| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve compressor efficiency of a centrifugal compressor 27 while enlarging an operating range of the centrifugal compressor to a small flow volume side.SOLUTION: An annular treatment cavity 47 is formed within a compressor housing 29 for temporarily storing air counterflowing from a compressor impeller 31. The treatment cavity 47 is configured to surround an inlet of the compressor impeller 31, and an annular slit 49 is formed upstream of a front edge 35a of a compressor blade 35 in a storage wall 29w of the compressor housing 29.</p> |
