APPLICATION OF EXHAUST-GAS-OXYGEN SENSORS TO THE STUDY OF STORAGE EFFECTS IN AUTOMOTIVE THREE-WAY CATALYSTS
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.
- Published in HS-029 044 (SAE-SP-458), "Sensors for Automotive Systems," Warrendale, Pennsylvania, 1980, pp 13-21. Presented at SAE Congress and Exposition, Detroit, 25-29 February 1980.
Warrendale, PA USA 15096
- Meitzler, A H
- Publication Date: 1980
- Features: References;
- Pagination: 23 p.
- Society of Automotive Engineers Preprint
- Publisher: Society of Automotive Engineers
- TRT Terms: Applications; Carbon dioxide; Catalysts; Chemicals; Control systems; Exhaust gases; Internal combustion engines; Oxidation; Oxygen; Sensors; Stoichiometry; Vehicle power plants
- Old TRIS Terms: Automobile engines; Exhaust gas oxygen sensors
- Subject Areas: Highways; Research; Vehicles and Equipment; I95: Vehicle Inspection;
- Accession Number: 00322877
- Record Type: Publication
- Source Agency: Engineering Index
- Report/Paper Numbers: SAE 800019, HS-029 046
- Files: HSL, TRIS
- Created Date: Jan 19 1984 12:00AM