Methods and systems for a diesel oxidation catalyst

Methods and systems are provided for a diesel oxidation catalyst. In one example, the diesel oxidation catalyst comprises a washcoat with different catalytically active portions for reacting with one or more of carbon containing compounds and NOx. The diesel oxidation catalyst is located upstream of...

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Bibliographische Detailangaben
Hauptverfasser: Lambert, Christine Kay, Dobson, Douglas Allen, Chanko, Timothy Brian
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Methods and systems are provided for a diesel oxidation catalyst. In one example, the diesel oxidation catalyst comprises a washcoat with different catalytically active portions for reacting with one or more of carbon containing compounds and NOx. The diesel oxidation catalyst is located upstream of a particulate filter in an exhaust passage.