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    DUCTS COMPRISING EXOSKELETON AND SOUND-ABSORBING STRUCTURES AND VEHICLES USING SUCH DUCTS
    14.
    发明申请
    DUCTS COMPRISING EXOSKELETON AND SOUND-ABSORBING STRUCTURES AND VEHICLES USING SUCH DUCTS 有权

    公开(公告)号：US20230010222A1

    公开(公告)日：2023-01-12

    申请号：US17373453

    申请日：2021-07-12

    Applicant: The Boeing Company

    Inventor： Bryce A. Vandyke ,  Douglas D. Maben ,  Dale Hastings ,  Mark M. Gmerek ,  Xin Han

    IPC: F16L55/033 ,  F16L55/035 ,  B64D13/06

    Abstract: Described herein are noise attenuating ducts and vehicles using these ducts for environmental control systems. A duct comprises an exoskeleton structure and a sound-absorbing structure, disposed within and conforming to the exoskeleton structure. The exoskeleton structure provides external mechanical support to the sound-absorbing structure thereby helping to maintain the tubular shape of the sound-absorbing structure. This external support does not interfere with the airflow inside the sound-absorbing structure. Furthermore, the external positioning of the exoskeleton structure allows the integration of various support mounting features for the installation of the duct in a vehicle. In some examples, the exoskeleton structure comprises a plurality of enclosed openings to reduce the weight of the exoskeleton structure and provide additional flexibility. Furthermore, additive manufacturing of the exoskeleton structure allows achieving a monolithic structure with various features and characteristics described above.

    Fluid flow restrictor device
    15.
    发明授权
    Fluid flow restrictor device 有权

    公开(公告)号：US11112808B2

    公开(公告)日：2021-09-07

    申请号：US16456898

    申请日：2019-06-28

    Applicant: The Boeing Company

    Inventor： Tuan Q. Vu ,  Chao-Hsin Lin ,  Taylor Goodwin ,  Douglas D. Maben ,  Gary A. Pearson

    IPC: F16L55/027 ,  G05D7/01 ,  F16L55/07

    Abstract: A fluid flow restrictor device for controlling fluid flow at a connection between ducts may include a restrictor device body that is partially or fully inserted into and disposed within one of the ducts and an outboard restrictor device flange extending radially outward at an outboard end of the restrictor device body and having an outboard flange outer diameter that is greater than an inner diameter of the ducts so that the restrictor device body or the outboard restrictor device flange is engaged by an open end surface of the duct to prevent full insertion of the fluid flow restrictor device into the duct. A body inner surface defines a restrictor opening through the restrictor device body that can be varied to achieve desired fluid flow characteristics at the connection.

    Cap having a low cost construction and a self retaining feature
    17.
    发明授权
    Cap having a low cost construction and a self retaining feature 有权

    公开(公告)号：US11378216B2

    公开(公告)日：2022-07-05

    申请号：US16599419

    申请日：2019-10-11

    Applicant: The Boeing Company

    Inventor： Bryce A. Vandyke ,  Douglas D. Maben ,  Luis J. Sanchez ,  Timothy Chiu

    IPC: F16L57/00 ,  F16L55/115 ,  B65D59/06

    Abstract: A cap for closing an open end of a duct tube has a cylindrical side wall having a length between a closed end and an open end of the side wall. An end wall extends across the closed end of the side wall. A conical section of the side wall extends outwardly from the open end of the side wall and has an interior surface configured to guide an end of a duct tube into a hollow interior volume of the side wall. A groove in an interior surface of the side wall is configured to receive a bead around an end of a duct tube inserted through the conical section and into the hollow interior of the side wall. A plurality of pull tabs extend outwardly from the conical section and are configured to be manually pulled, pulling the cap over the end of the duct tube.

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