PERFORMANCE AND EMISSION PREDICTIONS FOR A MULTI-CYLINDER SPARK IGNITION ENGINE WITH CATALYTIC CONVERTER

A mathematical model is developed to represent an oxidizing catalytic converter in the exhaust system of a spark ignition engine in which the flow is non steady. A series of tests were carried out on a four cylinder two litre engine with a carbon monoxide and hydrocarbon oxidizing converter and secondary air injection. Comparison of results between experiments and computer calculations shows excellent agreement when the converter is new, but that if the catalyst surface is poisoned or aged the hydrocarbon prediction deteriorates. The carbon monoxide predictions, however, remain fairly good. Prediction of the overall engine performance and emission levels is very good. /SASI/

  • Corporate Authors:

    Society of Automotive Engineers

    400 Commonwealth Drive
    Warrendale, PA  USA  15096
  • Authors:
    • Baruah, P C
    • Benson, R S
    • Gupta, H N
  • Publication Date: 1978-6

Media Info

  • Pagination: 22 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00183095
  • Record Type: Publication
  • Report/Paper Numbers: SAE 780672
  • Files: TRIS
  • Created Date: Dec 3 1978 12:00AM