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Electrical generator with ferrofluid bearings

  • US 6,812,583 B2
  • Filed: 02/19/2002
  • Issued: 11/02/2004
  • Est. Priority Date: 02/19/2002
  • Status: Expired due to Fees
First Claim
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1. An electrical generator, comprising:

  • a magnet constrained to move relative to an enclosure, a ferrofluid disposed between said magnet and enclosure to provide a low friction interface, a conductive coil disposed with respect to said magnet so that movement of said magnet relative to the coil generates an electrical signal in said coil, and a pair of end magnets on opposite sides of, and opposing polarity to said magnet to limit said magnet'"'"'s movement.

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