Title:
HONEYCOMB STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2022/210150
Kind Code:
A1
Abstract:
Provided is a honeycomb structure which has a high isostatic strength and with which a reduction in pressure loss can be achieved. The honeycomb structure comprises a columnar honeycomb structure portion 4 that has porous separating walls 1 arranged so as to enclose a plurality of cells 2 forming fluid flow passages extending from a first end surface 11 to a second end surface 12, and an outer peripheral wall 3 arranged so as to surround the separating walls 1, wherein, in a cross section perpendicular to the direction in which the cells 2 of the honeycomb structure portion 4 extend, the shape of each cell 2 is a polygonal shape having arcuate corner portions 6, the thickness T1 [mm] of the separating walls 1 is 0.0500 to 0.1400 mm, the radius of curvature R1 [mm] of the arcuate corner portions 6 of the cells 2 and the thickness T1 [mm] of the separating walls 1 satisfy the relationship in expression (1), the outer diameter of the honeycomb structure portion 4 is 190.5 to 355.6 mm, and the porosity of the separating walls 1 is 20 to 40%. Expression (1): 0.0050≤R1×T1≤0.0150
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Inventors:
IDO YUYA (JP)
HIROSE SHOGO (JP)
HIROSE SHOGO (JP)
Application Number:
PCT/JP2022/013413
Publication Date:
October 06, 2022
Filing Date:
March 23, 2022
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
International Classes:
B01J32/00; B01D53/94; B01J35/04; F01N3/28
Foreign References:
| JP2015500140A | 2015-01-05 | |||
| JP2019166484A | 2019-10-03 | |||
| JP2008246472A | 2008-10-16 | |||
| JP2002046117A | 2002-02-12 | |||
| JP2014046601A | 2014-03-17 | |||
| JPH10264125A | 1998-10-06 |
Attorney, Agent or Firm:
WATANABE Kazuhira (JP)
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