Variable Vane Lever Arm
AssigneeRtx Corporation
InventorsSamuel B. Hoyt, Fadi Samir Maalouf
Life of this patent
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Abstract
A vane arm has first and second holes in its shank proximate first and second ends. First and second tabs each project laterally opposite each other from the shank proximate the second end and have: a bend; and a distal portion distally of the bend. The second tab distal portion partially overlaps the first tab distal portion. A third hole is in the second tab distal portion overlapping a distal end edge of the first tab and having a proximal edge and a distal edge. At least along a region across an axis of the second hole, the third hole distal edge and proximal edge diverge from each other in a direction toward the first end and/or the first tab distal end edge and the third hole proximal edge diverge from each other in a direction toward the first end.
Claims26
A vane arm comprising:
- a first end and a second end;
- a shank extending between the first end and the second end and having a first face and a second face;
- a first hole in the shank proximate the first end;
- a second hole in the shank proximate the second end;
- a first tab projecting laterally from the shank proximate the second end and having:
- a bend;
- and
- a distal portion distally of the bend;
- and
- a second tab projecting laterally from the shank proximate the second end laterally opposite the first tab and having:
- a bend;
- a distal portion distally of the bend and partially overlapping the first tab distal portion;
- and
- a third hole in the second tab distal portion overlapping a distal end edge of the first tab and having a proximal edge and a distal edge,
- wherein at least along a region across an axis of the second hole:
- the third hole distal edge and proximal edge diverge from each other in a direction toward the first end;
- and/or
- the first tab distal end edge and the third hole proximal edge diverge from each other in a direction toward the first end.
The method of claim 1213 wherein:
- the method is performed with a plurality of vane arms and the respective pins are mounted to a shared synchronizing ring.
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Dependencies are inferred from the claim text.