| 摘要 |
PROBLEM TO BE SOLVED: To provide a slewing gear for fluid capable of improving a rotation efficiency and remarkably increasing a generating efficiency when used for electric power generation.SOLUTION: A rotation base 11 is formed in a substantially truncated cone shape and rotatably arranged around its central axis. The rotation base 11 has a bottom surface of the truncated cone and includes a circular stream accepting surface 11a arranged toward an upstream side of fluid and an inclined side surface 11b of side surface of the truncated cone. Each of a plurality of blades 12 is arranged at the rotation base 11 in such a way that it forms a rotational symmetrical shape around the central axis of the rotation base 11. Each of the blades 12 integrally has an inclined front surface part 12a protruding from the central part of the stream accepting surface 11a and extending toward an outside of an outer peripheral edge, a side surface part 12b inclined from a protruded part of the front surface part 12a toward a downstream side of the inclined side surface 11b and extending in the same direction as that of the front surface 12a, and an outer peripheral surface part 12c covering an outside part of an upstream side of the front surface part 12a and the side surface part 12b. |
