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Stator assembly for a rotary machine and clip member for a stator assembly

  • US 6,409,472 B1
  • Filed: 07/31/2000
  • Issued: 06/25/2002
  • Est. Priority Date: 08/09/1999
  • Status: Expired due to Term
First Claim
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1. A stator assembly which is for a rotary machine having a working medium flowpath, which is disposed about an axis A, which has an installed condition in the rotary machine, and which has a plurality of stator vanes extending in a generally radial direction and, in the installed condition, extending inwardly across the working medium flowpath, which comprises:

  • a shroud extending circumferentially with respect to the axis A for receiving the vanes, the shroud having a first side which faces toward the flowpath in the installed condition and a second side spaced radially away from the first side, and having a plurality of openings each of which adapts the shroud for receiving an associated stator vane;

    an elastomeric material which engages the shroud and which is adapted to be disposed about the stator vanes on the second side of the shroud;

    at least one stator vane having an airfoil extending spanwisely, the vane extending through the opening in the shroud, the vane having a tip on the second side of the shroud, the tip having a lock opening spaced from the second side of the shroud;

    a clip member which is disposed in the lock opening on the second side of the shroud and which is spaced spanwisely from the opening for the vane through the shroud, the clip member extending chordwisely with respect to the vane and circumferentially with respect to the vane such that it extends beyond the opening in the shroud;

    wherein the tip of the vane and the clip member are disposed in the elastomeric material to form an inner shroud assembly and wherein under operative conditions movement of the tip of the vane through the shroud is blocked by the clip being urged against and engaging the shroud as a result of movement of the clip.

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