초록 ▼

An attachment system for use with a variable incidence vane is disclosed. The attachment system includes a vane arm for joining a unison ring to a vane spindle. The vane arm has an arm portion and a bushing connected to the arm portion. The attachment system further has a pin for joining the vane ar

An attachment system for use with a variable incidence vane is disclosed. The attachment system includes a vane arm for joining a unison ring to a vane spindle. The vane arm has an arm portion and a bushing connected to the arm portion. The attachment system further has a pin for joining the vane arm to the unison ring. The pin fits within an interior bore in the bushing and is joined to the unison ring by a dual swage.

대표청구항 ▼

What is claimed is: 1. An attachment system for use with a variable incidence vane system comprising: a vane arm for connecting a unison ring and a spindle; said vane arm having an arm portion and a bushing connected to said arm portion; a pin for connecting said vane arm to said unison ring; and s

What is claimed is: 1. An attachment system for use with a variable incidence vane system comprising: a vane arm for connecting a unison ring and a spindle; said vane arm having an arm portion and a bushing connected to said arm portion; a pin for connecting said vane arm to said unison ring; and said pin fitting within said bushing and being joined to said unison ring by a dual swage. 2. The attachment system according to claim 1, wherein said bushing is connected to said arm portion by brazing. 3. The attachment system according to claim 1, wherein said bushing has no chamfered reliefs. 4. The attachment system according to claim 1, further comprising said vane arm having means for connecting said vane arm to said vane spindle. 5. The attachment system according to claim 4, wherein said connecting means comprises a claw having a tapered leading edge. 6. The attachment system according to claim 5, wherein said vane spindle has two offset slots and said connecting means further comprises first and second curved members for engaging said slots. 7. The attachment system according to claim 6, wherein said first curved member has a first radius of curvature, said second curved member has a second radius of curvature, and said first radius of curvature is different from said second radius of curvature. 8. A vane arm for use in an attachment system having a unison ring comprising: an arm portion and a bushing connected to said arm portion; said arm portion having a thickness; said bushing having a height which is maximized to fit within a cross section of the unison ring with a clearance between top and bottom surfaces of said bushing sufficient to eliminate any potential for contact and subsequent wear of said top and bottom surfaces; a tapered claw structure for joining said vane arm to another structure; and said tapered claw structure including a tapered leading edge. 9. A vane arm according to claim 8, wherein said tapered claw structure includes a first curved member having a first radius of curvature, a second curved member having a second radius of curvature, and said first radius of curvature being different from said second radius of curvature. 10. A vane arm for use in a gas turbine engine comprising an arm portion, a bushing at a first end of said arm portion, and an integrally formed tapered claw feature at a second end of said arm portion, and said claw feature comprising a first curved member having a tapered leading edge and a second curved member having a tapered leading edge. 11. A vane arm according to claim 10, wherein said first curved member has a first radius of curvature, said second curved member having a second radius of curvature, and said first radius of curvature is different from said second radius of curvature.