Patent ID: 8482141

Claim:
A flow energy installation comprising: a housing having a droplet-shaped cross section including a leading face, a trailing face and opposing side surfaces that connect the leading and trailing faces, wherein the housing is configured to be adjusted about its vertical axis that is aligned with a flow direction, wherein the housing has an inlet opening on its leading face that leads to an inner flow channel that is substantially enclosed between a flat top surface and a flat bottom surface, and leads to side outlet openings that are each formed on one of the opposing side surfaces, and wherein the inner flow channel has boundary surfaces which run in a convex shape in an inlet area that is adjacent to the inlet opening, and at least one axial incident-flow propeller arranged in the inner flow channel, wherein an axis of rotation of the at least one axial incident-flow propeller is parallel to a direction of fluid flow through the inner flow channel and the at least one axial incident-flow propeller extends across an entire width of the inner flow channel.