Resonating blade for electric power generation
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United States of America Patent
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Feb 8, 2011
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N/A
app pub date -
Dec 2, 2009
filing date -
May 13, 2008
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Abstract
An apparatus for generating electric current from a vibrating blade exposed to a fluid flow. in one embodiment, a plurality of blades are secured within a tail cone of a steam turbine and each blade includes a magnet and a coil associated with the magnet to produce electric current in the coil when the magnet moves across the coil. Each blade is designed to have a natural frequency so that the blade will resonate under the influence of the exhaust flow from the turbine in the tail cone. Abutment members are mounted on the blade or the fixed support to limit the range of motion of the vibrating blade so that it does not exceed the fatigue limit. The blades are made from a low damping material such as titanium so that a low frequency is produced.
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