Bootstrap accumulator containing integrated bypass valve

    公开(公告)号:US10954966B2

    公开(公告)日:2021-03-23

    申请号:US15792971

    申请日:2017-10-25

    Inventor: Kirk A. Miller

    Abstract: An apparatus includes a bootstrap accumulator having multiple fluid expansion volumes each configured to receive fluid. The bootstrap accumulator also includes a piston assembly configured to move within the fluid expansion volumes based on pressures within the fluid expansion volumes. The piston assembly includes (i) a fluid pathway that couples the fluid expansion volumes and (ii) a bypass valve configured to selectively open or block the fluid pathway. The piston assembly could also include multiple pistons and a connecting rod coupling the pistons. The fluid pathway could include a narrower path through a first portion of the connecting rod and a wider path through a second portion of the connecting rod. The bypass valve could include a ball and a spring configured to push the ball to block the narrower path through the first portion of the connecting rod.

    Method for heat transfer across rotary joint

    公开(公告)号:US10916993B2

    公开(公告)日:2021-02-09

    申请号:US16009073

    申请日:2018-06-14

    Abstract: A torque motor includes a large area rotor, a stator surrounding at least a portion of the rotor, and a small air gap separating the rotor from the stator to allow frictionless thermal coupling between the rotor and the stator. Heat from the rotor is transferred to the stator by conduction. The stator contacts an inner surface for a housing of the torque motor for conductively coupling to a cold environment air flow exterior to the torque motor housing. The air gap may have a dimension of about 0.002 to 0.003 inches. The stator may be conductively coupled to the torque motor housing by one of a thermal gap pad or high conductivity thermal gap filling compound. Heat conduction from the rotor to the stator preferably occurs without rotation of the rotor.

    Vibration isolation system
    34.
    发明授权

    公开(公告)号:US10816056B2

    公开(公告)日:2020-10-27

    申请号:US15825594

    申请日:2017-11-29

    Abstract: A vibration isolation device includes flexures and a multi-part mounting interface for coupling a frame that supports equipment to a structure. The flexures may include three pairs of flexures that allow movement in three orthogonal directions, to allow compliance and/or damp vibrations in the three directions. The flexures may surround the multi-part mounting interface, the parts of which are configured to move relative to one another. One of the parts of the mounting interfaces passes through another part of the mounting interface, such as in one or more holes in one of the interfaces. The device allows equipment mounted on the frame to be isolated from some or all of vibrations produced at the structure. In an example embodiment the vibration isolation system is used in mounting an optical sensor or device to an aircraft.

    Bypass optical switch and methods
    35.
    发明授权

    公开(公告)号:US10761307B2

    公开(公告)日:2020-09-01

    申请号:US15370766

    申请日:2016-12-06

    Inventor: Kirk A. Miller

    Abstract: An optical system (e.g., a telescope) comprising an optical assembly that reflects and refracts light rays through a single window about an optical path to a detector. A field-of-view switch assembly comprises a mount, having a pair of diverter mirrors, movably coupled to the optical assembly and being selectively movable between a non-bypass position and a bypass position. The diverter mirrors bypass a first field-of-view and translate a second field-of-view (both through the single window) when moved from the non-bypass position to the bypass position to redirect the optical path. The diverter mirrors straddle the optical path in the non-bypass position. A dynamic shutter shields the second diverter mirror and exposes the second diverter mirror when moved between non-bypass and bypass positions. A four-bar linkage mechanism rotates the mount with an on-board motor and a torsional shaft to absorb impact forces. Associated methods are provided for facilitating switching between fields-of-view.

    METHOD FOR HEAT TRANSFER ACROSS ROTARY JOINT
    36.
    发明申请

    公开(公告)号:US20190386543A1

    公开(公告)日:2019-12-19

    申请号:US16009073

    申请日:2018-06-14

    Abstract: A torque motor includes a large area rotor, a stator surrounding at least a portion of the rotor, and a small air gap separating the rotor from the stator to allow frictionless thermal coupling between the rotor and the stator. Heat from the rotor is transferred to the stator by conduction. The stator contacts an inner surface for a housing of the torque motor for conductively coupling to a cold environment air flow exterior to the torque motor housing. The air gap may have a dimension of about 0.002 to 0.003 inches. The stator may be conductively coupled to the torque motor housing by one of a thermal gap pad or high conductivity thermal gap filling compound. Heat conduction from the rotor to the stator preferably occurs without rotation of the rotor.

    AUTOMATIC STRUCTURALLY INDUCED LINE OF SIGHT JITTER COMPENSATION FOR ELECTRO-OPTICAL/INFRARED TURRET SYSTEM

    公开(公告)号:US20180316862A1

    公开(公告)日:2018-11-01

    申请号:US15499120

    申请日:2017-04-27

    Abstract: A light sensor system including a reference light source that moves in unison with a primary mirror and/or an inertial measurement device, and/or the reference light source is directed toward an obscured region of the light sensor system. The reference light source may allow for improved jitter compensation based on feedback of the reference light. The feedback may be representative of the elastic deformation of the optics and telescope optical axis. The improved jitter compensation may allow for the light sensor system (e.g., the housing and/or mirrors) to be built with less stiff materials, which can reduce the cost of manufacturing the present light sensor system compared to previously known optical sensor systems. In cases of high vibration levels which would otherwise degrade the resulting image quality after material stiffness property selections have been exhausted, the light sensor system may provide jitter compensation to improve video or still image quality.

    MOVING CONFORMAL WINDOW FOR LARGE APERTURE OPTICS ON AIRCRAFT MOUNTED PODS
    39.
    发明申请
    MOVING CONFORMAL WINDOW FOR LARGE APERTURE OPTICS ON AIRCRAFT MOUNTED PODS 有权
    移动适合窗口的大型光孔机

    公开(公告)号:US20160068248A1

    公开(公告)日:2016-03-10

    申请号:US14482319

    申请日:2014-09-10

    Inventor: Kirk A. Miller

    CPC classification number: B64C1/14 G01D11/26 G03B15/006

    Abstract: A single monotlithic moving window may follow the free aperture of an optical sensor contained in a housing over a reasonable field of regard by translating the window with respect to the sensor and/or a pod cover. Because the window angle of attack is unvarying, near field turbulence is minimized over the envelope of operation.

    Abstract translation: 通过相对于传感器和/或荚盖翻转窗口,单个单体移动窗可以通过在合理的视角考虑包含在壳体中的光学传感器的自由孔。 因为窗口迎角是不变的,所以近场湍流在操作的包络上被最小化。

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