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US 12,110,859 B1Granted
Fluid turbine with aero-elastic damping
OwnerVincent Loccisanoinventor
Life of this patent
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Abstract
An apparatus and method for designing a diffuser-augmented wind turbine with significantly reduced time-averaged loads and significantly reduced dynamic amplification factors. Some embodiments have an annular airfoil in fluid communication with the circumference of a rotor plane, and a vertical surface with a substantially symmetrical aerodynamic form with an articulated portion.
Claims2
A fluid turbine comprising:
- a rotor rotationally engaged with a generator in a nacelle;
- and
- a tower engaged with said nacelle and residing upwind of said rotor;
- and
- a pivot axis coaxial with a long axis of said tower;
- and
- a substantially vertical aerodynamic form in fluid communication with said rotor and configured to pivot about said pivot axis, having a leading edge and a trailing edge;
- said leading edge upwind of said trailing edge and upwind of said pivot axis;
- and
- said trailing edge downwind of said pivot axis and proximal to said rotor;
- and
- an apportioned flap pivotally engaged with said pivot axis;
- wherein
- acceleration in a first direction deflects said apportioned flap to increase force in a second direction, which opposes said first direction.
11 more elements
Dependencies are inferred from the claim text.