Process and system for controlling the mixture composition...

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

Reexamination Certificate

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C060S274000, C060S297000

Reexamination Certificate

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06871492

ABSTRACT:
A process and a system are used for controlling the mixture composition for an Otto engine with an NOxstorage catalyst during a regeneration phase. The process includes controlling, to the value of one, a λ-value (λM) of an exhaust gas fed to the NOxstorage catalyst during a regeneration phase as a function of a λ-value (λK) of an exhaust gas emitted by the NOxstorage catalyst. The system includes a control device for controlling, to the value of one, a λ-value (λM) of the exhaust gas fed to the NOxstorage catalyst during the regeneration phase as a function of the λ-value (λK) of the exhaust gas emitted by the NOxstorage catalyst.

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patent: 5771685 (1998-06-01), Hepburn
patent: 6105365 (2000-08-01), Deeba et al.
patent: 6161377 (2000-12-01), Boegner et al.
patent: 6167695 (2001-01-01), Itou et al.
patent: 6327848 (2001-12-01), Poggio et al.
patent: 6389802 (2002-05-01), Berger et al.
patent: 0 884 458 (1998-12-01), None
patent: WO 9855742 (1998-12-01), None

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