Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FILTER WITH CATALYST, METHOD FOR MANUFACTURING THE SAME AND EXHAUST GAS CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP2009022953
Kind Code:
A
Abstract:

To provide a filter with a catalyst which shows no change in the removal rate of soot even when regeneration of the filter is repeated for certain times but can reduce a noble metal catalyst and which has low pressure loss.

The ceramic filter has a honeycomb structure having a plurality of through holes partitioned by cell walls in which both ends of the structure are alternately sealed with a sealant, and a support material and a catalyst are held on the surface of the cell walls. A specified amount of the support material is held in the one end side of the filter on the surface of the cell walls of the ceramic filter and the amount of the support material is relatively decreased along the direction to the other end. Moreover, the ceramic filter with the catalyst is provided with a catalyst support part.


Inventors:
KOJIMA MASAAKI
TAOKA NORIYUKI
OSHIMI YUKIO
Application Number:
JP2008215522A
Publication Date:
February 05, 2009
Filing Date:
August 25, 2008
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
IBIDEN CO LTD
International Classes:
B01D39/14; B01D39/20; B01D53/94; B01J35/04; B01J37/02; B01J37/08; F01N3/02; F01N3/28
Domestic Patent References:
JPS63122615U1988-08-09
JPH03207451A1991-09-10
JP2001098925A2001-04-10
JPH10202105A1998-08-04
JPS57117326A1982-07-21
JPH09220423A1997-08-26
JP2001137714A2001-05-22
JPH04113724U1992-10-06
JPS6264808U1987-04-22
JPH01127920U1989-08-31
JPH0440235A1992-02-10
JPS63122615U1988-08-09
JPH03207451A1991-09-10
JP2001098925A2001-04-10
JPH10202105A1998-08-04
JPS57117326A1982-07-21
JPH09220423A1997-08-26
JP2001137714A2001-05-22
JPH04113724U1992-10-06
JPS6264808U1987-04-22
JPH01127920U1989-08-31
JPH0440235A1992-02-10
Attorney, Agent or Firm:
Yasuo Yasutomi
Toki
Tatsuya Sasaki
Fujii Kosuke



 
Previous Patent: VALVE

Next Patent: EXTRACTION SYSTEM, EXTRACTION METHOD AND SYSTEM AND METHOD FOR SYNTHESIZING PROTEIN