Title (en)

Exhaust gas treatment system for an internal combustion engine

Title (de)

Abgasbehandlungsanordnung für eine Brennkraftmaschine

Title (fr)

Dispositif de traitement de gaz d'échappement pour moteur à combustion interne

Publication

EP 1353049 A3 20060329 (DE)

Application

EP 02027712 A 20021211

Priority

DE 10216272 A 20020412

Abstract (en)

[origin: EP1353049A2] An exhaust gas treatment device comprises exhaust gas catalysts each supported by a cylindrical catalyst support body (42), a number of groups of tube flanges (17), each provided for coupling to one or more exhaust gas ejection openings (9), and a number of catalyst holding tubes (27) having a first tube region (31) for receiving a catalyst support body. Each catalyst holding tube is coupled to the tube flange of each group of tube flanges via a tube branch. Preferred Features: The catalyst holding tube further comprises a second tube region (39) connected to the first tube region for removing exhaust gas treated in the catalyst support body. The first tube region has a larger inner diameter (D1) than the second tube region. The cross-section of the catalyst support body is the same as or larger than the cross-section (D2) of the second tube region. The first and second tube regions are formed as a one-piece unit.

IPC 8 full level

F01N 13/10 (2010.01); F01N 3/08 (2006.01); F01N 3/28 (2006.01); F01N 13/18 (2010.01)

CPC (source: EP)

F01N 3/2875 (2013.01); F01N 3/2882 (2013.01); F01N 13/10 (2013.01); F01N 13/102 (2013.01); F01N 13/1805 (2013.01); F01N 2260/10 (2013.01); F01N 2330/02 (2013.01); F01N 2330/06 (2013.01); F01N 2450/22 (2013.01); F01N 2450/24 (2013.01)

Citation (search report)

• [XY] US 5881553 A 19990316 - STEENACKERS PIETER DELFINA [BE], et al
• [A] US 3491534 A 19700127 - GARNER WALTER L
• [Y] US 5937516 A 19990817 - DE SOUSA EGAS JOSE [US], et al
• [Y] US 4142864 A 19790306 - ROSYNSKY VICTOR, et al
• [Y] US 4795615 A 19890103 - CYRON THEODOR [DE], et al
• [Y] US 3892537 A 19750701 - GULATI SURESH T, et al
• [A] US 4155980 A 19790522 - BRICH JURGEN [DE], et al
• [A] DE 4103571 A1 19920813 - ROTH TECHNIK GMBH [DE]
• [DA] US 6062020 A 20000516 - BLANCHET SCOTT CHRISTOPHER [US], et al
• [X] PATENT ABSTRACTS OF JAPAN vol. 2002, no. 07 3 July 2002 (2002-07-03)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR

DOCDB simple family (publication)

EP 1353049 A2 20031015; EP 1353049 A3 20060329; DE 10216272 A1 20031106; DE 10216272 B4 20051117; DE 10216272 B9 20060518

DOCDB simple family (application)

EP 02027712 A 20021211; DE 10216272 A 20020412