Method for operating three-way catalyst of IC engine

The invention relates to an internal combustion engine (1), especially for a motor vehicle, that is provided with a three-way catalyst (12) that can be impinged upon with nitrogen oxides. The control device (18) is used to switch from a rich-mixture operation to a lean-mixture operation of the inter...

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Main Authors H. BELLMANN, A. KORING, E. SCHNAIBEL
Format Patent
LanguageEnglish
Published 30.04.2003
Edition7
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
ENGINE PLANTS IN GENERAL
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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Abstract The invention relates to an internal combustion engine (1), especially for a motor vehicle, that is provided with a three-way catalyst (12) that can be impinged upon with nitrogen oxides. The control device (18) is used to switch from a rich-mixture operation to a lean-mixture operation of the internal combustion engine (1). The control device (18) allows an extrapolation from the NOx emissions to the aging of the three-way catalyst (12).
AbstractList The invention relates to an internal combustion engine (1), especially for a motor vehicle, that is provided with a three-way catalyst (12) that can be impinged upon with nitrogen oxides. The control device (18) is used to switch from a rich-mixture operation to a lean-mixture operation of the internal combustion engine (1). The control device (18) allows an extrapolation from the NOx emissions to the aging of the three-way catalyst (12).
Author H. BELLMANN
E. SCHNAIBEL
A. KORING
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Snippet The invention relates to an internal combustion engine (1), especially for a motor vehicle, that is provided with a three-way catalyst (12) that can be...
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SubjectTerms BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
ENGINE PLANTS IN GENERAL
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
Title Method for operating three-way catalyst of IC engine
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