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US 4,803,893 AGranted
High speed rotor balance system
AssigneeUnited Technologies Corporation
InventorRobert A. Bachinski
Life of this patent
Estimating the term…
Abstract
A balance system for a high speed bladed rotor includes a collar (28) with an inwardly facing groove (30). Balance weights (36) are located in the groove with a cover plate (44) retaining the weights and covering the weights, groove and slots (32) in the collar. A compact arrangement is achieved with the weight close to the disk and windage losses are reduced.
Claims3
A compact balance system for a high speed gas turbine engine rotor comprising:
- a bladed disk;
- a closely spaced collar secured to said disk, said collar having an inwardly racing circumferential groove and a plurality of inwardly facing axial slots contiguous with, and axially outboard of said groove with respect to said disk;
- at least one balance weight located in said groove and one of said slots, and having an axially extending side;
- a circumferential cover place of L cross section secured within said collar including an axially extending leg covering the inwardly facing side of said groove, weight and slots and having a radially extending leg covering the axially extending side of said weight and slots.
1 more element
Dependencies are inferred from the claim text.