초록 ▼

A blade of a wind turbine is presented. This blade is provided with a root section for connecting the blade to the shaft or hub of the turbine. The blade also contains a wind-energy-absorbing profile which is optimized for wind flow. The output of the wind turbine is increased by providing the root

A blade of a wind turbine is presented. This blade is provided with a root section for connecting the blade to the shaft or hub of the turbine. The blade also contains a wind-energy-absorbing profile which is optimized for wind flow. The output of the wind turbine is increased by providing the root section with a member that is designed in such a way that the assembly consisting of the member and the root section can absorb wind energy and will increase the overall efficiency of the wind turbine.

대표청구항 ▼

1. A blade of a wind turbine, comprising:a cylindrical connection part; a connection means, provided at one end of the cylindrical connection part, for connection of the cylindrical connection part to a shaft/hub of a wind turbine, the cylindrical connection part having a wind-energy-absorbing profi

1. A blade of a wind turbine, comprising:a cylindrical connection part; a connection means, provided at one end of the cylindrical connection part, for connection of the cylindrical connection part to a shaft/hub of a wind turbine, the cylindrical connection part having a wind-energy-absorbing profile which is optimized for wind flow and extends from another end of the connection part; the connection part being provided with a member that is designed in such a way that an assembly comprising the member and the connection part can absorb wind energy; said member comprising a rib that projects from the cylindrical connection part; said rib being arranged in a plane that forms an angle, which on the pressure side lies between 45° and 135° to the chordal plane of said wind-energy-absorbing profile. 2. The blade according to claim 1, in which said rib is fitted in a plane that forms an angle of approximately 90° to the chordal plane of said wind-energy-absorbing profile.3. The blade according to claim 1, in which said connection part comprises a substantially circular cross section and said rib projects from the cross section.4. The blade according to claim 1, wherein said connection part comprises a transition from a circular to an aerodynamic profile.5. The blade according to claim 1, wherein the height of the rib lies between 0.05 and 0.3 times the diameter or thickness of the connection part.6. The blade according to claim 1, wherein the connection part is provided with vortex-producing generators.7. The blade according to claim 1, designed as a flexible part.8. The blade of claim 1, wherein the rib extends spirally from the cylindrical connection part.9. The blade of claim 1, wherein, the cylindrical connection part comprises a tube.10. The blade of claim 1, wherein, the cylindrical connection part comprises a tube, and the rib projects from the tube.11. The blade of claim 10, further comprising: vortex generators fitted on the tube.12. The blade of claim 11, wherein, the vortex generators extend perpendicular to a plane of the tube.13. The blade of claim 12, wherein the vortex generators extend at an angle of 15° relative to a plane perpendicular to a longitudinal axis of the blade.14. The blade of claim 1, wherein the rib extends from the cylindrical connection part and from the wind-energy-absorbing profile.15. Method for producing a blade of a wind turbine, comprising:providing a blade comprising a cylindrical connection part provided at one end with connection means for connection to a shaft/hub of a wind turbine, and a wind-energy-absorbing profile at another end; providing a rib on the cylindrical connection part in such a way that an assembly comprising the rib and the cylindrical connection part can generate wind energy; said rib being arranged in a plane which on the pressure side lies between 45° and 135° to the chordal plane of the wind-energy-absorbing profile. 16. A blade of a wind turbine, comprising:a connection part provided at one end with a connection means for connection to a shaft/hub of a wind turbine, and a wind-energy-absorbing profile which is optimized for wind flow and extends from another end of the connection part; the connection part being provided with a member that is designed in such a way that an assembly comprising the member and the connection part can absorb wind energy; said member comprising a rib that projects from the connection part; said rib being arranged in a plane that forms an angle, which on the pressure side lies between 45° and 135° to the chordal plane of said wind-energy-absorbing profile, wherein the height of the rib lies between 0.05 and 0.3 times the diameter or thickness of the connection part.