 SAVONIUS ROTOR PUMPING WATERE&MP 100.002 Power from Wind May 13, 1931 The new S-shaped rotor invented by S. J. Savonius of Helsingfors, Finland. This is the most efficient means known of getting power from moving air and has been used as a ventilator. A similar rotor can also be used as a tidal motor in which case it always turns in the same direction regardless of whether the tide is ebbing or flooding. Savonius rotor pumping water.
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