Device for refrigeration or heat pumping with a regenerator

摘要

The device comprises a porous element 1 made of a magnetic material extending longitudinally between two end surfaces 2, 3 and at least one magnet or electromagnet 4 having an air gap 5 in which the magnetic field H is perpendicular to the porous element; means are provided for moving this magnet or electromagnet so that the element 1 of magnetic material can be placed alternately and successively in and out of the air gap 5, these movements causing an increase in the temperature of the magnetic element near the first of the two surfaces 2 and a reduction in the temperature of the magnetic element near the second of the surfaces, 3. The device also comprises means 14 for making the fluid flow through the magnetic element. Application to refrigeration or heat pumping. <IMAGE>