Honeycomb structure body
AssigneeDenso Corporation
InventorsKazuhiko Koike, Keisuke Mizutani, Hiroaki Kayama
Life of this patent
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Abstract
A honeycomb structure body has a skin part of a cylindrical shape and a honeycomb structural part formed with the skin part together in a monolithic body. The skin part and the honeycomb structural part have partition walls of a porous structure. The cells have first cells arranged adjacent to the skin part and second cells arranged adjacent to the first cells. The skin part, the first cells and the second cells form an outer peripheral section. A central section is arranged inside the outer peripheral section. The honeycomb structure body satisfies a relationship in which a thermal expansion coefficient of the outer peripheral section is greater than a thermal expansion coefficient of the central section.
Claims9
A honeycomb structure body comprising:
- a skin part having a cylindrical shape;
- and
- a honeycomb structural part formed with the skin part together in a monolithic body,
- wherein
- the skin part and the honeycomb structural part comprise partition walls having a porous structure in which pores are formed, the partition walls form cells, each of the cells being surrounded by the partition walls and extending in an axial direction of the honeycomb structure body,
- the cells comprise first cells and second cells, the first cells being arranged adjacent to the skin part, and the second cells are arranged adjacent to the first cells,
- wherein
- the skin part, the first cells and the second cells form an outer peripheral section, and a central section is arranged inside the outer peripheral section in the honeycomb structural body, and
- the honeycomb structure body satisfies a relationship in which a thermal expansion coefficient (PCTE) of the outer peripheral section is greater than a thermal expansion coefficient (CCTE) of the central section.
Dependencies are inferred from the claim text.