Method of magnetic refrigeration and a magnetic refrigerating ap

Details Method of magnetic refrigeration and a magnetic refrigerating ap Method of magnetic refrigeration and a magnetic refrigerating ap

1986-08-18

1987-06-23

King, Lloyd L.

Refrigeration

Using electrical or magnetic effect

Thermoelectric; e.g., peltier effect

F25B 2102

Patent

active

046742883

ABSTRACT:
A magnetic refrigerating apparatus comprises a working substance adapted to produce heat when magnetized, and cool down when demagnetized, a superconductive coil for applying a predetermined magnetic field to the working substance, a regenerating pipe having a high-temperature portion and a low-temperature portion and being movable between a first position, where the high-temperature portion is located far away from the coil, and the low-temperature portion is located close to the coil, and a second position where the high-temperature portion is located close to the coil, and the low-temperature portion is located inside a vessel. The working substance and the regenerating pipe are respectively, so moved that the regenerating pipe is in the second position when the working substance is in the magnetization position, and that the regenerating pipe is in the first position when the working substance is in the demagnetization position.

REFERENCES:
patent: 4033734 (1977-07-01), Stegert, Jr. et al.
patent: 4069028 (1978-01-01), Brown
patent: 4459811 (1984-07-01), Barclay et al.
patent: 4554790 (1985-11-01), Nakagome et al.
patent: 4599866 (1986-07-01), Nakagome et al.
Cryogenics, Oct. 1981, "Double Acting Reciprocating Magnetic Refrigerator: First Experiments", A. A. Laraze et al.

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