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Lightweight cast inner diameter vane shroud for variable stator vanes

  • US 7,753,647 B2
  • Filed: 07/20/2005
  • Issued: 07/13/2010
  • Est. Priority Date: 07/20/2005
  • Status: Expired due to Fees
First Claim
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1. A stator vane section for use in a turbine engine, the stator vane section comprising:

  • an outer diameter fan case;

    a plurality of stator vanes each comprising;

    an inner diameter end; and

    an outer diameter end for rotating in the outer diameter fan case;

    an inner diameter vane shroud comprising;

    a forward inner diameter shroud component comprising;

    a forward hollow channel running circumferentially through an interior of the forward shroud component;

    a forward fastener hole extending through the forward inner diameter vane shroud component to intersect the forward hollow channel; and

    a plurality of forward recesses; and

    an aft shroud component comprising;

    an aft hollow channel running circumferentially through an interior of the aft shroud component;

    an aft fastener hole extending into and terminating within the aft shroud component so as to align with the forward fastener hole and not intersect the aft hollow channel; and

    a plurality of aft recesses that mate with the forward recesses to receive the inner diameter ends of stator vanes.

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