Wave energy absorber
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United States of America Patent
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Apr 16, 2013
Grant Date -
Mar 17, 2011
app pub date -
Jan 14, 2009
filing date -
Jan 14, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A wave-power unit for extracting in an efficient way energy from waves on a water surface in different offshore conditions, including a main buoyant structure moored to the seabed with taut mooring lines and placed at a submerged, wave active depth, a linear generator placed within the buoyant structure and activated via a taut mooring line. The unit also includes a power take off cable connected to the linear generator and leading via the seabed to shore, and is characterized in that the buoyant structure is provided with fixed buoyancy and with elements to vary the surface of the buoyant structure that is exposed to the dynamic pressure of the wave, to optimize the surface for an efficient power take-off for more than one wave frequency and to control the tension in the taut mooring lines.
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