Optimal fuel profiles

Details Optimal fuel profiles Optimal fuel profiles

2006-07-27

2009-12-01

Tran, Binh Q. (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S274000, C060S285000, C060S295000, C060S301000, C060S303000, C048S1970FM

Reexamination Certificate

active

07624570

ABSTRACT:
A method is provided for regenerating a LNT in a diesel engine exhaust aftertreatment system. Typically, the aftertreatment system comprises a fuel reformer, a LNT, and a SCR catalyst in that order. Over the course of the regeneration, the concentration or flow rate of syn gas is increased, peaked, and then reduced. Preferably, the syn gas concentration or flow rate and the fuel reformer temperature are simultaneously controlled using at least a fuel injector and an engine intake air throttle. The pattern of increasing the syn gas concentration or flow rate during a first part of the regeneration and decreasing the syn gas concentration of flow rate in a latter part of the regeneration reduces the fuel penalty for the regeneration and improves the ammonia production rate as compared to a system in which the syn gas concentration or flow rate is essentially constant throughout the regeneration.

REFERENCES:
patent: 5778667 (1998-07-01), Kinugasa et al.
patent: 6553757 (2003-04-01), Surnilla et al.
patent: 6732507 (2004-05-01), Stanglmaier et al.
patent: 6758036 (2004-07-01), Molinier
patent: 6763657 (2004-07-01), Wachi et al.
patent: 6854264 (2005-02-01), Elwart et al.
patent: 7246486 (2007-07-01), Nakagawa et al.
patent: 7386977 (2008-06-01), Ancimer et al.
patent: 2003/0101713 (2003-06-01), Betta et al.
patent: 2003/0140622 (2003-07-01), Taylor, III et al.
patent: 2004/0050037 (2004-03-01), Betta et al.
patent: 2004/0076565 (2004-04-01), Gandhi et al.
patent: 2005/0022450 (2005-02-01), Tan et al.
patent: 2007/0130915 (2007-06-01), Beckmann
patent: 102004018393 (2005-11-01), None
patent: WO 2004/061278 (2004-07-01), None
patent: WO 2004/090296 (2004-10-01), None
patent: WO 2005/049984 (2005-06-01), None

Affiliated with

Also associated with

Rating

Optimal fuel profiles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optimal fuel profiles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimal fuel profiles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4067579