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MID-TURBINE FRAME ASSEMBLY

  • US 20190316491A1
  • Filed: 05/30/2019
  • Published: 10/17/2019
  • Est. Priority Date: 02/03/2015
  • Status: Active Grant
First Claim
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1. A method of cooling a portion of a gas turbine engine comprising:

  • positioning a tie rod relative to an inner frame case, wherein the tie rod includes a bushing opening and the inner frame case includes a fastener opening;

    securing a fastener through the fastener opening in the inner frame case to a threaded bushing located in the bushing opening, wherein the threaded bushing includes a distal end that forms a clearance gap with the inner frame case; and

    transferring heat from the fastener through the threaded bushing to prevent the fastener from creeping.

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