Patent ID: 8154145

Claim:
Flow energy installation with at least one in particular roller-like rotor ( 1 ) which rotates about an axis (A 1 ) and has a plurality of rotor blades ( 2 ), wherein one, a plurality or all rotor blades ( 2 ) have associated with them at least one efficiency-improving fluid conducting fin ( 3 ) which in the direction of rotation is arranged upstream or downstream of the rotor blade ( 2 ) and/or the rotor is at least partly surrounded by at least one efficiency-improving diffuser element, and wherein the flow energy installation can be operated with fluid media at any desired orientation of the axis (A 1 ), wherein the diffuser element comprises interconnected frame-like/plate-like elements, wherein the frame-like/plate-like elements correspond in their outer contour formed on the circumferential side to an inner contour to be produced of the respective diffuser element.