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    • 102. 发明授权
    • Input overcurrent suppression circuit
    • 输入过流抑制电路
    • US5726849A
    • 1998-03-10
    • US739216
    • 1996-10-29
    • Mitsuo Nakamura
    • Mitsuo Nakamura
    • H02H9/02H02H7/125H02H9/00H02J1/10H02M3/28G05F1/573
    • H02H9/001H02J1/102H02H7/1255
    • An input overcurent suppression circuit is used for a DC-DC converter in uninterruptible power supply source and includes a plurality of DC-DC converters, an AC-DC converter and a detecting means for detecting an input current to the DC-DC converters. In the plural DC-DC converters, a parallel circuit constituted by a resistor element and a switching element is connected in series with an input circuit to break the circuit in response to an overcurrent or over heating. When the power source circuit is closed, a surge current-preventing circuit prevents the surge current by turning a switching element off for a predetermined period of time. The AC-DC converter feeds current to at least two or more DC-DC converters among the plurality of DC-DC converters. When the detecting means has detected an overcurrent, the switching element is turned off to turn off the resistor element connected in parallel with the switching element, to thereby suppress the overcurrent flowing into the AC-DC converter.
    • 输入过压抑制电路用于不间断电源中的DC-DC转换器,并且包括多个DC-DC转换器,AC-DC转换器和用于检测对DC-DC转换器的输入电流的检测装置。 在多个DC-DC转换器中,由电阻元件和开关元件构成的并联电路与输入电路串联连接,以响应于过电流或过热而断开电路。 当电源电路闭合时,浪涌电流防止电路通过使开关元件断开预定的时间来防止浪涌电流。 AC-DC转换器将电流馈送到多个DC-DC转换器中的至少两个或更多个DC-DC转换器。 当检测装置检测到过电流时,开关元件被断开以关闭与开关元件并联连接的电阻元件,从而抑制流入AC-DC转换器的过电流。
    • 103. 发明授权
    • Balance type scroll fluid machine
    • 平衡式涡旋流体机
    • US5624247A
    • 1997-04-29
    • US491191
    • 1995-06-15
    • Mitsuo Nakamura
    • Mitsuo Nakamura
    • F04C18/02F04C23/00F01C1/04
    • F04C23/001F04C18/0215F04C18/0223F04C18/0253
    • Both ends of a circling scroll are supported by a pin crank and the eccentric shaft of the circling scroll, thus assuring a stable circling or oscillating motion of the scroll. This in turn allows the scroll tooth length to be elongated, leading to an increase in the capacity of the fluid machine. Because the eccentric shaft and the pin crank are fitted into the center boss, the pin crank can work as a shaft that supports the left end of the circling scroll. The provision of the boss allows a radial load acting on the scroll tooth to be borne at the load position, thus shortening the shaft and reducing the bearing. Because the pin crank can be mounted to the boss, a two-block parallel arrangement and two-stage arrangement can be implemented easily. Further, the construction in which the pin crank is used as a left-end supporting bearing contributes to reducing the manufacturing cost of the apparatus.
    • 旋转涡卷的两端由一个针脚和圆盘形的涡卷的偏心轴支撑,从而确保了涡卷的稳定的盘旋或摆动运动。 这又允许涡旋齿长度增长,导致流体机器的容量增加。 由于偏心轴和销脚曲柄被装配到中心凸台中,所以曲柄可以作为支撑盘旋的左端的轴工作。 凸台的设置允许作用在涡旋齿上的径向载荷承载在载荷位置,从而缩短轴并减小轴承。 由于针脚可以安装到凸台上,所以可以容易地实现两块平行布置和两级布置。 此外,将销曲柄用作左端支撑轴承的结构有助于降低装置的制造成本。
    • 106. 发明授权
    • Multi-layer flat cable electrical connector and its termination method
    • 多层扁平电缆电连接器及其端接方法
    • US4744773A
    • 1988-05-17
    • US75740
    • 1987-07-20
    • Mitsuo NakamuraKeiji Souma
    • Mitsuo NakamuraKeiji Souma
    • H01R4/24H01R43/00
    • H01R12/675
    • A multi-layer flat cable electrical connector for terminating flat cables in a plurality of layers, which comprises a plurality of contacts having a contacting portion for contact with a contact of the mating connector and a press-fit portion for connection with a conductor of said flat cable; an insulating housing for supporting said contacts so that said press-fit portions may project upward from its top surface in at least a pair of rows; a cable retainer with a retention channel for holding the end portions of said flat cables laminated one upon another, a plurality of termination grooves for receiving each conductor of said flat cable on either side, and a plurality of recesses for receiving said press-fit portions projecting from said housing, said cable retainer adapted to join to said insulating housing to complete said multi-layer flat cable electrical connector.
    • 一种用于端接多层扁平电缆的多层扁平电缆电连接器,其包括多个触头,该触头具有用于与配合连接器的触头接触的接触部分和用于与所述连接器的导体连接的压配部分 扁平电缆; 用于支撑所述触点的绝缘壳体,使得所述压配合部分可以至少一对排从其顶表面向上突出; 具有用于保持所述扁平电缆的端部彼此层叠的保持通道的电缆保持器,用于接收任一侧的所述扁平电缆的每个导体的多个终止槽和用于接收所述压配合部分的多个凹部 从所述壳体突出,所述电缆保持器适于连接到所述绝缘壳体以完成所述多层扁平电缆电连接器。
    • 109. 发明授权
    • Radiographic intensifying screen
    • 射线增强屏
    • US4472635A
    • 1984-09-18
    • US426135
    • 1982-09-28
    • Kazuto YokotaMitsuo Nakamura
    • Kazuto YokotaMitsuo Nakamura
    • G03C5/17G21K4/00G01J1/58
    • G21K4/00
    • A radiographic intensifying screen having improved modulation transfer function and/or sensitivity. The radiographic intensifying screen of the present invention comprises a support, a phosphor layer formed on the support, a protective film formed on the phosphor layer, wherein the phosphor layer includes a small phosphor particles layer at its support side consisting essentially of small phosphor particles with an average grain size of about 4 .mu.m or less and a binding agent; and a mixed large and small phosphor particles layer at its protective film side consisting essentially of large phosphor particles with an average grain size ranging from about 7 to 20 .mu.m, small phosphor particles present in the interstices of the large phosphor particles and with an average grain size of about 4 .mu.m or less and a binding agent.
    • 一种具有改进的调制传递函数和/或灵敏度的射线照相增强屏。 本发明的射线照相增强屏幕包括支撑体,形成在支撑体上的荧光体层,形成在荧光体层上的保护膜,其中荧光体层在其支撑侧包括小的荧光体颗粒层,其基本上由具有 平均粒径约4μm以下,粘合剂; 并且在其保护膜侧的混合的大的和小的荧光体颗粒层基本上由平均粒度为约7至20μm的大的荧光体颗粒组成,小的荧光体颗粒存在于大的荧光体颗粒的空隙中并且具有平均 约4μm以下的粒径和粘合剂。
    • 110. 发明授权
    • Air-fuel ratio control system
    • 空燃比控制系统
    • US4465048A
    • 1984-08-14
    • US333223
    • 1981-12-21
    • Takuro MorozumiMitsuo NakamuraMasaaki OhgamiRyuji Kataoka
    • Takuro MorozumiMitsuo NakamuraMasaaki OhgamiRyuji Kataoka
    • F02D35/00F02D41/14F02D41/34F02M7/24
    • F02D41/345F02D35/0061F02D41/1408F02D41/1474Y02T10/44
    • An air-fuel ratio control system for an internal combustion engine comprises an induction passage, a carburetor, an on-off type electromagnetic valve for correcting the air-fuel ratio of the air-fuel mixture supplied to the carburetor, an O.sub.2 -sensor for detecting oxygen concentration of exhaust gases, and a feedback control circuit responsive to the output of the O.sub.2 -sensor for producing pulses for driving said electromagnetic valve for correcting the air-fuel ratio.An engine speed detecting circuit is provided for producing an output signal which varies with the engine speed; and a frequency changing circuit is provided to be responsive to the output signal of the engine speed detecting for changing the frequency of the pulses whereby the electromagnetic valve may be prevented from resonating with the vibration of the engine and with the pulsations of induced air.
    • 用于内燃机的空燃比控制系统包括:进气通道,化油器,用于校正供给到化油器的空气燃料混合物的空燃比的开关型电磁阀;用于 检测废气的氧浓度,以及响应于所述O2传感器的输出的反馈控制电路,用于产生用于驱动所述电磁阀的脉冲以校正所述空燃比。 发动机转速检测电路用于产生随发动机转速而变化的输出信号; 并且提供频率改变电路以响应于用于改变脉冲频率的发动机转速检测的输出信号,从而可以防止电磁阀与发动机的振动和感应空气的脉动共振。