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US 2014/0360160 A1Published application
Variable geometry turbine vane
AssigneeFord Global Technologies, LLC
InventorsHarold Huimin Sun, Liangjun Hu, Ben Zhao, Dave R. Hanna
Life of this patent
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Abstract
Embodiments may provide variable geometry turbine, a nozzle vane for a variable geometry turbine, and a method. The variable geometry turbine that may include a turbine wheel and a plurality of adjustable vanes radially positioned around the turbine wheel. The turbine may also include a flow disrupting feature on one or more outside surfaces of one or more of the plurality of adjustable vanes.
Claims23
A variable geometry turbine comprising:
- a turbine wheel;
- a plurality of adjustable vanes radially positioned around the turbine wheel;
- and
- a flow disrupting feature on one or more outside surface of one or more of the plurality of adjustable vanes.
1 more element
A nozzle vane for a variable geometry turbine for a turbocharger comprising:
- a leading edge;
- a trailing edge;
- an outside surface for directing a flow of exhaust gases toward a turbine of the turbocharger from the leading edge toward the trailing edge;
- and
- one or more flow disrupting features on the outside surface to disrupt the flow adjacent to the trailing edge.
2 more elements
A method, comprising:
- during engine braking, expanding exhaust gas through a variable geometry nozzle of a turbocharger;
- and
- disrupting flow via flow disrupting grooves on a surface of nozzle vanes upstream from exhaust vanes of the turbocharger.
Dependencies are inferred from the claim text.