| 摘要 |
PROBLEM TO BE SOLVED: To provide a centrifugal compressor preventing airstream from being separated from vanes. SOLUTION: This centrifugal compressor 1 has an impeller 2 for feeding air radially outward. A radial diffuser 5 for converting the speed energy of the air to the pressure is disposed on the outer peripheral side of the impeller 2. The radial diffuser 5 has the plurality of radial vanes 8 which are formed in the circumferential direction of the diffuser and which form an air flow passage 7 for flowing the air radially outward. An axial diffuser 11 for returning the flow direction of the air in the axial direction is disposed on the outer peripheral side of the radial diffuser 5. An air blowing section 9 for blowing air toward the axial diffuser 11 along the projecting side wall surface 8a of the radial vanes 8 is formed in each radial vane 8. An air introduction port 10 communicating with the air blowing section 9 and guiding the air discharged from the axial diffuser 11 is formed in the base 6 of the radial diffuser 5. COPYRIGHT: (C)2009,JPO&INPIT
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