A heat generator comprising magnetocaloric elements for industrial and domestic applications having an internal heat transfer fluid circuit

Abstract

The present invention relates to a heat generator (1) characterized in that it comprises at least one thermal module (10) that comprises N adjacent magnetocaloric elements (2), arranged in a circle around a central axis (A) and subjected to a variation in magnetic field caused by magnetic devices (3) so as to make their temperature vary. These magnetocaloric elements (2) are associated with N pistons (40) subjected to an reciprocating translation movement by an actuating cam (70) to circulate the heat transfer fluid contained in the thermal module (10) in two opposite directions at the same time, so that a first fraction of the heat transfer fluid circulates towards a hot exchange chamber (5) through the magnetocaloric elements (2) subjected to a heating cycle, and that a second fraction of the heat transfer fluid circulates towards a cold exchange chamber (6) through the magnetocaloric elements (2) subjected to a cooling cycle, and inversely. The exchange chambers (5, 6) are coupled with external circuits that use the calories and frigories, such as heating, air conditioning, tempering systems, etc.