Satellite testbed for evaluating cryogenic-liquid behavior in microgravity
    1.
    发明授权
    Satellite testbed for evaluating cryogenic-liquid behavior in microgravity 有权
    用于评估微重力中低温液体行为的卫星试验台

    公开(公告)号:US09567110B1

    公开(公告)日:2017-02-14

    申请号:US14306987

    申请日:2014-06-17

    申请人: Sierra Lobo, Inc.

    IPC分类号: B64G1/10

    CPC分类号: B64G1/105

    摘要: Provided is a testbed for conducting an experiment on a substance in a cryogenic liquid state in a microgravity environment. Such a testbed includes a frame with rectangular nominal dimensions, and a source section supported by the frame for supplying the substance to be evaluated in the cryogenic liquid form. An experiment supported by the frame includes an experiment vessel in fluid communication with the storage tank to receive and condense the substance into the cryogenic liquid state. A sensor senses a property of the cryogenic liquid in the experiment vessel as part of the experiment, and a bus section includes a controller configured to control delivery of the substance to the experiment vessel, and receives property data indicative of the property sensed by the sensor for subsequent evaluation on Earth.

    摘要翻译: 提供了一种用于在微重力环境中对低温液态物质进行实验的试验台。 这种试验台包括具有矩形标称尺寸的框架,以及由框架支撑的源部分,用于以低温液体形式供应待评估物质。 由框架支持的实验包括与储罐流体连通的实验容器,以将物质接收并冷凝成低温液体状态。 传感器感测实验容器中的低温液体的性质,作为实验的一部分,并且总线部分包括控制器,其被配置为控制物质向实验容器的传送,并且接收表示由传感器感测到的特性的属性数据 以便随后对地球进行评估。

    Cryogenic feed-through test rig
    2.
    发明授权
    Cryogenic feed-through test rig 有权
    低温直通式试验台

    公开(公告)号:US07836754B1

    公开(公告)日:2010-11-23

    申请号:US12048520

    申请日:2008-03-14

    IPC分类号: G01M3/04

    CPC分类号: G01M3/229 G01M3/22

    摘要: A test rig capable to test feed-throughs for cryogenic service is provided. The test rig permits testing feed-throughs under the actual pressure and cryogenic temperature conditions of the anticipated in-service application, without the risk of releasing volatile liquid cryogens in the event of leakage or catastrophic failure of the feed-through. Methods of using the test rig are also disclosed.

    摘要翻译: 提供了能够测试低温服务的通过的测试台。 测试台允许在预期的在役应用的实际压力和低温条件下进行测试,而不会在发生泄漏或引起灾难性故障的情况下释放挥发性液体冷冻剂的风险。 还公开了使用试验台的方法。

    Satellite testbed for evaluating cryogenic-liquid behavior in microgravity

    公开(公告)号:US09651569B1

    公开(公告)日:2017-05-16

    申请号:US14307005

    申请日:2014-06-17

    申请人: Sierra Lobo, Inc.

    摘要: Provided is a testbed for conducting an experiment on a substance in a cryogenic liquid state in a microgravity environment. The testbed includes a frame with rectangular nominal dimensions, and a source section including a supply of the substance to be evaluated in the cryogenic liquid state. An experiment section includes an experiment vessel in fluid communication with the storage section to receive the substance from the storage section and condense the substance into the cryogenic liquid state. A sensor is adapted to sense a property of the substance in the cryogenic liquid state in the experiment vessel as part of the experiment. A bus section includes a controller configured to control delivery of the substance from the storage section to the experiment vessel, and receive property data indicative of the property sensed by the sensor for subsequent evaluation on Earth.

    NONDESTRUCTIVE CAPTURE OF HYPERVELOCITY PROJECTILES
    4.
    发明申请
    NONDESTRUCTIVE CAPTURE OF HYPERVELOCITY PROJECTILES 有权
    高性能项目的非结构性捕获

    公开(公告)号:US20090302982A1

    公开(公告)日:2009-12-10

    申请号:US12481147

    申请日:2009-06-09

    IPC分类号: H01F6/06

    摘要: Apparatus for inductive braking of a projectile are disclosed. Embodiments include a receiver that has a unidirectional conductor having a closed conductive pathway that encircles a passageway for a moving projectile. The unidirectional conductor permits current to flow through it in substantially only one direction around the passageway. As the projectile and its associated magnetic field move past the unidirectional conductor, the moving magnetic field induces a current flow through the closed conductive pathway, which in turn generates a magnetic field behind the projectile having the same polarity as the projectile's field. The two fields attract one another, which both exerts a braking force on the projectile and tends to align the two fields. Alignment of these fields centers the projectile away from the passageway wall. Because the unidirectional conductor permits current to flow in substantially only the direction that produces a field having the same polarity as the moving field, the opposite-polarity repulsive magnetic field that would otherwise be generated ahead of the projectile, which would otherwise deflect the projectile from its path, is suppressed. Methods of inductive braking are also disclosed.

    摘要翻译: 公开了用于射弹感应制动的装置。 实施例包括具有单向导体的接收器,其具有围绕用于移动的射弹的通道的封闭的导电路径。 单向导体允许电流沿着通道大致仅沿一个方向流过它。 随着射弹及其相关的磁场移动通过单向导体,移动磁场引起电流流过闭合的导电路径,这又导致与射弹场相同极性的射弹背后的磁场。 这两个领域相互吸引,两者都对射弹施加制动力,并且倾向于使两个领域相一致。 这些区域的对准使射弹远离通道墙。 因为单向导体允许电流基本上仅在产生具有与运动场相同极性的场的方向上流动,否则将在弹丸之前产生的相反极性的排斥磁场,否则将使抛射体偏离 其路径被抑制。 还公开了感应制动的方法。

    No-vent liquid hydrogen storage and delivery system
    5.
    发明授权
    No-vent liquid hydrogen storage and delivery system 有权
    无泄漏液体氢气储存和输送系统

    公开(公告)号:US07434407B2

    公开(公告)日:2008-10-14

    申请号:US10820654

    申请日:2004-04-08

    IPC分类号: F25B9/00

    摘要: A hydrogen storage and delivery system is provided having an orifice pulse tube refrigerator and a liquid hydrogen storage vessel. A cooling system, coupled to the orifice pulse tube refrigerator, cools the vessel and abates ambient heat transfer thereto in order to maintain the liquid hydrogen in the vessel at or below its saturation temperature. Hydrogen boil-off, and the necessity to provide continuous venting of vaporized hydrogen are minimized or avoided. In a preferred embodiment, the hydrogen storage vessel has a toroidal shape, and the pulse tube refrigerator is a two stage pulse tube refrigerator and extends within a central void space defined at the geometric center of the toroidal storage vessel. Also in a preferred embodiment, the cooling system includes first and second thermal jackets, each having a substantially toroidal shape and enclosing the storage vessel, wherein each of the thermal jackets is thermally coupled to one of the first or second stages of the pulse tube refrigerator in order to cool the vessel and to abate ambient heat leak thereto. The hydrogen storage and delivery system is particularly suitable for use in vehicles, such as passenger automobiles.

    摘要翻译: 提供具有孔口脉冲管制冷器和液体氢存储容器的储氢和输送系统。 耦合到孔口脉冲管制冷器的冷却系统冷却容器并减轻其周围的热传递,以将容器中的液态氢保持在其饱和温度或低于其饱和温度。 氢气沸腾,并且必须提供持续排放蒸发的氢气是最小化或避免的。 在优选实施例中,储氢容器具有环形形状,并且脉冲管制冷器是两级脉冲管制冷器,并且在限定在环形储存容器的几何中心的中心空隙空间内延伸。 同样在优选实施例中,冷却系统包括第一和第二热套,每个具有基本上环形的形状并且包围存储容器,其中每个热套都被热耦合到脉冲管冰箱的第一或第二阶段之一 以便冷却容器并消除其周围的热泄漏。 氢气储存和输送系统特别适用于诸如客车的车辆。

    Nondestructive capture of projectiles
    6.
    发明授权
    Nondestructive capture of projectiles 有权
    射弹的非破坏性捕获

    公开(公告)号:US08237526B2

    公开(公告)日:2012-08-07

    申请号:US12481147

    申请日:2009-06-09

    IPC分类号: H01F7/00 H01F1/00 F41B6/00

    摘要: Apparatus for inductive braking of a projectile are disclosed. Embodiments include a receiver that has a unidirectional conductor having a closed conductive pathway that encircles a passageway for a moving projectile. The unidirectional conductor permits current to flow through it in substantially only one direction around the passageway. As the projectile and its associated magnetic field move past the unidirectional conductor, the moving magnetic field induces a current flow through the closed conductive pathway, which in turn generates a magnetic field behind the projectile having the same polarity as the projectile's field. The two fields attract one another, which both exerts a braking force on the projectile and tends to align the two fields. Alignment of these fields centers the projectile away from the passageway wall. Because the unidirectional conductor permits current to flow in substantially only the direction that produces a field having the same polarity as the moving field, the opposite-polarity repulsive magnetic field that would otherwise be generated ahead of the projectile, which would otherwise deflect the projectile from its path, is suppressed. Methods of inductive braking are also disclosed.

    摘要翻译: 公开了用于射弹感应制动的装置。 实施例包括具有单向导体的接收器,其具有围绕用于移动的射弹的通道的封闭的导电路径。 单向导体允许电流沿着通道大致仅沿一个方向流过它。 随着射弹及其相关的磁场移动通过单向导体,移动磁场引起电流流过闭合的导电路径,这又导致与射弹场相同极性的射弹背后的磁场。 这两个领域相互吸引,两者都对射弹施加制动力,并且倾向于使两个领域相一致。 这些区域的对准使射弹远离通道墙。 因为单向导体允许电流基本上仅在产生具有与运动场相同极性的场的方向上流动,否则将在弹丸之前产生的相反极性的排斥磁场,否则将使抛射体偏离 其路径被抑制。 还公开了感应制动的方法。

    Method and apparatus for detecting the level of a liquid
    7.
    发明授权
    Method and apparatus for detecting the level of a liquid 有权
    用于检测液体液位的方法和装置

    公开(公告)号:US07392691B1

    公开(公告)日:2008-07-01

    申请号:US11255416

    申请日:2005-10-20

    IPC分类号: G01F23/22

    CPC分类号: G01F23/246 G01F23/247

    摘要: A system for determining the position of a gas/liquid interface of a fluid in a tank having a probe and a controller. The probe has silicon diodes arranged linearly on a substrate. The controller applies power to each of the silicon diodes to make a determination of whether a fluid in which the silicon diode is immersed is a liquid or a gas based on a rate of transfer of heat from the silicon diode to the fluid. A method for determining the phase of a fluid in which a sensor is immersed includes the steps of immersing the sensor in a fluid and increasing power applied to the sensor. The value of a thermal transient of the sensor is then measured and the phase of the fluid is determined based on the measured value of the thermal transient.

    摘要翻译: 一种用于确定具有探头和控制器的罐中的流体的气体/液体界面的位置的系统。 探针具有在衬底上线性布置的硅二极管。 控制器对每个硅二极管施加功率,以基于从硅二极管到流体的热传递速率来确定其中硅二极管浸入的流体是液体还是气体。 用于确定传感器浸入的流体的相位的方法包括以下步骤:将传感器浸入流体中并增加施加到传感器的功率。 然后测量传感器的热瞬态值,并根据热瞬变的测量值确定流体的相位。

    DENSIFIER FOR SIMULTANEOUS CONDITIONING OF TWO CRYOGENIC LIQUIDS
    8.
    发明申请
    DENSIFIER FOR SIMULTANEOUS CONDITIONING OF TWO CRYOGENIC LIQUIDS 有权
    用于同时调节两种低温液体的浓度计

    公开(公告)号:US20080072607A1

    公开(公告)日:2008-03-27

    申请号:US11159743

    申请日:2005-06-23

    IPC分类号: F25B9/00 F17C5/00

    摘要: A densifier is provided which in one embodiment can simultaneously densify two cryogenic liquids at different temperatures. The densifier has an oscillatory power source for generating oscillatory power and a two stage pulse tube refrigerator. The oscillatory power source can be a thermoacoustic heat engine or a mechanical oscillatory power source such as a linear flexure bearing compressor. The first stage densifies a first cryogenic liquid to a first cryogenic temperature, and the second stage densifies a second cryogenic liquid to a second, lower cryogenic temperature. A densified propellant management system also is provided which has a densifier for simultaneously densifying two cryogenic liquids at different temperatures, and a cryogenic temperature probe for measuring the temperature gradient in a cryogenic liquid.

    摘要翻译: 提供增密器,其在一个实施例中可以在不同温度下同时致密化两种低温液体。 增密器具有用于产生振荡功率的振荡电源和两级脉冲管式冰箱。 振荡电源可以是热声热发动机或机械振荡电源,例如线性挠曲轴承压缩机。 第一阶段将第一低温液体致密化为第一低温温度,第二阶段将第二低温液体致密化为第二低温低温。 还提供了一种致密化的推进剂管理系统,其具有用于在不同温度下同时致密化两种低温液体的致密器和用于测量低温液体中的温度梯度的低温温度探针。

    Satellite testbed for evaluating cryogenic-liquid behavior in microgravity

    公开(公告)号:US10322825B1

    公开(公告)日:2019-06-18

    申请号:US15430830

    申请日:2017-02-13

    申请人: Sierra Lobo, Inc.

    IPC分类号: B64G1/10 G01N25/00

    摘要: Provided is a testbed for conducting an experiment on a substance in a cryogenic liquid state in a microgravity environment. Such a testbed includes a frame with rectangular nominal dimensions, and a source section supported by the frame for supplying the substance to be evaluated in the cryogenic liquid form. An experiment supported by the frame includes an experiment vessel in fluid communication with the storage tank to receive and condense the substance into the cryogenic liquid state. A sensor senses a property of the cryogenic liquid in the experiment vessel as part of the experiment, and a bus section includes a controller configured to control delivery of the substance to the experiment vessel, and receives property data indicative of the property sensed by the sensor for subsequent evaluation on Earth.

    Liquid-sensing probe and methods for using the same
    10.
    发明授权
    Liquid-sensing probe and methods for using the same 失效
    液体传感探头及其使用方法

    公开(公告)号:US08739620B1

    公开(公告)日:2014-06-03

    申请号:US12860394

    申请日:2010-08-20

    IPC分类号: G01F23/00

    CPC分类号: G01F23/00

    摘要: A sensor assembly includes a main body, a sensor, and a filler. The main body includes an outer surface having a continuously-variable radius of curvature in at least one portion. A sensor in thermal communication with a region of that surface having relatively low radius of curvature is disposed in the assembly recessed from the outer surface. Liquid droplets adhered to the outer surface in this region tend to migrate to a distant location having a higher radius of curvature. The main body has low thermal conductivity. The filler has a relatively higher thermal conductivity and, in embodiments, fills an opening in the outer surface of the main body, providing a thermally-conductive pathway between the sensor and the surrounding environment via the opening. A probe having a plurality of such sensors, and methods of detecting the presence of liquid and phase transitions in a predetermined space are also disclosed.

    摘要翻译: 传感器组件包括主体,传感器和填充物。 主体包括在至少一部分中具有连续可变的曲率半径的外表面。 与该表面的具有相对低曲率半径的区域热连通的传感器设置在从外表面凹入的组件中。 附着在该区域外表面的液滴倾向于迁移到具有较高曲率半径的远处。 主体导热系数低。 填充物具有相对较高的导热性,并且在实施例中填充主体的外表面中的开口,通过开口在传感器和周围环境之间提供导热通路。 还公开了一种具有多个这种传感器的探针,以及检测在预定空间中存在液体和相变的方法。