Patent ID: 7247184
Filing Date: 2007-07-24
Classification: B01D,B01J,B28B,B29C,B29L,C04B,F01N,Y02T,Y10S,Y10T

Abstract:
1. A honeycomb filter, comprising: an array of interconnecting porous walls which define an array of first channels and second channels, the first channels being bordered on their sides by the second channels and having a larger hydraulic diameter than the second channels, the first channels having a square cross-section, with corners of the first channels having a shape such that the thickness of the porous walls adjoining corners of the first channels is in a range of 0.8 to 1.2 times the thickness of the porous walls adjoining edges of the first and the second channels wherein a ratio of the hydraulic diameter of the first channels to the hydraulic diameter of the second channels is in a range from 1.1 to 2.0.