Vertical axis wind turbine

Details Vertical axis wind turbine Vertical axis wind turbine

1978-07-06

1981-01-27

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With control means responsive to non-cyclic condition...

Impeller rotation speed responsive

416 23, 416 32, 416119, 416197A, F03D 706

Patent

active

042472539

ABSTRACT:
Wind turbines are largely divided into vertical axis wind turbines and propeller (horizontal axis) wind turbines. The present invention discloses a vertical axis high speed wind turbine provided with rotational speed control systems. This vertical axis wind turbine is formed by having blades of a proper airfoil fitted to respective supporting arms provided radially from a vertical rotating shaft by keeping the blade span-wise direction in parallel with the shaft and being provided with aerodynamic control elements operating manually or automatically to control the rotational speed of the turbine.

REFERENCES:
patent: 1835018 (1931-12-01), Darrieus
patent: 4082479 (1978-04-01), Rangi et al.

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