Title:
HONEYCOMB STRUCTURAL BODY AND METHOD OF MANUFACTURING THE STRUCTURAL BODY
Document Type and Number:
WIPO Patent Application WO/2003/044338
Kind Code:
A1
Abstract:
A honeycomb structural body (1) and a method of manufacturing the structural body, the honeycomb structural body (1) comprising a plurality of honeycomb segments (12) having outer peripheral walls (7), partition walls (2) disposed on the inside of the outer peripheral walls, and a large number of flow holes (3) formed of the partition walls (2) and passing in axial direction which are formed integrally with each other through connection layers (8), characterized in that, where the heat conductivity and thickness of the outer peripheral walls (7) are κc (W&sol mK) and dc (cm), respectively, those of the connection layers (8) formed on the outer peripheral walls (7) are κa (W&sol mK) and da (cm), respectively, and those of the layers formed by combining the outer peripheral walls with the connection layers are κ(W&sol mK) and d (cm), respectively, the relation therebetween is d&sol [(κa&sol da) &plus (κc&sol dc)] ≥ κ ≥ d&sol [(κa&sol da) &plus (κc&sol dc)] x 0.6, whereby an excessive temperature rise can be suppressed to provide the honeycomb structural body with an excellent durability.
Inventors:
ICHIKAWA SHUICHI (JP)
MASUKAWA NAOSHI (JP)
MASUKAWA NAOSHI (JP)
Application Number:
PCT/JP2002/011903
Publication Date:
May 30, 2003
Filing Date:
November 15, 2002
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
ICHIKAWA SHUICHI (JP)
MASUKAWA NAOSHI (JP)
ICHIKAWA SHUICHI (JP)
MASUKAWA NAOSHI (JP)
International Classes:
B01D39/20; B01D46/00; B01D46/24; B01D53/88; F01N3/02; B01D53/94; B01J35/04; B28B1/00; C04B35/565; C04B35/80; C04B37/00; C04B38/00; F01N3/022; F01N3/28; B01J23/56; B01J37/00; (IPC1-7): F01N3/02; B01J35/04; B01D53/86; B01D39/20
Domestic Patent References:
| WO2001051173A1 | 2001-07-19 |
Foreign References:
| JP2002273137A | 2002-09-24 | |||
| JP2001190917A | 2001-07-17 | |||
| JP2001162119A | 2001-06-19 |
Other References:
See also references of EP 1447535A4
Attorney, Agent or Firm:
Watanabe, Kazuhira (No.8 Kikuboshi Tower Building 20-1, Asakusabashi 3-chome Taito-ku Tokyo, JP)
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