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    POROSITY GRADIENT PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES
    1.
    发明申请
    POROSITY GRADIENT PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES 有权

    公开(公告)号：US20250026104A1

    公开(公告)日：2025-01-23

    申请号：US18357026

    申请日：2023-07-21

    Applicant: Rohr, Inc.

    Inventor： BRYAN THAI ,  VIJAY V. PUJAR ,  KATHERINE E. WAUGH ,  CHRISTOPHER C. KOROLY

    IPC: B32B5/26 ,  B32B5/02 ,  B32B37/06 ,  B32B37/20

    Abstract: A porosity gradient fibrous preform includes a first fabric-resin layer having a first plurality of fibers and a first resin and a second fabric-resin layer having a second plurality of fibers and a second resin. The second fabric-resin layer is positioned further outward from the center of the porosity gradient fibrous preform than the first fabric-resin layer. In response to the porosity gradient fibrous preform being heated to a curing temperature, the first resin and/or the second resin is configured to separate into a fusible resin and a plurality of fugitive pore formers. Accordingly, a volume of the fugitive pore formers sequentially increases from a center of the porosity gradient fibrous preform toward an outer surface of the porosity gradient fibrous preform.

    COMMINGLED FIBER PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES
    3.
    发明申请
    COMMINGLED FIBER PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES 有权

    公开(公告)号：US20240391211A1

    公开(公告)日：2024-11-28

    申请号：US18321699

    申请日：2023-05-22

    Applicant: ROHR, INC.

    Inventor： KATHERINE E. WAUGH ,  VIJAY V. PUJAR ,  CHRISTOPHER C. KOROLY ,  BRYAN THAI

    IPC: B32B7/08 ,  B32B5/26 ,  B32B7/03 ,  B32B37/06 ,  B32B38/18

    Abstract: A commingled fiber preform is provided. The commingled fiber preform includes at least one first fabric layer and a second fabric layer. The second fabric layer is positioned on top of the at least one first fabric layer. The second fabric layer is joined to the at least one first fabric layer via through thickness reinforcement (TTR) using a commingled thread. A transport depth of the TTR penetrates completely through a thickness of the second fabric layer and an entirety of the at least one first fabric layer. The commingled thread comprises carbon fibers commingled with fugitive fibers. The fugitive fibers are pyrolyzed from the commingled fiber preform to create a path through the thickness for infiltration of fluids.

    COMMINGLED FIBER PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES
    6.
    发明申请
    COMMINGLED FIBER PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES 有权

    公开(公告)号：US20240391212A1

    公开(公告)日：2024-11-28

    申请号：US18321716

    申请日：2023-05-22

    Applicant: ROHR, INC.

    Inventor： CHRISTOPHER C. KOROLY ,  KATHERINE E. WAUGH ,  BRYAN THAI ,  VIJAY V. PUJAR

    IPC: B32B7/09 ,  B32B5/26 ,  B32B7/03 ,  B32B37/06 ,  B32B38/18

    Abstract: A commingled fiber preform is provided. The commingled fiber preform includes a plurality of first fabric layers and a second fabric layer. The second fabric layer is positioned on top of the plurality of first fabric layers. The second fabric layer is joined to the plurality of first fabric layers via through thickness reinforcement (TTR) using a commingled thread. A transport depth of the TTR penetrates completely through a thickness of the second fabric layer and partially through a thickness of the plurality of first fabric layers. The commingled thread comprises carbon fibers commingled with fugitive fibers. The fugitive fibers are pyrolyzed from the commingled fiber preform to create a path through the thickness for infiltration of fluids.

    DETECTING DAMAGE IN A COMPOSITE PANEL WITHOUT REMOVING OVERLYING INSULATION
    7.
    发明申请
    DETECTING DAMAGE IN A COMPOSITE PANEL WITHOUT REMOVING OVERLYING INSULATION 有权
    检测复合面板中的损坏，无需拆卸绝缘绝缘

    公开(公告)号：US20160313286A1

    公开(公告)日：2016-10-27

    申请号：US14553229

    申请日：2014-11-25

    Applicant: ROHR, INC.

    Inventor： SONG CHIOU ,  JARED VICTOR ,  VIJAY V. PUJAR

    IPC: G01N29/04 ,  B64D29/00 ,  G01M15/14 ,  B64D27/10

    CPC classification number: G01N29/043 ,  B64D27/10 ,  B64D29/00 ,  G01M15/14 ,  G01N2291/0231 ,  G01N2291/0289 ,  G01N2291/102 ,  G01N2291/2693

    Abstract: Systems and methods for detecting damage in composite components are disclosed. A first attachment feature and a second attachment feature may be coupled to a composite component. A transmitting device may be coupled to the first attachment feature. A receiving device may be coupled to the second attachment feature. A signal may be transmitted from the transmitting device, through the first attachment feature, through the composite component, and through the second attachment feature to the receiving device. The signal may be analyzed to detect damage in the composite component.

    Abstract translation: 公开了用于检测复合部件中的损伤的系统和方法。 第一附接特征和第二附接特征可以耦合到复合部件。 发送设备可以耦合到第一附接特征。 接收设备可以耦合到第二附接特征。 信号可以通过第一附件特征通过复合元件从发送设备发送，并通过第二附件特征传输到接收设备。 可以分析信号以检测复合部件中的损坏。

    COMMINGLED FIBER PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES
    8.
    发明申请
    COMMINGLED FIBER PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES 有权

    公开(公告)号：US20240391208A1

    公开(公告)日：2024-11-28

    申请号：US18321726

    申请日：2023-05-22

    Applicant: ROHR, INC.

    Inventor： VIJAY V. PUJAR ,  BRYAN THAI ,  KATHERINE E. WAUGH ,  CHRISTOPHER C. KOROLY

    IPC: B32B5/12 ,  B32B5/02 ,  B32B5/26 ,  B32B37/16 ,  B32B38/00

    Abstract: A preform is provided. The preform includes first fabric layers that include a first set of commingled fibers and a second set of commingled fibers. The preform includes a second fabric layer positioned between the first fabric layers. The second fabric layer includes a third set of commingled fibers and a fourth set of commingled fibers. The first set of commingled fibers includes a lower percentage of the at least one of first carbon fibers or first fusible fibers than the third set of commingled fibers, The first set of commingled fibers include a higher percentage of first fugitive fibers than the third set of commingled fibers. The first fugitive fibers and the third fugitive fibers are pyrolyzed from the first fabric layers and the second fabric layer.

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