DIRECT-DRIVE GENERATOR OR ENGINE FOR WIND- OR HYDROPOWER PLANT OR VESSEL, AND ASSEMBLY METHOD OF SUCH PLANT Russian patent published in 2011 - IPC F03D9/00 F03D11/00 

FIELD: engines and pumps.

SUBSTANCE: turbine rotor includes direct-drive generator, rotor and stator of turbine, as well as annular hub having closed hollow profile with rotation axis, which coincides with stator central axis. Hub is made in the form of toroid or has in longitudinal section the shape of polygon, and in the section with the plane perpendicular to rotation axis of turbine rotor, shape of ring on outer and inner sides in the form of circles or polygons; at that, rotor includes at least one blade fixed on annular hub. Turbine rotor is intended for being used as propeller or screw propeller of transport vehicle.

EFFECT: rotor design provides increase of generated power at considerable increase of rotor diameter without increasing the weight of blades and increasing the loads on load-carrying structures.

22 cl, 12 dwg