Back to results
US 10,704,401 B2Granted
Rotor with relief features and one-sided load slots
AssigneeRaytheon Technologies Corporation
InventorsNicholas Aiello, James Cosby
Life of this patent
Estimating the term…
Abstract
An exemplary turbomachine rotor assembly includes a pair of spaced rails that extend around a cylindrical surface to define a rotor hub. The rails define a space for receiving blades. Load slots are formed in one of the rails. A relief feature is formed in an opposite surface of an opposing rail. The load slots and relief feature utilized to move at least one of the blades into the space.
Claims19
A rotor blade assembling method comprising:
- moving a blade into a space between a first rail and a second rail opposing the first rail, the first and second rails extending around a cylindrical surface to define a rotor hub;
- and
- moving the blade circumferentially to an installed position within the rotor hub, wherein the blade moves through a blade load slot formed on the first rail and a relief feature formed on the second rail, the relief feature circumferentially aligned with the blade load slot,
- wherein the second rail has a radially outward facing surface and a radially inward facing surface that meet at an interface, the relief feature formed entirely within the radially inward facing surface such that the relief feature does not extend past the interface.
1 more element
A rotor assembling method comprising:
- moving a blade into a space through one of a plurality of blade load slots and one of a plurality of relief features;
- and
- moving the blade circumferentially within the space to a position adjacent to other blades,
- wherein a pair of spaced rails include a first rail and a second rail opposing the first rail, the pair of spaced rails extend around a cylindrical surface to define a rotor hub, and the pair of spaced rails defining the space for receiving blades,
- wherein the plurality of blade load slots are formed in the first rail, the plurality of blade load slots each extending from an outwardly facing surface of the first rail to an inwardly facing surface of the first rail,
- wherein the plurality of relief features are formed on an underside of the second rail and are circumferentially aligned with the plurality of blade load slots,
- wherein the second rail has a radially outward facing surface and a radially inward facing surface that meet at an interface, the relief feature formed entirely within the radially inward facing surface such that the relief feature does not extend past the interface.
4 more elements
Dependencies are inferred from the claim text.