Wind driven energy generating device
AssigneeBen-Gurion University of the Negev
InventorOzer Igra
Life of this patent
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Abstract
A wind-driven energy-generating device comprises a shroud having a throat within which the rotor blades of a turbine are mounted, an intake section upstream of and having an inner face converging towards the throat, and a diffuser section downstream of and having an inner face diverging away from the throat. To prevent premature air separation along the inner surface of the diffuser section, the device includes boundary layer control means comprising a plurality of air channels leading from an external surface of the shroud to the internal surface of its diffuser section for injecting a flow of air of high kinetic energy from the air stream external of the shroud to the boundary layer of the air stream within the diffuser section of the shroud.
Claims9
A wind-driven energy-generating device comprising:
- a turbine including wind-driven rotor blades;
- and a shroud enclosing same;
- said shroud including a throat within which the wind-driven rotor blades are mounted for rotation, an intake section upstream of and having an inner face converging towards the throat, a diffuser section downstream of and having an inner face diverging away from the throat, and boundary layer control means to prevent premature air separation along the inner surface of the diffuser section;
- said boundary layer control means including a plurality of air channels formed through the shroud leading from an external surface of the shroud to the internal surface of its diffuser section for injecting a flow of air of high kinetic energy from the airstream external of the shroud to the boundary layer of the airstream within the diffuser section of the shroud.
Dependencies are inferred from the claim text.