Methods and apparatus for deicing airfoils or rotor blades
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United States of America Patent
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May 15, 2007
Grant Date -
Jan 26, 2006
app pub date -
Jul 20, 2004
filing date -
Jul 20, 2004
priority date (Note) -
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Abstract
A method for deicing a rotor blade having a blade root, a blade tip, and a leading edge in which the rotor blade is operably coupled to a hub of a turbine includes circulating heated air through an outflow channel from the blade root towards the blade tip, recirculating the heated air via a return channel from the blade tip to the blade root, whereupon the recirculated heated air becomes returned air, and reheating the returned air for further circulation.
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