EP 1744042 A1 20070117 - Method to regenerate a particulate filter
Title (en)
Method to regenerate a particulate filter
Title (de)
Verfahren zur Regeneration eines Partikelfilters
Title (fr)
Méthode de régénération d'un filtre à particule
Publication
Application
Priority
EP 05106289 A 20050711
Abstract (en)
The Invention relates to a Method to regenerate a particulate filter, in particular a Diesel paticulate filter (DPF), whereby the particulate filter is arranged in an exhaust passage for receiving an exhaust gas from an internal combustion engine, in particular from a Diesel engine, whereby the particulate filter traps particulates contained in the exhaust gas, so that soot is collected inside the particulate filter. The method comprises the steps of (i) initiating an ignition of soot inside the particulate filter, and (ii) actuating a reduction of the exhaust gas mass flow through the filter, preferentially together with increasing concentration of oxygen in the exhaust gas, for example by means of using engine operating conditions with lighter load, whereby the steps (i) and (ii) can be repeated several times with a determined frequency so that a desired degree of filter regeneration is achieved.
IPC 8 full level
F02D 41/02 (2006.01); F01N 3/023 (2006.01); F02D 41/08 (2006.01)
CPC (source: EP)
F01N 3/023 (2013.01); F02D 41/029 (2013.01); F02D 41/08 (2013.01); F01N 2430/06 (2013.01); F02D 41/024 (2013.01); F02D 41/405 (2013.01)
Citation (search report)
- [X] US 2003089102 A1 20030515 - COLIGNON CHRISTOPHE [FR], et al
- [X] EP 1245814 A2 20021002 - MITSUBISHI MOTORS CORP [JP]
- [A] WO 2004042206 A1 20040521 - VOLVO LASTVAGNAR AB [SE], et al
- [A] EP 1205647 A1 20020515 - FORD GLOBAL TECH INC [US]
- [A] EP 1541837 A1 20050615 - NISSAN MOTOR [JP]
- [A] US 2005072141 A1 20050407 - KITAHARA YASUHISA [JP]
Designated contracting state (EPC)
DE FR GB
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1744042 A1 20070117; EP 1744042 A9 20070328; EP 1744042 B1 20120222
DOCDB simple family (application)
EP 05106289 A 20050711