×

Energy extraction system

  • US 9,074,595 B2
  • Filed: 03/12/2013
  • Issued: 07/07/2015
  • Est. Priority Date: 03/20/2012
  • Status: Active Grant
First Claim
Patent Images

1. An energy extraction system for a rotational surface, comprising:

  • a drive mechanism having a rotational axis and configured to rotatably couple to the rotational surface, the drive mechanism comprising;

    a cam rotatable about the rotational axis;

    an eccentric mass coupled to the cam that offsets a center of mass of the drive mechanism from the rotational axis, the eccentric mass comprising a first and a second section, the eccentric mass operable between a) a cohesive mode wherein the first and second sections are adjacent when a rotation frequency of the rotational surface is different from an excitation frequency of the eccentric mass; and

    b) a separated mode wherein the first and second sections are separated when the rotation frequency is substantially equal to the excitation frequency;

    an energy extraction mechanism connected to the cam and statically coupled to the rotating surface, the energy extraction mechanism configured to extract energy from relative rotation between the energy extraction mechanism and the cam.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×