Title:
ハニカムフィルタ
Document Type and Number:
Japanese Patent JP7385511
Kind Code:
B2
Abstract:
A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion. The partition wall defining outflow cells includes an exhaust-gas purifying catalyst at least at a part of a region of 0 to 80% of a thickness of the partition wall and includes a portion that does not include the exhaust-gas purifying catalyst in a region of exceeding 80% and being 100% or less of the thickness of the partition wall, and the partition wall defining the inflow cells is not loaded with the exhaust-gas purifying catalyst on the surface, or is loaded with the exhaust-gas purifying catalyst so that a percentage of a ratio of an area of a range loaded with the exhaust-gas purifying catalyst to a surface area of the partition wall defining the inflow cells is 10% or less.
Inventors:
Kazuya Yuki
Application Number:
JP2020049073A
Publication Date:
November 22, 2023
Filing Date:
March 19, 2020
Export Citation:
Assignee:
Nippon Insulator Co., Ltd.
International Classes:
B01D46/00; B01D39/20; B01D53/94; B01J35/04; C04B38/00; F01N3/022; F01N3/035; F01N3/24; F01N3/28
Domestic Patent References:
| JP2019177317A | ||||
| JP2010110750A | ||||
| JP2012528005A | ||||
| JP2017177007A | ||||
| JP2017185481A |
Attorney, Agent or Firm:
Ippei Watanabe
Sei Koike
Sei Koike