| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that it is impossible for a conventional wind power water cleaning device to efficiently use wind energy fluctuating with a place or time, the conventional wind power water cleaning device being equipped with a windmill unit for converting wind power to rotation power by a windmill and a water stream generating unit for rotating a screw by the rotation power to generate a water stream. <P>SOLUTION: The screw 9 includes a blade supporter 40 which is rotated by a screw shaft 8 for transmitting the rotation power, and blades 42, 142 which are rotatably supported via a blade shaft 41 on the outer periphery of the blade supporter 40. The screw 9 further includes angle control mechanisms 38, 138 which automatically increase or decrease inclination angles 51, 151 between the blade 42 and the surface 53 of rotation of the screw 9 according to the rotation speed of the screw 9, and a cylindrical body 32 which forms a water passage 58 surrounding the screw 9 between the body itself and the blade supporter 40. <P>COPYRIGHT: (C)2013,JPO&INPIT |
