Magnetic refrigerating apparatus

Details Magnetic refrigerating apparatus Magnetic refrigerating apparatus

1985-02-13

1985-11-26

King, Lloyd L.

Refrigeration

Using electrical or magnetic effect

Thermoelectric; e.g., peltier effect

F25B 2102

Patent

active

045547904

ABSTRACT:
A magnetic refrigerating apparatus comprises two pairs of superconductive coils for generating magnetic fields, a tank for receiving helium to be cooled, and a pair of heat absorbers each including a working substance adapted to generate heat when located inside the magnetic field generated by the coils and to absorb heat when located outside the magnetic field. The heat absorbers are alternately transferred between a first position where either of the heat absorbers is located inside the magnetic field and a second position where the heat absorber is located outside the magnetic field so that one of the heat absorbers is in the first position when the other is in the second position, whereby helium is cooled by either of the heat absorbers when the heat absorber is in the second position. The heat absorbers each include working substance pieces arranged at regular intervals along the direction of transfer thereof, and adiabatic spacers each interposed adjacent pieces to prevent direct contact between the pieces.

REFERENCES:
patent: 3393526 (1968-07-01), Pearl
patent: 4033734 (1977-07-01), Steyert, Jr. et al.
patent: 4332135 (1982-06-01), Barclay et al.

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