Title: The performance of a three-way catalyst in a fifty thousand mile high speed durability trial

Authors: W.D.J. Evans, A.J.J. Wilkins, T.J. Truext, B.J. Cooper

Addresses: Johnson Matthey Chemicals Ltd., Autocatalyst Division, Royston, UK. ' Johnson Matthey Chemicals Ltd., Autocatalyst Division, Royston, UK. ' Johnson Matthey Inc., Catalytic Systems Division, Autocatalyst, Wayne, Pennsylvania, USA. ' Johnson Matthey Inc., Catalytic Systems Division, Autocatalyst, Wayne, Pennsylvania, USA

Abstract: In response to political pressures within West Germany, voluntary standards are being introduced supported by substantial fiscal benefits for owners of |clean| vehicles. The voluntary limits are based upon 1983 US Federal standards and FTP 75 test. Opponents of the German proposals suggested that the extensive experience of catalysts already established with European vehicles in the US market would be irrelevant to European conditions. Many differences were cited to support this contention. In response to such claims and as part of a policy of continuing catalyst development, Johnson Matthey Chemicals decided to examine the impact of severe thermal and mechanical environment on a |state of the art| automotive catalyst and to identify engineering targets for improved catalyst technology. On that basis a very high speed durability test was undertaken over a distance of 80,000 km (50,000 miles), using a single three-way catalyst.

Keywords: catalytic systems; high speed durability; three-way catalysts; vehicle emissions; emission control.

DOI: 10.1504/IJVD.1985.061403

International Journal of Vehicle Design, 1985 Vol.6 No.4/5, pp.613 - 616

Published online: 25 May 2014 *

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