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Method of providing non-uniform stator vane spacing in a compressor

  • US 7,743,497 B2
  • Filed: 10/06/2005
  • Issued: 06/29/2010
  • Est. Priority Date: 10/06/2005
  • Status: Active Grant
First Claim
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1. A method of retrofitting a compressor comprising the steps of:

  • (a) removing an upper half of the compressor casing in situ to open the compressor;

    (b) removing a first set of stator vanes of an array thereof having a first blade count from the removed upper half of the compressor casing;

    (c) in place of the removed first set of stator vanes, installing in the removed upper half of the compressor casing a second set of stator vanes with a second vane count different than the vane count of said first set of stator vanes, while maintaining without change, all original stator vanes in a lower half of the compressor casing; and

    (d) closing the compressor by securing the upper half of the compressor casing with the second set of stator vanes to the lower half of the compressor casing.

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