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US 2020/0003228 A1Published application
Harmonic Drive for Shaft Driving Multiple Stages of Vanes via Gears
AssigneeUnited Technologies Corporation
InventorsGabriel L. Suciu, Jesse M. Chandler
Life of this patent
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Abstract
A gas turbine engine includes a harmonic drive driven by an actuator, a drive shaft driven by the harmonic drive, the drive shaft with a first drive gear and a second drive gear. A first variable vane stage with a first actuator gear to direct drive one of a multiple of variable vanes, the first actuator gear meshed with the first drive gear; and a second variable vane stage with a second actuator gear to direct drive one of a multiple of variable vanes, the second actuator gear meshed with the second drive gear.
Claims13
1-20. (canceled)
A gas turbine engine, comprising:
- an actuator;
- a harmonic drive driven by the actuator;
- a drive shaft driven by the harmonic drive, the drive shaft rotatable about an axis;
- a first bridge to drive a first variable vane stage through a first unison ring;
- and
- a first link between the drive shaft and the first bridge.
3 more elements
Dependencies are inferred from the claim text.