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US 2010/0068058 A1Published application
Blade with hinged blade tip
AssigneeLm Glasfiber A/S
InventorTommy Sørensen
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AssigneeLm Glasfiber A/S
InventorTommy Sørensen
Estimating the term…
The present invention relates to a blade (202) for a wind power plant (201) comprising a controllable actuator and at least one joint (206) transversally of the longitudinal direction of the blade, about which joint the outermost part (205) of the turning of the blade at an angle out of the original face of rotation of the blade can be controlled by the actuator. Hereby the rotor area can he controlled continuously during operation, and the distance between the blade tip and the tower can be increased/reduced. The turning and the bracing of the joint is controlled by means of wire pulls and/or actuators, such as eg electric, pneumatic or hydraulic pistons. The invention also relates to a method of improving the operation of a wind power plant in operation, using the same mechanism.
A blade (202) for a wind power plant, characterised in comprising at least one controllable actuator (506) arranged interiorly of the blade, including eg an electric, hydraulic and/or pneumatic piston and at least one joint (206) transversally of the longitudinal direction (501) of the blade, about which joint (206) the outermost part (205) of the turning of the blade at an angle out of the original face of rotation of the blade can be controlled by the actuator, whereby the rotor area (204) can be controlled in operation.
A method of improving the operation of a wind power plant, characterised in comprising that the outermost part (205) of the turning of the blades about at least a joint (206) transversally of the longitudinal direction (501) of the blade at an angle out of the original face of rotation is controlled by at least one controllable actuator (50), whereby the rotor area (204) is controlled during operation.
Dependencies are inferred from the claim text.