VAWT/AR overview

  • The first new mechanical motion for a Vertical Axis Wind Turbine since Darrieus (1931)
  • Patent Pending 8/7/06
  • Unique combination of helicopter rotor head design with wind turbine design.
  • No prior art in wind turbine technology found during extensive patent searches.
  • A result of 4-5 years of research.

Download Spec Sheet

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VAWT/AR key parameters Print E-mail

(variables unique to the AR are in red)

  • Rotor diameter/airfoil length ratio
  • Airfoil aspect ratio (length to width)
  • Airfoil planform (shape of lifting surface)
  • Airfoil cant angle
  • Dampener response
  • Rotor tilt/airfoil pitch ratio
  • Rotor tilt/airfoil AOA limits
  • Centrifugal tilt compensation

 
 
Operating Characteristics Print E-mail

  • Very high torque due to long moment arms

  • Large swept area for more power

  • Dynamic response to wind and load conditions

  • Self-limiting, which prevents run-aways.  No external wind alignment mechanics

  • Canted airfoils create lift in perpendicular axis

  • Self-starting in low wind speeds

  • Very quiet compared to most turbines
 
VAWT/AR vs. other VAWTs Print E-mail

  • Reliably self-starting

  • Higher torque

  • Will not "run away"

  • No external wind-vane-type devices

  • Dynamically responsive to wind & load

  • Many variables to adjust performance

  • Projected to be more efficient
 
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