SLIDING GEAR ACTUATION FOR VARIABLE VANES
First Claim
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1. A variable vane system, comprising:
- an actuator;
a harmonic drive driven by the actuator;
a drive gear driven by the harmonic drive; and
a geared unison ring driven by the drive gear, the geared unison ring axially slidable with respect to the drive gear.
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Abstract
An actuator system including a harmonic drive operable to drive a variable vane system of a gas turbine engine.
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Citations
20 Claims
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1. A variable vane system, comprising:
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an actuator; a harmonic drive driven by the actuator; a drive gear driven by the harmonic drive; and a geared unison ring driven by the drive gear, the geared unison ring axially slidable with respect to the drive gear. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A gas turbine engine, comprising:
a harmonic drive operable to drive a variable vane system through a geared connection, the geared connection including a multi-planar drive gear driven by the harmonic drive. - View Dependent Claims (17, 18, 19, 20)
Specification