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1. 发明授权

US4551596A Surge-absorberless vacuum circuit interrupter 失效
标题翻译：浪涌吸收器真空断路器
公开(公告)号：US4551596A
公开(公告)日：1985-11-05
申请号：US478306
申请日：1983-03-24
申请人： Ryuji Watanabe , Hisashi Ando , Keiichi Kuniya , Yukio Kurosawa
发明人： Ryuji Watanabe , Hisashi Ando , Keiichi Kuniya , Yukio Kurosawa
IPC分类号： H01H33/66 , H01H1/02 , H01H1/0233 , H01H33/664
CPC分类号： H01H33/664 , H01H1/0203 , H01H1/0233
摘要： A small-sized, light weighted vacuum circuit interrupter is provided. The interrupter comprises a vacuum container confining a vacuum atmosphere of a pressure less than 10.sup.-5 mmHg and a pair of electrodes at least one of which is a movable electrode for making and breaking an electric circuit including either a transformer of a rated surge voltage strength of less than 45 kV or a motor of a rated surge voltage strength of less than 25 kV. At least one of the electrodes has a contact made of a porous body of a refractory conductive material and an impregnate selected from the group consisting of silver telluride, silver selenide and mixtures thereof impregnated in the porous body in an amount sufficient to give the interrupter a chopping current of not more than 1A and an arc extinguishing capability at 1MHz of not more than 27 A/.mu.s when measured in a circuit of 6 kV. The interrupter can be connected to the load without a surge absorber for protecting the breaker from a surge voltage generated at the time of interrupting the circuit.
摘要翻译：提供了一个小型轻型真空断路器。断流器包括限制压力小于10-5mmHg的真空气氛的真空容器和一对电极，其中至少一个是可动电极，用于制造和断开包括额定浪涌电压强度的变压器的电路小于45kV的电动机或额定浪涌电压强度小于25kV的电动机。所述电极中的至少一个具有由耐火导电材料的多孔体制成的接触体和浸渍在多孔体中的浸渍剂，所述浸渍物选自碲化镉，硒化银及其混合物，其量足以给断流器a 在6 kV的电路中测量时，斩波电流不大于1A，1MHz时的灭弧能力不大于27 A /μs。断路器可以连接到负载而没有浪涌吸收器，用于保护断路器免受中断电路时产生的浪涌电压。

2. 发明授权

US4546222A Vacuum switch and method of manufacturing the same 失效
标题翻译：真空开关及其制造方法
公开(公告)号：US4546222A
公开(公告)日：1985-10-08
申请号：US584903
申请日：1984-02-29
申请人： Ryuji Watanabe , Akira Wada , Hisashi Ando , Seiki Shimizu , Yukio Kurosawa , Kiyoji Iwashita
发明人： Ryuji Watanabe , Akira Wada , Hisashi Ando , Seiki Shimizu , Yukio Kurosawa , Kiyoji Iwashita
IPC分类号： H01H33/66 , H01H1/02 , H01H33/664
CPC分类号： H01H33/6644 , H01H1/0203
摘要： Disclosed is a vacuum switch having a container and a pair of contact electrodes, and a method of manufacturing the same, in which at least one of the contact electrodes is constituted by a member made up of a skeleton containing cobalt as its principal component with pores into which a copper alloy containing copper as its principal component, silver, and a low melting point and high vapor pressure element having substantially no or very low solid-solubility with respect to the copper at a room temperature is impregnated.
摘要翻译：公开了一种具有容器和一对接触电极的真空开关及其制造方法，其中至少一个接触电极由包含钴作为主要成分的骨架构成的构件构成，具有孔浸渍含有铜作为其主要成分的铜合金，银，以及在室温下相对于铜基本上没有或非常低的固溶度的低熔点和高蒸气压元素。

3. 发明授权

US5759646A Vessel of pyrolytic boron nitride 失效
标题翻译：热解氮化硼的容器
公开(公告)号：US5759646A
公开(公告)日：1998-06-02
申请号：US699148
申请日：1996-08-16
申请人： Shoji Kano , Nobuo Kawada , Ryoji Nakajima , Yukio Kurosawa
发明人： Shoji Kano , Nobuo Kawada , Ryoji Nakajima , Yukio Kurosawa
IPC分类号： C04B41/87 , C04B35/583 , C04B41/50 , C04B41/51 , C04B41/85 , C04B41/88 , C30B15/10 , C30B23/06 , C30B35/00 , H01L21/203 , B01L3/04
CPC分类号： C04B41/009 , C04B41/5001 , C04B41/5133 , C04B41/85 , C04B41/88 , C30B15/10 , C30B23/06 , C30B35/002 , Y10T428/131 , Y10T428/1317
摘要： Proposed is an improvement in a vessel, e.g., crucible, of pyrolytic boron nitride (PBN) used, for example, in the process of molecular beam epitaxy for melting silicon and the like at a high temperature. Different from conventional PBN crucibles used for such a process, in which contamination of high-purity silicon is unavoidable by the reaction of molten silicon with PBN or a thermal decomposition products of boron nitride, the inventive PBN vessel is provided on the surface with a protective coating layer of pyrolytic graphite or a refractory metal such as platinum so as not to cause troubles due to contamination of high-purity silicon melted therein with the crucible materials.
摘要翻译：提出了在例如用于在高温下熔化硅等的分子束外延过程中使用的热解氮化硼（PBN）的容器（例如坩埚）的改进。与用于这种工艺的常规PBN坩埚不同，其中高纯度硅的污染是熔融硅与PBN或氮化硼的热分解产物的反应所不可避免的，本发明的PBN容器在表面上提供有保护热解石墨或难熔金属如铂的涂层，以免由于用坩埚材料熔化的高纯度硅的污染而引起麻烦。

4. 发明授权

US5502290A Switch mechanism 失效
标题翻译：开关机构
公开(公告)号：US5502290A
公开(公告)日：1996-03-26
申请号：US483878
申请日：1995-06-07
申请人： Osamu Koyanagi , Kunio Hirasawa , Masanori Tsukushi , Yukio Kurosawa , Tadashi Sato , Youichi Ohshita
发明人： Osamu Koyanagi , Kunio Hirasawa , Masanori Tsukushi , Yukio Kurosawa , Tadashi Sato , Youichi Ohshita
IPC分类号： H01H33/34 , H01H33/56
CPC分类号： H01H33/34 , H01H33/563
摘要： A switching mechanism for use e.g. in a circuit breaker of an underground electric substation has a movable rod which causes opening and closing of an electrical contact and a hydraulic operating system. The hydraulic operating system uses a hydraulic fluid which has a high flammability temperature or is incombustible. Thus, even if such fluid leaks from the hydraulic operating system, the risk of fire or explosion is minimized. The hydraulic operating system may have a sealed tank for the fluid, preferably with a variable volume expansion chamber. In a further development, the hydraulic operating system and possibly parts of the movable rod, is enclosed in a casing which is sealed and is filled with a gas which does not support combustion therein. Thus, the risk of fire or explosion is further reduced. The casing may have a variable volume expansion chamber.
摘要翻译：一种切换机制。在地下电力变电站的断路器中具有使电触头和液压操作系统打开和关闭的活动杆。液压操作系统使用具有高可燃性温度或不燃的液压油。因此，即使这种液体从液压操作系统泄漏，也会使火灾或爆炸的风险最小化。液压操作系统可以具有用于流体的密封罐，优选地具有可变体积膨胀室。在进一步的发展中，液压操作系统和可能的可移动杆的部分被封装在密封的壳体中并且填充有不支持燃烧的气体。因此，进一步降低了火灾或爆炸的危险。壳体可以具有可变体积膨胀室。

5. 发明授权

US5274205A Gas blast, puffer type circuit breaker with improved nozzle 失效
标题翻译：鼓风式，河豚式断路器，改良喷嘴
公开(公告)号：US5274205A
公开(公告)日：1993-12-28
申请号：US37529
申请日：1993-03-26
申请人： Masanori Tsukushi , Akira Hashimoto , Minori Satoh , Yukio Kurosawa , Kunio Hirasawa , Fumihiro Endo , Tokio Yamagiwa
发明人： Masanori Tsukushi , Akira Hashimoto , Minori Satoh , Yukio Kurosawa , Kunio Hirasawa , Fumihiro Endo , Tokio Yamagiwa
IPC分类号： H01H33/70 , H01H33/88
CPC分类号： H01H33/703 , H01H33/7076
摘要： A gas blast circuit breaker comprises an insulation nozzle for blowing extinguishing gas to an arc generated between a stationary contact and a movable contact. The nozzle has a throat section into and out of which one of the two contacts is movable and a divergent section provided downstream of the throat section. A slanting surface for increasing a reflectivity of energy intensity of the arc is formed on the divergent section of the nozzle. The nozzle is formed of a fluoroplastic material and boron nitride powder of not more than 15 vol. % is added as a filler.
摘要翻译：燃气断路器包括用于将灭火气体吹送到在固定触点和可动触头之间产生的电弧的绝缘喷嘴。喷嘴具有进入和离开两个触点中的一个可移动的喉部，以及设置在喉部的下游的发散部分。在喷嘴的发散部分上形成用于增加电弧能量强度的反射率的倾斜表面。喷嘴由氟塑料材料和不超过15体积的氮化硼粉末形成。加入％作为填料。

6. 发明授权

US5038082A Vacuum switch apparatus 失效
标题翻译：真空开关装置
公开(公告)号：US5038082A
公开(公告)日：1991-08-06
申请号：US489666
申请日：1990-03-07
申请人： Hiroshi Arita , Kouzi Suzuki , Hiroyuki Sugawara , Yukio Kurosawa
发明人： Hiroshi Arita , Kouzi Suzuki , Hiroyuki Sugawara , Yukio Kurosawa
IPC分类号： B01D59/34 , H01H33/66 , H01J17/56 , H01J21/18 , H01S3/097 , H01T2/00
CPC分类号： H01J17/56 , H01J21/18
摘要： A vacuum switch apparatus has an electrically insulating vacuum enclosure which is evacuated to a vacuum degree of 2.times.10.sup.-2 Torr or less. One set of anode and cathode electrodes is arranged in the vacuum enclosure, having capacity which permits the flow of a discharge current of at least 1 KA therebetween and being operable to switch the discharge current at least 10.sup.6 shots. A high voltage power supply applies a high voltage of at least 20 KV across the anode and cathode electrodes. An electron beam irradiation unit irradiates an electron beam on the anode electrode through the cathode electrode. A control electrode is arranged between the beam irradiation unit and the cathode electrode, for controlling passage and interception of the electron beam. A control voltage power supply applies a control voltage to the control electrode. An electromagnetic coil is arranged at least exteriorly of the vacuum enclosure, for generating electromagnetic force which prevents the electron beam, emitted from the electron beam irradiation unit and reaching the anode electrode through the control and cathode electrodes, from being scattered.

7. 发明授权

US4975800A Contact abnormality detecting system 失效
标题翻译：接触异常检测系统
公开(公告)号：US4975800A
公开(公告)日：1990-12-04
申请号：US321382
申请日：1989-03-10
申请人： Youichi Oshita , Akira Hashimoto , Yukio Kurosawa , Yoshiaki Inui , Tokio Yamagiwa
发明人： Youichi Oshita , Akira Hashimoto , Yukio Kurosawa , Yoshiaki Inui , Tokio Yamagiwa
IPC分类号： G01R31/327 , H01H11/00 , H02H3/50
CPC分类号： H01H11/0062 , G01R31/3274 , H02H3/50
摘要： A contact abnormality detection system for use in a gas-insulated switchgear or other power transmission or distribution apparatus. A gas-insulated switchgear includes a hermetic housing, an insulating gas sealed in the housing, and conductors in the housing having contacts for providing a path for a large current and being electrically insulated from the housing. An abnormality in the contacts causes the contacts to generate vibrations when a large current flows through them. A vibration detector detects vibrations generated by the switchgear including the vibrations generated by the contacts. The frequency spectrum of the vibrations detected by the vibration detector is analyzed to detect if the vibrations contain frequency components in the range of 200 to 500 Hz which meet predetermined criteria. If the vibrations do contain such frequency components, a contact abnormality decision unit decides that the contacts exhibit a contact abnormality, thereby permitting the abnormality to be identified before the contacts fail.

8. 发明授权

US4427857A Vacuum interrupter 失效
标题翻译：真空灭弧室
公开(公告)号：US4427857A
公开(公告)日：1984-01-24
申请号：US319985
申请日：1981-11-10
申请人： Nobuo Abe , Hiroyuki Sugawara , Yukio Kurosawa , Akira Wada , Kiyoji Iwashita
发明人： Nobuo Abe , Hiroyuki Sugawara , Yukio Kurosawa , Akira Wada , Kiyoji Iwashita
IPC分类号： H01H33/66 , H01H33/664
CPC分类号： H01H33/6644 , H01H33/6643
摘要： A vacuum interrupter of parallel magnetic field electrode type comprising a pair of separatable arc electrodes disposed within a vacuum vessel, with each being provided on its back side with a conductive rod extending outwardly of the vacuum vessel. Coil electrodes are electrically connected between the associated arc electrode and rod for applying parallel magnetic fields to arc, and slits are formed in the arc electrodes for suppressing eddy currents of the arc electrodes resulting from the parallel fields. A reinforcement member of an electric conductivity higher than a main surface portion of the arc electrode is provided on the back side of the arc electrode opposite to said main surface portion so that the resulting arc current flows uniformly through the reinforcement member so that a higher interruption efficiency can be obtained for the vacuum interrupter.
摘要翻译：一种并联磁场电极型真空断路器，包括设置在真空容器内的一对可分离的电弧电极，每个在其后侧设置有一个向该真空容器向外延伸的导电棒。线圈电极电连接在相关联的电弧电极和棒之间，用于将平行磁场施加到电弧上，并且在电弧电极中形成狭缝以抑制由平行场引起的电弧电极的涡流。在电弧电极的与所述主表面部分相对的背面上设置有比电弧电极的主表面部分高的电导率的加强部件，使得所产生的电弧电流均匀地流过加强部件，使得较高的中断可以获得真空断路器的效率。

9. 发明授权

US4163130A Vacuum interrupter with pressure monitoring means 失效
标题翻译：带压力监控装置的真空灭弧室
公开(公告)号：US4163130A
公开(公告)日：1979-07-31
申请号：US708098
申请日：1976-07-23
申请人： Yoshiyuki Kubota , Yukio Kurosawa , Hiroyuki Sugawara
发明人： Yoshiyuki Kubota , Yukio Kurosawa , Hiroyuki Sugawara
IPC分类号： H01H33/668 , H01H33/66
CPC分类号： H01H33/668
摘要： A vacuum interrupter with pressure monitoring means wherein a pair of separable electrodes are arranged within a highly evacuated envelope and are connected to a high voltage circuit provided with a vacuum pressure detector element which has a pair of detector electrodes insulated from each other and serving to detect the pressure of the vacuum within the evacuated envelope. The vacuum pressure detector element has a voltage applied thereto in such a manner that one of the detector electrodes is conductively connected to the one end of the evacuated envelope to which the high voltage circuit is connected and the other detector electrode is connected to ground potential through a series connection member consisting of different sorts of voltage allotment elements which are selected from a resistance, an inductance, and a capacitor and whose voltage allotment ratio varies in dependence on frequency. A vacuum pressure detector means detects the operation of the vacuum pressure detector element.
摘要翻译：一种具有压力监测装置的真空断路器，其中一对可分离电极被布置在高度抽真空的外壳内并且连接到具有真空压力检测器元件的高压电路，所述真空压力检测器元件具有彼此绝缘的一对检测器电极，并用于检测抽真空的真空内的真空压力。真空压力检测器元件具有施加到其上的电压，使得检测器电极之一导电连接到连接有高压电路的真空外壳的一端，另一个检测器电极通过由电阻，电感和电容器选择的不同种类的电压分配元件组成的串联连接元件，其电压分配比根据频率而变化。真空压力检测器装置检测真空压力检测器元件的操作。

10. 发明授权

US06751078B1 Power use circuit breaker and electrical circuit arrangement for electric power generation plant 失效
标题翻译：发电厂用电断路器及电路布置
公开(公告)号：US06751078B1
公开(公告)日：2004-06-15
申请号：US09637497
申请日：2000-08-11
申请人： Noriaki Munakata , Yukio Kurosawa , Haruo Honda , Shigetoshi Oouchi , Masaki Shinohara
发明人： Noriaki Munakata , Yukio Kurosawa , Haruo Honda , Shigetoshi Oouchi , Masaki Shinohara
IPC分类号： H02H900
CPC分类号： H01H33/002 , H01H33/143 , H01H33/167 , H01H33/6661
摘要： A power use circuit breaker includes an arc generating switching unit which adds an electrical resistance in a circuit during current interruption to attenuate a current to be interrupted, a vacuum bulb which is electrically connected in series with the arc generating switching unit and interrupts the attenuated current and a current conducting switching unit connected in parallel with the series circuit of the vacuum bulb and the arc generating switching unit. For current conduction the current conducting switching unit is closed after the vacuum bulb and the arc generating switching unit are closed, and for current interruption after opening the current conducting switching unit, the vacuum bulb and the arc generating switching unit are opened.
摘要翻译：电力使用断路器包括电弧产生开关单元，其在电流中断期间在电路中增加电阻以衰减要中断的电流;真空灯泡，其与电弧产生开关单元串联电连接并中断衰减的电流以及与真空管和串联电路并联连接的电流开关单元。对于导通电流，导通开关单元在真空灯泡和电弧产生切换单元关闭之后关闭，并且在打开导电切换单元之后的电流中断，真空灯泡和电弧产生切换单元打开。

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