Control strategy for lean-to-rich transitions in an internal...

Details Control strategy for lean-to-rich transitions in an internal... Control strategy for lean-to-rich transitions in an internal...

2005-08-23

2005-08-23

Argenbright, Tony M. (Department: 3747)

Power plants

Internal combustion engine with treatment or handling of...

Methods

C060S285000, C060S602000, C123S399000, C123S443000, C123S568210

Reexamination Certificate

active

06931837

ABSTRACT:
An engine (20) and an engine control strategy (FIGS.2and3) for lean-to-rich transitions, such transitions being useful for various purposes, one of which is purging, or regenerating, a NOx adsorber (36) in the engine exhaust system.

REFERENCES:
patent: 5826427 (1998-10-01), Yanagihara et al.
patent: 6012428 (2000-01-01), Yano et al.
patent: 6543219 (2003-04-01), Surnilla
patent: 6619033 (2003-09-01), Adler et al.
patent: 2003/0110760 (2003-06-01), Shirakawa
patent: 2003/0150425 (2003-08-01), Adler et al.

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