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Diffuser for centrifugal compressor

  • US 20050111974A1
  • Filed: 07/09/2004
  • Published: 05/26/2005
  • Est. Priority Date: 09/24/2003
  • Status: Active Grant
First Claim
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1. A diffuser for a compressor, the diffuser comprising:

  • opposed walls defining a space disposed downstream of a compressor impeller for receiving a flow of a working fluid from the impeller;

    a vane comprising a pressure side and a suction side connected between the opposed walls for directing the working fluid through the space; and

    a flow slot formed between the vane and one of the walls, the flow slot extending along a portion of the vane upstream from a throat of the vane for allowing a portion of the flow of working fluid to pass from the pressure side to the suction side of the vane to suppress expansion of a flow separation zone on the suction side of the vane.

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