Honeycomb structure

Details Honeycomb structure Honeycomb structure

2007-03-26

2008-09-30

Speer, Timothy M. (Department: 1794)

Stock material or miscellaneous articles

Structurally defined web or sheet

Honeycomb-like

C428S117000

Reexamination Certificate

active

07429416

ABSTRACT:
There is disclosed a honeycomb structure which solves a problem of antinomy that it is difficult to satisfy both of a high temperature rise performance and a high thermal capacity at the same time and which is disposed at a previous stage of a filter for trapping particulate matters (PM) discharged from a diesel engine so that regeneration of the PM trapped by the filter can smoothly be completed and an exhaust gas can efficiently be purified. In a honeycomb structure in which a plurality of cells arranged in parallel with one another to communicate between two end surfaces of the honeycomb structure are formed by a plurality of partition walls, the plurality of partition walls are made of a ceramic, and constituted of partition walls having two or more types of thicknesses.

REFERENCES:
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patent: 2004/0123573 (2004-07-01), Ichikawa et al.
patent: 2004/0206044 (2004-10-01), Kondo et al.
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patent: A-54110189 (1979-08-01), None
patent: A 2002-326035 (2002-11-01), None
patent: A 2003-181233 (2003-07-01), None

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