Method and systems for a fluidic variable turbocharger for an engine
AssigneeTransportation IP Holdings, LLC
InventorsLouis Kobielski, Baris Uygun, Adam Felton
Life of this patent
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Abstract
Various methods and systems are provided for a fluidic variable turbine. In one example, a system for an engine comprises a turbocharger turbine including a nozzle ring, the nozzle ring including a plurality of stationary vanes, each vane of the plurality of stationary vanes including a plurality of injection ports arranged at an outer surface of the vane, and a gas supply system to supply variable gas flow to and out of the plurality of injection ports.
Claims20
A system for an engine, the system comprising:
- at least one cylinder;
- a turbocharger turbine receiving exhaust gas from the at least one cylinder through an exhaust passage fluidly coupled to the at least one cylinder and the turbocharger turbine, wherein the turbocharger turbine includes a nozzle ring, the nozzle ring including a plurality of stationary vanes, each stationary vane of the plurality of stationary vanes including an outer surface, and each stationary vane of one or more stationary vanes of the plurality of stationary vanes including a plurality of rows each comprising at least one injection port arranged at the outer surface of the stationary vane;
- and
- a gas supply system comprising a valve system fluidly coupled with the at least one injection port is configured to supply variable gas flow to and out of the at least one injection port of each of the plurality of rows.
A method for an engine, the method comprising:
- at a controller, commanding an adjustment of an amount of air injected from at least one injection port arranged on an outer surface of a vane of a turbine nozzle ring of a turbine to adjust a boundary layer on the outer surface and a throat opening of the turbine nozzle ring,
- wherein the turbine receives exhaust gas from at least one cylinder in the engine and is fluidly coupled to the at least one cylinder via an exhaust passage.
A system for an engine, the system comprising:
- a turbocharger including a compressor driven by a turbine, the turbine including a nozzle ring with a plurality of stationary vanes mounted thereon, each stationary vane of the plurality of stationary vanes including multiple rows of air passages within the stationary vane, wherein each air passage of the multiple rows of air passages terminates at at least one injection port arranged on an outer surface of the stationary vane;
- an air flow control system comprising a valve system fluidly coupled to the compressor and the multiple rows of air passages of each stationary vane of the plurality of stationary vanes;
- and
- a controller including computer-readable instructions stored on memory that when executed during operation of the engine cause the controller to:
- actuate the air flow control system to adjust, for each stationary vane of the plurality of stationary vanes, a number of rows of the multiple rows of air passages receiving air from the compressor via the air flow control system as an operating condition of the engine changes.
Dependencies are inferred from the claim text.