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Title:
EXHAUST EMISSION CONTROL METHOD, EXHAUST GAS FILTER AND EXHAUST GAS FILTER PURIFYING DEVICE USING THE SAME
Document Type and Number:
Japanese Patent JPH1030428
Kind Code:
A
Abstract:

To provide exhaust emission control method, an exhaust gas filter and an exhaust gas filter purifying device which reduce a particulate capturing rate on an outer peripheral part of the exhaust gas filter, and prevents remaining of combustible materials at the time of regeneration.

For exhaust emission control, blocking portions 4 are formed on one end of each of through-hole partitions 2 which are formed in a honeycomb shape integrally with an outer peripheral wall 1, and each of through-holes 3 partitioned by the partitions 2. An exhaust gas filter on which the blocking portions are formed in a lattice-like form is used for purifying exhaust gas. In this case, a particulates capturing rate in the through-hole 3 and the through- hole partition 2 adjacent to the outer peripheral wall 1 is less than that in other portions. The exhaust gas filter has on its one end face second blocking portions 5 formed on the through-holes 3 adjacent to the outer peripheral wall 1 and blocking portion 4.


Inventors:
KUWAMOTO YOSHINOBU
FUKUDA TATSUO
FUJIWARA YASUHIRO
Application Number:
JP18913996A
Publication Date:
February 03, 1998
Filing Date:
July 18, 1996
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
F01N3/02; B01D46/24; F01N3/021; F01N3/022; F01N3/023; F01N3/025; F01N3/027; F01N3/28; F01N9/00; F01N3/30; F01N3/32; F01N13/04; (IPC1-7): F01N3/02; F01N3/02
Attorney, Agent or Firm:
Tomoyuki Takimoto (1 person outside)