Exhaust gas purification system for internal combustion engine

Details Exhaust gas purification system for internal combustion engine Exhaust gas purification system for internal combustion engine

1999-04-08

2000-10-10

Walberg, Teresa

Power plants

Internal combustion engine with treatment or handling of...

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

60274, 60285, 123325, 123326, F01N 300

Patent

active

061288993

ABSTRACT:
A system for purifying exhaust gas of an internal combustion engine having a NOx reduction catalyst (NOx absorber) installed in the exhaust system of the engine which absorbs NOx in the exhaust gas generated by the engine in a lean environment where a lean fuel mixture is supplied and desorbs to reduce the absorbed NOx in a rich environment where a rich mixture is supplied. In the system, the rich fuel mixture is supplied for a period immediately before cutoff. With the arrangement, the NOx reduction catalyst desorbs the absorbed NOx and is regenerated to absorb NOx sufficiently. At the same time, the NOx reduction catalyst is regenerated from sulfur poisoning, thereby preventing the NOx purification efficiency from being degraded.

Affiliated with

Also associated with

Rating

Exhaust gas purification system for internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Exhaust gas purification system for internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exhaust gas purification system for internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2248592