DEDICATED EXHAUST GAS RECIRCULATING (EGR) SYSTEM

Systems and apparatuses include an engine having a cylinder and a dedicated cylinder, an air intake system providing fresh air to the engine, a fueling system providing fuel to the cylinder and the dedicated cylinder, an exhaust gas recirculation pathway from the dedicated cylinder to the air intake...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Stroh, David J, Tamaskar, Shashank, Perfetto, Anthony Kyle
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:Systems and apparatuses include an engine having a cylinder and a dedicated cylinder, an air intake system providing fresh air to the engine, a fueling system providing fuel to the cylinder and the dedicated cylinder, an exhaust gas recirculation pathway from the dedicated cylinder to the air intake system, and a controller structured to control the fueling system and the air intake system to provide a lean air-to-fuel mixture to the dedicated cylinder during a low-load condition, and to provide a rich air-to-fuel mixture to the dedicated cylinder after a tip-in event.