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Device and method for harvesting energy from flow-induced oscillations

  • US 8,519,554 B2
  • Filed: 10/12/2010
  • Issued: 08/27/2013
  • Est. Priority Date: 10/12/2009
  • Status: Expired due to Fees
First Claim
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1. A device for generating electrical power from a flow, said device comprising:

  • at least one elastic element for placing into the flow, said elastic element having one end fixed to a base and another free end is in a free motion caused by the flow;

    at least one conductor, wherein said at least one conductor is attached to said at least one elastic element;

    wherein the conductor comprises an active portion and a passive portion;

    wherein the elastic element and at least some portion of the conductor are substantially perpendicular to the base;

    and a magnetic field source configured to apply a magnetic field to said at least one conductor with the active portion at the free end being exposed to the magnetic field;

    a direction of the magnetic field being substantially perpendicular to the active portion;

    wherein said elastic element is configured to oscillate in response to said flow, causing displacements of the active portion in said magnetic field, the displacements being substantially perpendicular to the direction of the magnetic field, said magnetic field inducing an electromotive force in the conductor.

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