Changing the Substrate Technology to meet Future Emission Limits

Paper #:
  • 2010-01-1550

Published:
  • 2010-05-05
Citation:
Pace, L. and Presti, M., "Changing the Substrate Technology to meet Future Emission Limits," SAE Int. J. Fuels Lubr. 3(2):395-403, 2010, https://doi.org/10.4271/2010-01-1550.
Affiliated:
Pages:
9
Abstract:
Future stringent emission legislation will require high efficient catalytical systems. Along with engine out emission reduction and advanced wash coat solution the substrate technology will play a key role in order to keep system costs as low as possible.The development of metallic substrates over the past few years has shown that turbulent-like substrates increase specific catalytic efficiency. This has made it possible to enhance overall performance for a specific catalytic volume or reduce the volume while keeping catalytic efficiency constant.This paper focuses on the emission efficiency of standard, TS (Transversal Structure) and LS (Longitudinal Structure) metallic substrates. In a first measurement program, standard TS and LS substrates have been compared using a 150cc 4 Stroke engine in dynamic (ECE R40) conditions. In a second test standard and LS substrate have been tested.Both TS and LS technologies show advantage compared to standard technology but have different application fields: TS is a cost effective solution for next emission limits while LS is a possible solution for future stringent emission limits.
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