Patent ID: 7001442
Filing Date: 2006-02-21
Classification: B01D,F01N,Y02T,Y10S,Y10T

Abstract:
1. A particulate filter for trapping particulates contained in an exhaust gas discharged from a combustion chamber of an engine, comprising a plurality of exhaust gas flow passages each formed by three porous partitions extending substantially parallel with each other, each of the exhaust gas flow passages having a triangular cross section, wherein the partitions defining one of the adjacent exhaust gas flow passages are deformable at one end area of the filter so that the partitions at one end area of the filter approach each other toward one of the ends of the filter, the deformable portions of the partitions are connected to each other at their ends, thereby an opening of one of the adjacent exhaust gas flow passages is at least partially closed, wherein the partitions defining the other exhaust gas flow passage are deformable at the other end area of the filter so that the partitions at the other end area of the filter approach each other toward the other end of the filter, the deformable portions of the partitions are connected to each other at their ends, thereby an opening of the other exhaust gas flow passage is at least partially closed, and wherein each of the openings, which are not closed by the deformable portions of the partitions, are deformable into a hexagonal cross section.