A Novel Technology for the Inhibition of Ceramic Fiber Erosion and Promotion of Substrate Retention in Catalytic Converters

2009-01-0975

04/20/2009

Event
SAE World Congress & Exhibition
Authors Abstract
Content
As emission requirements become increasingly more stringent, catalytic converters are being subjected to harsher conditions. These conditions include higher temperatures, increased vibration levels, higher frequencies and more intense exhaust gas impingement on the mat mount. All of which can contribute to the mat mount erosion. Over time, this erosion can lead to catastrophic failure of the catalytic converter either from gas bypass, plugging of the substrate or the loss of substrate retention within the converter.
Several technologies have been developed to reduce mat mount erosion. These technologies include; wiremesh seals, rigidizers, silica cloth edge treatment and polycrystalline edge seals which all are in use today. These erosion reduction technologies provide varying degrees of erosion protection, and each has one or more drawbacks. These drawbacks include cost, productivity, handling and overall performance.
This paper discusses the merits of a novel erosion reducing edge treatment technology. A technology that reduces erosion, while at the same time preserves the mat mount’s handling, and performance properties. The merits of the novel edge treatment technology will be discussed and compared with current erosion protection technologies and methods of application. In addition, the different erosion protection technologies will be compared in simulated laboratory erosion tests.
Meta TagsDetails
DOI
https://doi.org/10.4271/2009-01-0975
Pages
8
Citation
Watson, M., and Dietz, P., "A Novel Technology for the Inhibition of Ceramic Fiber Erosion and Promotion of Substrate Retention in Catalytic Converters," SAE Technical Paper 2009-01-0975, 2009, https://doi.org/10.4271/2009-01-0975.
Additional Details
Publisher
Published
Apr 20, 2009
Product Code
2009-01-0975
Content Type
Technical Paper
Language
English