Vertical axis wind turbine

Fluid reaction surfaces (i.e. – impellers) – With control means responsive to non-cyclic condition... – Impeller rotation speed responsive

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Details

416119, 416197A, 416175, F03D 706

Patent

active

042472520

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 a starting and braking control system. This vertical axis wind turbine is formed by having blades of a proper airfoil fitted to respective supporting arms provided radially from a vertical rotary axis by keeping the blade span-wise direction in parallel with said axis and being provided with a low speed control windmill in which the radial position of each operating piece varies with a centrifugal force produced by the rotation of said vertical rotary axis.

REFERENCES:
patent: 175530 (1876-03-01), Vernor
patent: 1319174 (1919-10-01), Ochoa
patent: 1415645 (1922-05-01), Holterud
patent: 1609883 (1926-12-01), Potts
patent: 1766765 (1930-06-01), Savonius
patent: 2067542 (1937-01-01), Penton
patent: 3918839 (1975-11-01), Blackwell et al.
patent: 4061926 (1977-12-01), Peed
patent: 4082479 (1978-04-01), Rangi et al.

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