US Patent No. 10,094,239

VANE ASSEMBLY FOR A GAS TURBINE ENGINE


Patent No. 10,094,239
Issue Date October 09, 2018
Title Vane Assembly For A Gas Turbine Engine
Inventorship Ted J. Freeman, Danville, IN (US)
Bruce E. Varney, Greenwood, IN (US)
David J. Thomas, Brownsburg, IN (US)
Jeffrey A. Walston, Indianapolis, IN (US)
Assignee Rolls-Royce North American Technologies Inc., Indianapolis, IN (US) Rolls-...

Claim of US Patent No. 10,094,239

1. A vane assembly for a gas turbine engine, the assembly comprisingan inner platform made from a metallic material,
an outer platform made from a metallic material,
a ceramic-containing airfoil that extends from the inner platform to the outer platform and engaged with at least one of the inner platform and the outer platform so that some aerodynamic loads applied to the ceramic-containing airfoil are transferred directly to at least one of the inner platform and the outer platform, and
a reinforcement spar made from a metallic material that extends from the inner platform to the outer platform through a hollow core of the ceramic-containing airfoil and engages an interior surface of the ceramic-containing airfoil so that some aerodynamic loads applied to the ceramic-containing airfoil are transferred to at least one of the inner platform and the outer platform,
wherein the ceramic-containing airfoil includes a first end and a second end and the interior surface of the ceramic-containing airfoil engages the reinforcement spar adjacent to the second end of the ceramic-containing airfoil,
wherein the first end of the ceramic-containing airfoil is received in one of the inner platform and the outer platform to transfer load,
wherein the ceramic-containing airfoil is disengaged from the inner platform adjacent to the second end of the ceramic-containing airfoil.