US Patent 10329956 Multi-function boss for a turbine exhaust case

A turbine exhaust case frame (100) comprises an inner ring (104), an outer ring (102), and a plurality of load-bearing struts (106). The inner ring is configured to carry load from inner bearings. The outer ring features a multi-function boss (116) with a service line aperture (124) and a mounting point for the turbine exhaust case. The load-bearing struts connect the inner ring to the outer ring, and have a service line passage (128) extending from the service line aperture to the inner ring.