Force equalization with non-responsive sensor detection

    公开(公告)号:US11628928B2

    公开(公告)日:2023-04-18

    申请号:US17191075

    申请日:2021-03-03

    申请人: Bell Textron Inc.

    IPC分类号: B64C13/00 B64C13/50

    摘要: In an embodiment, a method of monitoring force equalization (FEQ) sensors on a vehicle utilizing redundant actuation systems for one or more control surfaces includes determining, via a force sensor, a first measured force applied by a first actuation system in relation to a control surface, where the control surface is redundantly serviced by a plurality of actuation systems that include the first actuation system. The method also includes updating a measured-force time series for the first actuation system with the first measured force. The method also includes determining variation in at least a portion of the measured-force time series responsive to the updating. The method also includes identifying a first static condition in the measured-force time series in response to a determination that the variation in the measured-force time series is no greater than a minimum amount of variation.

    Movable cover for a proprotor nacelle

    公开(公告)号:US11628923B2

    公开(公告)日:2023-04-18

    申请号:US16949868

    申请日:2020-11-18

    申请人: Bell Textron Inc.

    IPC分类号: B64C7/02 B64C29/00 B64D7/00

    摘要: An aircraft, including a fixed nacelle disposed on a wing of the aircraft, the fixed nacelle including a nacelle opening; a proprotor pylon disposed on the wing and rotatable relative to the fixed nacelle between a substantially horizontal position and a non-horizontal position, wherein rotation of the proprotor pylon to a non-horizontal position exposes the nacelle opening; and a movable cover disposed on at least one of the wing and fixed nacelle, said movable cover including a plurality of cover members that are movable between a closed position where at least a portion of the cover members collectively form a protective cover in front of the nacelle opening when the proprotor pylon is positioned in the non-horizontal position and a stowed position where at least a portion of the plurality of cover members are stowed. In other aspects, there is provide a method of covering a nacelle opening.

    Concentric probe
    7.
    发明授权

    公开(公告)号:US11624604B2

    公开(公告)日:2023-04-11

    申请号:US16811088

    申请日:2020-03-06

    申请人: Bell Textron Inc.

    IPC分类号: G01B5/20 F01D21/00

    摘要: An example of a concentric probe includes an outer shroud having a bore that extends through the outer shroud, an inner shroud located within the outer shroud and having a bore that extends through the inner shroud, the inner shroud joined to the outer shroud via brazing, an annulus defined by a space between the inner shroud and a wall of the bore of the outer shroud, a plenum defined by a space between the inner shroud and the wall of the bore of the outer shroud, the plenum being in fluid communication with the annulus, and a transducer disposed within inner shroud.

    Chord Lock Assembly for a Tiltrotor Aircraft

    公开(公告)号:US20230067093A1

    公开(公告)日:2023-03-02

    申请号:US17410442

    申请日:2021-08-24

    申请人: Bell Textron Inc.

    IPC分类号: B64C27/32 B64C27/37

    摘要: Disclosed is a blade lock assembly, which may include a drag brace coupled to a fold crank assembly and to a rotary wing blade and may further include an actuator assembly configured to be coupled to a rotary wing cuff. The actuator assembly may include an actuator pin housing, an actuation pin at least partially sheathed by the actuator pin housing, and an actuator configured to extend and retract the actuation pin away from and toward the actuator pin housing.

    Adjustable ducted rotor blade tip extension

    公开(公告)号:US11565799B2

    公开(公告)日:2023-01-31

    申请号:US16900543

    申请日:2020-06-12

    申请人: Bell Textron Inc.

    IPC分类号: B64C27/46 F01D5/14

    摘要: A rotor system includes a rotor duct; at least one rotor blade that includes an outboard end; a tip extension mechanism affixed at the outboard end of the at least one rotor blade, the tip extension mechanism including at least one shim, the at least one rotor blade with the tip extension mechanism affixed thereto including an extended rotor blade; and a blade tip affixed to an outboard end of the extended rotor blade, wherein the blade tip is affixed to the extended rotor blade via at least one removable fastener.

    Forming Battery Electrodes and Associated Battery

    公开(公告)号:US20230021931A1

    公开(公告)日:2023-01-26

    申请号:US17385506

    申请日:2021-07-26

    申请人: Bell Textron Inc.

    IPC分类号: H01M4/04 H01M4/583 H01M4/48

    摘要: In certain embodiments, a method includes forming a battery electrode on a substrate. Forming the battery electrode on the substrate includes depositing a first electrode active material layer on a first portion of a surface of the substrate and depositing, to form a current collector, a conductive material using a thin film deposition process on a surface of the first electrode active material layer. The conductive material is deposited over an edge of the first electrode active material layer and onto a second portion of the surface of the substrate, the second portion of the substrate being adjacent to the first portion of the substrate. The method includes removing the battery electrode from the substrate, the battery electrode including the first electrode active material layer and the current collector.