Combined cold compressor/ejector helium refrigerator

Details Combined cold compressor/ejector helium refrigerator Combined cold compressor/ejector helium refrigerator

1984-06-05

1985-10-22

Capossela, Ronald C.

Refrigeration

Refrigeration producer

Compressor-condenser-evaporator circuit

62514R, F25B 106

Patent

active

045480532

ABSTRACT:
A refrigeration apparatus having an ejector operatively connected with a cold compressor to form a two-stage pumping system. This pumping system is used to lower the pressure, and thereby the temperature of a bath of boiling refrigerant (helium). The apparatus as thus arranged and operated has substantially improved operating efficiency when compared to other processes or arrangements for achieving a similar low pressure.

REFERENCES:
patent: 3447339 (1969-06-01), Rietdijk
patent: 3611740 (1971-10-01), Giger
patent: 4189930 (1980-02-01), Davydov et al.
patent: 4242885 (1981-06-01), Quark et al.
Brown et al: "Design of a 24.8 kW, 3.8-K Cryogenic System for Isabelle", Advances in Cryogenic Engineering, vol. 27, New York, 1982.
Brown et al: "Cycle Design for the Isabelle Helium Refrigerator", Advances in Cryogenic Engineering, vol. 27, New York, 1982.
Brown et al: "Cycle Design for the Isabelle Helium Refrigerator" (BNL 30006), published by Brookhaven National Laboratory presented as paper at 1981 Cryogenic Engineering Conference at San Diego, Cal., 8/10-14, 1981.
Ku et al: "A Helium Refrigerator with Features for Supercritical Pressure Cooling" (BNL 33592), published by Brookhaven National Laboratory presented at the Cryogenic Engineering Conf, Aug. 15-19, 1983.

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