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US 9,297,264 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 wind turbine blade assembly comprising:
- at least first and second blades coupled to a rotor defining an axis of rotation, the first blade defining a first pitch at a first time, the second blade defining a second pitch at the first time, the first and second pitches not being equal and at least one of the pitches being established by a pressure signal from at least one pressure sensor.
A wind turbine blade assembly comprising:
- at least first and second blades coupled to a rotor, the first blade defining a first pitch at a first time, the second blade defining a second pitch at the first time, the first and second pitches not being equal and at least one pitch being established by a pressure signal from at least one pressure sensor.
A turbine blade assembly comprising:
- at least first and second blades coupled to a rotor defining an axis of rotation, the first blade defining a first pitch at a first time, the second blade defining a second pitch at the first time, the first and second pitches not being equal, wherein the pitches are established based on respective pressure signals from at least one pressure sensor on at least one of the blades.
A propeller blade assembly comprising:
- at least first and second blades coupled to a rotor defining an axis of rotation, the first blade defining a first pitch at a first time, the second blade defining a second pitch at the first time, the first and second pitches not being equal, the assembly being configured for being engaged with a waterborne vessel shaft for holding the blades in a vertical plane, at least one of the pitches being established according to at least one pressure signal from at least one pressure sensor.
A propeller blade assembly comprising:
- at least first and second blades coupled to a rotor defining an axis of rotation, the first blade defining a first pitch at a first time, the second blade defining a second pitch at the first time, the first and second pitches not being equal, wherein the pitches are established based on respective pressure signals from at least one of the blades.
Dependencies are inferred from the claim text.