会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 89. 发明申请
    • SYSTEM AND METHOD FOR CRYOGENIC COOLING
    • 冷冻冷却系统及方法
    • US20120038120A1
    • 2012-02-16
    • US13106180
    • 2011-05-12
    • Allen J. BartlettWilliam JohnsonMark CollinsSergei SyssoevJames A. O'NeilMichael J. Eacobacci
    • Allen J. BartlettWilliam JohnsonMark CollinsSergei SyssoevJames A. O'NeilMichael J. Eacobacci
    • B23B31/02F25D5/00F25B43/02F25B9/00F25B9/04F25B7/00F25B49/00
    • F25B7/00F25B9/002F25B9/006F25B9/02F25B9/14F25B2400/01F25B2400/06F25B2600/0251F25B2600/0253F25B2700/21Y02B30/741Y10T279/34
    • In accordance with an embodiment of the invention, there is provided a system for cooling a load. The system comprises a closed loop primary refrigeration system comprising: a primary compressor taking in a primary refrigerant at a low pressure and discharging the primary refrigerant at a high pressure; an insulated enclosure comprising an inlet receiving the primary refrigerant at the high pressure from the primary compressor and an outlet returning the primary refrigerant at the low pressure to the primary compressor; at least one heat exchanger within the insulated enclosure receiving the primary refrigerant at the high pressure and cooling the primary refrigerant using a secondary refrigerant from a secondary refrigeration system, the secondary refrigerant being in heat exchange relationship with the primary refrigerant in the at least one heat exchanger; an expansion unit within the insulated enclosure receiving the primary refrigerant at the high pressure from the at least one heat exchanger and discharging the primary refrigerant at the low pressure; and a supply line delivering the primary refrigerant at the low pressure to the load and a return line returning the primary refrigerant from the load to the primary refrigeration system. The system further comprises the secondary refrigeration system, wherein the secondary refrigeration system comprises at least one secondary cryogenic refrigerator. A system control unit controls operation of at least one of the primary refrigeration system and the secondary refrigeration system to provide a variable refrigeration capacity to the load based on at least one of: a pressure of the primary refrigerant delivered to the load, and at least one temperature of the load.
    • 根据本发明的实施例,提供了一种用于冷却负载的系统。 该系统包括闭环主要制冷系统,其包括:初级压缩机,其在低压下接收初级制冷剂并在高压下排出初级制冷剂; 绝缘外壳,其包括接收来自主压缩机的高压下的初级制冷剂的入口和将低压下的初级制冷剂返回到主压缩机的出口; 所述绝热壳体内的至少一个热交换器接收高压下的初级制冷剂并且使用来自二次制冷系统的二次制冷剂冷却所述初级制冷剂,所述二次制冷剂在所述至少一个热量中与所述初级制冷剂处于热交换关系 交换器 所述绝缘壳体内的膨胀单元接收来自所述至少一个热交换器的高压下的所述初级制冷剂,并且在所述低压下排出所述初级制冷剂; 以及将低压下的一次制冷剂输送到负载的供给管线和将一次制冷剂从负载返回到主制冷系统的返回管路。 该系统还包括二次制冷系统,其中次级制冷系统包括至少一个二次低温冰箱。 系统控制单元控制主要制冷系统和次级制冷系统中的至少一个的操作,以向负载提供可变制冷能力,其基于以下至少一个:输送到负载的一次制冷剂的压力,并且至少 一个温度的负载。
    • 90. 发明申请
    • Method of determining and controlling the inertial attitude of a spinning, artificial satellite and systems therefor
    • 确定和控制旋转,人造卫星及其系统的惯性姿态的方法
    • US20080087769A1
    • 2008-04-17
    • US11818723
    • 2007-06-15
    • William Johnson
    • William Johnson
    • B64G1/36B64G1/32
    • B64G1/361B64G1/281G01S3/7862G05D1/0883
    • A method of and apparatus for determining and controlling the inertial attitude of a spinning artificial satellite without using a suite of inertial gyroscopes. The method and apparatus operate by tracking three astronomical objects near the Earth's ecliptic pole and the satellite's and/or star tracker's spin axis and processing the track information. The method and apparatus include steps and means for selecting preferably three astronomical objects using a histogram method and determining a square of a first radius (R12) of a track of a first astronomical object; determining a square of a second radius (R22) of a track of a second astronomical object; determining a square of a third radius (R32) of a track of a third astronomical object; determining the inertial attitude of the spin axis using the squares of the first, second, and third radii (R12, R22, and R32) to calculate pitch, yaw, and roll rate; determining a change in the pitch and yaw of the artificial satellite; and controlling on-board generated current flow to various orthogonally-disposed current-carrying loops to act against the Earth's magnetic field and to apply gyroscopic precession to the spinning satellite to correct and maintain its optimum inertial attitude.
    • 用于在不使用一套惯性陀螺仪的情况下确定和控制旋转人造卫星的惯性姿态的方法和装置。 该方法和装置通过跟踪地球黄道附近的三个天文物体和卫星和/或星形跟踪器的自旋轴进行操作并处理轨道信息。 所述方法和装置包括用于使用直方图方法优选地选择三个天文物体并且确定一个轨道的第一半径的平方的步骤和装置(R 1> 1 < 第一个天文物体; 确定第二天文物体的轨道的第二半径(R 2 2&lt; 2&gt; 2&gt;)的平方; 确定第三天文物体的轨道的第三半径(R 3 3 2)的平方; 使用第一,第二和第三半径的平方(R 1,L 2,R 2,...,SUP)来确定自旋轴的惯性姿态 > 2&lt; 3&gt;和R 3&lt; 2&gt; 2)以计算俯仰,偏航和滚动速率; 确定人造卫星的俯仰和偏航的变化; 并且控制板上产生的电流流向各种正交布置的载流回路,以对地球的磁场起作用,并对旋转卫星施加陀螺进动,以校正和保持其最佳惯性姿态。