Systems and methods for a variable geometry turbine nozzle
AssigneeFord Global Technologies, LLC
InventorsHarold Huimin Sun, Ben Zhao, Leon Hu, Jianwen James Yi, Eric Warren Curtis, Jizhong Zhang
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Abstract
Various systems and methods are described for a variable geometry turbine. In one example, a nozzle vane includes a stationary having a first cambered sliding surface and a sliding vane having a second cambered sliding surface where the second cambered sliding surface includes a flow disrupting feature in contact with the first sliding cambered surface. The sliding vane may be positioned to slide in a direction from substantially tangent along a curved path to an inner circumference of the turbine nozzle and selectively uncover the flow disrupting feature.
Claims5
A method for a turbine nozzle, comprising:
- during a first condition, moving an actuation block coupled to a nozzle vane of the turbine nozzle from a first position to a second position to open the nozzle vane and move the nozzle vane against a shroud-side wall of the turbine nozzle;
- and
- during a second condition, moving the actuation block from the second position to a third position, the first position between the second position and the third position, and then back to the first position to close the nozzle vane and move the nozzle vane back against the shroud-side wall.
Dependencies are inferred from the claim text.