Patent attributes
A variable vane assembly for a compressor having a plurality of vanes is disclosed. The variable vane assembly may generally include a synchronizing ring and a plurality of attachment studs secured to the synchronizing ring. The variable vane assembly may also include a plurality of lever arms, with each lever arm having a first end and a second end. The first end of each lever arm may be attached to one of the vanes. Additionally, a plurality of rotational attachment devices may be configured to rotatably couple the second end of each lever arm to one of the attachment studs so as to define a rotational interface therebetween. Further, each of the attachments studs may be rigidly attached to one of the rotational attachment devices at the rotational interface such that there is substantially no relative radial and circumferential sliding motion between the synchronizing ring and the plurality of lever arms during rotation of the synchronizing ring.
