Patent Number: 6,946,013

Title: Ceramic exhaust filter

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.

Inventors: Alward; Gordon S. (Palm Dessert, CA), DiChiara, Jr.; Robert A. (Carlsbad, CA)

Assignee: GEO.sub.2 Technologies, Inc.

International Classification: B01D 39/20 (20060101); B01D 46/00 (20060101); B01D 51/00 (20060101); B01D 53/34 (20060101); B01J 8/02 (20060101); B01D 50/00 (20060101); B01D 59/00 (20060101); B29C 65/00 (20060101); B28B 1/48 (20060101); B28B 1/00 (20060101); C04B 33/32 (20060101); F01N 3/02 (20060101); B01D 046/00 (); B01D 039/20 ()

Expiration Date: 9/20/02017