| 摘要 |
<p>PROBLEM TO BE SOLVED: To restrain surging in a compressor device. SOLUTION: In a turbo compressor such as a centrifugal compressor provided with a structure such as a suction guide vane 22 for inducing a vortex, one or more free rotors 31, 32 are provided between a structure for inducing the vortex and a suction port of the compressor. The free rotors 31, 32 accumulate kinetic energy by being rotated by the flow, and therefore, transient fluctuation of the flow in the suction port of the compressor is so alleviated that the operation may be stabilized.</p> |
