BLADE WITH HINGED BLADE TIP
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United States of America Patent
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Issued Date -
Mar 18, 2010
app pub date -
Jun 16, 2006
filing date -
Jun 17, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
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.
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