Patent ID: 8167544
Filing Date: 2012-05-01
Classification: F03B,F03D,F05B,Y02E

Abstract:
1. Rotational device for use in a fluid and for extracting energy from the moving stream of a fluid or for converting energy into motion of a fluid, the rotational device comprising: two or more stationary supporting cheeks; a central rotary shaft; main rotating means comprising one or more rotational cheeks spaced away from each other and rigidly connected to the central rotary shaft, two or more rotational surfaces each coupled rotatable about a rotational surface rotary shaft spaced away from the central rotary shaft of the main rotating means such that the main rotating means can execute by the rotational surfaces a rotational motion about the central rotary shaft, the rotational surfaces rotary shafts extending parallel to the central rotary shaft of the main rotating means and being mounted in the rotational cheeks, adjusting means adjusting the angles or inclinations of the rotational surfaces to a flowing direction of the fluid, and a pivoting control wheel coupled to the adjusting means and arranged to rotate freely about the central rotary shaft, wherein the rotational surface rotary shafts extending between the rotational cheeks; the central rotary shaft extending between the supporting cheeks that are interconnected by bars, and the rotational cheeks, and the pivoting control wheel is coupled to the two or more rotational surfaces such that its rotational motion is transferred to the rotational surfaces to adjust the angles or inclinations of the rotational surfaces relative to the flowing direction of the fluid synchronously.