Vertical-axis windmill

Details Vertical-axis windmill Vertical-axis windmill

1977-11-30

1979-07-24

Truhe, J. V.

Prime-mover dynamo plants

Fluid-current motors

Wind

310268, 415 2, 416DIG2, F03D 900

Patent

active

041624106

ABSTRACT:
A vertical-axis windmill of the Darrieus type, having much improved power output for a given rotor diameter. The rotor is surrounded by fixed upper and lower contours separated by radial stator vanes. These fixed elements cause an increase in speed of the wind as it impinges on the rotor, with a consequent power increase. The stator vanes and the airfoils of the rotor are easy to manufacture, being straight and untwisted, with constant symmetrical cross sections. The base of the rotor provides a large diameter surface of high peripheral speed for mounting magnets or coils to generate electricity efficiently.

REFERENCES:
patent: 1585566 (1926-05-01), Sindl
patent: 1835018 (1931-12-01), Darrieus
patent: 4012163 (1977-03-01), Baumgartner et al.
patent: 4039849 (1977-08-01), Mater et al.
patent: 4047834 (1977-09-01), Magoveny

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