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    Radiator configuration for a flying wind turbine that passively controls airflow
    23.
    发明授权
    Radiator configuration for a flying wind turbine that passively controls airflow 有权

    公开(公告)号：US09745962B2

    公开(公告)日：2017-08-29

    申请号：US14202979

    申请日：2014-03-10

    Applicant: X Development LLC

    Inventor： Damon Vander Lind

    IPC: F03D80/60 ,  F03D80/00

    CPC classification number: F03D80/60 ,  F03D9/30 ,  F03D13/20 ,  F03D80/00 ,  F05B2240/921 ,  F05B2260/64 ,  Y02E10/72

    Abstract: Disclosed herein are systems for controlling the amount of airflow across a radiator within an aerial vehicle radiator duct. A rigid member of a moveable flow restrictor is rotatable between an open position and a closed position. While subject to a g-force less than a threshold value in a triggering direction, the rigid member is oriented in the open position and, while subject to a g-force greater than the threshold value in the triggering direction, the rigid member is oriented in the closed position. The amount of the airflow across the radiator while the rigid member is in the open position is different than the amount of the airflow across the radiator while the rigid member is in the closed position.

    Tension member fatigue tester using transverse resonance
    26.
    发明授权
    Tension member fatigue tester using transverse resonance 有权
    张力构件疲劳试验机采用横向共振

    公开(公告)号：US09557255B2

    公开(公告)日：2017-01-31

    申请号：US15159111

    申请日：2016-05-19

    Applicant: X Development LLC

    Inventor： Elias Wolfgang Patten ,  Damon Vander Lind

    IPC: G01N3/02 ,  G01N3/32 ,  G01N3/04 ,  G01N3/10 ,  G01N3/08

    CPC classification number: G01N3/02 ,  G01N3/04 ,  G01N3/08 ,  G01N3/10 ,  G01N3/32 ,  G01N2203/0005 ,  G01N2203/0016 ,  G01N2203/0017 ,  G01N2203/0254

    Abstract: A system includes: a tension member having a first end and a second end, where the first end of the tension member is connected to a first loading member and the second end of the tension member is connected to a second loading member; a first actuator configured to translate the first loading member, such that a tensile load is applied to the tension member along a first direction; a second actuator configured to translate the second loading member in two or more second directions that are substantially transverse to the first direction; and a control system that is configured to control the second actuator, such that the second loading member oscillates between the two or more second directions, where the oscillation of the second loading member causes the tension member to vibrate at a frequency.

    Abstract translation: 系统包括：张紧构件，其具有第一端和第二端，其中所述张紧构件的第一端连接到第一加载构件，并且所述张紧构件的第二端连接到第二加载构件; 第一致动器，其构造成平移第一加载构件，使得拉伸载荷沿着第一方向施加到张紧构件; 第二致动器，其构造成在基本上横向于所述第一方向的两个或更多个第二方向上平移所述第二加载构件; 以及控制系统，其被配置为控制所述第二致动器，使得所述第二加载构件在所述两个或更多个第二方向之间振荡，其中所述第二加载构件的振荡使所述张紧构件以频率振动。

    Systems and Methods for Controlling Rotation and Twist of a Tether
    27.
    发明申请
    Systems and Methods for Controlling Rotation and Twist of a Tether 审中-公开

    公开(公告)号：US20180127113A1

    公开(公告)日：2018-05-10

    申请号：US15863973

    申请日：2018-01-07

    Applicant: X DEVELOPMENT LLC

    Inventor： Elias Wolfgang Patten ,  Damon Vander Lind ,  Bryan Christopher GilroySmith ,  Brian Hachtmann

    IPC: B64F3/02 ,  F03D7/02

    CPC classification number: B64F3/02 ,  F03D7/02 ,  F05B2240/921 ,  Y02E10/723

    Abstract: A system may include a tether, a slip ring, a tether gimbal assembly, a drive mechanism, a control system. The tether may include a distal tether end coupled to an aerial vehicle, a proximate tether end, and at least one insulated electrical conductor coupled to the aerial vehicle. The slip ring may include a fixed portion and a rotatable portion, where the rotatable portion is coupled to the tether. The tether gimbal assembly may be rotatable about at least one axis and is coupled to the fixed portion of the slip ring. The drive mechanism may be coupled to the slip ring and configured to rotate the rotatable portion of the slip ring. And the control system may be configured to operate the drive mechanism to control twist in the tether.

    Dual-pitch support for a propeller
    28.
    发明授权
    Dual-pitch support for a propeller 有权

    公开(公告)号：US09878775B2

    公开(公告)日：2018-01-30

    申请号：US14143414

    申请日：2013-12-30

    Applicant: X Development LLC

    Inventor： Damon Vander Lind ,  Geoff Dolan

    IPC: B64C11/34 ,  F03D7/02 ,  F03D5/00

    CPC classification number: B64C11/343 ,  F03D5/00 ,  F03D7/0224 ,  F05B2240/917 ,  F05B2240/921 ,  Y02E10/70 ,  Y02E10/723 ,  Y02E10/728

    Abstract: Apparatus are disclosed that are configured to passively rotate a propeller blade from a first pitch angle to a second pitch angle. An example apparatus involves: (a) a rotor hub, (b) at least one dual-pitch support coupled to the rotor hub, wherein the dual-pitch support has a first surface, a second surface and a cavity defined there between, and (c) at least one propeller blade rotatably coupled to the rotor hub such that a blade root is disposed within the dual-pitch support's cavity, where the blade root's front face is positioned against the dual-pitch support's first surface in a first position and the blade root's back face is positioned against the dual-pitch support's second surface in a second position, and the propeller blade is oriented at a first pitch angle in the first position and is oriented at a second pitch angle in the second position.

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