High efficiency conversion of nitrogen oxides in an exhaust...

Details High efficiency conversion of nitrogen oxides in an exhaust... High efficiency conversion of nitrogen oxides in an exhaust...

2005-08-09

2005-08-09

Vo, Hieu T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C060S284000, C060S274000

Reexamination Certificate

active

06928359

ABSTRACT:
A system and method for delivering reductant to a lean NOx catalyst receiving exhaust gases from an internal combustion engine operating at a lean air-fuel ratio in disclosed. Reductant supply is based on an amount of reductant stored within the catalyst. Furthermore, reductant is supplied under prescribed conditions including an exhaust gas concentration upstream of the catalyst of less than 25 ppm NOx or the catalyst at a temperature greater than 300° C.

REFERENCES:
patent: 4403476 (1983-09-01), Johnson et al.
patent: 4854123 (1989-08-01), Inoue
patent: 5201802 (1993-04-01), Hirota et al.
patent: 5369956 (1994-12-01), Daudel et al.
patent: 5522218 (1996-06-01), Lane et al.
patent: 5540047 (1996-07-01), Dahlheim et al.
patent: 5609022 (1997-03-01), Cho
patent: 5609026 (1997-03-01), Berriman et al.
patent: 5628186 (1997-05-01), Schmelz
patent: 5657625 (1997-08-01), Koga et al.
patent: 5785937 (1998-07-01), Neufert et al.
patent: 5845487 (1998-12-01), Fraenkle et al.
patent: 5924280 (1999-07-01), Tarabulski
patent: 5950422 (1999-09-01), Dolling
patent: 6082102 (2000-07-01), Wissler et al.
patent: 6089015 (2000-07-01), Strehlau et al.
patent: 6119451 (2000-09-01), Vogtlin et al.
patent: 6125629 (2000-10-01), Patchett
patent: 6167698 (2001-01-01), King et al.
patent: 6182444 (2001-02-01), Fulton et al.
patent: 6421599 (2002-07-01), Lippa et al.
patent: 6742326 (2004-06-01), Xu et al.
patent: 2003/0037542 (2003-02-01), Xu et al.
patent: 2003/0118960 (2003-06-01), Balmer-Millar et al.
patent: 10041891 (2001-04-01), None
patent: 1069288 (2001-01-01), None
patent: 1 176 289 (2002-01-01), None
patent: 2267365 (1993-12-01), None
patent: 2352651 (2001-02-01), None
patent: 2375059 (2002-11-01), None
patent: WO 99/55446 (1999-11-01), None

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