Chapter 4 Cryogenic Refrigeration Systems
Jul 29, 1980 · Cryogenic Refrigeration Systems 161 failures in the drive units of the refrigerators. The compressors that supplied high-pressure helium gas to the antenna-mounted Cryodynes® often contaminated the helium with the lubricant used in the compressor. The expression “oil carry-over” was used often when reporting Cryodyne® warm-ups (failures).
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