Refrigeration – Air compressor – cooler and expander type – Motor-type expander
Patent
1984-10-15
1986-01-28
Capossela, Ronald C.
Refrigeration
Air compressor, cooler and expander type
Motor-type expander
62467, F25D 900
Patent
active
045662916
ABSTRACT:
A miniaturized high efficiency closed cycle cryogenic cooling system employs an integral electrically-actuated diaphragm compressor and expander arranged to enable the work of expansion of a portion of compressed gas to be applied to the compressor via a fluid coupling to reduce the external input power requirements of the compressor. Another portion of compressed gas is expanded through an expansion valve and liquefied at the cryogenic temperature. The expanded gas from the expander and the expansion valve is returned to the compressor through a heat exchanger to pre cool the portions of compressed gas prior to expansion.
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Proceedings of the Internat'l. Cryogenic Engineering Conference, Kyoto, 1974, "N4 Experiments on a Modified Kirk Cycle", pp. 361-366.
Capossela Ronald C.
General Pneumatics Corporation
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