Abstract: The invention relates to a device, having at least one rotor, which has an axis of symmetry with respect to which the rotor is rotationally symmetrical and which is rotationally motor-driven about the axis of symmetry of the rotor and which is mounted for rotation about an axis of rotation arranged transverse to the axis of symmetry such that, in the event of incident flow of a fluid, the rotor is rotationally driven in a rotational motion about the axis of rotation by means of a force acting transversely to the fluid flow. Said device enables the production of a rotational motion when the rotor is translationally driven in the fluid relative to the fluid in the longitudinal direction of the axis of rotation.

Abstract: The power output of a wind power station with a Darrieus Rotor is enhanced by wind guides positioned around the Darrieus Rotor to form a wind concentrator. The wind guides include at least two parallel wind deflection plates, displaced along parallel direction with respect to each other.