| 摘要 |
The technology of all weather wind turbine is disclosed by applying it to a savonius design wind turbine although it can be applied to all kinds of windmills based on rotational mechanism in general and specifically in the field of wind turbines. In this current embodiment the art is used to a savonius design rotor. A Savonius rotor assembly includes two blades. Each of the blades has an outer edge and an inner edge with the outer edges of the blades lying on a circle which define the diameter of the rotor. Each of the blades has a linear portion adjacent to the inner edge and a first curved portion which is substantially an arc of a circle tangent to the linear portion and tangent to the circle defining the rotor diameter. A second curved portion is substantially coincident to the circle defining the rotor diameter. In some applications multiple blades or multiple units are mounted in layers for more torque. The major modifications however from savonius type turbine are as follows: First feature of this preferred embodiment is the free sliding movement of rotor blades/air foils cushioned by elastics/springs and balanced by counter weights. Secondly a smart self regulating system, enabling the assembly not only to survive the windy storms but also provide steadier RPMs by shutting the wind inlet gates, corresponding to the increase in RPMs caused by the gusty winds. The central shaft between the air foils can be eliminated if so desired to give free passage to the air to improve efficiency however the basic emphasis is on the principle of automatic governor mechanism rather than the rotor blade shape or angle of curve.
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