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    Tilrotor aircraft having rotary and non rotary flight modes
    1.
    发明授权
    Tilrotor aircraft having rotary and non rotary flight modes 有权

    公开(公告)号：US10526068B2

    公开(公告)日：2020-01-07

    申请号：US15428687

    申请日：2017-02-09

    Applicant: Bell Textron Inc.

    Inventor： Troy Cyril Schank ,  Carlos Alexander Fenny ,  Andrew Maresh ,  Chyau-Song Tzeng

    IPC: B64C27/54 ,  B64C11/28 ,  B64C29/00 ,  B64C27/30 ,  B64D27/20

    Abstract: A mechanism for transitioning a tiltrotor aircraft between rotary and non rotary flight modes. The mechanism includes a gimbal lock positioned about a mast that is operable to selectively enable and disable a gimballing degree of freedom of a rotor assembly relative to the mast. A blade stop assembly, positioned about the mast, includes a plurality of arms having a radially contracted orientation and a radially extended orientation. A blade lock assembly is operably associated with each rotor blade assembly. Each blade lock assembly is operable to selectively enable and disable a folding degree of freedom and a pitching degree of freedom of the respective rotor blade assembly. A swash plate is operable to change the pitch of the rotor blade assemblies in the rotary flight mode and fold the rotor blade assemblies in the non rotary flight mode.

    Control systems and methods for rotating systems
    5.
    发明授权
    Control systems and methods for rotating systems 有权

    公开(公告)号：US11427314B2

    公开(公告)日：2022-08-30

    申请号：US15980452

    申请日：2018-05-15

    Applicant: Bell Textron Inc.

    Inventor： Kynn Jerald Schulte ,  Troy Cyril Schank

    IPC: B64C27/57 ,  B64C29/00 ,  B64D45/00 ,  B64C11/28

    Abstract: In one embodiment, a local control system for a rotor assembly of an apparatus includes a first actuator disposed in the rotor assembly and configured to control motion of a first controllable element in the rotor assembly. The rotor assembly is mounted to the apparatus and is rotated responsive to torque and rotational energy provided thereto. The local control system also includes a first sensor disposed in the rotor assembly and configured to provide position feedback in relation to the first controllable element. The local control system also includes a first local control computer disposed in the rotor assembly and communicably coupled to a first central control computer disposed in the apparatus external to the rotor assembly, where the first local control computer is configured to transmit a control signal to the first actuator and receive a feedback signal from the first sensor.

    Stowed blade pneumatic clamp
    6.
    发明授权
    Stowed blade pneumatic clamp 有权

    公开(公告)号：US11279464B2

    公开(公告)日：2022-03-22

    申请号：US16574459

    申请日：2019-09-18

    Applicant: Bell Textron Inc.

    Inventor： Christopher Edward Foskey ,  Troy Cyril Schank

    IPC: B64C11/28 ,  B64C29/00

    Abstract: An aircraft includes a pylon rotatable relative to a wing, a proprotor assembly carried by the pylon, the proprotor assembly have a proprotor blade that is foldable to a stowed position extending substantially parallel to the pylon, and a fluidic clamp positioned with the pylon and configured to grip the proprotor blade when in the stowed position, the fluidic clamp including a first inflatable bladder positioned on a first side of an opening for receiving a portion of a proprotor blade and a pressurized fluid source in fluid connection with the first inflatable bladder.

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