Individual blade adjustment for wind turbines
AssigneeAerodyn Engineering GmbH
InventorMartin Lehnhoff
Life of this patent
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Abstract
An individual blade adjustment system for wind turbines comprising two drive units which are joined to at least one movable rocker arm, substantially in the cutting plane of the blade connection and which forms a lever mechanism together with the rocker arm, wherein each drive unit produces a linear extension. The respective ends of the lever mechanism are provided with a force-transmitting link to the hub and an element on the blade to be adjusted through each pivot connection.
Claims19
An individual blade adjustment system located within a hub for use with wind turbines, the system comprising:
- a) at least one moveable rocker arm;
- b) first and second drive mechanisms attached to the at least one moveable rocker arm in an intersecting plane of a blade connection within the hub;
- c) a first pivotable connection for permitting the at least one moveable rocker arm to pivot in response to the first drive mechanism acting thereupon;
- d) a second pivotable connection for permitting a blade of the wind turbine to be adjusted in response to the first or second drive mechanism acting thereupon;
- e) the first drive mechanism having a first linear extension portion for acting upon the first and second pivotable connections;
- and
- f) the second drive mechanism having a second linear extension portion for acting upon the second pivotable connection.
The individual blade adjustment system of claimed 1, wherein the second drive mechanism attaches to the at least one moveable rocker arm at a distal end thereof.
Dependencies are inferred from the claim text.