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US 11,111,834 B2Granted
Methods and systems for a mixing chamber
AssigneeFord Global Technologies, LLC
InventorsJoerg Kemmerling, Helmut Matthias Kindl, Vanco Smiljanovski, Hanno Friederichs, Franz Arnd Sommerhoff, Andreas Kuske, Frank Wunderlich
Life of this patent
Estimating the term…
Abstract
Methods and systems are provided for a mixing chamber in a turbine. In one example, a system comprises a mixing chamber integrally formed within a turbine with an injector positioned to inject reductant directly into the mixing chamber.
Claims19
An internal combustion engine with an exhaust gas discharge system for discharging exhaust gas from at least one cylinder, the internal combustion engine, comprising:
- at least one exhaust gas aftertreatment system is arranged in the exhaust gas discharge system;
- an injector is positioned to inject a reducing agent into a mixing chamber upstream of the at least one exhaust gas aftertreatment system;
- and
- a turbine is arranged in the exhaust gas discharge system upstream of the at least one exhaust gas aftertreatment system, wherein a turbine casing contains at least one impeller mounted on a rotatable shaft, wherein an inlet region is upstream of and supplies exhaust gas to the at least one impeller and an outlet region is downstream of and discharges exhaust gas from the at least one impeller, and at least one flow channel fluidly couples the inlet region to the outlet region via the at least one impeller, wherein the mixing chamber is arranged inside walls of the turbine casing and fluidly coupled to the at least one flow channel at a portion of the turbine upstream and radially outside of the outlet region and downstream of the at least one impeller via at least one exhaust gas supply line.
1 more element
A system, comprising:
- a turbine comprising an impeller and a passage fluidly coupling an outlet of the impeller to a mixing chamber integrally arranged in a casing of the turbine radially outside of an outlet of the turbine, wherein an exhaust gas supply line directs exhaust gas to the mixing chamber;
- and
- an injector is positioned to inject reductant directly into the mixing chamber.
A method, comprising:
- injecting reductant via an injector directly into a mixing chamber integrally formed in a portion of a turbine downstream of an impeller and radially outside an outlet of a turbine, wherein the mixing chamber receives exhaust gas from downstream of the impeller via a flow channel.
Dependencies are inferred from the claim text.