Omni-directional vertical-axis wind turbine
OwnerGary D. Robertsinventor
Life of this patent
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Abstract
An omni-directional, vertical-axis wind turbine which includes a rotor/stator combination which maximizes energy production by increasing wind velocity and pressure plus eliminating back pressure. The stator section includes a plurality of vortical blades secured between upper and lower conical sails. The blades have a radius fundamentally equal to that of the rotor and a chord length approximately 1.25 times its radius. The rotor has a diameter approximately equal to one-half that of the stator and has a plurality of concave blades secured to and spaced from a vertical spindle, said blades being arranged in stages within the vertical rise of the rotor. Each rotor blade has a chord line equal to twice its radii and a chord length approximating one-third the diameter of the stator.
Claims15
An omni-directional vertical axis wind turbine which includes a rotor mounted for rotation within an annular stator, said stator having upper and lower inwardly-directed conical sails joined by a plurality of vortically curved stator blades spaced evenly at intervals, each stator blade being concave and having a radius equal to the radius of the rotor and a chord length approximately 1.25 times its radius.
An omni-directional vertical axis wind turbine which includes a cylindrical rotor mounted for rotation within an annular stator, said stator having upper and lower inwardly-directed conical sails which create an inwardly-convergent air passage to the rotor, a plurality of vortically curved stator blades connected to both sails and spaced evenly around the stator, said rotor having a plurality of stages stacked upon a vertical spindle which forms the axis of rotation of the rotor, each stage including a circular plate secured to the spindle and at least three semi-cylindrical rotor blades, the blades of each stage being sandwiched perpendicularly between and firmly secured to adjacent plates, said blades each having a chord length which is less than the radius of the rotor and positioned adjacent the peripheries of the adjacent plates with their chord lines perpendicular to said spindle to define an unobstructed space surrounding the spindle at the center of the rotor.
Dependencies are inferred from the claim text.