Patent ID: 8211526
Filing Date: 2012-07-03
Classification: B01D,C04B,F01N,Y02T,Y10T

Abstract:
1. A honeycomb structure comprising a plurality of honeycomb segments having porous partition walls separating and forming a plurality of cells functioning as fluid passages and an outer peripheral wall located in the outermost periphery, the cells including first cells each open in an end portion on one side and plugged in the other end portion on the other side and second cells each plugged in the end portion on the one side and open in the other end portion on the other side, and the first cells and the second cells being alternately disposed with the first cells having an area larger than that of the second cells in a cross section perpendicular to the central axial direction; wherein the outer peripheral wall has protruding portions along an external shape of the first cells and depressed portions along an external shape of the second cells, the honeycomb segments are disposed with side faces thereof facing each other and bonded to each other with a bonding member at the side faces facing each other, and a distance between the depressed portions on adjacent side faces that are bonded to each other is equal to two times a height of the protruding portions plus a distance between the protruding portions of the adjacent side faces.