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    Impedance-increasing method and apparatus as part of a hvdc circuit breaker
    2.
    发明授权
    Impedance-increasing method and apparatus as part of a hvdc circuit breaker 失效
    作为高压直流断路器的一部分的阻抗增加方法和装置

    公开(公告)号：US3657607A

    公开(公告)日：1972-04-18

    申请号：US3657607D

    申请日：1971-03-09

    Applicant: HUGHES AIRCRAFT CO

    Inventor： KNAUER WOLFGANG

    IPC: H01H33/59 ,  H02H7/22

    CPC classification number: H01H33/596

    Abstract: The high voltage DC circuit breaker must generate a variable impedance which increases gradually from negligibly small, when the breaker is closed, to infinitely large, after it has been opened. This invention describes a novel impedance-increasing method comprising serially connected resistance and switch means and a capacitor which shunts both. The switch means, which must be capable of opening and closing a high voltage, is programmed to rapidly switch on and off with increasing offtime so that the time averaged impedance of the DC circuit is increased to an offswitched condition.

    Abstract translation: 高压直流断路器必须产生一个可变阻抗，当断路器闭合时，可变阻抗从可忽略的小到逐渐增大，达到无限大。 本发明描述了一种新颖的阻抗增加方法，其包括串联的电阻和开关装置以及分流两者的电容器。 必须能够打开和关闭高电压的开关装置被编程为随着时间的增加而快速地接通和断开，使得DC电路的时间平均阻抗增加到分离状态。

    Impedance-increasing system and in-line device therefor
    5.
    发明授权
    Impedance-increasing system and in-line device therefor 失效
    阻抗增加系统及其在线设备

    公开(公告)号：US3912975A

    公开(公告)日：1975-10-14

    申请号：US48834574

    申请日：1974-07-15

    Applicant: HUGHES AIRCRAFT CO

    Inventor： KNAUER WOLFGANG ,  DUGAN WILLIAM L

    IPC: H01H3/58 ,  H01H33/16 ,  H01H77/10 ,  H02H7/22 ,  H01H71/00

    CPC classification number: H01H3/58 ,  H01H33/16 ,  H01H77/10

    Abstract: Rotating shaft carries contact arms which are stressed into the switch closed position where they are in contact with two stationary contact fingers by the torque of a stressed torsion bar. An electrodynamic drive motor additionally stressed the torsion bar to rotate the contacts on the contact shaft away from the stationary contact fingers. The contacts are held in the open position by a one-way clutch and disc brake. Release of the disc brake permits the torsion bar to return the rotating contact shaft bar to the switch closed position.

    Circuit breaker
    6.
    发明授权
    Circuit breaker 失效
    断路器

    公开(公告)号：US3868550A

    公开(公告)日：1975-02-25

    申请号：US42863673

    申请日：1973-12-26

    Applicant: HUGHES AIRCRAFT CO

    Inventor： KNAUER WOLFGANG ,  LUTZ MICHAEL A

    IPC: H01H33/59 ,  H02H9/02 ,  H03K17/73 ,  H02H7/22

    CPC classification number: H02H9/02 ,  H01H33/596 ,  H03K17/73

    Abstract: The circuit breaker interrupts current against a high voltage source by opening an in-line switch and causing termination of conduction therethrough by discharging a parallel capacitor to produce a current zero. The parallel capacitor has a crossedfield switch in series therewith to control the rate of voltage application to the parallel in-line switch, and, furthermore, to limit the voltage applied to the capacitor to a small fraction of the full circuit voltage.

    Abstract translation: 断路器通过打开一个在线开关并通过放电并联电容器来产生电流零点来中断通过其的导通来中断针对高电压源的电流。 并联电容器具有串联的交叉场开关以控制对并联在线开关的施加电压的速率，此外，将施加到电容器的电压限制在全电路电压的一小部分。

    Lightweight reflecting structures utilizing magnetic deployment forces
    7.
    发明授权
    Lightweight reflecting structures utilizing magnetic deployment forces 失效
    使用磁性部署力的轻型反射结构

    公开(公告)号：US3605107A

    公开(公告)日：1971-09-14

    申请号：US3605107D

    申请日：1969-07-17

    Applicant: HUGHES AIRCRAFT CO

    Inventor： AMBOSS KURT ,  KNAUER WOLFGANG

    IPC: H01Q15/16 ,  H01Q15/20 ,  H01Q1/36 ,  H01Q19/12

    CPC classification number: H01Q15/161

    Abstract: The apparatus of the present invention provides an ultralightweight collapsible reflecting structure for electromagnetic wave energy that is primarily intended for space applications. The vast distances over which space systems must operate frequently dictate the use of antennas which are highly directional, which generally requires large reflecting structures of relatively close dimensional tolerances for focusing the electromagnetic radiation. The collapsible reflectors of the present case are provided by a precontoured flexible lightweight foil or screen which is deployed by the use of magnetic pressures generated by current loops or permanent magnets.

    Bipolar crossed-field switch tube with uniform magnetic field
    8.
    发明授权
    Bipolar crossed-field switch tube with uniform magnetic field 失效
    具有均匀磁场的双极交叉场开关管

    公开(公告)号：US3906270A

    公开(公告)日：1975-09-16

    申请号：US50709574

    申请日：1974-09-18

    Applicant: HUGHES AIRCRAFT CO

    Inventor： GALLAGHER HAYDEN E ,  KNAUER WOLFGANG

    IPC: H01J17/14 ,  H01J1/50

    CPC classification number: H01J17/14

    Abstract: Crossed-field switch tube has two electrodes to define an annular interelectrode gap. An annular magnetic field is produced in the gap with the field uniform along the length of the gap. Circuit connects electrodes so that, with alternating polarity, the gap alternately conducts with about the same voltage drop.

    Abstract translation: 交叉场开关管具有两个电极以限定环形电极间隙。 在间隙中产生环形磁场，沿着间隙的长度与场均匀。 电路连接电极，使得具有交替极性，间隙以大约相同的电压降交替地传导。

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