Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1997-11-24
2000-02-08
Denion, Thomas
Power plants
Internal combustion engine with treatment or handling of...
Methods
60276, 60285, 60295, 123326, F01N 300
Patent
active
060216387
ABSTRACT:
A method and engine control strategy is described that enables improved catalyst performance after having been exposed to severe operating environments. More specifically, rhodium-containing catalysts are reactivated by being subjected to fuel-rich spikes after being exposed to high temperature, excess oxygen conditions which typically arise during programmed fuel-cut engine control strategies. Thus the present invention represents a departure from current control strategies by providing fuel-rich spikes during engine control modes when conventional practice is not to provide rich-fuel spikes.
REFERENCES:
patent: 4106464 (1978-08-01), Yamashita et al.
patent: 4214307 (1980-07-01), Peterson, Jr. et al.
patent: 4434769 (1984-03-01), Otobe et al.
patent: 4491115 (1985-01-01), Otobe et al.
patent: 4539643 (1985-09-01), Suzuki et al.
patent: 4729220 (1988-03-01), Katsunori et al.
patent: 5524432 (1996-06-01), Hansel
patent: 5622048 (1997-04-01), Takashi et al.
patent: 5740669 (1998-04-01), Kinugasa et al.
patent: 5809774 (1998-09-01), Peter-Hoblyn et al.
patent: 5809775 (1998-09-01), Tarabulski et al.
patent: 5848529 (1998-12-01), Katoh et al.
Denion Thomas
Engelhard Corporation
Negin Richard A.
Tran Binh
LandOfFree
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