Invention Application
- Patent Title: ATTACHMENT OF AN ACOUSTIC SHROUD TO A HOUSING SHELL FOR AN AIRCRAFT TURBINE ENGINE
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Application No.: US17753547Application Date: 2020-09-09
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Publication No.: US20220333496A1Publication Date: 2022-10-20
- Inventor: Thomas DUPAYS , Clement BOUROLLEAU , Coline POULENC , Anwer SIRAJ
- Applicant: SAFRAN AIRCRAFT ENGINES
- Applicant Address: FR Paris
- Assignee: SAFRAN AIRCRAFT ENGINES
- Current Assignee: SAFRAN AIRCRAFT ENGINES
- Current Assignee Address: FR Paris
- Priority: FR1909947 20190910
- International Application: PCT/FR2020/000236 WO 20200909
- Main IPC: F01D11/12
- IPC: F01D11/12 ; F04D29/52

Abstract:
The invention relates to a method for manufacturing an aircraft turbine engine housing, the housing (23) comprising: an annular shell (29) with axis A; —an annular element (24; 253, 254) attached to the inside of the shell (29), the annular element comprising a body (25) made of NIDA-type cellular material and comprising a downstream portion (252) covered with an abradable material (26), and an upstream portion (251) without abradable material, the body (25) extending in a continuous manner from the upstream portion (251) to the downstream portion (252), the method comprising: —manufacturing the annular element in the form of a continuous annular body, —cutting the annular body into segments (253, 254), —attaching the segments to the shell, and —depositing the abradable material (26) onto the inside surface (25a) of the downstream portion (252).
Public/Granted literature
- US11905839B2 Attachment of an acoustic shroud to a housing shell for an aircraft turbine engine Public/Granted day:2024-02-20
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