SYSTEM AND METHOD FOR TRANSPORTING LUBRICANT THROUGH A VANE

Disclosed is a mid-turbine frame (610) of a gas turbine engine, including: a vane (630) extending along an axis (665a); a first fitting (680a); a second fitting (680b) spaced apart from the first fitting along the axis; a tube assembly (665) located within the vane (630) wherein a cavity (650) is defined between the vane (630) and the tube assembly (665), the tube assembly including: an outer tube (670a) coupled to the first fitting (680a) and extending therefrom to the second fitting (680b); an inner tube (670b) located within the outer tube (670a) and extending from the first fitting (680a) to the second fitting (680b); and an outer passage (690a) defined between the outer tube and the inner tube, and an inner passage (690b) defined within the inner tube, wherein the cavity (650), the outer passage (690a) and the inner passage (690b) are fluidly isolated from one another, and the cavity (650) is configured to direct a cooling flow (710) therethrough, and the outer tube (670a) is configured to direct a buffer flow (720) therethrough.