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US 2017/0284419 A1Published application
Method and Apparatus for Balancing a Rotor
AssigneeGeneral Electric Company
InventorsMichael Jason Bishop, Kevin Lee Kirkeng
Life of this patent
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Abstract
A turbomachinery rotor apparatus includes: a rotatable disk having an array of slots spaced around its periphery; an array of blades installed in the slots, wherein the blades have variable weights; and a plurality of connection components installed in the disk, each connection component forming a portion of a mechanical joint between one of the blades and its respective slot, wherein the connection components have variable weights.
Claims20
A turbomachinery rotor apparatus comprising:
- a rotatable disk having an array of slots spaced around its periphery;
- an array of blades installed in the slots, wherein the blades have variable weights;
- and
- a plurality of connection components installed in the disk, each connection component forming a portion of a mechanical joint between one of the blades and its respective slot, wherein the connection components have variable weights.
1 more element
A fan rotor apparatus comprising:
- a rotatable fan disk having a forward end and an aft end, and an array of dovetail slots spaced around its periphery;
- an array of fan blades carried by the fan disk, where each fan blade includes an airfoil and a dovetail, wherein the dovetail is received in one of the dovetail slots, and wherein the blades have variable weights;
- and
- a plurality of dovetail keys installed in the dovetail slots, each dovetail key filling a radial gap between one of the fan blades and its respective slot, wherein at least two of the dovetail keys have different weights from each other.
1 more element
A method of balancing a turbomachinery rotor, comprising:
- inserting an array of blades into an array of slots formed in a rotatable disk, wherein the blades have variable weights;
- determining an imbalance of the assembled blades and disk;
- and
- inserting a spacer into each of the slots, such that each spacer forms a portion of a mechanical joint between one of the blades and its respective slot, wherein the spacers each have an individual weight, and wherein the individual weights of the spacers are selected to correct at least a portion of the imbalance.
1 more element
Dependencies are inferred from the claim text.