Patent ID: 6668560
Filing Date: 2003-12-30
Classification: F25B,Y02B

Abstract:
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.