Fluid reaction surfaces (i.e. – impellers) – Sustained ancillary movement of rotary working member – Responsive to gravity or working fluid force
Patent
1979-10-11
1981-06-23
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Sustained ancillary movement of rotary working member
Responsive to gravity or working fluid force
416132B, F03D 306, F03D 706
Patent
active
042748097
ABSTRACT:
A vertical wind turbine having vertical blades, each blade being connected intermediate its ends by a hinge to a support arm having a hub that enables the blades to rotate around a vertical axis, a tie wire connected to the blade at positions spaced along the blade from the hinge, said tie wire engaging a spring-loaded pulley disposed inwardly of the blades, the arrangement being such that when the angle of inclination of the blades to the vertical axis alters under the action of centrifugal force the tie wire exerts a force on the pulley opposing the spring force whereby as the turbine speeds up the blades will remain at a predetermined angle of inclination until the force exerted by the wire exceeds the force of the spring. One end of the tie wire can be connected to a position on one blade and connected to another position on another blade so that all of the blades adopt the same angle of inclination to the vertical axis.
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Delgado Patricio E.
Holmes Barry A.
P.I. Specialist Engineers Limited
Powell Jr. Everette A.
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