| 摘要 |
The present invention relates in general to the field of rotor designs using blades with a specific freedom to rotate in order to produce maximum resistance when encountering water flow in one direction, and either minimum resistance, when encountering water flow in the opposite direction. It aims at utilizing the currents of oceans and seas and rivers to generate electricity. Its design makes it possible to realize a rotor diameter much larger than existing devices for vertical axis rotors, and by this it will introduce leverage as a main characteristic for harnessing the power of relatively slow river and ocean currents by vertical axis rotors.
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