Is a
Patent attributes
Patent Applicant
Patent Jurisdiction
Patent Number
Date of Patent
July 31, 2018
Patent Application Number
14847363
Date Filed
September 8, 2015
Patent Citations Received
Patent Primary Examiner
Patent abstract
A mid-turbine frame for a gas turbine engine includes a CMC outer ring, a CMC inner ring, and a multiple of CMC airfoils between the CMC outer ring and the CMC inner ring. Each of the CMC airfoils includes at least one hollow tube and a shell of a multiple of CMC plies surrounding the hollow tube. The hollow tube reinforces the shell. A spring biased tie-rod assembly is mounted through at least one of the multiple of CMC airfoils.
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