Patent ID: 7610763

Claim:
A mid-turbine frame having an expandable design connected to an engine casing of a jet turbine engine for compensating a first load from a first bearing and a second load from a second bearing, the mid-turbine frame comprising: a plurality of expandable frame segments circumferentially spaced within the jet turbine engine, each expandable frame segment comprising: at least one torque box for absorbing the first and second loads; a first bearing cone connecting the first bearing to the torque box; a second bearing cone connecting the second bearing to the torque box; and at least one strut connecting the torque box to the engine casing, wherein the torque box comprises a portion of a first bearing cone, a portion of a second bearing cone and a plurality of oleo struts connected to the first and second bearing cones, and wherein the strut is connected between the oleo struts and the engine casing, and wherein the strut comprises a plurality of pre-stressed rods positioned to form a frame and a plurality of pre-stressed wires positioned within the frame.