Rotor or propeller blade with dynamically variable within each revolution fluid dynamic properties
AssigneeOptivector Ltd
InventorPhilip Bogrash
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Abstract
A blade for cycloidal rotor or propeller is provided with means to dynamically change within each revolution: its relative pivot point location along chord, extend or retract trailing edge, make actuated or passive turns of trailing edge flap, dynamically control stiffness of at least the flexible trailing edge, open or close strips covering much of blade surface area to allow flow through the blade. These features will enable the control system to continually adjust each blade to its immediate operating environment along the orbit.
Claims12
A cycloidal rotor blade having balancing features to balance the blade relative to a pivot axis of said blade's and also having at least one device for dynamically changing said blade's fluid dynamic properties along said blade's orbit within each rotor revolution.
A method for altering fluid dynamic properties of a cycloidal rotor blade within one blade revolution, the method comprising:
- providing a cycloidal rotor blade having:
- a device for balancing the blade dynamically about said blade's pivot axis, at least one device for changing said blade's fluid dynamic properties and at least one independently operable ultra-fast actuator operatively connected with said device for changing said blade's fluid dynamic properties in accordance with commands received from a control system;
- and actuating one or more of the actuators within a revolution of the blade.
Dependencies are inferred from the claim text.