Patent ID: 8820093

Claim:
A magnetocaloric heat generator comprising: at least two magnetocaloric elements ( 2 , 12 ) arranged in succession and making up at least two consecutive thermal stages crossed by separate heat transfer fluids and each comprising two opposite ends ( 3 and 4 , 13 and 14 ), a magnetic arrangement intended for subjecting each magnetocaloric element ( 2 , 12 ) to a variable magnetic field thereby alternately creating a heating cycle and a cooling cycle in each magnetocaloric element ( 2 , 12 ), a means ( 7 , 8 , 8 ′, 9 , 11 , 15 , 25 ) for circulating the heat transfer fluids through the magnetocaloric elements alternately towards one end of the magnetocaloric heat generator and towards the opposite end of the magnetocaloric heat generator, and vice versa, in synchronisation with a variation of the magnetic field; wherein the magnetocaloric elements ( 2 , 12 ) are connected thermally two by two at consecutive ends ( 4 , 13 ) thereof through an intermediary of a heat exchange means ( 5 , 25 , 35 ) in thermal contact respectively with the heat transfer fluid circulating in the first ( 2 ) of the magnetocaloric elements and with the heat transfer fluid circulating in the second ( 12 ) of the magnetocaloric elements.