US Patent 11448097 Turbine exhaust strut internal core structure

A turbine exhaust case (TEC) includes an outer case, an inner case, and a plurality of struts structurally connecting the inner case to the outer case. At least one of the struts has an airfoil body with a hollow core. A leading edge stiffener is provided at the radially inner end of the airfoil body. The leading edge stiffener projects into the hollow core and merges with a stiffener ring projecting from a radially inner surface of the inner case.