To provide a magnetic refrigerating apparatus which has simple structure, which causes a strong magnetic field to be exerted on a magnetic working substance, and which has a pair of permanent magnetic circuits having circular Halbach array fitted to a common rotary shaft.
A magnetic refrigerating apparatus includes a rotor A and a stator B, The rotor A includes: a permanent magnet assembly 1 that generates a magnetic field space 11 in which interval is set by a spacer 4 with respect to permanent magnetic circuits 2, 3 having circular Hulbach arrays stored in non-magnetic containers 1A, 1B; and the common rotary shaft 5 fitting the permanent magnet assembly 1. The stator B includes a duct 12 which is stored with the magnetic working substance supported by a fixed member and is arranged in the magnetic field space 11, then, magnetic refrigeration based on magnetocaloric effect is performed by action of the magnetic field in the magnetic field space 11 with respect to the duct 12 stored with the magnetic working substance.
NAGASHIMA MASARU
ARAI YUKI
MIZUNO KATSUTOSHI
ITO KOJI
AKIYAMA SHINICHI
IKEDA MASAFUMI
MURAKAMI MASAHITO
SHIBAURA INST OF TECH
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Makoto Kawai
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