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New generation of metallic substrates for catalytic converters in small engine application
Technical Paper
2007-32-0057
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English
Abstract
The new generation of metallic substrates for catalytic converters used in the two and three wheeler industry is capable of improving conversion behavior even with smaller catalyst size. The lowering of production costs due to less use of precious metal is possible. This novel technological application in motorcycle vehicle class improves exhaust emission performance and introduces a new competitive product on the market. Specially developed foil structures, which transform a laminar exhaust gas flow to a turbulent one, significantly improve exhaust gas mixing behavior in the catalyst.
This publication is dealing with the analysis of different metallic substrate foil structures for the catalyst conversion performance and the light-off characteristics for the leading state of the art four stroke 150 cm3 motorcycle technology developed for the Asian market. The impact of standard compared to turbulent substrate foil structures tested under Indian (IDC) and European (ECE R40) driving cycles will be discussed in depth. Especially turbulent catalytic converters with transversal, longitudinal and perforated substrate foil structures and the influence of the catalyst volume and different coating on conversion have been treated.
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Authors
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Citation
RECK, A., KAISER, F., JAYAT, F., KORMAN, M. et al., "New generation of metallic substrates for catalytic converters in small engine application," SAE Technical Paper 2007-32-0057, 2007.Also In
References
- Reck A. Kaiser F-W, Nguyen M.D. Korman M. Kirchberger R. Hirz M. “Metallic Substrates for Catalytic Converters in 2 & 3 Wheelers / Turbulent Catalysts meet the Requirements of the Future” VSAE Paper 00096
- Held Rohlfs VW AG Maus W. Swars Brueck R. Kaiser F.W. Emitec GmbH “Improved Cell Design for increased Catalytic Conversion Efficiency” SAE 940932
- Bollig M. Liebl J. Zimmer R. BMW Group Kraum M. Seel O. Siemund S. Engelhard Technologies GmbH Brück R. Diringer J. Maus W. Emitec GmbH “Next generation catalysts are turbulent:development of support and coating” SAE 2004-01-1488
- Chaudhari M.K. Jose Tom ARAI Vora K.C. Dias C.F. Emitec Emission Controls Reck A. Diewald R. Emitec GmbH Germany “An Investigation on Application of Metallic Substrates and Emitubes for a Two-Stroke Three-Wheeler” SAE 990033 1999
- Heck R. M. Farrauto R. J. “Catalytic air pollution control” New York 2002 0-471-43624-0