Oil baffle for gas turbine fan drive gear system
AssigneeUnited Technologies Corporation
InventorsWilliam G. Sheridan, Michael E. McCune
Life of this patent
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Abstract
An exemplary turbine engine assembly includes a first shaft that is rotatably driven by a second shaft of a gas turbine engine and a compressor hub driven by the first shaft. The compressor hub is within a compressor section of the gas turbine engine. An epicyclic gear train is driven by the first shaft. A common attachment point secures the first shaft and the compressor hub to the second shaft.
Claims24
A turbine engine assembly comprising:
- a first shaft that is rotatably driven by a second shaft of a gas turbine engine;
- a compressor hub driven by the first shaft, the compressor hub within a compressor section of the gas turbine engine;
- an epicyclic gear train that is driven by the first shaft;
- and
- a common attachment point that secures the first shaft and the compressor hub to the second shaft.
A turbine engine assembly comprising:
- a turbine shaft that is rotated by a turbine of a gas turbine engine;
- at least one compressor hub that is rotated by the turbine shaft, the at least one compressor hub within a compressor section of the gas turbine engine;
- a compressor shaft that is rotatably driven by the turbine shaft, and
- a epicyclic gear train that is driven by the compressor shaft, wherein the at least one compressor hub and the compressor shaft are rotatably coupled to the turbine shaft at a common attachment point.
A method of applying torque to an epicyclic gear train of a gas turbine engine comprising:
- a) rotating a turbine shaft using a turbine section of a gas turbine engine;
- b) rotating a compressor hub using the turbine shaft;
- and
- c) rotating a compressor shaft with the turbine shaft, the compressor shaft configured to rotate an epicyclic gear train, wherein the first shaft is secured to the compressor hub and the compressor shaft at a common attachment point.
A turbine engine assembly comprising:
- a compressor hub and a two-part compressor shaft, containing an aft part and a forward part, the forward part connected to an epicyclical gear train and the aft part driven by an engine core shaft;
- wherein a compressor hub and two-part shaft are connected at a common joint.
Dependencies are inferred from the claim text.