| 摘要 |
The invention relates to a device for generating a lifting force for extraction of energy from a medium flowing by, comprising an elongated body (11) having an outer surface (12) for affecting a first medium flowing by, a first end (13) connected to an underlayer through a bearing (19) and a free second end (14), wherein the elongated body (11) is arranged pivotally around at least one portion of the bearing (19). The elongated body (11) comprises a plurality of slits (25) for a second medium flowing out through the slits (25), wherein the second medium flows out towards the outer surface (12) to affect the first medium flowing by the outer surface (12) while generating a lifting force. Further, the slits (25) are adjustable, wherein a direction of the second medium flowing out is adjustable for alternating a direction of the lifting force while bringing the elongated body (11) around the bearing (19). |
