Title:
ハニカム構造体
Document Type and Number:
Japanese Patent JP4890903
Kind Code:
B2
Abstract:
There is disclosed a honeycomb structure that is useful as a filter for trapping an exhaust gas, in particular, a diesel particulate filter (DPF) for trapping particulate matter (particulates) in an exhaust gas from a diesel engine, that prevents displacement of honeycomb segments during canning or use (under vibration) and that effectively prevents defects such as a crack due to thermal stress during use and regeneration. The honeycomb structure includes a honeycomb segment joined body having a plurality of honeycomb segments 2 joined integrally at respective joining surfaces via a joining material layer 20; and an outer peripheral coating layer covering an outer peripheral surface of the honeycomb segment joined body, the honeycomb structure having such a structure that a plurality of cells acting as fluid passageways are arranged in parallel to each other in the direction of a center axis, wherein sides 11 of a cross-sectional shape of the plurality of honeycomb segments 2 in a direction perpendicular to the center axis direction have a curvature equal to or greater than 1.
Inventors:
Wataru Shionoya
Application Number:
JP2006087253A
Publication Date:
March 07, 2012
Filing Date:
March 28, 2006
Export Citation:
Assignee:
Nippon Insulator Co., Ltd.
International Classes:
B01D39/20; B01D46/00; F01N3/022; F01N3/28
Domestic Patent References:
| JP2003227327A | ||||
| JP2001009816A | ||||
| JP2002301325A | ||||
| JP2002282705A | ||||
| JP2004216375A | ||||
| JP2008510924A | ||||
| JP2001096117A | ||||
| JP2007524030A | ||||
| JP9313849A |
Foreign References:
| WO2006024792A1 | ||||
| WO2004024293A1 | ||||
| WO2005047210A1 |
Attorney, Agent or Firm:
Ippei Watanabe