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US 11,454,212 B2Granted
Rotatable blade apparatus with individually adjustable blades
AssigneeEnergyield LLC
InventorRobert Hotto
Life of this patent
Estimating the term…
Abstract
The lengths and/or chords and/or pitches of wind turbine or propeller blades are individually established, so that a first blade can have a length/chord/pitch that is different at a given time to the length/chord/pitch of a second blade to optimize performance and/or to equalize stresses on the system.
Claims18
A blade assembly comprising:
- at least first and second blades coupled to a rotor, the first blade configured for defining a first pitch at a first time, the second blade configured for defining a second pitch at the first time, the first and second pitches not being equal, a conveyance shaft holding the first and second blades, the first and second blades being configured for being identically configured to each other at a second time;
- and
- one or more sensors configured for generating signals based at least in part on which pitches are established;
- wherein the first blade has its chord being different from that of the second blade at the first time.
1 more element
A blade assembly comprising:
- at least first and second blades coupled to a rotor, the first blade configured for defining a first pitch at a first time, the second blade configured for defining a second pitch at the first time, the first and second pitches not being equal, a conveyance shaft holding the first and second blades, the first and second blades being configured for being identically configured to each other at a second time;
- wherein the first blade has its length being different from that of the second blade at the first time.
A method, comprising:
- providing a rotor for a blade assembly;
- providing at least first and second blades for coupling to the rotor, the first blade configured for defining a first pitch at a first time, the second blade configured for defining a second pitch at the first time, the first and second pitches not being equal, the first and second blades being configured for being identically configured to each other at a second time;
- and
- providing a conveyance shaft for holding the first and second blades;
- wherein the first blade is configured for having its length be different from that of the second blade at the first time and/or for having its chord be different from that of the second blade at the first time.
2 more elements
Dependencies are inferred from the claim text.