| 摘要 |
A diffuser augmented wind turbine structure comprising a rotor assembly and an electric generator characterised in that the structure includes an axially disposed longitudinal loadcarrying beam (1) which supports the rotor assembly and electric generator and defines a longitudinal axis about which the rotor (R1) rotates, means for rendering the structure buoyant in air whereby the structure may be maintained airborne above the surface of the earth, said means including an annular lighter than air gas-filled shroud (3) surrounding the beam (1) to define a diffuser duct in which the rotor (R1) rotates, means (1a) for maintaining the shroud (3) in aerodynamically fixed relation to the beam (1), and a stabilising stay system (10, 12, 13) connecting the beam (1) to anchor means (9) located at the surface of the earth such that the air-borne structure may travel in a circular path around the anchor means whereby the structure may be maintained substantially downwind of the anchor means with the diffuser inlet facing substantially into the wind irrespective of the direction of the wind. |
