WATER TURBINE

PROBLEM TO BE SOLVED: To provide a water turbine having a simple structure and showing a high efficiency.SOLUTION: There are provided an introduction pipe and a water turbine main body. The introduction pipe extends in a vertical direction. Its section is circular in its shape. Its inner circumferential surface is formed with helical stator blades. The water turbine main body is installed at the upper part of the introduction pipe. The water turbine main body comprises a base disc part and blades. The base disc part is a disc arranged in a horizontal orientation that is rotatable around a vertical shaft. Its rotating shaft is coincided with a center axis of the introduction pipe. The blades are installed at the lower surface of the base disc part and expanded from the rotating center in a radial direction. Fluid flows in the introduction pipe from a lower part to an upper part and the fluid becomes a circulating flow by the stator blades, and strikes against the blades to cause the water turbine main body to rotate. 【課題】 簡易な構造であって効率の高い水車を提供する。【解決手段】 導入管と、水車本体とを備え、前記導入管は、垂直方向に延びるもので、断面円形であって、内周面に螺旋状の静止翼が形成されており、前記水車本体は、前記導入管の上部に設けられていて、基盤部と、羽根部からなり、前記基盤部は、水平向きに配置された円盤であって垂直軸周りに回転自在で、回転軸が前記導入管の中心軸と一致しており、前記羽根部は、前記基盤部の下面に設けられていて、回転中心から放射状に広がるものであり、流体が前記導入管内を下から上に向けて流れ、前記静止翼によって旋回流となり、前記羽根部に衝突して前記水車本体を回転させる。【選択図】 図１