EP 0959988 A2 19991201 - HONEYCOMB BODY WITH CROSS-SECTIONAL AREA FRAMED IN THE INTERIOR, PARTICULARLY FOR SMALL-POWER MOTORS
Title (en)
HONEYCOMB BODY WITH CROSS-SECTIONAL AREA FRAMED IN THE INTERIOR, PARTICULARLY FOR SMALL-POWER MOTORS
Title (de)
WABENKÖRPER MIT IM INNEREN EINGERAHMTEM QUERSCHNITTSBEREICH, INSBESONDERE FÜR KLEINMOTOREN
Title (fr)
CORPS EN NID-D'ABEILLES AVEC ZONE DE SECTION TRANSVERSALE ENCADREE A L'INTERIEUR, EN PARTICULIER POUR PETITS MOTEURS
Publication
Application
Priority
- DE 19704689 A 19970207
- EP 9800570 W 19980203
Abstract (en)
[origin: DE19704689A1] The invention relates to a catalyst (1) in a housing (3) for an exhaust gas system of an internal combustion engine, in particular of a small-power motor, in which the catalyst (1) has at least one structured sheet metal (2) comprising a catalytically active material, said sheet metal being undulated, having channels through which the exhaust gas can flow, and being located at least partially on the housing (3). The invention is characterized in that the structure of the sheet metal (2) is such that, when seen from a cross-section of the housing (3), a cross-sectional area framed by closed channels (5) forms at least half the total cross-section of the housing (3), while the catalyst (1) has at most two layers (11). The invention further relates to a method for the production of a catalyst support body which is fitted in an exhaust system of an internal combustion engine, in particular in a sound absorber of a small-power motor. This method is characterized in that a structured sheet metal is wound obliquely around an at least partially curved, oblong body; at least part of the oblong body having the wound sheet metal is then cut into several sections; and each section forms a catalyst support body.
IPC 1-7
IPC 8 full level
B01J 35/02 (2006.01); B01D 53/86 (2006.01); B01J 35/00 (2006.01); B01J 35/04 (2006.01); B21C 37/22 (2006.01); B21D 53/84 (2006.01); F01N 3/28 (2006.01); F01N 13/18 (2010.01); F01N 13/02 (2010.01)
CPC (source: EP KR US)
B21C 37/22 (2013.01 - EP KR US); B21D 53/84 (2013.01 - EP KR US); F01N 3/2807 (2013.01 - EP US); F01N 3/281 (2013.01 - EP KR US); F01N 3/2842 (2013.01 - EP KR US); F01N 3/2882 (2013.01 - EP KR US); F01N 13/009 (2014.06 - EP US); F01N 13/0093 (2014.06 - EP KR US); F01N 13/0097 (2014.06 - EP KR US); F01N 13/1833 (2013.01 - EP KR US); F01N 13/185 (2013.01 - EP KR US); F01N 13/1872 (2013.01 - EP KR US); F01N 2330/04 (2013.01 - EP KR US); F01N 2330/32 (2013.01 - EP US); F01N 2330/323 (2013.01 - EP KR US); F01N 2330/42 (2013.01 - EP KR US); F01N 2450/18 (2013.01 - EP KR US); Y10T 428/1234 (2015.01 - EP US)
Citation (search report)
See references of WO 9834726A2
Designated contracting state (EPC)
DE IT
DOCDB simple family (publication)
DE 19704689 A1 19980813; AU 6394198 A 19980826; CN 1157530 C 20040714; CN 1260860 A 20000719; DE 59808277 D1 20030612; EP 0959988 A2 19991201; EP 0959988 B1 20030507; JP 2001511228 A 20010807; JP 4137185 B2 20080820; KR 100510605 B1 20050831; KR 20000070873 A 20001125; MY 118792 A 20050131; US 6485694 B1 20021126; WO 9834726 A2 19980813; WO 9834726 A3 19981112
DOCDB simple family (application)
DE 19704689 A 19970207; AU 6394198 A 19980203; CN 98802347 A 19980203; DE 59808277 T 19980203; EP 9800570 W 19980203; EP 98909383 A 19980203; JP 53374698 A 19980203; KR 19997007138 A 19990806; MY PI9706351 A 19971227; US 37023299 A 19990809