Variable pitch fan actuator
AssigneeGeneral Electric Company
InventorsDaniel Alan Niergarth, Darek Tomasz Zatorski, Brandon Wayne Miller
Life of this patent
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Abstract
A gas turbine engine including a core having in serial flow order a compressor, a combustor, and a turbine—the compressor, combustor, and turbine together defining a core air flowpath. The gas turbine engine additionally includes a fan section mechanically coupled to the core, the fan section including a plurality of fan blades, and each of the plurality fan blades defining a pitch axis. An actuation device is operable with the plurality fan blades for rotating the plurality fan blades about their respective pitch axes, the actuation device including an actuator located outward of the core air flowpath to, e.g., simplify the gas turbine engine.
Claims10
A gas turbine engine comprising:
- a core comprising in serial flow order a compressor, a combustor, and a turbine, the compressor, combustor, and turbine together defining a core air flowpath;
- wherein the core further comprises a strut extending through the core air flowpath;
- a fan section mechanically coupled to the core, the fan section comprising a plurality of fan blades, each of the plurality of fan blades defining a respective pitch axis, each of the plurality of fan blades being rotatable about the respective pitch axis;
- and
- an actuation device operable with the plurality of fan blades for rotating the plurality of fan blades about the respective pitch axes, the actuation device comprising a rotating to static transfer device, an actuator located outward of the core air flowpath, and a non-rotating mechanical coupling extending through the strut and between the rotating to static transfer device and the actuator.
Dependencies are inferred from the claim text.