PROPELLER TYPE FLOWING FORCE PRIME MOVER AND BLADE THEREOF

摘要

A propeller type flowing force prime mover (1) with novel blade shape allowing high rotational drive force and high rotational speed irrespective of whether the speed of fluid is high or low and capable of securing safety against high speed fluid, wherein a rotating shaft (2) faces a fluid flow direction and blades (5) are generally radially fitted to the rotating shaft (2). The sections of the blades (5) are formed in a J-shape, the outsides (5a) of the J-shaped curved parts of the blades are used as the leading edges of the blades in the blade rotating direction and the insides (5b) of the J-shaped long piece parts of the blades are used as blade surfaces, and recessed parts (5c) on the insides of the curved parts are used as flow force receiving parts.