EP 2024615 A1 20090218 - 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
Application
Priority
- EP 2007004676 W 20070525
- DE 102006025050 A 20060527
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
F01N 3/023 (2006.01); F01N 3/08 (2006.01); F01N 11/00 (2006.01); F02D 41/14 (2006.01)
CPC (source: EP US)
F01N 3/023 (2013.01 - EP US); F01N 3/0814 (2013.01 - EP US); F01N 3/0821 (2013.01 - EP US); F01N 3/0828 (2013.01 - EP US); F01N 3/0842 (2013.01 - EP US); F01N 3/0864 (2013.01 - EP US); F01N 3/0871 (2013.01 - EP US); F01N 3/0885 (2013.01 - EP US); F01N 11/002 (2013.01 - EP US); F01N 11/007 (2013.01 - EP US); F01N 13/0097 (2014.06 - EP US); F02D 41/027 (2013.01 - EP US); F02D 41/0295 (2013.01 - EP US); F01N 2560/02 (2013.01 - EP US); F02D 41/1408 (2013.01 - EP US); F02D 2200/0802 (2013.01 - EP US); F02D 2200/0814 (2013.01 - EP US); Y02T 10/40 (2013.01 - EP US)
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
DOCDB simple family (publication)
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
DOCDB simple family (application)
DE 102006025050 A 20060527; CN 200780019443 A 20070525; EP 07725572 A 20070525; EP 2007004676 W 20070525; US 30254008 A 20080525