| 摘要 |
<p>#CMT# #/CMT# The assembly has a metallic fixation ring (60) rigidly connected to an aeronautical engine and an exhaust cone (20) i.e. plug, made of ceramic matrix composite material. The exhaust cone is mounted onto the fixation ring by resiliently flexible mounting lugs (70). Each lug has an axial abutment element (720) that is radially extending from an end (72) of the lug and partially facing another end (71) and radial abutment element (721) on the former end of the lug, where the latter element is partially above the latter end of the lug. #CMT#USE : #/CMT# Afterbody assembly for an aeronautical engine (claimed) i.e. turbojet engine. #CMT#ADVANTAGE : #/CMT# The integration of the axial and radial abutment elements in the lugs allows the lugs to permit abutment of the exhaust cone on the fixation ring under heavy and ultimate loads without reinforcing the structure of the lugs and without harming flexibility of connection, thus preventing the exhaust cone from being detached from the fixation ring under the loads. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a partial sectional view of a mounting lug of an exhaust cone of an afterbody under a load. 20 : Exhaust cone 60 : Metallic fixation ring 70 : Resiliently flexible mounting lugs 71, 72 : Ends 720, 721 : Axial abutment elements #CMT#METALLURGY : #/CMT# The mounting lugs are made of a refractory metallic material chosen from Inconel (RTM: austenitic nickel-based superalloy), Waspalloy (RTM: nickel base alloy) and Hastelloy (RTM: nickel based alloy).</p> |
