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    ACOUSTIC PANEL FOR A TURBINE ENGINE
    3.
    发明公开
    ACOUSTIC PANEL FOR A TURBINE ENGINE 审中-公开

    公开(公告)号：US20240191656A1

    公开(公告)日：2024-06-13

    申请号：US18554958

    申请日：2022-04-11

    Applicant: SAFRAN NACELLES

    Inventor： Marc VERSAEVEL ,  Bertrand Léon Marie DESJOYEAUX ,  Pierre-Yves GINI

    IPC: F02C7/045

    CPC classification number: F02C7/045

    Abstract: An acoustic panel for a turbine engine includes a first strip and a second strip each comprising an alternation of first ridges and second ridges connected by sidewalls. The first and second strips are joined to each other to form a plurality of cells, each delimited by a first ridge of the first strip and a first ridge of the second strip. A third strip is interposed between the first strip and the second strip and includes a first lateral wall bearing on the first strip The third strip further includes at least one tab that extends inside one of the cells and delimits all or part of a passage inside the associated cell.

    PROPULSION FLOW PATH DUCT SYSTEMS AND METHODS
    6.
    发明公开
    PROPULSION FLOW PATH DUCT SYSTEMS AND METHODS 审中-公开

    公开(公告)号：US20230407775A1

    公开(公告)日：2023-12-21

    申请号：US18458588

    申请日：2023-08-30

    Applicant: THE BOEING COMPANY

    Inventor： Michael Hayes ,  Keith A. Etling ,  Jordan Kreitzman ,  Rehan Kaluarachchi ,  Manny Urcia ,  Andrews Guadron

    IPC: F01N1/02 ,  B64D27/00 ,  G10K11/16 ,  G10K11/172 ,  F02C7/045

    CPC classification number: F01N1/023 ,  B64D27/00 ,  G10K11/161 ,  G10K11/172 ,  F02C7/045 ,  F02C6/20

    Abstract: A flow path duct system for a propulsion system of an aircraft includes a base defining a flow surface. The base has an internal surface and an external surface. A plurality of perforations are formed through the base between the internal surface and the external surface. A plurality of supports define a plurality of cavities. The plurality of supports extend outwardly from the external surface of the of the base. One or more of the plurality of cavities are in fluid communication with the one or more of the plurality of perforations. A backing surface is secured to the plurality of supports. The plurality of supports are disposed between the base and the backing surface. The one or more of the plurality of cavities are in fluid communication with an internal volume defined by the internal surface of the base through the one or more of the plurality of perforations. The base, the plurality of supports, and the backing surface can be integrally formed together as a monolithic, load-bearing structure.

    ACOUSTIC PANEL WITH FOLDING CHAMBER
    9.
    发明申请
    ACOUSTIC PANEL WITH FOLDING CHAMBER 审中-公开

    公开(公告)号：US20180363558A1

    公开(公告)日：2018-12-20

    申请号：US15626913

    申请日：2017-06-19

    Applicant: Rohr, Inc.

    Inventor： Luby Weaver ,  Charles M. Biset ,  Jeffrey Woods ,  David M. Adams

    IPC: F02C7/24 ,  F02C7/045 ,  F02K1/82 ,  G10K11/172 ,  E04B1/84

    CPC classification number: F02C7/24 ,  B64D2033/0206 ,  E04B1/8409 ,  E04B1/86 ,  E04B2001/8471 ,  F02C7/045 ,  F02K1/827 ,  F05D2260/96 ,  G10K11/168 ,  G10K11/172

    Abstract: A panel is provided for attenuating noise. This panel includes a perforated first skin, a second skin, an array of corrugations, a first channel, a second channel, a plurality of first sidewalls and a plurality of second sidewalls. The array of corrugations includes a first corrugation and a second corrugation. Each of the corrugations includes a baffle and a septum. The first channel is formed by the baffle of the first corrugation, the septum of the first corrugation and the first skin. The second channel is formed by the baffle of the second corrugation, the septum of the first corrugation and the second skin. The first sidewalls divide the first channel into a plurality of first chambers. The second sidewalls divide the second channel into a plurality of second chambers. A first of the second chambers is fluidly coupled with a subset of the first chambers through perforations in the septum of the first corrugation.

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