Fluid reaction surfaces (i.e. – impellers) – With control means responsive to non-cyclic condition... – Responsive to relative working fluid velocity
Reexamination Certificate
2006-06-13
2006-06-13
Verdier, Christopher (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With control means responsive to non-cyclic condition...
Responsive to relative working fluid velocity
C416S062000, C416S13200B, C416S228000, C416S23600R, C416S237000, C416S240000, C029S889300, C029S889600, C029S889700
Reexamination Certificate
active
07059833
ABSTRACT:
A method for the improvement of wind turbine rotor efficiency blades of a wind turbine rotor with serrated trailing edges each having a plurality of span-wise, periodic indentations, in the form of saw teeth having approximately 60 degrees included angles between adjacent vertices. The efficiency of an existing wind turbine rotor is improved by the attachment of an apparatus to at least part of the trailing edge of the wind turbine blades, the apparatus being in the form of a serrated panel that is fixed to the surface of the blade and has the serrations extending into the airflow behind the trailing edge of the existing blade. The efficiency of a new wind turbine blade is improved by manufacturing the blade with serrations of at least part of the trailing edge of the wind turbine blade.
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English translation of German Patent 311,416.
Enevoldsen Peder Bay
Stiesdal Henrik
Bonus Energy A/S
Creighton Wray James
Narasimhan Meera P.
Verdier Christopher
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