×

Rotating magnet magnetic refrigerator

  • US 6,668,560 B2
  • Filed: 12/11/2002
  • Issued: 12/30/2003
  • Est. Priority Date: 12/12/2001
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of transferring heat comprising the steps of:

  • (a) providing an annular container having a center and including a magnetic regenerator compartment arranged at a selected radius from the center, wherein the magnetic regenerator compartment has a hot side and a cold side;

    (b) providing magnetocaloric material located in the magnetic regenerator compartment, wherein the magnetocaloric material is configured to allow fluid flow through such magnetocaloric material;

    (c) providing a rotatable magnet assembly which includes a magnet located adjacent to a portion of the magnetic regenerator compartment;

    (d) rotating the magnet assembly to produce a cyclic variation in magnetic field strength in the magnetic regenerator compartment as the magnet assembly rotates;

    (e) providing a heat transfer fluid; and

    (f) passing the heat transfer fluid through the magnetic regenerator compartment.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×