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    High flapping yoke hub assembly using a cylindrical elastomeric attachment to avoid holes
    1.
    发明授权
    High flapping yoke hub assembly using a cylindrical elastomeric attachment to avoid holes 有权

    公开(公告)号：US10336445B2

    公开(公告)日：2019-07-02

    申请号：US13797334

    申请日：2013-03-12

    Applicant: Bell Helicopter Textron Inc.

    Inventor： Andrew Maresh ,  Frank Bradley Stamps ,  Andrew Haldeman

    IPC: B64C27/33 ,  B64C27/48 ,  B64C27/35 ,  B64C11/02

    Abstract: An apparatus comprising a rotor yoke comprising two longitudinal side portions interconnected by two outboard portions, wherein a center portion of each longitudinal side portion comprises a build-up of material that is configured to accommodate a yoke hub clamp. Included is an apparatus comprising a rotor yoke comprising two longitudinal side portions interconnected by two outboard portions, wherein no apertures pass through the two longitudinal side portions and the two outboard portions. Also included is a method of coupling aircraft blades comprising providing a rotor yoke comprising two longitudinal side portions interconnected by two outboard portions, wherein no apertures pass through the two longitudinal side portions and the two outboard portions.

    Composite rotor system using two race track style cantilevered yokes
    2.
    发明授权
    Composite rotor system using two race track style cantilevered yokes 有权
    复合转子系统采用两种跑道式悬臂式轭铁

    公开(公告)号：US09505490B2

    公开(公告)日：2016-11-29

    申请号：US13801733

    申请日：2013-03-13

    Applicant: Bell Helicopter Textron Inc.

    Inventor： Andrew Maresh ,  Frank Bradley Stamps ,  Patrick Ryan Tisdale ,  Robert Wardlaw ,  Andrew Haldeman ,  Drew Sutton

    IPC: B64C27/35 ,  B64C27/48 ,  B64C27/33

    CPC classification number: B64C27/33 ,  B64C11/02 ,  B64C11/12 ,  B64C27/35 ,  B64C27/48

    Abstract: A hub system comprises at least one yoke, at least one shear bearing, and at least one mast adapter. The at least one mast adapter is configured to support the at least one yoke and the at least one shear bearing, and the at least one yoke has a flapping hinge that is non-coincident with a flapping hinge of the at least one shear bearing. Another hub system comprises a stacked yoke and a mast adapter. The mast adapter is configured to transfer rotation from a rotor mast to the hub system to rotate the hub system about a central axis of rotation. The mast adapter is further configured to support the stacked yoke such that each yoke in the stacked yoke is configured to accommodate at least some amount of rotation about an axis that is perpendicular to or about perpendicular to the central axis of rotation.

    Abstract translation: 毂系统包括至少一个轭，至少一个剪切轴承和至少一个桅杆适配器。 所述至少一个桅杆适配器构造成支撑所述至少一个轭和所述至少一个剪切轴承，并且所述至少一个轭具有与所述至少一个剪切轴承的扑动铰链不重合的扑动铰链。 另一个集线器系统包括堆叠的轭和桅杆适配器。 桅杆适配器被配置为将旋转从转子桅杆传递到轮毂系统，以围绕中心旋转轴线旋转轮毂系统。 桅杆适配器还被配置为支撑堆叠的轭架，使得堆叠的轭架中的每个轭架构造成适应围绕垂直于或大致垂直于中心旋转轴线的轴线的至少一定量的旋转。

    Composite Rotor System Using Two Race Track Style Cantilevered Yokes
    5.
    发明申请
    Composite Rotor System Using Two Race Track Style Cantilevered Yokes 审中-公开
    复合转子系统使用两个赛道式悬臂式轭

    公开(公告)号：US20170073067A1

    公开(公告)日：2017-03-16

    申请号：US15362424

    申请日：2016-11-28

    Applicant: Bell Helicopter Textron Inc.

    Inventor： Andrew Maresh ,  Frank Bradley Stamps ,  Patrick Ryan Tisdale ,  Robert Patrick Wardlaw ,  Andrew Haldeman ,  Drew Alan Sutton

    IPC: B64C27/33 ,  B64C27/35

    CPC classification number: B64C27/33 ,  B64C11/02 ,  B64C11/12 ,  B64C27/35 ,  B64C27/48

    Abstract: A hub system comprises at least one yoke, at least one shear bearing, and at least one mast adapter. The at least one mast adapter is configured to support the at least one yoke and the at least one shear bearing, and the at least one yoke has a flapping hinge that is non-coincident with a flapping hinge of the at least one shear bearing. Another hub system comprises a stacked yoke and a mast adapter. The mast adapter is configured to transfer rotation from a rotor mast to the hub system to rotate the hub system about a central axis of rotation. The mast adapter is further configured to support the stacked yoke such that each yoke in the stacked yoke is configured to accommodate at least some amount of rotation about an axis that is perpendicular to or about perpendicular to the central axis of rotation.

    Abstract translation: 毂系统包括至少一个轭，至少一个剪切轴承和至少一个桅杆适配器。 所述至少一个桅杆适配器构造成支撑所述至少一个轭和所述至少一个剪切轴承，并且所述至少一个轭具有与所述至少一个剪切轴承的扑动铰链不重合的扑动铰链。 另一个集线器系统包括堆叠的轭和桅杆适配器。 桅杆适配器被配置为将旋转从转子桅杆传递到轮毂系统，以围绕中心旋转轴线旋转轮毂系统。 桅杆适配器还被配置为支撑堆叠的轭架，使得堆叠的轭架中的每个轭架构造成适应围绕垂直于或大致垂直于中心旋转轴线的轴线的至少一定量的旋转。

    Tiltrotor Aircraft having Rotary and Non Rotary Flight Modes
    9.
    发明申请
    Tiltrotor Aircraft having Rotary and Non Rotary Flight Modes 审中-公开

    公开(公告)号：US20170144746A1

    公开(公告)日：2017-05-25

    申请号：US15428687

    申请日：2017-02-09

    Applicant: Bell Helicopter Textron Inc.

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

    IPC: B64C11/28 ,  B64C27/30 ,  B64C11/32 ,  B64C29/00

    CPC classification number: B64C11/28 ,  B64C27/30 ,  B64C29/0033 ,  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.

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