EP 2904229 A1 20150812 - ELECTRICALLY HEATABLE HONEYCOMB BODY EXTRUDED FROM CERAMIC MATERIAL
Title (en)
ELECTRICALLY HEATABLE HONEYCOMB BODY EXTRUDED FROM CERAMIC MATERIAL
Title (de)
ELEKTRISCH BEHEIZBARER, AUS KERAMISCHEM MATERIAL EXTRUDIERTER WABENKÖRPER
Title (fr)
CORPS EN NID D'ABEILLES EXTRUDÉ À PARTIR DE MATÉRIAU CÉRAMIQUE, À CHAUFFAGE ÉLECTRIQUE
Publication
Application
Priority
- DE 102012109391 A 20121002
- EP 2013070482 W 20131001
Abstract (en)
[origin: WO2014053511A1] The present invention relates to a honeycomb body (4) made of ceramic material having channels (11) separated from one another by walls (10), an anterior end face (2), a posterior end face (3) and a lateral surface (4). A fluid can flow through the honeycomb body in a flow direction (S) from the anterior end face (2) to the posterior end face (3). The honeycomb body (4) is less electrically conductive in at least one first portion (5) than in at least one second portion (6), the portions (5, 6) lying one after another in the flow direction (S). Such a honeycomb body (4) is produced using a method according to which a honeycomb body (4) is produced by extruding poorly electrically conductive ceramic material, the honeycomb body (4) being treated after extrusion in at least one second portion (6, 7) such that the electrical conductivity in said second portion (6, 7) is increased, whereas it remains unchanged in at least one first portion (5), the portions (5, 6, 7) lying one after another in the flow direction (S).
IPC 8 full level
F01N 3/28 (2006.01); F01N 3/022 (2006.01); F01N 3/027 (2006.01); F01N 3/20 (2006.01)
CPC (source: EP US)
F01N 3/0222 (2013.01 - EP US); F01N 3/027 (2013.01 - EP US); F01N 3/2026 (2013.01 - EP US); F01N 3/2828 (2013.01 - EP US); F01N 2330/06 (2013.01 - EP US); F01N 2330/30 (2013.01 - EP US); Y02T 10/12 (2013.01 - EP US)
Citation (search report)
See references of WO 2014053511A1
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102012109391 A1 20140403; EP 2904229 A1 20150812; JP 2015535796 A 20151217; JP 6339577 B2 20180606; US 2015267583 A1 20150924; WO 2014053511 A1 20140410
DOCDB simple family (application)
DE 102012109391 A 20121002; EP 13774114 A 20131001; EP 2013070482 W 20131001; JP 2015533634 A 20131001; US 201314433133 A 20131001