| 摘要 |
<p>ABSTRACT VARIABLE GEOMETRY SAVONIUS ROTOR FOR THE VERTICAL AXIS WIND TURBINE The invention relates to mechanisms for governing the speed and preventing the side thrust of the rotor for the savonius type vertical axis wind turbine. The invention concerns with the design of the rotor being made self-governing to run at constant rotation per minute or to shut down by closing the concavo-convex cups (1, 2) to form a cylinder and thus making the wind turbine inactive which requires manual resetting of the turbine for returning it to the operating mode. The invention comprises biasing means (8) attached onto the inner regions of the said concavo-convex cups and corresponding governing means (9) extending from the said biasing means (8) to the central shaft (3) which is activated upon the concavo-convex cups aligning away from the centre line as the rotor speed rises beyond the threshold of the governing means pretension. The other embodiments include various improvements to the system. Fig.1</p> |
