Patent ID: 7169203
Filing Date: 2007-01-30
Classification: B01D,B01J,F01N,Y02T,Y10S,Y10T

Abstract:
1. A honeycomb structure comprising a plurality of honeycomb segments bonded into one piece, each segment having an outer peripheral wall, cell walls disposed inside the outer peripheral wall, and a large number of cells partitioned from one another by the cell walls and passing through an axial direction, wherein in a vertical section to the axial direction of the honeycomb structure, the honeycomb structure comprises the honeycomb segment whose cell walls have an angle in a range of 25 to 65 degrees to a straight line along an outermost point of the outer peripheral wall adjacent to another honeycomb segment, wherein the another honeycomb segment has cell walls having an angle in a range of 25 to 65 degrees to a straight line along an outermost point of the outer peripheral wall of the honeycomb segment adjacent to the another honeycomb segment, wherein outermost peripheral walls are formed from a plurality of honeycomb segments having outer peripheral walls that do not make a straight line along an outermost point of the outer peripheral wall, and wherein the honeycomb segment and the another honeycomb segment are each located in a central portion of the honeycomb structure, and are each substantially quadrangular in shape.