VERTICAL AXIS DRAG TYPE WIND TURBINE CAPABLE OF PREVENTING ITS OVERSPEED UNDER STRONG WIND AND WIND POWER GENERATOR

摘要

PROBLEM TO BE SOLVED: To provide a vertical axis drag type wind turbine capable of preventing its overspeed even under acceptance of strong wind, in particular getting in preparation for strong wind in advance or adjusting its number of rotation or an amount of power generation under judgment of a user.;SOLUTION: This invention provides a vertical axis drag type wind turbine comprising: a rotary shaft installed at a center of rotation; an upper rotary member and a lower rotary member installed to be spaced apart in an axial direction of the rotary shaft; and a plurality of blade members between the upper rotary member and the lower rotary member equally spaced apart in a concentric manner with the rotary shaft. Each of the blade members is held by the upper rotary member and the lower rotary member. The upper rotary member and the lower rotary member are installed around the rotary shaft in such a way that they can be rotated relative to each other.;COPYRIGHT: (C)2015,JPO&INPIT