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31. 发明授权

US6057629A Piezoelectric vibrator for suppressing harmonic vibrations of lower orders 有权
标题翻译：用于抑制低阶谐波振动的压电振子
公开(公告)号：US6057629A
公开(公告)日：2000-05-02
申请号：US157638
申请日：1998-09-21
申请人： Kiyoshi Nakamura , Koichi Hirama
发明人： Kiyoshi Nakamura , Koichi Hirama
IPC分类号： H03H3/013 , H03H9/02 , H03H9/09 , H03H9/19 , H03H9/15 , H01L41/047
CPC分类号： H03H9/02086 , H03H9/09 , H03H9/19
摘要： A unit for suppressing harmonic vibration of a lower order which does not have desired frequency in an overtone resonator consisting main electrodes and sub electrodes. Harmonic vibration of a lower order suppressing piezoelectric vibrator comprises main electrodes arranged on a piezoelectric substrate and sub electrodes arranged in the vicinity of the main electrodes with gaps provided therebetween. If the electric equivalent circuit of the resonator is expressed by a coupling circuit which connects in series a circuit, which connects in parallel a series resonance circuit by the sub electrodes and coupling capacity indicating that the main electrodes are coupled with the sub electrodes, to a series resonance circuit by the main electrodes, then their loop frequencies substantially coincide with each other.
摘要翻译：在由主电极和副电极组成的谐波共振器中抑制不具有期望频率的低阶谐波振动的单元。低阶压电振动器的谐波振动包括布置在压电基片上的主电极和布置在主电极附近的副电极，间隙设置在主电极之间。如果谐振器的电等效电路由串联连接的电路表示，该电路将由子电极串联的串联谐振电路和指示主电极与子电极耦合的耦合电容并联连接到串联谐振电路，然后它们的回路频率基本上一致。

32. 发明授权

US5847534A Control system for electric vehicle 失效
标题翻译：电动汽车控制系统
公开(公告)号：US5847534A
公开(公告)日：1998-12-08
申请号：US696660
申请日：1996-08-14
申请人： Tokunosuke Tanamachi , Kiyoshi Nakamura
发明人： Tokunosuke Tanamachi , Kiyoshi Nakamura
IPC分类号： B60L9/18 , B60L3/10 , H02P27/06 , H02P5/34
CPC分类号： B60L3/10 , B60L2200/26 , B60L2220/12 , Y02T10/7258
摘要： The control system is constructed so that an inverter output frequency command is increased/decreased based on a frequency-to-time rate-of-change command, and the frequency-to-time rate-of-change command is controlled with a current control system. Further, it is also constructed so that the frequency-to-time rate-of-change command is adjusted and the current command is changed with a readhesion control system. The control system is capable of accelerating and decelerating the vehicle with a torque corresponding to an inverter output current command which is generated basically without using any rotational frequency of induction motor, and further capable of accelerating and decelerating the vehicle with a torque corresponding to a value near the limit adhesion between the wheel and the rail under a condition of occurrence of slip/skid.
摘要翻译：控制系统被构造成使得基于频率 - 时间变化率指令来增加/减少逆变器输出频率命令，并且利用电流控制来控制频率 - 时间变化率指令系统。此外，还构造为使得频率 - 时间变化率指令被调整，并且当前命令随着再附着控制系统而改变。控制系统能够以基本上不使用感应电动机的任何转速来生成的逆变器输出电流指令的转矩加速和减速，并且还能够以对应于值的转矩来加速和减速车辆在发生滑移/滑动的情况下靠近车轮和轨道之间的极限粘附。

33. 发明授权

US5742493A Power conversion apparatus 失效
标题翻译：电力转换装置
公开(公告)号：US5742493A
公开(公告)日：1998-04-21
申请号：US705655
申请日：1996-08-30
申请人： Satoru Ito , Satoru Inarida , Kiyoshi Nakamura
发明人： Satoru Ito , Satoru Inarida , Kiyoshi Nakamura
IPC分类号： H02M7/219 , B60L3/00 , B60L9/28 , H02M5/458 , H02M7/12 , H02M7/48 , H02M7/483 , H02P27/06 , H02P27/08 , H02M5/45
CPC分类号： H02M7/487 , B60L3/0023 , B60L9/28 , H02M1/4233 , H02M5/4585 , B60L2200/26 , B60L2220/12
摘要： A power conversion apparatus has a PWM power converter coupled to an A.C. power supply on one side and to a D.C. load on the other side, a voltage controller for adjusting the D.C. output voltage from the converter, a power factor controller for adjusting the power factor on the A.C. side of the converter, a command generator for generating a PWM modulation factor and a phase signal in response to the voltage and an output from the power factor controller, and a PWM modulation unit for controlling the converter in response to these command signals. The power factor controller is controlled to reduce its power factor when a control parameter relating to the modulation factor of the converter approaches its limit value, and the power of the D.C. load is limited when a control parameter relating to the input power of the converter approaches its limit value, such that the power factor of the power converter is allowed to be reduced and the power of the D.C. load is limited respectively in each designated region, thereby preventing any overcurrent even if the power supply voltage fluctuates. As a result, continuous operation is maintained, making it possible to reduce the capacity of the converter required for generating the same output power over the conventional converter.
摘要翻译：功率转换装置具有一个PWM功率转换器，其耦合到一侧的AC电源和另一侧的DC负载，用于调整来自转换器的DC输出电压的电压控制器，用于调节功率因数的功率因数控制器在转换器的AC侧，用于响应于电压和来自功率因数控制器的输出而产生PWM调制因子和相位信号的命令发生器，以及用于响应于这些命令信号控制转换器的PWM调制单元。当与转换器的调制因子相关的控制参数接近其限制值时，功率因数控制器被控制以降低其功率因数，并且当与转换器的输入功率相关的控制参数接近时，直流负载的功率受到限制其限制值，使得功率转换器的功率因数被允许减小，并且在每个指定区域中分别限制DC负载的功率，从而即使电源电压波动也可以防止任何过电流。结果，维持连续运行，使得有可能降低与常规转换器相同的输出功率所需的转换器的容量。

34. 发明授权

US5677610A Control apparatus for electric vehicles 失效
标题翻译：电动车控制装置
公开(公告)号：US5677610A
公开(公告)日：1997-10-14
申请号：US519397
申请日：1995-08-25
申请人： Tokunosuke Tanamachi , Kiyoshi Nakamura , Masanori Kobayashi
发明人： Tokunosuke Tanamachi , Kiyoshi Nakamura , Masanori Kobayashi
IPC分类号： B60L3/10 , B60L9/18 , H02P27/06 , H02P5/34
CPC分类号： B60L3/10 , B60L2200/26 , B60L2220/12
摘要： A control apparatus for controlling an electric vehicle, electric car, rolling stock and electric locomotives, which ensures that an inverter output frequency command for its inverter will not depend on the rotor frequency of the induction motor, but controls the inverter output current using a constant current control system, thus preventing an overcurrent, and is capable of accelerating or decelerating the vehicle at a torque precisely corresponding to a current command. The inverter output frequency command is incremented or decremented in accordance with a frequency-to-time rate-of-change command which has been updated by the current control system. Since the inverter output frequency command is adapted basically not to depend on the rotor frequency of the induction motor, and since the output current of the inverter is controlled by the constant current control system, there are such advantages according to the invention that an overcurrent is not likely to occur, and the vehicle can be accelerated or decelerated at a torque precisely corresponding to the current command.
摘要翻译：一种用于控制电动车辆，电动汽车，机车车辆和电力机车的控制装置，其确保逆变器的逆变器输出频率指令不依赖于感应电动机的转子频率，而是使用常数控制逆变器输出电流电流控制系统，从而防止过电流，并且能够以与电流指令精确对应的转矩加速或减速车辆。逆变器输出频率指令根据由当前控制系统更新的频率 - 时间变化率指令递增或递减。由于逆变器输出频率指令基本上不依赖于感应电动机的转子频率，并且由于逆变器的输出电流由恒流控制系统控制，所以根据本发明，过电流是不可能发生，并且车辆可以以与当前指令精确对应的扭矩加速或减速。

35. 发明授权

US5620370A Blowing apparatus, suction panel therefor and straightening guide therefor 失效
标题翻译：吹气装置，吸力板及其矫正导轨
公开(公告)号：US5620370A
公开(公告)日：1997-04-15
申请号：US268980
申请日：1994-06-30
申请人： Yoshiyuki Umai , Yoshikatsu Nankaku , Keiichi Hasegawa , Yoshimi Iwamura , Katsuhisa Ootsuta , Kiyoshi Nakamura
发明人： Yoshiyuki Umai , Yoshikatsu Nankaku , Keiichi Hasegawa , Yoshimi Iwamura , Katsuhisa Ootsuta , Kiyoshi Nakamura
IPC分类号： F24F7/10 , F04D29/42 , F04D29/54 , F04D29/66 , F24F7/007
CPC分类号： F04D29/4213 , F04D29/545 , F04D29/663
摘要： A blowing apparatus includes a suction passage having a suction chamber enclosed by rigid body surfaces, suction ports opening toward the suction chamber for sucking air from outside, and a fan suction port serving as a suction port for a blower, the suction ports, the suction chamber, and the fan suction port being arranged in nonlinear form. In such blowing apparatus, a doughnut-like straightening guide is arranged on an opening edge on the suction chamber side of the fan suction port. The straightening guide has a projection toward the suction chamber, an appropriate thickness in the radial direction, and a guide passage matching the fan suction port in the middle thereof.
摘要翻译：吹风装置包括：吸入通道，具有由刚体体表面包围的吸入室，朝向吸入室开口的吸入口，用于从外部吸入空气，吸入口作为鼓风机的吸入口的风扇吸入口，吸入口，吸入口风扇吸入口以非线性形式布置。在这样的吹风装置中，在风扇吸入口的吸入室侧的开口边缘上设置有环状的矫直引导件。矫直引导件具有朝向吸入室的突起，在径向上具有适当的厚度，以及与其中部的风扇吸入口相匹配的引导通道。

36. 发明授权

US5155671A Power converter with current-type inverter 失效
标题翻译：电流转换器与电流型逆变器
公开(公告)号：US5155671A
公开(公告)日：1992-10-13
申请号：US490466
申请日：1990-03-08
申请人： Hiromi Inaba , Kiyoshi Nakamura , Sadao Hokari , Yoshio Sakai , Naoyuki Outi , Takeki Ando , Satoshi Fukuda
发明人： Hiromi Inaba , Kiyoshi Nakamura , Sadao Hokari , Yoshio Sakai , Naoyuki Outi , Takeki Ando , Satoshi Fukuda
IPC分类号： H02M5/458 , H02M7/48 , H02P27/06
CPC分类号： H02M5/4585
摘要： A power converter comprising a current-type inverter is disclosed, in which an output of a converter unit is applied as an input to the inverter unit through a DC reactor, and AC power is supplied to a load from the inverter unit. A ripple component of the DC input of the inverter unit is detected, and the switching elements of the inverter unit are controlled by modulation rate if they are to be subjected to PWM control, thus completing a sinusoidal waveform of the output of the inverter unit. Specifically, since the input to the inverter unit is allowed to contain a ripple, the DC reactor is reduced in size. The output of the inverter unit is a sinusoidal AC power containing no high harmonics and therefore the load is free of effects of high harmonics.
摘要翻译：公开了一种包括电流型逆变器的电力转换器，其中通过直流电抗器将转换器单元的输出作为输入施加到逆变器单元，并且将来自逆变器单元的负载提供给交流电力。检测逆变器单元的直流输入的纹波分量，并且如果要进行PWM控制，则逆变器单元的开关元件由调制率控制，从而完成逆变器单元的输出的正弦波形。具体地，由于允许逆变器单元的输入包含纹波，因此直流电抗器的尺寸减小。逆变器单元的输出是不包含高次谐波的正弦交流电，因此负载不受高次谐波的影响。

37. 发明授权

US4907784A Apparatus for successively fusing small particles of nonferrous metal 失效
标题翻译：用于连续熔合有色金属的小颗粒的装置
公开(公告)号：US4907784A
公开(公告)日：1990-03-13
申请号：US272116
申请日：1988-11-16
申请人： Kazuo Kusaka , Shigeo Suehiro , Noboru Tajiri , Kiyoshi Nakamura , Tsuyoshi Okimoto
发明人： Kazuo Kusaka , Shigeo Suehiro , Noboru Tajiri , Kiyoshi Nakamura , Tsuyoshi Okimoto
IPC分类号： C22B9/16 , C22B7/00 , C22B21/00
CPC分类号： C22B7/003 , C22B21/0092 , Y02P10/218 , Y10S266/901
摘要： An apparatus for fusing small articles of nonferrous metal comprises an molten metal chamber, for forming and containing molten metal, having burners for fusing a raw material such as ingot etc., and a fusing chamber disposed adjacent to the molten metal chamber for fusing small particles of the nonferrous metal. The molten metal discharged from the molten metal chamber is circulated through a swirl generation chamber and a suction passage and is introduced into a pump and discharged into to the molten metal chamber. The small particles of nonferrous metal are introduced into the upper side of a swirl generation chamber, in which a swirl stream is generated, mixed with the molten metal while dispersed in the molten metal and delivered to the molten metal chamber.
摘要翻译：用于熔化小型有色金属制品的装置包括用于形成和容纳熔融金属的熔融金属室，具有用于熔化诸如锭等的原料的燃烧器和邻近熔融金属室设置的定影室，用于熔化小颗粒的有色金属。从熔融金属室排出的熔融金属通过涡流发生室和吸入通道循环，并被引入泵中并排入熔融金属室。将有色金属的小颗粒引入到产生旋流的涡流发生室的上侧，与熔融金属混合，同时分散在熔融金属中并输送到熔融金属室。

38. 发明授权

US4723201A Control apparatus for pulse width modulation inverters 失效
标题翻译：脉宽调制逆变器控制装置
公开(公告)号：US4723201A
公开(公告)日：1988-02-02
申请号：US3024
申请日：1987-01-13
申请人： Tokunosuke Tanamachi , Kiyoshi Nakamura
发明人： Tokunosuke Tanamachi , Kiyoshi Nakamura
IPC分类号： H02M7/48 , H02P27/08 , H02M7/527
CPC分类号： H02P27/08 , H02M7/53873
摘要： In a PWM inverter, a first three pulse mode, in which three voltage pulses exist within 120.degree. in the electric angle of the inverter output voltage, is changed over to a single pulse mode, in which the pulse width is equal to 120.degree., through a second three pulse mode, which is composed of two voltage pulses on both sides outside the period of 120.degree. and a center voltage pulse therebetween.The jump of the output voltage and the phase deviation therein upon changeover between the three pulse mode and the single pulse mode is prevented by controlling the pulse width of the two side pulses and the intervals between the center pulse and the side pulses.
摘要翻译：在PWM逆变器中，在逆变器输出电压的电角度内在120度内存在三个电压脉冲的第一三脉冲模式转换为单脉冲模式，脉冲宽度等于120°，通过第二三脉冲模式，其由120度周围的两侧的两个电压脉冲和它们之间的中心电压脉冲组成。通过控制两侧脉冲的脉冲宽度和中心脉冲与侧脉冲之间的间隔来防止在三脉冲模式和单脉冲模式之间转换时输出电压的跳跃及其相位偏差。

39. 发明授权

US4454457A Power supply system for a linear motor 失效
标题翻译：线性电机的电源系统
公开(公告)号：US4454457A
公开(公告)日：1984-06-12
申请号：US388220
申请日：1982-06-14
申请人： Kiyoshi Nakamura , Masayoshi Isaka , Shigeyoshi Koike
发明人： Kiyoshi Nakamura , Masayoshi Isaka , Shigeyoshi Koike
IPC分类号： B60L13/03 , B60L15/00 , B60M3/00 , H02P25/06 , H02K41/02
CPC分类号： B60L15/005 , B60L2200/26 , Y02T10/645
摘要： In a linear motor composed of a propelling coil laid on continuously along a track and a field system mounted on a vehicle for driving it, the propelling coil of an enormous length is sectioned into a number of propelling coil units which are connected alternately to two sets of feeders by means of switches, the feeder sets being supplied with polyphase currents from different power converters, respectively. The propelling coil units are connected in series to one another without any interposed insulation and sectioned by a number of lead conductors so that every pair of the adjacent propelling coil units has a common coil portion shared by them and having a length not smaller than that of the vehicle. A pair of the polyphase lead conductors connected to each of the propelling coil units are connected, respectively, to going feeders and return feeders constituting the set of feeders through switches. Change-over of power supply between the adjacent propelling coil units is performed during a period in which the vehicle is running along the common coil section by closing and opening the associated switches and controlling power converters.
摘要翻译：在由沿着轨道连续铺设的推进线圈和安装在车辆上用于驱动它的现场系统组成的线性电动机中，将大量长度的推进线圈分成许多推进线圈单元，其交替地连接到两组的馈线通过开关分别供给来自不同功率转换器的多相电流。推进线圈单元彼此串联连接，没有任何插入的绝缘并由多个引线导体分段，使得每对相邻的推进线圈单元具有共同的共用线圈部分，并且具有不小于机动车。连接到每个推进线圈单元的一对多相引线导体分别通过开关连接到构成该馈线组的进给器和返回馈线。在相邻的推进线圈单元之间的电源的切换在通过关闭和打开相关联的开关并控制功率转换器的同时沿着公共线圈部分行驶的时段期间执行。

40. 发明授权

US4310492A Apparatus for making a single crystal 失效
标题翻译：用于制造单晶的装置
公开(公告)号：US4310492A
公开(公告)日：1982-01-12
申请号：US151877
申请日：1980-05-21
申请人： Masae Nakanishi , Kiyoshi Nakamura , Syozo Kawasaki
发明人： Masae Nakanishi , Kiyoshi Nakamura , Syozo Kawasaki
IPC分类号： C04B35/584 , C30B15/24 , C30B27/02 , C30B29/40 , H01L21/208 , C30B15/34 , C30B35/00
CPC分类号： C30B27/02 , C30B15/24 , Y10S117/90 , Y10T117/1036
摘要： An apparatus for making a single crystal which includes a sealed vessel, a crucible received in the sealed vessel to hold a molten liquid and a floating member having an opening for defining the cross sectional outline of a single crystal while being grown and floating on the molten liquid. The floating member is made from a sintered body consisting essentially of at least one of the oxides of yttrium and the lanthanum series elements, aluminum oxide, aluminum nitride and silicon nitride each in a prescribed amount.
摘要翻译：一种用于制造单晶的装置，其包括密封容器，容纳在密封容器中以保持熔融液体的坩埚和具有用于限定单晶的横截面轮廓的开口的浮动部件，同时生长并漂浮在熔融液体。浮动构件由基本上由钇和镧系元素的氧化物，氧化铝，氮化铝和氮化硅中的至少一种组成的烧结体制成，各自为规定量。

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