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SHAFTLESS ENERGY CONVERSION DEVICE

  • US 3,867,655 A
  • Filed: 11/21/1973
  • Issued: 02/18/1975
  • Est. Priority Date: 11/21/1973
  • Status: Expired due to Term
First Claim
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1. An energy conversion device adapted to selectively convert fluid pressure energy into electrical energy in a generator mode and electrical energy into fluid pressure energy in a pump mode, the device having a hollow toroidal body with first and second opposed openings located on a common central axis, the body enclosing the following elements located on the central axis in parallel planes extending perpendicular to the central axis in the following order between the first and second openings:

  • a. a plurality of circularly spaced electromagnetic coils fixed to said body around said first opening, the coils adapted to be connected to electrical power supply means in the pump mode and to electrical energy receiving means in the generator mode;

    b. a rotatably located circular conductive rotor having a central aperture therethrough;

    c. a circular impeller having a central aperture therethrough fixed to said rotor, said impeller having a plurality of spaced narrow radial blades extending transversely away from said rotor; and

    d. a diffuser fixed to said body, said diffuser having a circular plate spaced adjacent the impeller blades and a plurality of spaced curved radial vanes secured transversely to the plate to extend away from the impeller;

    the power supply means adapted to produce a travelling electromagnetic wave which rotates about said central axis adjacent said coils to cut conductive paths of said rotor when the rotor has angular motion relative to said travelling electromagnetic wave, the device providing a reversible fluid flow path therethrough between the first and second openings having a first axial portion, a radial outward portion, a radial inward portion and a second axial portion.

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