| 摘要 |
To a wind turbine propeller, having a horizontal shaft orientatably mounted on a vertical axis, is associated a regulation device comprising a horizontal axis (10) integral with the shaft; a main panel (103) pivoting between a horizontal position and a vertical position and provided, on its half windward part when it is in a horizontal position, with a counterweight (1030) and, on the upper portion of said half part, with a deflector (1031); an auxiliary panel (105) carried by an arm (1050-1051) secured to the top of the main panel (103) so that said auxiliary panel is in a substantially vertical position when the main panel is in a horizontal position, the arrangement being such that, for a wind speed lower than a first predetermined speed, the main panel is stabilized in a horizontal position by the counterweight effect and the wind thrust on the deflector whereas, when said first speed is exceeded, the wind thrust to the auxiliary panel is sufficient to pivot or rock the main panel in the vertical position wherein the thrust exerted by the wind on the main panel is itself sufficient to retract the propeller. |
