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Harvesting energy from fluid flow

  • US 10,367,434 B2
  • Filed: 05/30/2017
  • Issued: 07/30/2019
  • Est. Priority Date: 05/30/2017
  • Status: Active Grant
First Claim
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1. An elastic bluff body, comprising:

  • an elastic mount with a central axis;

    a cylindrical bluff body with a central axis, the bluff body fixedly attached to the elastic mount, the central axis of the elastic mount and the central axis of the bluff body being aligned, the bluff body being configured to generate vortex shedding when the elastic mount orients the bluff body in a flow-line traverse to a fluid flow and vibrates linearly in response to the vortex shedding; and

    a harvester located within the bluff body aligned with the central axis of the bluff body, the harvester configured to generate power above a specified threshold in response to the vibration, wherein the harvester comprises a piezoelectric harvester or a magnetostrictive harvester, wherein the harvester comprises a cantilever beam configured to oscillate linearly in response to the vortex shedding.

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