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US 2014/0271183 A1Published application
Wind Turbine with Variable Pitch Blades
OwnerGerald L. Barberinventor
Life of this patent
Estimating the term…
Abstract
A wind turbine including a blade pitch control ring mounted coaxially with and rotatable with the wind turbine, and an angle control arm connected between the blade pitch control ring and each of the turbine blades for simultaneously changing the pitch of all of the turbine blades.
Claims22
A wind turbine comprising
- a central shaft rotatable about a horizontal axis,
- a plurality of turbine blades extending radially from said central shaft and rotatable with said central shaft about said horizontal axis,
- a blade pitch control ring coaxial with said central shaft and rotatable with the rotation of said central shaft about said horizontal axis,
- blade pitch control means extending between said blade angle control ring and each of said turbine blades for maintaining each said turbine blade at the same pitch.
1 more element
A method of controlling the pitch of a plurality of turbine blades mounted about and extending radially from a common axle of rotation, comprising
- turning a blade pitch control ring mounted coaxially with said common axle of rotation about the common axle of rotation,
- in response to turning the blade pitch control ring about the axle of rotation simultaneously changing the pitch of the plurality of said turbine blades.
A wind turbine comprising
- a central shaft rotatable about a horizontal axis,
- a plurality of turbine blades extending radially from said central shaft and rotatable with said central shaft about said horizontal axis,
- a blade pitch control ring coaxial with said central shaft and rotatable with the rotation of said central shaft about said horizontal axis,
- blade pitch control means extending between said blade pitch control ring and each of said turbine blades for maintaining each said turbine blade at the same pitch,
- said blade pitch control means including a blade control arm rigidly connected to each of said turbine blades, and a ring connector arm for each blade control arm connected to said blade pitch control ring, and
- an articulating and swiveling connection between said blade control arm and said pitch control ring.
3 more elements
A wind turbine comprising
- a blade pitch control ring mounted coaxially with and rotatable with the wind turbine, and
- an angle control arm connected between the blade pitch control ring and each of the turbine blades for simultaneously changing the pitch of all of the turbine blades in response to the rotation of one of said turbine blades.
A wind turbine comprising
- a rotatable central shaft oriented horizontally and a perimeter rim concentric with and rotatable with said central shaft,
- a plurality of sail wings extending radially from said central shaft toward said perimeter ring,
- each said sail wing including a support spar extending radially from said central shaft toward said perimeter rim,
- each said support spar including an inner end portion rotatably supported by said central shaft and an outer end portion rotatably supported by said perimeter rim, such that the pitch of the sail wings changes in response to the rotation of said spars.
1 more element
Dependencies are inferred from the claim text.