WIND COLLECTION TYPE VERTICAL SHAFT WIND TURBINE

To provide a wind collection type vertical shaft wind turbine that efficiently guides wind to a wind receiving surface of a blade, which is a surface of an impeller effective for rotation of the blade, and utilizes wind power efficiently, to improve rotation of the impeller and power generation efficiency.SOLUTION: A wind collection type vertical shaft wind turbine comprises an impeller 1 having an appropriate number of blades 3 formed on a vertical shaft 2, and a casing 4 that covers the impeller 1 and has a wind inflow port 5 and a wind outflow port 6 formed therein. The casing 4 at an outer periphery part of the impeller 1 with the blades 3 oriented in an opposite direction to a wind direction is formed in an arc shape, and a wind inflow path 8 is formed on an outer periphery of an arc-shaped part 7. The wind inflow path 8 is extended into the casing 4 where the blades 3 are oriented in the opposite direction to the wind direction, and a second wind outflow port 10 is formed at an end part of an extension part 9.SELECTED DRAWING: Figure 1 【課題】羽根の回転に有効な羽根車の面である羽根の受風面に風を効率よく誘導し、風力を効率よく利用し、羽根車の回転及び発電効率を高めた集風型垂直軸風車を提供する。【解決手段】垂直軸２に適数の羽根３が形成された羽根車１と、該羽根車１を覆い風流入口５及び風流出口６が形成されたケーシング４と、からなり、風向きに対して羽根３が逆向きとなる羽根車１の外周部のケーシング４を円弧状に形成するとともに該円弧状部７の外周に風流入路８を形成し、該風流入路８を風向きに対して羽根３が逆向きとなるケーシング４の内部に延長して該延長部９の端部に第２の風流出口１０を形成してなる集風型垂直軸風車。【選択図】 図１