Hexagonal Cell Ceramic Substrates for Lower Emission and Backpressure

2008-01-0805

04/14/2008

Event
SAE World Congress & Exhibition
Authors Abstract
Content
Stringent emission regulations call for advanced catalyst substrates with thinner walls and higher cell density. However, substrates with higher cell density increase backpressure, thinner cell wall substrates have lower mechanical characteristics. Therefore we will focus on cell configurations that will show a positive effect on backpressure and emission performance. We found that hexagonal cells have a greater effect on emission and backpressure performance versus square or round cell configurations. This paper will describe in detail the advantage of hexagonal cell configuration versus round or square configurations with respect to the following features:
  1. 1
    High Oxygen Storage Capacity (OSC) performance due to uniformity of the catalyst coating layer
  2. 2
    Low backpressure due to the large hydraulic diameter of the catalyst cell
  3. 3
    Quick light off characteristics due to efficient heat transfer and low thermal mass
Meta TagsDetails
DOI
https://doi.org/10.4271/2008-01-0805
Pages
8
Citation
Segawa, Y., Hase, T., and Yoshida, T., "Hexagonal Cell Ceramic Substrates for Lower Emission and Backpressure," SAE Technical Paper 2008-01-0805, 2008, https://doi.org/10.4271/2008-01-0805.
Additional Details
Publisher
Published
Apr 14, 2008
Product Code
2008-01-0805
Content Type
Technical Paper
Language
English