Turbine Dosing System

Abstract: There is disclosed a turbine dosing system for a turbocharger. The turbine dosing system comprises a turbine inlet passage (112), a turbine wheel chamber and a turbine outlet passage (116). The turbine inlet passage is configured to receive exhaust gas from an internal combustion engine. The turbine wheel chamber is configured to receive exhaust gas from the turbine inlet passage. The turbine wheel chamber contains a turbine wheel supported for rotation about a turbine wheel axis. The turbine wheel comprises an exducer defining an exducer diameter. The turbine outlet passage is downstream of the turbine wheel chamber and is configured to receive exhaust gas from the turbine wheel chamber. The turbine outlet passage is at least partly defined by a structure which comprises a dosing module mount (122) configured to receive a dosing module (32). The turbine outlet passage defines a flow axis which extends from a downstream end of the turbine wheel. The dosing module mount is located within around 10 exducer diameters, along the flow axis, downstream of the downstream end of the turbine wheel.

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