Prime-mover dynamo plants – Electric control – Fluid-current motors
Reexamination Certificate
2006-01-10
2006-01-10
Ponomarenko, Nicholas (Department: 2834)
Prime-mover dynamo plants
Electric control
Fluid-current motors
C290S055000, C415S004200, C416S19700C
Reexamination Certificate
active
06984899
ABSTRACT:
A vertical axis windmill is provided wherein the amount of wind directed to blades in the power producing part of rotation and the mechanical load of multiple generators is controlled by a feedback control to maintain a relatively constant rotational frequency of the shaft of the windmill. In a preferred embodiment, two wind foils extend radially outwardly from the blades to thereby provide a scoop capable of pulling in more air than would normally be received by the blades. The wind foils then direct the wind flow to the power producing part of rotation of the blades for maximum power output, when necessary. The wind foils can close to control the wind flow to the blades. The generating capacity of a plurality of generators is also controlled in response to shaft rotation to maintain substantially constant shaft rotation.
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Kasischke James M.
Nasser Jean-Paul A.
Ponomarenko Nicholas
Stanley Michael P.
The United States of America as represented by the Secretary of
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