Patent ID: 8826669
Filing Date: 2014-09-09
Classification: F02C,F02K

Abstract:
1. A turbine exhaust case disposed downstream of a last stage of turbine blades of a turbofan engine for exhausting hot gases to the atmosphere, the engine having an axis, the turbine exhaust case comprising a radially outer annular shroud and a radially inner annular shroud concentrically mounted about said axis and defining therebetween an annular gaspath for channeling hot gases received from the last stage of turbine blades of the engine, a plurality of circumferentially spaced-apart turbine exhaust struts extending radially across the gaspath between the radially outer and the radially inner annular shrouds, at least the radially inner shroud being circumferentially segmented into a plurality of separate arcuate acoustic panels, the exhaust struts being mounted to said separate arcuate panels, each acoustic panel having an acoustic treatment applied substantially along a full axial length thereof.