Vertical axis wind turbines

Details Vertical axis wind turbines Vertical axis wind turbines

1983-03-10

1985-12-31

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Single blade rotary impeller with counterbalance

416 87, 416117, 416132B, F03D 306

Patent

active

045618267

ABSTRACT:
A vertical axis wind turbine has one or more blades (10) mounted in cantilever manner on a hub (12) on a short tower (14). The or each blade (10) is unsupported above the level of the hub (12) and extends freely upwards. The hub (12) may be a rigid mounting or a pivot mounting. If two blades (10) are used, they are desirably arranged in a crossed configuration so as to extend along a common axis. The upward arm of the blade (10) can be straight and rigid, or flexible, or cranked, or curved. The wind turbine is suitable both for land-based use and on water-going craft.

REFERENCES:
patent: 1786057 (1930-12-01), Faley
patent: 1802094 (1931-04-01), Stuart
patent: 2605093 (1952-07-01), Dorand
patent: 4024409 (1977-05-01), Payne
patent: 4050246 (1977-09-01), Bourquardez
patent: 4087202 (1978-05-01), Musgrove
patent: 4168439 (1979-09-01), Palma
patent: 4264279 (1981-04-01), Dereng
patent: 4325674 (1982-04-01), Ljungstrom
patent: 4329116 (1982-05-01), Ljungstrom
patent: 4334823 (1982-06-01), Sharp
patent: 4355956 (1982-10-01), Ringrose et al.

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