| 摘要 |
This invention relates to a turbine, and to a method for operating a turbine, located in a stream of flowing water, for converting the kinetic energy from a stream of flowing water to useful mechanical power. The invention relates to a turbine rotor comprising a rotor drive shaft and a plurality of hydrodynamic lift-generating blades, set with negative pitch angles of approximately 4 degrees, equidistantly spaced apart circumferentially around the rotor drive shaft. The rotor is adapted for locating in a stream of flowing water, in a "cross-flow" orientation rather than an "axial-flow" orientation, so that each blade passes twice through an air/water interface adjacent the surface plane of the stream of flowing water during each revolution of the rotor, and each blade is longitudinally inclined relative to the surface plane of the stream of flowing watrer at an angle greater than zero degrees and less that 90 degrees.
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