Method of controlling NOx purification system and NOx...

Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C060S295000

Reexamination Certificate

active

08051642

ABSTRACT:
Method of controlling an NOx purification system provided with an NOx occlusion reduction catalyst and a control unit that conducts NOx regeneration control and sulfur poisoning regeneration control. A degree of deterioration of the NOx occlusion reduction catalyst due to sulfur poisoning is estimated on the basis of an amount of an integrated value of a difference between an oxygen concentration on an outlet side of the NOx occlusion reduction catalyst and an oxygen concentration on an inlet side thereof. In so doing, the amount of sulfur poisoning in the NOx occlusion reduction catalyst is accurately estimated, excessive sulfur poisoning regeneration can be avoided, and fuel consumption can be reduced.

REFERENCES:
patent: 6216449 (2001-04-01), Strehlau et al.
patent: 6357224 (2002-03-01), Kawamoto et al.
patent: 2004/0163381 (2004-08-01), Shirakawa et al.
patent: 1542264 (2004-11-01), None
patent: 11-324654 (1999-11-01), None
patent: 2000-51662 (2000-02-01), None
patent: 2004-51662 (2000-02-01), None
patent: 2000-352307 (2000-12-01), None
patent: 2002-364428 (2002-12-01), None
patent: 2003-301717 (2003-10-01), None
patent: 2004-60518 (2004-02-01), None
patent: 2004-176611 (2004-06-01), None
patent: 2004-257324 (2004-09-01), None
International Search Report for corresponding application PCT/JP2006/323296.
Patent Abstracts of Japan, Publication No. 2000-51662, Published Feb. 22, 2000.
Patent Abstracts of Japan, Publication No. 2004-60518, Published Feb. 26, 2004.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of controlling NOx purification system and NOx... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of controlling NOx purification system and NOx..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of controlling NOx purification system and NOx... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4298375

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.