Patent ID: 6248421
Filing Date: 2001-06-19
Classification: B01D,B01J,F01N,Y02T,Y10T

Abstract:
A ceramic honeycomb structure comprising:an outer circumferential skin layer of nearly a cylindrical shape;partitioning walls defining a number of cells which extend in the axial direction of the ceramic honeycomb structure in said outer circumferential skin layer; andat least one reinforcing layer of nearly a cylindrical shape formed near the inside of said outer circumferential skin layer but being spaced apart therefrom and extending from one end of the ceramic honeycomb structure toward the other end thereof; whereinsaid outer circumferential skin layer, said partitioning walls and said at least one reinforcing layer are integrally made of the same material, and the thickness of said partitioning walls is not larger than 100 .mu.m in the areas from the central portion of the ceramic honeycomb structure to the vicinity of said reinforcing layer.