Pulse tube refrigerator

Details Pulse tube refrigerator Pulse tube refrigerator

1998-08-18

2000-08-01

Capossela, Ronald

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

60520, F25B 900

Patent

active

06094921&

ABSTRACT:
A pulse tube refrigerator includes a regenerator including a cold end and a hot end, a cold head connected to the cold end of the regenerator, a pulse tube having a cold end and a hot end and connected at its cold end to the cold head, a pressure fluctuation source connected to the hot end of the regenerator, a buffer connected to the hot end of the pulse tube through an orifice, and an auxiliary buffer connected to the hot end of the pulse tube through a buffer side control valve. The buffer and the auxiliary buffer may be replaced by a single buffer connected to the hot end of the pulse tube through an orifice and a buffer side control valve which are arranged in parallel.

REFERENCES:
patent: 4498296 (1985-02-01), Dijkstra
patent: 5269147 (1993-12-01), Ishizaki et al.
patent: 5275002 (1994-01-01), Inoue et al.
patent: 5295355 (1994-03-01), Zhou et al.
patent: 5515685 (1996-05-01), Yanai et al.
patent: 5522223 (1996-06-01), Yanai et al.
David et al, "How To Achieve The Efficiency of a Gifford-Mac Mahon Cryocooler With a Pulse Tube Refrigerator", Cryogenics 190 vol. 30 Sep. Supplement, pp. 262-266.
Mikulin et al, "Low-Temperature Expansion Pulse Tubes", Advances In Cryogenic Engineering, vol. 29, pp. 629-637.
P. 35 of 55.sup.th Symposium of Association of Low Temperature Engineering/Superconduction (discussed in the specification).

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