Wind turbine
Patent
·
OSTI ID:7349905
A wind turbine rotatable about a shaft is described which includes a drive rotor with one or more elongated blades each having a central outwardly curved portion of airfoil shape which produces rotary motion when the blade rotates in wind at a blade tip velocity to wind velocity ratio greater than about three or four. Additional wind rotor means are disposed at both ends of the curved portions of the elongated blade for rotatably accelerating the drive rotor to the desired velocity ratio. (Official Gazette)
- Assignee:
- U.S. Energy Research and Development Administration
- Patent Number(s):
- US 3918839
- OSTI ID:
- 7349905
- Country of Publication:
- United States
- Language:
- English
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