DOSING AND MIXING ARRANGEMENT FOR USE IN EXHAUST AFTERTREATMENT

A method for causing exhaust gas flow to flow at least 270 degrees in a first direction about a perforated tube (40) using a baffle plate (52) having a main body with a plurality of flow-through openings (60) and a plurality of louvers (62) positioned adjacent to the flow-through openings. The metho...

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Hauptverfasser: DE RUDDER, , Korneel, LE MERDY, Stephane
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A method for causing exhaust gas flow to flow at least 270 degrees in a first direction about a perforated tube (40) using a baffle plate (52) having a main body with a plurality of flow-through openings (60) and a plurality of louvers (62) positioned adjacent to the flow-through openings. The method includes deflecting a first portion of the exhaust gas flow with the main body of the baffle plate. The method also includes allowing a second portion of the exhaust gas flow to flow through the flow-through openings of the baffle plate. The method also deflects the second portion of the exhaust gas flow at a downstream side (58) of the main body with the louvers hereby causing the second portion of the exhaust gas flow to flow in the first direction about the perforated tube.