Brevet : EP2314870 - EOLIENNE DE GENERATION D'ENERGIE ET SON PROCEDE DE FABRICATION

Titre

EOLIENNE DE GENERATION D'ENERGIE ET SON PROCEDE DE FABRICATION

N° et date de publication de la demande

EP2314870 - 27/04/2011

Type de la demande

A1

N° et date de dépôt

EP08778252.0 - 17/07/2008

N° et date de priorité

PCT/JP2008062960 - 17/07/2008

Famille de brevets

TW201005182A ; EP2314870A1 ; US2011171033A1 ; JPWO2010007684A1 ; WO2010007684A1 ; CN102099575A

Abrégé

A power-generating wind turbine which can be activated with a gentle breeze, prevents disturbance of the wind caused by rotation and is excellent in power generation efficiency. The power-generating wind turbine has a plurality of streamline-wing-shaped blades (3) provided every predetermined angle around a rotation shaft (3), and the blades (3) have lift coefficients of 1.0 or larger. Apertures (51) are provided within a range of 55 to 95% from a front rim (52) for a length of a chord on a rear face (6) being the rotation shaft side to the chord (54) . Thus, the turbine can be activated with a gentle breeze by drag on the apertures (51). Since the apertures (51) are provided at a position of 55 to 95% for the chord length distant from the front rim (52) of the rear face (6) of the blade (3), in a high wind speed region where the turbine rotates by the lift of the blades (3), less disturbance of the wind flow is observed on the rear faces (6) to be resistance, and thus high rotation torque can be obtained.