System and method for NOx reduction optimization

Details System and method for NOx reduction optimization System and method for NOx reduction optimization

2011-01-04

2011-01-04

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, C060S277000, C701S123000

Reexamination Certificate

active

07861518

ABSTRACT:
An engine controller determines the cost of operating a combustion engine and the cost of operating an emissions after-treatment device. Accordingly, the engine controller adjusts parameters for operation of the engine and the after-treatment device to ensure cost-effective use of the engine and the after-treatment device while complying with exhaust emissions requirements. In particular, the engine controller receives the price of fuel consumed by the engine and the price of reductant used by the after-treatment device to determine the respective cost of operation. Specifically, the fuel is diesel fuel used in a diesel engine; the reductant is urea use in a urea-based Selective Catalytic Reduction (SCR) system; and the regulated exhaust emissions is nitrogen oxide (NOx) emissions. The engine operating parameters may include cooled exhaust gas recirculation airflow, fuel injection timing, fuel injection pressure, and air-to-fuel ratio. The SCR system operating parameters may include the volume of urea injected.

REFERENCES:
patent: 4063072 (1977-12-01), Sochtig et al.
patent: 4926331 (1990-05-01), Windle et al.
patent: 5280756 (1994-01-01), Labbe
patent: 5788936 (1998-08-01), Subramanian et al.
patent: 5842341 (1998-12-01), Kibe
patent: 5924280 (1999-07-01), Tarabulski
patent: 5968464 (1999-10-01), Peter-Hoblyn et al.
patent: 6119448 (2000-09-01), Emmerling et al.
patent: 6151547 (2000-11-01), Kumar et al.
patent: 6343468 (2002-02-01), Doelling et al.
patent: 6352490 (2002-03-01), Makki et al.
patent: 6438944 (2002-08-01), Bidner et al.
patent: 6487849 (2002-12-01), Bidner et al.
patent: 6487850 (2002-12-01), Bidner et al.
patent: 6553301 (2003-04-01), Chhaya et al.
patent: 6662553 (2003-12-01), Patchett et al.
patent: 6742330 (2004-06-01), Genderen
patent: 6813884 (2004-11-01), Shigapov et al.
patent: 6868294 (2005-03-01), Kouno et al.
patent: 6895747 (2005-05-01), Upadhyay et al.
patent: 7530220 (2009-05-01), Miller et al.
patent: 2003/0200022 (2003-10-01), Streichsbier et al.
patent: 2004/0128982 (2004-07-01), Patchett et al.
patent: 2005/0056004 (2005-03-01), Kakwani et al.
International Search Report, PCT/US07/001480, Sep. 16, 2008.

Affiliated with

Also associated with

Rating

System and method for NOx reduction optimization does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for NOx reduction optimization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for NOx reduction optimization will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2708325