Lightweight bipolar metal-gas battery
    1.
    发明公开
    Lightweight bipolar metal-gas battery 失效
    光双极金属 - 气体的电池。

    公开(公告)号:EP0188873A2

    公开(公告)日:1986-07-30

    申请号:EP85307653.7

    申请日:1985-10-23

    IPC分类号: H01M10/34 H01M2/20

    摘要: A bipolar metai-gas battery cell stack (1) eliminates the heavy bipolar plates (11) of the prior art by means of locating the series electrical connections (25, 27) between oppositely polarized electrodes (5, 7) of adjacent cells (3) external to the cells (3) in a dielectric frame (21, 23). As a result, the reliability of said electrical connections (25, 27) is improved, weight is saved, and reactant gas screens (15) and electrolyte reservoirs (13) can beneficially be made of compressible lightweight materials. Electrolyte is beneficially confined within each cell (3), and secondary (overcharge) gasses are beneficially confined within each cell (3) in a region (17) proximate the positive electrode (7). A hydrophobic barrier (29) and the frame segments (21, 23) prevent intercell migration of electrolyte and secondary gasses.

    Spacecraft attitude control system
    2.
    发明公开
    Spacecraft attitude control system 失效
    SPACECRAFT态度控制系统

    公开(公告)号:EP0101302A3

    公开(公告)日:1985-07-31

    申请号:EP83304644

    申请日:1983-08-11

    IPC分类号: G05D01/08 B64G01/24

    摘要: A digital system for controlling the attitude of a spacecraft (14), e.g., a satellite, with respect to three orthogonal axes. The system can control satellites (14) in parking orbit, transfer orbit, or final operational orbit, whether or not the satellite (14) employs one or more momentum wheels. A processor (2) converts weighted data from spacecraft sensors (12), representing angular orientation and angular velocities about each of the three axes, into thruster pulsetrain signatures to command the firing of each of six thrusters positioned about spacecraft (14). A positive and a negative thruster being positioned to impart both directions of angular momentum about each of the three axes. Each thruster pulsetrain signature is created once every processed error cycle period T1, and contains a varying number of pulses of varying widths. A negative feedback PWPF loop (2, 16, 20, 22, 24) is actuated for each of the three axes, preferably several times each Tl inorder to achieve better thrust on/off resolution. The PWPF loops are preferably implemented by digital means. Serial-out shift registers (44, 46) load the thruster pulsetrain signatures into means (48, 50, 52, 54) for firing the thrusters, preferably after splitting the signature pulses into clone pulses in order to minimize the impact of errors due to asynchronization between the clock which loads the registers (44, 46) and the clock which shifts these registers. Data extenders (40, 42) eliminate possible gaps caused by asynchronization, and thus prevent unwanted on/off thruster switching.

    Electronic on-orbit roll/yaw satellite control
    6.
    发明公开
    Electronic on-orbit roll/yaw satellite control 失效
    在轨卫星的滚转和偏航运动的电子控制。

    公开(公告)号:EP0071445A2

    公开(公告)日:1983-02-09

    申请号:EP82303934.2

    申请日:1982-07-26

    IPC分类号: B64G1/28

    CPC分类号: B64G1/285 G05D1/0883

    摘要: Disclosed is a method and apparatus for estimating yaw error and roll and yaw disturbance torques from measured roll error and yaw momentum on a continuous on-orbit basis in an orbiting satellite. The information thus obtained can be used to correct continuously for the yaw error by means of, for example, activating a magnetic torquer. Two control loops are described, a fast loop 69 to damp nutations by changing momentum wheel speed, and a slow loop 1 of the Luenberger observer variety. The latter is a yaw error correction loop which also serves to unload yaw momentum. The satellite in which the invention was first incorporated is of the type having three momentum wheels, all situated in the plane orthogonal to the roll axis. h normal operation, two wheels, each having major momentum component along the pitch axis and minor momentum component along the yaw axis, are operable. A third backup wheel aligned along the yaw axis becomes operable only in the eventuality that one of the primary wheels suffers a breakdown during the life of the satellite. The slow speed yaw loop 1 is used to adjust a magnetic coil torquer. It can be implemented in a number of forms including a hard-wired analog form or a digital computer with certain constant scaling factors programmed into the memory of the computer.

    Machine gun and ejection system therefor
    8.
    发明公开
    Machine gun and ejection system therefor 失效
    PatronenauswurfeinrichtungfürMaschinengewehre。

    公开(公告)号:EP0061203A1

    公开(公告)日:1982-09-29

    申请号:EP82103633.2

    申请日:1980-06-10

    发明人: Bains, William R.

    IPC分类号: F41D11/00

    摘要: An externally powered twin-barrel machine gun includes a shuttle (42) having two firing chambers (64), 66). The shuttle linearly moves between two positions so that the firing chambers are alternately fed a round of ammunition and discharged. A feed system (21) has a pair of augers (23, 24) each with a helical groove (26) therein which receives a round of ammunition which obtains a dwell position on a zero pitched section (28) of the grooves. A ramming system (91) rams a round of ammunition to the firing chamber aligned therewith and simultaneously ejects anyspent cartridge through a forward aperture (62) in the housing (16). The spent cartridge is frictionally engaged by an axially aligned acceleration belt (76) which quickly withdraws the spent cartridge from the firing chamber and accelerates it onto a deflection cam (88).

    摘要翻译: 外部供电的双筒机枪包括具有两个发射室(64)的梭子(42),66)。 梭子在两个位置之间线性移动,使得发射室交替地馈送一个弹药并排出。 进料系统(21)具有一对螺旋推运器(23,24),每一个在其中具有螺旋槽(26),其接收一轮弹药,该弹药在槽的零倾斜部分(28)上获得停留位置。 撞击系统(91)向与其对准的发射室弹起一个弹药,同时将任何已用的药筒通过外壳(16)中的前部孔(62)排出。 废料筒通过轴向对齐的加速带(76)摩擦地接合,其快速地将消耗的料筒从燃烧室中抽出并将其加速到偏转凸轮(88)上。

    Reciprocating feed system and automatic machine gun incorporating same
    9.
    发明公开
    Reciprocating feed system and automatic machine gun incorporating same 失效
    馈送往复式输送机元件,因此配备机枪。

    公开(公告)号:EP0038384A1

    公开(公告)日:1981-10-28

    申请号:EP80301178.2

    申请日:1980-04-11

    IPC分类号: F41D10/28 B65G47/52

    CPC分类号: F41A9/35 B65G47/846 F41A9/30

    摘要: A twin-barrel machine gun has two stationary firing chambers (16,18), a conveyor (26), and a feed system (20) mounted within a housing. The feed system 20 transfers ammunition (22) from the conveyor 26 to the firing chambers 116,18). The feed system (22) includes a sprocket (48) pivotably mounted about its central longitudinal axis. The sprocket (48) has two receptacle slots (50,52) and two discharge slots (62,64) circumferentially spaced thereabout. The sprocket (48) is rotatable between a first and second position. The receptacle slots (50,52) each have a first position aligned with the conveyor to receive a round of ammunition and a second position aligned with a respective firing chamber. One receptacle slot is in its first position when the other is in its second position. The discharge slots also have a first position aligned with a firing chamber and a second position aligned with an outlet in the housing. One discharge slot is in its first position when the other is in its second position. An ejector cam (84) is also rotatably mounted about an axis aligned with the axis of rotation of the sprocket (48). The ejector cam is fitted within a central hollow of the sprocket. A drive gear (78,80,126,128,116,118) connected to the sprocket oscillates the sprocket between its first and second positions and a second drive gear (100,102,90,112,114,116,118) oscillates the ejector cam (84) so that it laterally passes through the first and second discharge slots when in their respective second positions. The ejector cam ejects any cartridges from the discharge slot as it passes therethrough.

    摘要翻译: 的双桶机枪具有两个静止的喷发腔(16,18),输送机(26),和安装在外壳系统(20)内的进料。 从输送机(26)到喷墨腔(16,18)的进料系统20将弹药(22)。 进料系统(22)包括一个链轮(48)枢转地安装绕其中心纵向轴线旋转。 链轮(46)具有两个接收槽(50,52)和两个输出槽(62,64)沿周向间隔围绕其。 链轮(48)是第一和第二位置之间可旋转的基座。 插座槽(50,52)各自具有与输送机对准的第一位置以接收圆弹药并用respectivement发射室对准的第二位置。 一个容纳槽处于其第一位置时,另一个是在其第二位置。 因此,该输出槽具有带有烧结室和在所述壳体中与出口对齐的第二位置对准的第一位置。 一个放电槽处于其第一位置时,另一个是在其第二位置。 喷射器凸轮(84)因此,可旋转地安装在左右轴与链轮(48)的旋转轴线对齐。 喷射器凸轮链轮的中央中空部内装配。 连接到spocket驱动齿轮(78,80,126,128,116,118)振荡其第一位置和第二位置和第二驱动齿轮(100,102,90,112,114,116,118)之间的链轮振荡喷射器凸轮(84),所以这样做是尾盘反弹通过第一和第二排出槽 当他们respectivement第二位置。 所述喷射器喷射凸轮任何墨盒从排出口,因为它穿过那里。

    DC-DC converter with current and voltage regulation
    10.
    发明公开
    DC-DC converter with current and voltage regulation 失效
    Gleichstrom / Gleichstrom-Umformer mit Strom- und Spannungsregelung。

    公开(公告)号:EP0019096A1

    公开(公告)日:1980-11-26

    申请号:EP80102104.9

    申请日:1980-04-18

    IPC分类号: H02M3/155 H02M7/155

    CPC分类号: H02M3/3376 H02M2001/009

    摘要: A DC-DC-Converter of the switching type is disclosed with energy storage on the primary side (6) of the isolation transformer (5). Four transistors (1,2,3,4) or other switching devices are switched sequentially to convert the unregulated input direct current to alternating current. If no rectifiers are used, the output is a substantially squarewave alternating current and hence the device can be used as a DC-AC converter. Multiple outputs (30,40,60) can be used; when the load through them is varied, the output voltage on the other outputs does not appreciably change. The device has a high efficiency (over 85 percent), is current limited, and has no minimum or maximum output voltage limitations. An inductor (21) is employed on the primary side (6) of the transformer (5) for temporary storage during the switching of the transistors (1,2,3,4). The output voltage is regulated by means of pulse width modulation.

    摘要翻译: 在隔离变压器(5)的初级侧(6)上公开了具有能量存储的开关型DC-DC转换器。 四个晶体管(1,2,3,4)或其他开关器件被顺序切换以将未调节的输入直流电转换为交流电。 如果不使用整流器,则输出是基本上为方波的交流电流,因此该装置可用作DC-AC转换器。 可以使用多个输出(30,40,60) 当通过它们的负载变化时,其他输出端的输出电压不会明显变化。 该器件具有高效率(超过85%),电流受限,并且没有最小或最大输出电压限制。 在晶体管(1,2,3,4)的切换期间,在变压器(5)的初级侧(6)上使用电感器(21)用于临时存储。 输出电压通过脉宽调制来调节。