| 摘要 |
The water turbine of the present invention includes a housing defining a generally cylindrical chamber therein defining a laterally extending opening. Rotatably positioned within the chamber is a rotor including a plurality of folding wings or vanes extending outwardly therefrom. Each vane includes a first blade section which is immovably fixed with respect to the rotor hub and a second blade section which is pivotally secured with respect to the first blade section. This pivotal movement of the second blade toward the nonpropelling side of the vane is restricted by a stop whereas pivotal movement of the second blade section toward the propelling side of the vane is made possible. A biasing device is included to urge the second blade section into contact with the stop which is the propulsion of the vane. To protect the joined connection between the first and second blade sections a covering means preferably including an expandable and contractable baffle section may be included. With this configuration the inner covering would preferably be of a resilient material to thereby comprise the biasing device. The folding wing design of the rotor allows full operational rotation thereof with the rotor extending perhaps only partially along the laterally extending opening of the housing. The rotor can be of any vertical dimension depending on the normal surrounding environment of the particular water in which a specific turbine is being positioned. In this manner a water turbine device for utilizing the kinetic energy of moving water by transferring it into electrical energy is created.
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