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    TURBOFAN ENGINE INCLUDING INTEGRATED PYLON AND FAN OUTLET GUIDE VANE WITH NOISE REDUCTION FEATURES
    11.
    发明申请
    TURBOFAN ENGINE INCLUDING INTEGRATED PYLON AND FAN OUTLET GUIDE VANE WITH NOISE REDUCTION FEATURES 有权

    公开(公告)号：US20250052163A1

    公开(公告)日：2025-02-13

    申请号：US18232026

    申请日：2023-08-09

    Applicant: General Electric Company

    Inventor： Trevor H. Wood ,  Kishore Ramakrishnan ,  Egbert Geertsema

    IPC: F01D9/04 ,  F02C7/24

    Abstract: A turbofan engine and an outlet guide vane structure for the turbofan engine is provided. The outlet guide vane structure includes a non-uniform plurality of outlet guide vanes utilized in a bypass duct and between a radially inward wall and a radially outward wall. The non-uniform plurality of outlet guide vanes have varying chord lengths at the base of the outlet guide vanes along the radially inward wall. The non-uniform plurality of outlet guide vanes may include structural outlet guide vanes, non-structural outlet guide vanes, and cut-out outlet guide vanes. The non-uniform plurality of outlet guide vanes include at least one outlet guide vane integrated with a pylon and/or a bifurcation of the turbofan engine. The cut-out outlet guide vane may be integrated with the pylon and/or bifurcation. The cut-out may include a leading edge and a trailing edge disposed in front of a leading edge of the pylon.

    ACOUSTIC PANEL AND METHOD FOR MAKING THE SAME
    12.
    发明申请
    ACOUSTIC PANEL AND METHOD FOR MAKING THE SAME 审中-公开

    公开(公告)号：US20200049075A1

    公开(公告)日：2020-02-13

    申请号：US16059338

    申请日：2018-08-09

    Applicant: General Electric Company

    Inventor： Egbert Geertsema

    IPC: F02C7/24 ,  B33Y80/00 ,  F02K1/82 ,  G10K11/172

    Abstract: An acoustic panel comprises a face sheet comprising a plurality of openings; a back sheet opposite to the face sheet; and an intermediate layer comprising a plurality of cells each comprising a cavity and a plurality of walls extending between the face sheet and the back sheet and surrounding the cavity. The plurality of walls can comprise at least one and possibly a plurality of slots for drainage. A method for making the acoustic panel is also described.

    Acoustic liner for gas turbine engine components
    13.
    发明授权
    Acoustic liner for gas turbine engine components 有权

    公开(公告)号：US10174675B2

    公开(公告)日：2019-01-08

    申请号：US14984767

    申请日：2015-12-30

    Applicant: General Electric Company ,  MRA SYSTEMS, INC.

    Inventor： Michael Moses Martinez ,  Rudramuni Kariveerappa Majjigi ,  Steven Thomas Davies ,  Egbert Geertsema

    IPC: F02C7/045 ,  B64D33/02 ,  F04D29/66 ,  G10K11/168 ,  G10K11/172

    Abstract: A single degree of freedom (SDOF) acoustic liner includes a porous face sheet, a substantially imperforate back sheet generally parallel to and opposing said porous face sheet and defining a thickness therebetween, and an acoustic core layer of contiguous adjacent resonant cavities disposed between the porous face sheet and the imperforate back sheet. The acoustic core layer includes a first resonant cell having a first internal volume therein and a second resonant cell having a second internal volume therein different than the first internal volume. A cell partition wall extends between the porous face sheet and the imperforate back sheet, and separates and seals the first resonant cell from the second resonant cell. In a thickness direction, and perpendicular to a plane generally parallel with the porous face sheet and the substantially imperforate back sheet, the first internal volume overlaps the second internal volume over the cell partition wall.

    ACOUSTIC TURBOFAN AIRFOIL APPARATUS
    18.
    发明申请
    ACOUSTIC TURBOFAN AIRFOIL APPARATUS 有权

    公开(公告)号：US20230059995A1

    公开(公告)日：2023-02-23

    申请号：US17406930

    申请日：2021-08-19

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Egbert Geertsema ,  Nicholas J. Kray ,  Brandon W. Miller

    IPC: F01D9/02 ,  F01D25/04

    Abstract: Acoustic turbofan airfoil apparatus are disclosed. An example apparatus includes a platform of a turbofan engine, the platform including perforations to receive acoustic waves, acoustic chambers protruding from a first side of the platform, the acoustic chambers aligned with the perforations in a radial direction defined by the turbofan engine, the acoustic chambers to attenuate the acoustic waves, and an airfoil protruding from a second side of the platform opposite the first side of the platform.

    ACOUSTIC PANEL AND METHOD FOR MAKING THE SAME
    19.
    发明申请
    ACOUSTIC PANEL AND METHOD FOR MAKING THE SAME 审中-公开

    公开(公告)号：US20200049074A1

    公开(公告)日：2020-02-13

    申请号：US16059326

    申请日：2018-08-09

    Applicant: General Electric Company

    Inventor： Egbert Geertsema ,  Kirk Alan Rogers

    IPC: F02C7/24 ,  B33Y80/00 ,  F02K1/82 ,  G10K11/172

    Abstract: An acoustic panel comprises: a face sheet comprising a plurality of openings; a back sheet opposite to the face sheet; and an intermediate layer comprising a plurality of cells each comprising a cavity and a plurality of walls extending between the face sheet and the back sheet and surrounding the cavity, the plurality of walls comprising a plurality of drainage slots and a plurality of covers covering the plurality of drainage slots and openable for drainage. A method for making the acoustic panel is also described.

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