EP 1583714 A4 20070411 - NOx CONTROL FOR IC ENGINES
Title (en)
NOx CONTROL FOR IC ENGINES
Title (de)
NOx-STEUERUNG FÜR VERBRENNUNGSMOTOREN
Title (fr)
ELIMINATION DE NO SB X /SB POUR MOTEURS A COMBUSTION INTERNE
Publication
Application
Priority
- US 0340263 W 20031217
- US 43433502 P 20021217
Abstract (en)
[origin: WO2004058642A1] A multi-stage NOx reduction system employs catalysts effective at different temperature ranges and can have reagent injectors associated with each, for use in series or in parallel. A controller directs reagent introduction to one catalyst or the other as temperature and other conditions dictate. Valving can redirect exhaust to particular catalyst zones, if necessary.
IPC 8 full level
B01D 53/94 (2006.01); F01N 3/20 (2006.01); F01N 13/02 (2010.01)
CPC (source: EP)
B01D 53/9431 (2013.01); F01N 3/2053 (2013.01); F01N 3/208 (2013.01); F01N 13/009 (2014.06); F01N 13/0093 (2014.06); F01N 3/32 (2013.01); F01N 2240/36 (2013.01); F01N 2560/06 (2013.01); F01N 2570/14 (2013.01); F01N 2610/00 (2013.01); F01N 2610/02 (2013.01); Y02T 10/12 (2013.01)
Citation (search report)
- [PX] EP 1321641 A1 20030625 - ISUZU MOTORS LTD [JP]
- [X] EP 0723805 A2 19960731 - TOYOTA MOTOR CO LTD [JP], et al
- [E] DE 10237777 A1 20040226 - DAIMLER CHRYSLER AG [DE]
- [E] EP 1176292 B1 20060913 - TOYOTA MOTOR CO LTD [JP]
- [DA] HECK R M ET AL: "OPERATING CHARACTERISTICS AND COMERCIAL OPERATING EXPERIENCE WITH HIGH TEMPERATURE SCR NOX CATALYST", ENVIRONMENTAL PROGRESS, AMERICAN INSTITUTE OF CHEMICAL ENGINEERS,, US, vol. 13, no. 4, November 1994 (1994-11-01), pages 221 - 225, XP008075405, ISSN: 0278-4491
- See also references of WO 2004058642A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004058642 A1 20040715; AU 2003299644 A1 20040722; AU 2003299676 A1 20040722; EP 1583714 A1 20051012; EP 1583714 A4 20070411; WO 2004058641 A1 20040715
DOCDB simple family (application)
US 0340263 W 20031217; AU 2003299644 A 20031216; AU 2003299676 A 20031217; EP 03799961 A 20031217; US 0340071 W 20031216