Patent ID: 7481063

Claim:
A device for generating cold and heat by magnetic effect comprising at least one heat exchanger, the device comprising: a principal circuit ( 13 ) comprising a first heat exchanger ( 11 ) and a second heat exchanger ( 12 ) connected in series through which circulates a mixture of transmitting fluid containing particles comprising a magneto-calorific material or a superconductive material or a mixture thereof; magnetic elements ( 14 ) for generating a magnetic field in the first heat exchanger ( 11 ) so that the particles undergo a rise in temperature when passing through the magnetic field and undergo cooling upon leaving the magnetic field; a hot circuit ( 15 ) connected to the first heat exchanger ( 11 ); and at least one cold circuit ( 16 ) connected to the second heat exchanger ( 12 ) wherein the first heat exchanger ( 11 ) comprises an exterior envelope ( 11 a ) and interior conduits ( 11 b ), the interior conduits ( 11 b ) serving as vehicles for a heat-transmitting fluid ( 15 a ) from the hot circuit ( 15 ) and submerged in the mixture of transmitting fluid and particles ( 13 a ) from the principal circuit ( 13 ), the magnetic elements ( 14 ) constitute at least a portion of the exterior envelope ( 11 a ) of the heat exchanger ( 11 ).