| 摘要 |
PROBLEM TO BE SOLVED: To provide fluid machinery that prevents leakage of refrigerant and can transmit recovered power from an expander to a compressor without depletion. SOLUTION: In the fluid machinery, the compressor 50 compressing fluid not less than critical pressure of the fluid, an electric motor 40 driving the compressor 50, and the expander 60 driving the compressor 50 by recovering the power generated by expansion of the fluid are housed in a casing 31 in a hermetical state.
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