Semi-spar wound blade

Details Semi-spar wound blade Semi-spar wound blade

1976-12-17

1978-03-28

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Formed with main spar

416230, 416241A, F03D 106

Patent

active

040812200

ABSTRACT:
A wind turbine blade in the form of a semi-spar in which the outer portion of the finished blade shape is the filament wound spar itself and the remainder of the blade incorporates a trailing edge portion, increasing in dimension toward the blade base, this part of the blade being filament wound around the spar.

REFERENCES:
patent: 3000446 (1961-09-01), Warnken
patent: 3028292 (1962-04-01), Hinds
patent: 3038543 (1962-06-01), Davidson
patent: 3237697 (1966-03-01), Ford et al.
patent: 3713753 (1973-01-01), Brunsett
patent: 3902944 (1975-09-01), Ashton et al.
patent: 3943020 (1976-03-01), Ashton et al.
patent: 3962506 (1976-06-01), Dunahoo
patent: 3967996 (1976-07-01), Kamov et al.

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