Title: Magnesium aluminum silicate structures for DPF applications
Application Number: 03819706 Application Date: 2003.06.25
Publication Number: 1674972 Publication Date: 2005.09.28
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: B01D39/20,B01D46/00,C04B35/195
Applicant(s) Name: Corning Inc. Address:
Inventor(s) Name: Beall Douglas M., Merkel Gregory A.
Attorney & Agent: zhou chengze
Abstract:
     A ceramic filter for trapping and combusting diesel exhaust particulates composed of an end-plugged cordierite honeycomb structure exhibiting a pore size distribution as determined by mercury porosimetry in which the quantity d50/(d50 d90) as related to pore size distribution is less than 0.70, a soot loaded permeability factor Sf, as defined by the equation [d50/(d50 d90)]/[%porosity/100], of less than 1.55, and, a coefficient of thermal expansion (25-800 C) of no greater than 17 x 10-7/ C. The ceramic filter further exhibits a median pore diameter, d50, of at least 4 micrometers and up to 40 micrometers. A method of making the filter is provided.
Time: 8
<- Previous Patent:Transparent polycrystalline alumi...   |  Next Patent:Low clinker portland cement ->