Honeycomb structure

Patent metadata

Field	Value
Publication number	US-9340463-B2
Application number	US-201414200818-A
Country	US
Kind code	B2
Filing date	Mar 7, 2014
Priority date	Mar 18, 2013
Publication date	May 17, 2016
Grant date	May 17, 2016

Abstract

A honeycomb structure includes a honeycomb structure body constituted of a first region which is an inside region and a second region which is an outside region surrounding a periphery of the first region. An open area ratio in the first region is 83% or more and a porosity of partition walls is from 20 to 60%. A thickness t 1 of the partition walls constituting the first region is 0.11 mm or less, a thickness t 2 of the partition walls constituting the second region is larger than the thickness t 1 of the partition walls, a ratio (t 3 /t 1 ) between a thickness t 3 of the partition walls forming first complete cells from the outermost periphery of the honeycomb structure body toward a center thereof in the second region and the thickness t 1 of the partition walls is from 1.2 to 1.4, and a partition wall strength index A is 4.0 or more.

First claim

What is claimed is:

1. A honeycomb structure comprising a honeycomb structure body having partition walls to define and form a plurality of cells extending from a first end surface as one end surface to a second end surface as the other end surface to become through channels of a fluid,
wherein in a cross section perpendicular to an extending direction of the cells, the honeycomb structure body is constituted of a first region which is an inside region and a second region which is…

Assignees

• Ngk Insulators Ltd

Inventors

• Aoyama Tomokatsu

Classifications

• B01D2046/2496

  Operations & Transport · mapped topic

• C04B2235/3217

  Chemistry & Metallurgy · mapped topic

• C04B35/111

  Chemistry & Metallurgy · mapped topic

• C04B2235/3418

  Chemistry & Metallurgy · mapped topic

• C04B35/565

  Chemistry & Metallurgy · mapped topic