Method for producing a ceramic filter body
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 8, 2013
Grant Date -
Apr 15, 2010
app pub date -
Nov 26, 2007
filing date -
Nov 27, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention concerns a method for producing a ceramic filter body (1) for filtering an exhaust gas stream (2) of a diesel engine. The filter body (1) has planar and porous filter sections (3) that are designed to be passed by the exhaust gas flow (2) in a direction transverse to the face of the filter sections (3). A planar permeable fiber web (4, 4′), in particular of filter paper, is first impregnated with finely ground ceramic material (6) only across sections under formation of a non-impregnated section (12). The only partially ceramic-impregnated fiber web (4, 4′) is subsequently brought into the shape of a blank of the filter body (1) in such a way that the impregnated areas of the fiber web (4, 4′) assume the shape of the filter body (1). The fiber web (4, 4′) impregnated section-wise with the ceramic material (6) and shaped is subsequently sintered under heat in such a way that the fibers (5) of the fiber web are burned off and the ceramic material (6) is sintered under formation of the filter body (1) with filter sections (3) that are continuously porous and gas-permeable between their two faces (7, 8).
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully