This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Application of Exhaust- Gas- Oxygen Sensors to the Study of Storage Effects in Automotive Three-Way Catalysts
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1980 by SAE International in United States
Annotation ability available
The time-average conversion efficiencies of an automotive three-way catalyst subjected to exhaust flows for which A/F is modulated around stoichiometry are benefited by the ability of the catalyst to store oxidizing and reducing chemical species. A V-8 engine equipped with a vapor carburetor and exhaust system containing zirconia exhaust-gas-oxygen sensors before and after a three-way catalyst have been used to study the response of the catalyst to fast changes in exhaust A/F ratio. With this experimental arrangement, qualitative and quantitative observations of storage of oxidizing and reducing chemical species on Engelhard Industries TWC-19D3 catalysts have been made. The quantitative value for the oxygen storage capacity obtained for full-sized catalysts in real exhaust gas compares favorably with the value measured using a laboratory mass-spectrometer technique with small catalyst samples and synthesized exhaust gases.
CitationMeitzler, A., "Application of Exhaust- Gas- Oxygen Sensors to the Study of Storage Effects in Automotive Three-Way Catalysts," SAE Technical Paper 800019, 1980, https://doi.org/10.4271/800019.
- Rivard, J. G. “Closed-Loop Electronic Fuel Injection Control of the Internal Combustion Engine.” Paper No. 73005, SAE International Automotive Engineering Congress, Detroit January 1973
- Zechnall, R. Baumann, G. Eisele, H. “Closed-Loop Exhaust Emission Control System with Electronic Fuel Injection” Paper No. 730566 , SAE National Automotive Engineering Meeting, Detroit May 1973
- “Robert Bosch Oxygen Sensor” Robert Bosch Corp. 20100 Civic Center Drive, Suite 316, Southfield, MI 48076 1974
- Dueker, H. Friese, K. H. Haecker W. D. “Ceramic Aspects of the Bosch Lambda-Sensor” Paper No. 750223 , SAE Automotive Engineering Congress and Exposition, Detroit February 1975
- Fleming, W. J. Howarth, D. S. Eddy, D. S. “Sensor for On-Vehicle Detection of Engine Exhaust Gas Composition” Paper No. 730575 , SAE Automotive Engineering Meeting, Detroit May 1973
- Gandhi, H. S. Piken, A. G. Shelef M. Delosh, R. G. “Laboratory Evaluation of Three-Way Catalysts” Paper No. 760201 (in SP-403), SAE Automotive Engineering Congress and Exposition, Detroit February 1976
- Kaneko, Y. Kobayashi, H. Komagome, R. Hirako, O. Nakayama, O. “Effect of Air-Fuel Ratio Modulation on Conversion Efficiency of Three-Way Catalysts” Paper No. 780607 (in SP-431), SAE Passenger Car Meeting, Troy, MI June 1978 (in SP-431)
- Su E. C. Montreuil C. “Oxygen Storage Capacity of Three Way Catalysts -Part I: Measurement by Pulse Injection Technique” Scientific Research Staff, Ford Motor Company July 28 1978
- Hamburg D. R. Hyland, J. E. “A Vaporized Gasoline Metering System for Internal Combustion Engines” Paper No. 7602–8, Automotive Engineering Congress and Exposition, Detroit February 1976
- Cederquist, A. L. Gibbons, E. F. Meitzler, A. H. “Characterization of Zirconia and Titania Engine Exhaust Gas Sensors for Air/Fuel Feedback Control Systems” Paper No. 760202 (in SP-403), SAE Automotive Engineering Congress and Exposition February 1976