This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Development and Application of a Metal Supported Catalyst for Porsche's 911 Carrera 4
Annotation ability available
Sector:
Language:
English
Abstract
Metal supported catalysts, whose early development actually started in the sixties, are used today in a few isolated cases as starter catalysts, retrofit and underfloor catalysts of small dimensions. The new Porsche Carrera 4 is the first production car to use a large main catalytic converter with metal supports. This paper describes the design of this catalyst and the advantages of using the metal supports, especially the increase in power output due to the reduction of exhaust back pressure. Also benefits in catalytic performance could be determined. The major requirement in using large metal supports in production is mechanical sturdiness. In extensive vehicle, test bench and laboratory tests and according to the theoretical calculations, the support with S-design described here has met this requirement. In spite of some still existing disadvantages, both of which can be reduced with further development, the use of metal supported catalytic converters is a serious alternative to the conventional ceramic supported catalyst.
Recommended Content
Citation
Pelters, S., Kaiser, F., and Maus, W., "The Development and Application of a Metal Supported Catalyst for Porsche's 911 Carrera 4," SAE Technical Paper 890488, 1989, https://doi.org/10.4271/890488.Also In
References
- Öser P. “Novel Autocatalyst Concepts and Strategies for the Future with Emphasis on Metal Supports” SAE paper 880319 1988
- Nonnenmann M. “Metal Supports for Exhaust Gas Catalysts” SAE paper 850131 1985
- Wendland D. W. Matthes W. R. “Visualization of Automotive Catalytic Converter Internal Flows” SAE paper 861554 1986
- Schönfelder Ch. “Strömungsoptimierung von metallischen Automobil-Abgaskatalysatoren” VDI-Berichte Nr. 613 1986
- Hawker P.N. Jaffray C. Wilkins A.J.J. “Metal Supported Automotive Catalysts for Use in Europe” SAE paper 880317 1988
- Brill U. Heubner U. “Werkstoffe fur Metalltrager von Automobil-Abgaskatalysatoren” MTZ Motortechnische Zeitschrift 49 1988 9
- Pelters S. Kaiser F. W. “Konkurrenz für den Keramik-Kat” Automobil-Produktion Nov. 1988
- Dorsch H. Körkemeier H. Pelters S. Rutschmann E. Zickwolf P. “3,6 1 Doppelzündungsmotor des Porsche Carrera 4” MTZ Motortechnische Zeitschrift Febr. 1989