Fluid reaction surfaces (i.e. – impellers) – With control means responsive to non-cyclic condition... – Impeller rotation speed responsive
Patent
1982-06-22
1984-07-31
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
With control means responsive to non-cyclic condition...
Impeller rotation speed responsive
416 49, F03D 704
Patent
active
044627530
ABSTRACT:
A blade feathering system for wind turbines includes a feather actuator (299), control means (330 and 335) operatively connected thereto and an adjustment means (340) operatively connected to the control means for selectively varying the rate of operation of the feather actuator for feathering the wind turbine blades (10 and 15) at a variable rate.
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Harner Kermit I.
Patrick John P.
Vosseller Kenneth F.
Powell Jr. Everette A.
Swiatocha John
United Technologies Corporation
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