EP 2254682 A2 20101201 - GAS FILTER STRUCTURE HAVING A VARIABLE WALL THICKNESS
Title (en)
GAS FILTER STRUCTURE HAVING A VARIABLE WALL THICKNESS
Title (de)
GASFILTERSTRUKTUR MIT EINER VARIABLEN WANDDICKE
Title (fr)
STRUCTURE DE FILTRATION D'UN GAZ A EPAISSEUR DE PAROI VARIABLE
Publication
Application
Priority
- FR 2009050383 W 20090310
- FR 0851580 A 20080311
Abstract (en)
[origin: WO2009115753A2] The invention relates to a structure for filtering gases laden with particulates, of the honeycomb type and comprising a set of longitudinal adjacent channels of mutually parallel axes separated by porous filtering walls, said channels being alternately blocked off at one or other of the ends of the structure so as to define entry channels and exit channels for the gas to be filtered, and so as to force said gas to pass through the porous walls separating the entry and exit channels, said structure being characterized in that the entry and exit channels share between them at least one wall having an average thickness d which is constant over the entire length of the filter structure, in that the entry or exit channels share between them at least one wall having an average thickness e which is constant over the entire length of the filter structure and in that the ratio e/d is strictly greater than 1.
IPC 8 full level
B01D 46/24 (2006.01); F01N 3/022 (2006.01)
CPC (source: EP KR US)
B01D 46/24 (2013.01 - KR); B01D 46/247 (2013.01 - EP US); B01D 46/2474 (2013.01 - EP US); B01D 46/2478 (2021.08 - EP US); B01D 46/2482 (2021.08 - EP US); B01D 46/2484 (2021.08 - EP US); B01D 46/2488 (2021.08 - EP US); B01D 46/249 (2021.08 - EP US); B01D 46/2492 (2021.08 - EP US); B01D 46/2494 (2021.08 - EP US); B01D 46/2498 (2021.08 - EP); B01J 35/56 (2024.01 - KR); F01N 3/022 (2013.01 - KR); F01N 3/0222 (2013.01 - EP US); B01D 46/2498 (2021.08 - US); B01D 2279/30 (2013.01 - EP US); Y02T 10/12 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
FR 2928562 A1 20090918; FR 2928562 B1 20100813; EP 2254682 A2 20101201; JP 2011513059 A 20110428; KR 20100138913 A 20101231; US 2011030357 A1 20110210; WO 2009115753 A2 20090924; WO 2009115753 A3 20091203
DOCDB simple family (application)
FR 0851580 A 20080311; EP 09721517 A 20090310; FR 2009050383 W 20090310; JP 2010550239 A 20090310; KR 20107020122 A 20090310; US 92054809 A 20090310