Auxiliary turbomachinery weight reduction using internal engineered design
AssigneeHamilton Sundstrand Corporation
InventorViktor Kilchyk
Life of this patent
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Abstract
A rotor for a rotary machine includes a hub centered on a central axis, the hub comprising a shaft portion extending along the central axis, a disk portion circumferentially disposed about the shaft portion, a platform portion as a radially outermost extent of the shaft portion and the disk portion, and a branched support structure extending radially inward from the platform portion. The rotor further includes a plurality of blades extending outward from the platform portion of the hub. The branched support structure comprises a hub region and a blade support region associated with one blade of the plurality of blades.
Claims18
A rotor for a rotary machine comprising:
- a hub centered on a central axis, the hub comprising:
- a shaft portion extending along the central axis;
- a disk portion circumferentially disposed about the shaft portion;
- a platform portion as a radially outermost extent of the shaft portion and the disk portion;
- and
- a branched support structure extending radially inward from the platform portion;
- and
- a plurality of blades extending outward from the platform portion of the hub;
- wherein the branched support structure comprises a hub region and a blade support region associated with one blade of the plurality of blades;
- wherein the blade support region comprises a plurality of branching sections, each branching section comprising:
- a primary branch disposed in a radially outermost location;
- and
- a plurality of secondary branches diverging from the primary branch at a first branching region and extending radially inwardly therefrom;
- wherein for each branching section, the primary branch has a first thickness greater than a second thickness of each of the secondary branches.
A rotary machine comprising:
- a tie rod extending through the rotary machine;
- and
- a rotor mounted on the tie rod, wherein the rotor comprises:
- a hub centered on a central axis, the hub comprising:
- a shaft portion extending along the central axis;
- a disk portion circumferentially disposed about the shaft portion;
- a platform portion as a radially outermost extent of the shaft portion and the disk portion;
- and
- a branched support structure extending radially inward from the platform portion;
- and
- a plurality of blades extending outward from the platform portion of the hub;
- wherein the branched support structure comprises a hub region and a blade support region associated with one blade of the plurality of blades;
- wherein the blade support region comprises a plurality of branching sections,
- each branching section comprising:
- a primary branch disposed in a radially outermost location;
- and
- a plurality of secondary branches diverging from the primary branch at a first branching region and extending radially inwardly therefrom;
- wherein for each branching section, the primary branch has a first thickness greater than a second thickness of each of the secondary branches.
Dependencies are inferred from the claim text.