Patent ID: 9033654
Filing Date: 2015-05-19
Classification: F01D,F04D

Abstract:
1. A variable geometry vane system for a vane stage of a turbomachine, comprising; a plurality of vanes, wherein each vane has a vane axis of rotation and is configured to rotate, at least in part, about the vane axis of rotation; and wherein each vane has a driven member configured, that when rotated, to impart rotation of at least part of the vane about the vane axis of rotation; and a flowpath wall configured to rotate about an axis of rotation of the turbomachine, wherein the flowpath wall has a driving member configured to engage the driven member and configured to impart rotation to the driven member upon rotation of the flowpath wall about a turbomachine axis of rotation, wherein the driving member is a gear, and wherein the driven member is a gear.