Reducing agent dosing arrangement and exhaust gas system

The present invention relates to an exhaust gas system for an internal combustion engine (2). The exhaust gas system comprises a turbocharger turbine (6) and an exhaust gas duct (14) arranged downstream of the turbocharger turbine (6), the exhaust gas duct (14) being defined by a cylindrical duct wa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Bremberg, Per, Engelke, Peter, Gawell, Anders, Källkvist, Kurre, Lindfors, Max
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:The present invention relates to an exhaust gas system for an internal combustion engine (2). The exhaust gas system comprises a turbocharger turbine (6) and an exhaust gas duct (14) arranged downstream of the turbocharger turbine (6), the exhaust gas duct (14) being defined by a cylindrical duct wall with a longitudinally extending central axis (32). The exhaust gas system further comprises a dosing arrangement (20) for a reducing agent. The dosing arrangement comprises a dosing unit (22) comprising a valve means, and a dosing pipe (24) having an inlet end in contact with the dosing unit (22) and an outlet end (30) arranged in contact with exhaust gases in the exhaust gas duct (14), wherein the outlet end (30) of the dosing pipe is arranged in proximity to the longitudinally extending central axis (32) of the exhaust duct (14). The dosing arrangement further comprises an exhaust gas flow collector (26) fluidly connected to the dosing pipe (24) and arranged at a radial distance from the outlet end (30) of the dosing pipe in proximity to the cylindrical duct wall.