Exhaust aftertreatment filter with residual stress control
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United States of America Patent
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Jul 1, 2008
Grant Date -
Apr 6, 2006
app pub date -
May 26, 2005
filing date -
Oct 6, 2004
priority date (Note) -
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Abstract
An exhaust aftertreatment filter has a pre-stressed layer bonded to the filter body at the outer periphery and compressively axially pre-stressed in an opposite axial direction to separational axial tensile stress to counteract the latter during regenerative heating, to minimize separational fracture and cracking.
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