| abstract |
An exhaust gas purifying system is provided that includes a catalyst carrier, and a honeycomb filter. The filter includes a pillar-shaped honeycomb fired body having a plurality of cells longitudinally disposed in parallel with one another with a cell wall therebetween, with either one end of each cell being sealed. The carrier is placed in an exhaust gas passage on an upstream side of the filter, and at a predetermined distance from the filter. A catalyst supporting layer is formed in the filter in a catalyst-supporting area covering about 25 to about 90% of an overall length of the filter, and substantially no catalyst supporting layer is formed in a non-catalyst-supporting area covering about 10% of the overall length, the non-catalyst supporting area abutting an outlet side of the filter. A thermal conductivity of the non-catalyst-supporting area is higher than a thermal conductivity of the catalyst-supporting area. |