FLOW EFFECTS IN MONOLITHIC HONEYCOMB AUTOMOTIVE CATALYTIC CONVERTERS

This paper describes the results of durability tests of monolithic catalytic converters with mechanical devices used to tailor the exhaust gas flow. Deflectors of several different shapes show promise of extending the useful life of the converter by improving conversion efficiencies of hydrocarbons and CO. The tests were run on engine/dynamometers with round cross-sectional area samples and with symmetrical inlet cones. Improvements are found in initial activity and reduced deterioration. The penalty for altering the flow is in slower catalyst light-off and increased pressure drop.

  • Corporate Authors:

    Society of Automotive Engineers

    485 Lexington Avenue
    New York, NY  USA  10017
  • Authors:
    • Howitt, J S
    • Sekella, T C
  • Publication Date: 1974-2

Media Info

  • Pagination: 10 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00264338
  • Record Type: Publication
  • Report/Paper Numbers: SAE Paper No. 740244
  • Files: TRIS
  • Created Date: Jan 9 1975 12:00AM