Magnetocaloric generator

A magnetocaloric generator, comprising a set of active elements based of Magnetocaloric Materials, and a magnetic arrangement arranged to be movable with respect to said set of active elements, said magnetic arrangement comprising two superposed magnetic rotors, namely an external magnetic rotor and an internal magnetic rotor delimiting an air gap between them, said external magnetic rotor and said internal magnetic rotor comprising one same number of magnetic poles, said set of active elements constituting a stator disposed in said air gap, and said active elements extending longitudinally in said stator between a hot end and a cold end of said generator, wherein one of said external or internal magnetic rotors is coupled, on the one hand, to an electrical machine by a mechanical coupling, and on the other hand, to the other of said internal or external magnetic rotors by a magnetic coupling, such that said rotors move in one same direction and are magnetically synchronous.