Honeycomb structure and method of manufacturing the same

Details Honeycomb structure and method of manufacturing the same Honeycomb structure and method of manufacturing the same

2007-10-23

2007-10-23

Drodge, Joseph (Department: 1723)

Liquid purification or separation

Filter

Material

C055S523000, C126S628000, C126S630000, C428S116000, C428S117000, C264S628000, C264S630000

Reexamination Certificate

active

10819154

ABSTRACT:
There are disclosed a honeycomb structure which is preferably usable as a filter, for example, for trapping particulates in an exhaust gas of an internal combustion engine, boiler or the like or for filtering liquids such as city water and sewage and in which an increase of a pressure loss at a use time is inhibited. A honeycomb structure1comprises: two end surfaces5consisting of first and second end surfaces; a porous body2in which a plurality of fluid channels3extending to a second end surface5bfrom a first end surface5aare formed; and plugging members4for plugging end portions6on end surfaces5side of the fluid channels3. One or more of first fluid channels3aare formed in a shape in which an opening area (area (S1)) in the first end surface5ais larger than a sectional area (area (S2)) vertical to a central axis in a position in a predetermined depth from the first end surface5aand in which a sectional area (area (S3)) vertical to the central axis in a middle between the first end surface5aand the position in the predetermined depth gradually decreases to the area (S2) from the area (S1).

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