Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2005-12-21
2010-10-05
Nguyen, Tu M (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
C060S274000, C060S276000, C060S295000, C060S301000, C060S303000
Reexamination Certificate
active
07805929
ABSTRACT:
A method of controlling ammonia and nitric oxides production for selective catalytic reduction systems is provided. The method may include producing an ammonia-containing gas stream having an ammonia concentration. The method may further include operating an engine to continuously produce a NOx-containing gas stream having a NOx concentration. The ammonia-containing gas stream may be supplied to a first exhaust system location upstream of a selective catalytic reduction catalyst, and the ammonia concentration may be determined at a first time. The NOx-containing gas stream may be supplied to a second exhaust system location upstream of the selective catalytic reduction catalyst, and the NOx concentration may be evaluated at a second time which is later than the first time. The NOx concentration may be adjusted based on the ammonia concentration at the first time.
REFERENCES:
patent: 5047220 (1991-09-01), Polcer
patent: 5628186 (1997-05-01), Schmelz
patent: 5714130 (1998-02-01), Saito et al.
patent: 5746052 (1998-05-01), Kinugasa et al.
patent: 5950422 (1999-09-01), Dölling
patent: 5964088 (1999-10-01), Kinugasa et al.
patent: 6047542 (2000-04-01), Kinugasa et al.
patent: 6048510 (2000-04-01), Zauderer
patent: 6063350 (2000-05-01), Tarabulski et al.
patent: 6092367 (2000-07-01), Dölling
patent: 6109024 (2000-08-01), Kinugasa et al.
patent: 6119452 (2000-09-01), Kinugasa et al.
patent: 6122910 (2000-09-01), Hoshi et al.
patent: 6128898 (2000-10-01), Sakurai et al.
patent: 6133185 (2000-10-01), Kinugasa et al.
patent: 6146605 (2000-11-01), Spokoyny
patent: 6176079 (2001-01-01), Konrad et al.
patent: 6269633 (2001-08-01), van Nieuwstadt et al.
patent: 6289672 (2001-09-01), Katoh et al.
patent: 6334986 (2002-01-01), Gieshoff et al.
patent: 6338244 (2002-01-01), Guenther et al.
patent: 6345496 (2002-02-01), Fuwa et al.
patent: 6403046 (2002-06-01), Spokoyny
patent: 6415602 (2002-07-01), Patchett et al.
patent: 6422005 (2002-07-01), Dölling et al.
patent: 6470673 (2002-10-01), van Nieuwstadt et al.
patent: 6475453 (2002-11-01), Mathes et al.
patent: 6662552 (2003-12-01), Gunther et al.
patent: 6732507 (2004-05-01), Stanglmaier
patent: 6739125 (2004-05-01), Mulligan
patent: 6833272 (2004-12-01), Binder et al.
patent: 7213395 (2007-05-01), Hu et al.
patent: 7475536 (2009-01-01), Wada et al.
patent: 7485273 (2009-02-01), Gandhi et al.
patent: 2001/0014298 (2001-08-01), Neufert
patent: 2002/0102197 (2002-08-01), Cooper et al.
patent: 2002/0148220 (2002-10-01), Patchett et al.
patent: 2003/0109047 (2003-06-01), Valentine
patent: 2004/0076565 (2004-04-01), Gandhi et al.
patent: 2004/0126286 (2004-07-01), deRuyter
patent: 2004/0159096 (2004-08-01), Yasui et al.
patent: 2005/0000220 (2005-01-01), Zauderer
patent: 2005/0008547 (2005-01-01), Kikawa et al.
patent: WO 87/02025 (1987-04-01), None
patent: WO 98/28070 (1998-07-01), None
patent: WO 2004/058642 (2004-07-01), None
Caterpillar Inc
Finnegan, Henderson, Farabow, Garrett & Dunner LLC
Nguyen Tu M
LandOfFree
Selective catalytic reduction system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Selective catalytic reduction system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective catalytic reduction system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4231241