Fluid reaction surfaces (i.e. – impellers) – With means positioning fluid current driven impeller... – Offset relative to flow direction
Patent
1983-01-20
1984-05-22
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
With means positioning fluid current driven impeller...
Offset relative to flow direction
416 10, 416142, 416102, F03D 700
Patent
active
044498896
ABSTRACT:
Disclosed is an inclined axis windmill. The windmill has a plurality of blades generally transverse to the upstanding rotor shaft. The blades have an airfoil cross-sectional shape and are oriented with a negative angle of attack, thereby allowing the leading edge of the airfoil to turn into the wind. The windmill preferably has a tilting assembly which tilts the rotor shaft and blades at an angle dependent upon the velocity of the wind. As the wind velocity increases the rotor shaft is automatically tilted into a more nearly vertical position by the control tail. This automatic tilting of the windmill provides automatic control of the rotor speed. The rotor blades are preferably pivotally connected to the rotor shaft.
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