Wind turbine with automatic pitch and yaw control
- Middletown, CT
A wind turbine having a flexible central beam member supporting aerodynamic blades at opposite ends thereof and fabricated of uni-directional high tensile strength material bonded together into beam form so that the beam is lightweight, and has high tensile strength to carry the blade centrifugal loads, low shear modulus to permit torsional twisting thereof for turbine speed control purposes, and adequate bending stiffness to permit out-of-plane deflection thereof for turbine yard control purposes. A selectively off-set weighted pendulum member is pivotally connected to the turbine and connected to the beam or blade so as to cause torsional twisting thereof in response to centrifugal loading of the pendulum member for turbine speed control purposes.
- Assignee:
- United Technologies Corporation (Hartford, CT)
- Patent Number(s):
- US 4083651
- OSTI ID:
- 863051
- Country of Publication:
- United States
- Language:
- English
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adequate
aerodynamic
automatic
beam
bending
blade
blades
bonded
carry
central
central beam
centrifugal
connected
control
deflection
fabricated
flexible
form
lightweight
loading
loads
material
material bonded
modulus
off-set
opposite
out-of-plane
pendulum
permit
pitch
pivotally
pivotally connected
purposes
response
selectively
shear
shear modulus
speed
speed control
stiffness
strength
strength material
supporting
tensile
tensile strength
torsional
turbine
turbine speed
twisting
uni-directional
weighted
wind
wind turbine
yard
yaw