| 摘要 |
The invention relates to a rotational device to be used in a fluid to extract energy from a moving fluid stream or to convert energy into a motion of a fluid comprising main rotating means which is fixedly connected to a central rotary shaft of the rotational device, one or more rotational surfaces coupled rotatable about their rotational surface shafts, spaced away from the rotary shaft, and mounted on the main rotating means such that the main rotating means can execute by at least one rotational surface a rotational motion about the central rotary shaft, the rotational surface shafts extending parallel to the shaft of the main body, pivoting means or controlling means being provided to control or adjust the position of the rotational surface(s) relative to a direction of the moving fluid stream and comprising a respective adjusting sleeve (51, 52, 53) and/or an adjusting frame for each rotational surface, the adjusting sleeve and/or adjusting frame is arranged freely rotatable around the central rotary shaft (M), but it is not connected in fixed or force-fit manner to the central rotary shaft (M) radially, and is coupled to a respective rotational surface to transfer its pivoting motion to the rotational surface for adjusting the rotational surface.
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