Modulated hybrid variable area turbine nozzle for gas turbine engine
AssigneeGeneral Electric Company
InventorsDavid Todd Bentley, Christopher Ryan Johnson, Brandon Flowers Powell
Life of this patent
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Abstract
The present disclosure is directed to a variable area turbine nozzle. The variable area turbine nozzle includes a first vane segment, a second vane segment arranged with the first vane segment, and a trailing edge segment arranged with the first and second vane segments. The vane also includes a first actuating system for pivoting the second vane segment with respect to the first vane segment and a second actuating system for pivoting the trailing edge with respect to the first and second vane segments.
Claims20
A variable area turbine nozzle system, comprising:
- a variable area turbine nozzle comprising at least one nozzle segment, the nozzle segment comprising:
- outer and inner spaced apart bands,
- a plurality of vanes spaced apart from each other to define a throat of minimum flow area for channeling therethrough combustion gas, each of the plurality of vanes comprising:
- a first vane segment extending between the bands and fixedly joined thereto,
- a second vane segment arranged with the first vane segment, and
- a first actuating system for pivoting the second vane segment with respect to the first vane segment so as to vary the throat area;
- wherein a subset of the plurality of vanes also comprise:
- a trailing edge segment configured with the first and second vane segments, and
- a second actuating system for pivoting the trailing edge segment with respect to the first and second vane segments, the second actuating system positioned adjacent to the first actuating system, the second actuating system fixedly joined to the first and second vane segments and the trailing edge segment at one end thereof so as to mount the trailing edge segment to the first and second vane segments for pivoting movement thereof;
- and
- a controller configured to control the first and second actuating systems.
A variable area turbine nozzle segment, comprising:
- outer and inner spaced apart bands;
- a plurality of vanes spaced apart from each other to define a throat of minimum flow area for channeling therethrough combustion gas, each of the plurality of vanes comprising:
- a first vane segment extending between the bands and fixedly joined thereto,
- a second vane segment arranged with the first vane segment, and
- a first actuating system for pivoting the second vane segment with respect to the first vane segment so as to vary the throat area, wherein a subset of the plurality of vanes also comprise:
- a trailing edge segment configured with the first and second vane segments, and
- a second actuating system for pivoting the trailing edge segment with respect to the first and second vane segments, the second actuating system positioned adjacent to the first actuating system, the second actuating system fixedly joined to the first and second vane segments and the trailing edge segment at one end thereof so as to mount the trailing edge segment to the first and second vane segments for pivoting movement thereof.
A variable area turbine nozzle, comprising:
- a stationary first vane segment;
- a rotatable second vane segment arranged with the first vane segment to define a corresponding vane;
- a rotatable trailing edge segment configured with the first and second vane segments;
- a first actuating system for pivoting the second vane segment with respect to the first vane segment;
- and,
- a second actuating system for pivoting the trailing edge segment with respect to the first and second vane segments, the second actuating system positioned adjacent to the first actuating system, the second actuating system fixedly joined to the first and second vane segments and the trailing edge segment at one end thereof so as to mount the trailing edge segment to the first and second vane segments for pivoting movement thereof.
Dependencies are inferred from the claim text.