Patent ID: 7318954
Filing Date: 2008-01-15
Classification: B01D,B01J,C04B,F01N,Y02T,Y10T

Abstract:
1. A honeycomb structure comprising: a plurality of partition walls provided so as to form a plurality of cells extending in an axial direction of the honeycomb structure and having a polygonal section normal to the axial direction; and an outer wall surrounding said plurality of partition walls, wherein the partition walls have an average thickness (Tp) of 0.038 to 0.17 mm, the outer wall has an average thickness (Ts) satisfying a relation of Tp<Ts≦0.7 mm, and the outer wall has a concave and convex structure showing a concave and convex shape at its outer surface in the section of the honeycomb structure normal to the axial direction, a convex top being located at an outer surface of each of an abutting portion or an abutting portion vicinity, the abutting portion being a part of the outer wall where the partition wall abuts the outer wall, the abutting portion vicinity being a part of the outer wall present at each side of the abutting portion with a width of Tp.