Catalytic converter decontamination method

Details Catalytic converter decontamination method Catalytic converter decontamination method

1998-03-05

1999-11-02

Denion, Thomas E

Power plants

Internal combustion engine with treatment or handling of...

Methods

60276, 60277, 60285, 60286, 60295, F01N 300

Patent

active

059747900

ABSTRACT:
A method for restoring exhaust purifying capability of a sulfur contaminated catalytic converter of an internal combustion engine. Catalytic converter efficiency is measured with a first exhaust gas oxygen sensor positioned upstream of the catalytic converter and a second exhaust gas oxygen sensor positioned downstream of the catalytic converter. When catalytic converter efficiency falls below a desired level, catalytic converter temperature is elevated and the engine is operated to produce a rich exhaust gas mixture to reduce the sulfur contamination. Then, to further reduce the sulfur contamination, the engine is operated to produce a lean exhaust mixture.

REFERENCES:
patent: 5357751 (1994-10-01), Orzel
patent: 5402641 (1995-04-01), Katoh et al.
patent: 5537816 (1996-07-01), Ridgway et al.
patent: 5544481 (1996-08-01), Davey et al.
patent: 5601698 (1997-02-01), Innes
patent: 5655363 (1997-08-01), Ito et al.
patent: 5657625 (1997-08-01), Koga et al.
patent: 5724808 (1998-03-01), Ito et al.

Affiliated with

Also associated with

Rating

Catalytic converter decontamination method does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2120537