, B. Supersport-Engine in Design Conflict between Legislation and High Perfomance Conference Paper “Der Arbeitsprozess des Verbrennungsmotors” 2007
- Son, J. A Correlation Between Re-Defined Design Parameters and Flow Coefficients of SI Engine Intake Ports SAE Technical Paper 2004
- Gaikwad, S. Arora, K. Korivi, V. Cho, S. “Steady and Transient CFD Approach for Port Optimization,” SAE Int. J. Mater. Manuf. 1 1 754 762 2008 10.4271/2008-01-1430
- Seemayer, M. Correlation of Charge Motions on Internal Combustion 4 Strokes ROTAX Engines Conference Paper “Der Arbeitsprozess des Verbrennungsmotors” 2007
- AVL List GmbH AVL Fire User Guide 2009
- Winklhofer, E. Risikoanalyse und Entwicklungstechniken für DI Otto Brennverfahren hoher Leistungsdichte AVL List GmbH 2009
- Wimmer, A. Thermodynamik der Verbrennungskraftmaschine Skriptum Technische Universität Graz 2009
- Eichlseder, H. Klüting, M Piock, W.F. Grundlagen und Technologien des Ottomotors Springer WienNewYork 2008