Invention Grant
- Patent Title: Variable vane positioning apparatus for a gas turbine engine
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Application No.: US16742164Application Date: 2020-01-14
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Publication No.: US10900376B2Publication Date: 2021-01-26
- Inventor: Eric J. Ward
- Applicant: United Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F01D17/16
- IPC: F01D17/16 ; F04D29/56 ; F02C9/20 ; F02C9/22 ; F02C3/04

Abstract:
A variable vane assembly for a gas turbine engine includes at least one synchronization ring, a plurality of variable vanes connected to the synchronization ring, a plurality of torque boxes disposed circumferentially about the synchronization ring, a drive ring coupled to each of the torque boxes such that the drive ring causes an approximately identical torque to be applied to the synchronization ring from the torque boxes simultaneously, and an actuator coupled to one of the plurality of torque boxes and operable to drive the drive ring through the torque box.
Public/Granted literature
- US20200149428A1 VARIABLE VANE POSITIONING APPARATUS FOR A GAS TURBINE ENGINE Public/Granted day:2020-05-14
Information query
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