Ceramic diesel exhaust filters
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United States of America Patent
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-
Aug 25, 2009
Grant Date -
Sep 1, 2005
app pub date -
Dec 10, 2004
filing date -
Oct 28, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
An improved, efficient, and regenerable exhaust emission filter and filter system are provided which incorporate the use of an inorganic, non-woven fiber filter element. The filter is able to capture exhaust pollutants and particulates through the interwoven nature of the filter element and due to area enhancements applied to the filter element including microscopic enhancements. The filter has an improved life and is able to combust a greater percentage of trapped particulates due to the high temperatures the filter element can withstand. The filter element if formed from a non-woven fiber block which is machined or shaped into a filter foundation. The filter element can have a multitude of coatings and catalysts applied and can be wrapped in insulation and a casing. The improved exhaust emission filter is particularly useful for diesel engine exhausts.
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