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US 12,571,370 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.
Claims6
A waterborne vessel propeller assembly comprising:
- a shaft having an axis at its center, the shaft attached to a waterborne vessel;
- a rotor attached to the shaft, the rotor rotatable about the axis;
- a first blade attached to the rotor, the first blade having a first tip and a first actuator, the first actuator coupled between a proximal segment and a distal segment of the first blade, the first actuator covered by a first flexible membrane, wherein the first actuator is capable of adjusting a length of the first blade;
- and
- a second blade attached to the rotor, the second blade having a second tip and a second actuator, the second actuator coupled between a proximal segment and a distal segment of the second blade, the second actuator covered by a second flexible membrane, wherein the second actuator is capable of adjusting a length of the second blade.
2 more elements
Dependencies are inferred from the claim text.