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VARIABLE VANE ACTUATION WITH ROTATING RING AND SLIDING LINKS

  • US 20170276014A1
  • Filed: 03/24/2016
  • Published: 09/28/2017
  • Est. Priority Date: 03/24/2016
  • Status: Active Grant
First Claim
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1. A variable vane system, comprising:

  • an actuator;

    a harmonic drive driven by the actuator;

    a unison ring driven by the harmonic drive, the unison ring including a multiple of pins; and

    a multiple of variable vanes driven by the unison ring, each of the multiple of variable vanes connected to the unison ring through a respective drive arm that includes a slot which receives one of the multiple of pins to accommodate axial motion of the unison ring.

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