VARIABLE AREA BLADE TURBINE AND CONDITIONING FLOW DEFLECTORS DEVICE AND METHOD
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United States of America Patent
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Issued Date -
May 18, 2017
app pub date -
Nov 16, 2016
filing date -
Nov 16, 2015
priority date (Note) -
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Abstract
A mechanism to provide controlled variable area blades for fluid driven tangential turbines is disclosed, where the spindle axis is perpendicular to the fluid flow, applicable in vertical axis hydraulic turbines but extensive to horizontal axis or wind turbines, with the rotor completely immersed on the flow. Each blade varying its area at selected position of the rotor turning, increasing to maximize conversion of the kinetic energy of the fluid onto mechanical rotational power of the shaft, or reducing to minimize drag moving opposed to such current. A comprehensive method is provided to control the variation in area for any specific degree of rotation of the turbine shaft on a rotational blade array, different flow conditioning deflector solutions in order to increase the power generation capability of the turbine, by increasing speed of the incoming flow to the rotor and minimizing drag of the returning blades.
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