Regenerating material and refrigerator using the same

Details Regenerating material and refrigerator using the same Regenerating material and refrigerator using the same

1994-09-15

1997-01-14

Sheehan, John

Metal treatment

Stock

Magnetic

420416, 62 31, 62 6, H01F 1055

Patent

active

055935176

ABSTRACT:
The regenerating material according to the present invention comprises two alloy phases which differ in a content of rare earth elements. Of these alloy phases, a dominant phase in the regenerating material is defined as a main phase, and the other phase is defined as a sub-phase. A plurality of particles, each of which consists of a granular main phase and a sub-phase present on the surface of the main phase, gathers to form an aggregate. Otherwise, a sub-phase present in a main phase in the form of fiber. The refrigerator according to the present invention comprises a regenerator charged with above-mentioned regenerating material, a coolant gas and an expansion means for expanding the coolant gas.

REFERENCES:
patent: 4946501 (1990-08-01), Nate et al.
patent: 4957549 (1990-09-01), Matsumoto et al.
patent: 4985072 (1991-01-01), Sahashi et al.
patent: 5186765 (1993-02-01), Arai et al.
patent: 5224657 (1993-07-01), Kuriyama et al.
patent: 5269854 (1993-12-01), Takahashi et al.
patent: 5332029 (1994-07-01), Tokai et al.

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