Global Patent Index - EP 2024615 A1

EP 2024615 A1 2009-02-18 - METHOD AND DEVICE FOR OPERATING AN EXHAUST-GAS AFTERTREATMENT SYSTEM

Title (en)

METHOD AND DEVICE FOR OPERATING AN EXHAUST-GAS AFTERTREATMENT SYSTEM

Title (de)

VERFAHREN UND VORRICHTUNG ZUM BETRIEB EINER ABGASNACHBEHANDLUNGSANLAGE

Title (fr)

PROCÉDÉ ET DISPOSITIF POUR FAIRE FONCTIONNER UN SYSTÈME DE RETRAITEMENT DE GAZ D'ÉCHAPPEMENT

Publication

EP 2024615 A1 (DE)

Application

EP 07725572 A

Priority

  • EP 2007004676 W
  • DE 102006025050 A

Abstract (en)

[origin: DE102006025050A1] In a process to operate an automotive exhaust system (1), oxygen is fed to and surrendered from a holder (8) to an exhaust gas treatment unit (7). In the process, a quantity of oxygen is determined within the oxygen holder and is used to modify the rich/lean cycle in accordance with the varying quantity of oxygen so determined. The quantity of oxygen is determined within the oxygen holder and is used as a parameter for setting the rich/lean cycle. The cyclical change in the quantity of oxygen stored is used to influence the the exhaust gas temperature or the oxygen storage unit. Further claimed is an automotive exhaust gas treatment assembly in which the temperature is regulated in the oxygen holder (8), and/or sulfur is removed without interruption during the switch between lean and rich operation.

IPC 8 full level (invention and additional information)

F01N 3/08 (2006.01); F01N 3/023 (2006.01); F01N 11/00 (2006.01); F02D 41/14 (2006.01)

CPC (invention and additional information)

F01N 3/0814 (2013.01); F01N 3/023 (2013.01); F01N 3/0821 (2013.01); F01N 3/0828 (2013.01); F01N 3/0842 (2013.01); F01N 3/0864 (2013.01); F01N 3/0871 (2013.01); F01N 3/0885 (2013.01); F01N 11/002 (2013.01); F01N 11/007 (2013.01); F01N 13/0097 (2014.06); F02D 41/027 (2013.01); F02D 41/0295 (2013.01); F01N 2560/02 (2013.01); F02D 41/1408 (2013.01); F02D 2200/0802 (2013.01); F02D 2200/0814 (2013.01); Y02T 10/47 (2013.01)

Citation (search report)

See references of WO 2007137783A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

DE 102006025050 A1 20071129; DE 102006025050 B4 20140403; CN 101454547 A 20090610; CN 101454547 B 20120822; EP 2024615 A1 20090218; US 2009151323 A1 20090618; WO 2007137783 A1 20071206

INPADOC legal status


2011-07-13 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20101201

2009-02-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081218

2009-02-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

2009-02-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK RS