Patent ID: 7648547
Filing Date: 2010-01-19
Classification: B01J,F01N

Abstract:
1. A honeycomb filter for purifying exhaust gases comprising: a columnar body comprising porous ceramic and having a plurality of through holes extending in parallel with one another in a length direction of the columnar body, the columnar body having a wall portion interposed between the through holes and configured to filter particulates in exhaust gases; and a plurality of plugs filling ones of the through holes at one end of the columnar body and filling ones of the through holes at the other end of the columnar body, wherein the columnar body has a three-point bending strength Fα (MPa) measured in accordance with JISR1601, the plurality of plugs has a length L (mm) in the length direction, and the columnar body and the plurality of plugs are formed such that the three-point bending strength Fα (MPa) and the length L (mm) are adjusted to satisfy the relationship of Fα×L≧30.