Purem Gmbh

Konstantin Kappes

Michael Mayer

Wolfgang Datz

Arthur Wieland

Tobias Wolf

Heike Többen

Philipp Weinmann

Christoph Illi

An exhaust gas treatment arrangement for an exhaust gas system of an internal combustion engine includes a first exhaust gas flow path leading from an exhaust gas inlet provided on a housing to an exhaust gas outlet provided on the housing and a second exhaust gas flow path leading from the exhaust gas inlet to the exhaust gas outlet. The second exhaust gas flow path is separate from the first exhaust gas flow path. A flow path switching unit changes the exhaust gas stream parts, which are conducted in the first exhaust gas flow path and the second exhaust gas flow path. A reactant supply device supplies reactant into the second exhaust gas flow path downstream of the exhaust gas inlet and an SCR catalyst arrangement is provided in the second exhaust gas flow path upstream of the exhaust gas outlet.

Exhaust gas treatment arrangement for an exhaust gas system of an internal combustion engine

An exhaust gas/reactant mixing assembly for an exhaust gas system of an internal combustion engine includes a mixing channel defining a longitudinal axis and extending in the direction thereof. A reactant delivery unit delivers reactant (R) into the mixing channel and an exhaust gas supply channel is arranged upstream of the mixing channel. The exhaust gas supply channel opens into the mixing channel at an opening channel region, wherein the opening channel region has at least two opening channel portions opening into the mixing channel.

Exhaust gas/reactant mixing assembly

A mixer assembly unit, for an exhaust system exhaust gas treatment unit of an internal combustion engine, mixes exhaust gas discharged by the internal combustion engine with reactant. A mixing section (), downstream in relation to a reactant release device (), mixes exhaust gas, flowing in an exhaust gas flow direction, with reactant. The mixing section includes a core flow duct (), extending in a direction of a mixing section longitudinal axis (L), through which a first exhaust gas partial stream (T) flows. A second exhaust gas partial stream (T) flows through a jacket flow duct () surrounding the core flow duct and separated from the core flow duct by an inner wall (). The reactant release device releases reactant into the core flow duct or/and into the first exhaust gas partial stream. A mixer () is provided at an upstream end area () of the mixing section.

Mixer assembly unit

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Stuttgart, Germany

Konstantin Kappes