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    Permanent magnet type synchronous motor and air compressor
    2.
    发明授权
    Permanent magnet type synchronous motor and air compressor 失效
    永磁同步电机和空压机

    公开(公告)号：US06376958B1

    公开(公告)日：2002-04-23

    申请号：US09635216

    申请日：2000-08-10

    申请人： Haruo Koharagi ,  Tsukasa Taniguchi ,  Kouki Yamamoto ,  Satoshi Kikuchi ,  Miyoshi Takahashi ,  Haruo Miura ,  Yasuo Fukushima ,  Masaharu Senoh

    发明人： Haruo Koharagi ,  Tsukasa Taniguchi ,  Kouki Yamamoto ,  Satoshi Kikuchi ,  Miyoshi Takahashi ,  Haruo Miura ,  Yasuo Fukushima ,  Masaharu Senoh

    IPC分类号： H02K4730

    CPC分类号： H02K1/2733

    摘要： Provided are a super-high speed permanent magnet type synchronous motor which causes less loss in a rotor even though it is driven by an inverter adapted to be operated with a fundamental frequency around 1 kHz, and an air compressor. The air compressor having a super-high speed permanent magnet type synchronous motor which is composed of a stator in which armature windings are wound in a plurality of slots formed in a stator core, and a rotor including a shaft made of a conductive magnetic material, a conductive permanent magnet laid around the outer periphery of the shaft, and a reinforcing member made of carbon fibers and laid around the outer periphery of the permanent magnet, wherein a laminated electromagnetic steel sheet is interposed between the shaft and the permanent magnet, and the laminated electromagnetic steel sheet has a high tensile strength higher than 70 kg/mm2.

    摘要翻译： 提供了一种超高速永磁式同步电动机，即使由适于以大约1kHz的基本频率操作的逆变器驱动也可以减少转子损耗，以及空气压缩机。 具有超高速永久磁铁式同步电动机的空气压缩机由在定子铁心中形成的多个槽中缠绕有电枢绕组的定子和由导电性磁性材料构成的轴的转子构成， 绕轴的外周布置的导电性永久磁铁和由碳纤维制成的加强构件，该加强构件围绕永磁体的外周配置，其中层叠的电磁钢板插入在轴与永久磁铁之间， 层压电磁钢板具有高于70kg / mm2的高抗拉强度。

    Very high permanent magnet type electric rotating machine system
    3.
    发明授权
    Very high permanent magnet type electric rotating machine system 失效
    非常高的永磁式旋转电机系统

    公开(公告)号：US06441523B1

    公开(公告)日：2002-08-27

    申请号：US09654091

    申请日：2000-09-01

    申请人： Haruo Koharagi ,  Tsunehiro Endou ,  Tsukasa Taniguchi ,  Kouki Yamamoto ,  Satoshi Kikuchi ,  Miyoshi Takahashi ,  Haruo Miura ,  Yasuo Fukushima

    发明人： Haruo Koharagi ,  Tsunehiro Endou ,  Tsukasa Taniguchi ,  Kouki Yamamoto ,  Satoshi Kikuchi ,  Miyoshi Takahashi ,  Haruo Miura ,  Yasuo Fukushima

    IPC分类号： H02K127

    CPC分类号： H02P6/00 ,  H02K1/2733 ,  H02K21/14

    摘要： A very high speed permanent magnet type electric rotating machine, in which loss generated on a rotor is small to achieve high efficiency on an air generating source even when driven by an inverter operating at a fundamental frequency of at least several hundreds of Hz and in which a reactor is inserted between the inverter and a permanent magnet type synchronous motor, and content percentages of components of harmonic current supplied to the permanent magnet type synchronous motor are adjusted such that when a content percentage of a fundamental wave is 100%, a content percentage B of a seventh order component is at most 10% and a total content percentage is made equal to or less than a certain value so as to satisfy the relationship (A

    摘要翻译： 即使在以至少数百Hz的基频工作的逆变器驱动的情况下，转子上产生的损失小的空调机也能够在空气发生源上实现高效率的非常高速的永磁式旋转电机，其中 在逆变器和永久磁铁型同步电动机之间插入电抗器，调整供给到永久磁铁式同步电动机的谐波电流的成分的含有百分比，使得当基波的含量百分比为100％时，含量百分比 第七阶分量的B为至多10％，总含量百分比等于或小于某一值，以满足关系（A

    Magnetic bearing, rotating machine mounting the same, and method for driving rotating machine
    5.
    发明授权
    Magnetic bearing, rotating machine mounting the same, and method for driving rotating machine 有权
    磁轴承，旋转机安装相同，以及驱动旋转机器的方法

    公开(公告)号：US6111333A

    公开(公告)日：2000-08-29

    申请号：US261237

    申请日：1999-03-03

    申请人： Naohiko Takahashi ,  Tsunehiro Endo ,  Haruo Miura ,  Minoru Yoshihara ,  Yasuo Fukushima ,  Kazuki Takahashi

    发明人： Naohiko Takahashi ,  Tsunehiro Endo ,  Haruo Miura ,  Minoru Yoshihara ,  Yasuo Fukushima ,  Kazuki Takahashi

    IPC分类号： F16C32/04 ,  F16C39/06 ,  H02K7/09 ,  H02P6/08 ,  G05B1/02 ,  H02K11/00

    CPC分类号： H02P6/085 ,  F16C32/0453 ,  F16C32/0489 ,  H02K7/09 ,  F16C2360/42

    摘要： In a rotating machine with employment of a sensor-less DC brushless motor, a terminal voltage of a motor is corrected in a phase corrector by using a motor phase current signal. At this time, the terminal voltage is processed in an integrator and a comparator so as to be converted into an ON/OFF signal having a duty ratio of 1:1. Then, a rotation signal is produced based on an induced voltage which is generated by rotating a permanent magnet rotor, so that a rotation sensor is no longer required. On the other hand, an output derived from the phase corrector is entered as a 1-pulse/1-rotation output signal into a PLL circuit. The PLL circuit contains a phase comparator, a low-pass filter, an oscillator, and a counter. The PLL circuit frequency-divides the 1-pulse/1-rotation output signal. The sine wave data are stored into a ROM with respect to each of the frequency-divided signal positions. The unbalance vibrations of the magnetic bearing are controlled every frequency-divided signal.

    摘要翻译： 在使用无传感器的直流无刷电动机的旋转机器中，通过使用电动机相电流信号在相位校正器中校正电动机的端子电压。 此时，在积分器和比较器中对终端电压进行处理，以转换成占空比为1:1的ON / OFF信号。 然后，基于通过旋转永久磁铁转子而产生的感应电压产生旋转信号，从而不再需要旋转传感器。 另一方面，从相位校正器得到的输出作为1脉冲/ 1转输出信号输入到PLL电路中。 PLL电路包含一个相位比较器，一个低通滤波器，一个振荡器和一个计数器。 PLL电路对1脉冲/ 1转输出信号进行频率分频。 相对于每个分频信号位置，将正弦波数据存储到ROM中。 每个分频信号控制磁轴承的不平衡振动。

    Two-stage centrifugal compressor
    6.
    发明授权
    Two-stage centrifugal compressor 失效
    两级离心压缩机

    公开(公告)号：US06196809B1

    公开(公告)日：2001-03-06

    申请号：US09023686

    申请日：1998-02-13

    申请人： Kazuki Takahashi ,  Haruo Miura ,  Hideo Nishida ,  Naohiko Takahashi ,  Yasuo Fukushima

    发明人： Kazuki Takahashi ,  Haruo Miura ,  Hideo Nishida ,  Naohiko Takahashi ,  Yasuo Fukushima

    IPC分类号： F04B2300

    CPC分类号： F04D29/4206 ,  F04D25/16 ,  F04D29/5826

    摘要： A low pressure-side first-stage compressor impeller and a high pressure-side second-stage compressor impeller are mounted respectively on opposite ends of a rotation shaft. A rotor of an electric motor for driving the two impellers is formed at a central portion of the rotation shaft. A stator of the motor is held by a motor casing. The motor casing, a first-stage compressor casing, which cooperates with the first-stage compressor impeller to form a first-stage compressor, and a second-stage compressor casing, which cooperates with the second-stage compressor impeller to form a second-stage compressor, are cast into an integral construction. This integral casing is further formed integrally with an intermediate cooler, disposed downstream of the first-stage compressor, and a discharge cooler disposed downstream of the second-stage compressor. The intermediate cooler and the discharge cooler are disposed below the motor casing in generally parallel relation to the rotation shaft, and the main portions of the two-stage centrifugal compressor are combined into a compact, generally rectangular parallelepiped configuration.

    摘要翻译： 低压侧的第一级压缩机叶轮和高压侧的后级的压缩机叶轮分别安装在旋转轴的两端。 用于驱动两个叶轮的电动机的转子形成在旋转轴的中心部分。 马达的定子由马达壳体保持。 电动机壳体，与第一级压缩机叶轮配合形成第一级压缩机的第一级压缩机壳体和与第二级压缩机叶轮配合形成第二级压缩机叶轮的第二级压缩机壳体， 阶段压缩机，铸造成一体化结构。 该一体式外壳进一步与布置在第一级压缩机下游的中间冷却器一体地形成，并且设置在第二级压缩机的下游。 中间冷却器和排放冷却器以大致平行于旋转轴的方式设置在电动机壳体下方，并且两级离心压缩机的主要部分组合成紧凑的大致长方体形状。

    Magnetic bearing control method and apparatus
    7.
    发明授权
    Magnetic bearing control method and apparatus 失效
    磁轴承控制方法及装置

    公开(公告)号：US5256952A

    公开(公告)日：1993-10-26

    申请号：US889997

    申请日：1992-05-29

    申请人： Mitsuho Yoneyama ,  Osami Matsushita ,  Naohiko Takahashi ,  Yasuo Fukushima

    发明人： Mitsuho Yoneyama ,  Osami Matsushita ,  Naohiko Takahashi ,  Yasuo Fukushima

    IPC分类号： F16C32/04 ,  F16C39/06 ,  F16F15/18 ,  G05B5/01 ,  G05B21/02 ,  H02K7/09

    CPC分类号： F16F15/18 ,  F16C32/0451 ,  G05B21/02 ,  G05B5/01

    摘要： A control method and apparatus for suppressing the vibration components of a magnetic bearing. According to this invention, a vibration wave is sampled at pulses synchronized with the rotation of a rotor, the vibration waveform sampled values at each revolution are averaged, and only the frequency components synchronized with the rotation frequency of the rotor are extracted from the vibration waveform. In addition, the extracted components are subjected to Fourier transform, processed in a frequency region and subjected to Fourier reverse transform. The sequence of these signal processes produces a signal, and the vibration components are suppressed by this signal.

    摘要翻译： 一种用于抑制磁轴承的振动分量的控制方法和装置。 根据本发明，以与转子旋转同步的脉冲对振动波进行采样，将每一转的振动波形采样值平均化，并且只有与转子旋转频率同步的频率分量从振动波形中提取出来 。 另外，将所提取的分量进行傅里叶变换，在频域进行处理，进行傅立叶逆变换。 这些信号处理的顺序产生信号，并且该信号抑制振动分量。

    High-speed rotor and controller for controlling magnetic bearings used therefor
    9.
    发明授权
    High-speed rotor and controller for controlling magnetic bearings used therefor 失效
    用于控制用于其的磁性轴承的高速转子和控制器

    公开(公告)号：US5576587A

    公开(公告)日：1996-11-19

    申请号：US404742

    申请日：1995-03-15

    申请人： Naohiko Takahashi ,  Minoru Hiroshima ,  Yasuo Fukushima

    发明人： Naohiko Takahashi ,  Minoru Hiroshima ,  Yasuo Fukushima

    IPC分类号： F16C32/04 ,  F16C39/06 ,  H02K7/09

    CPC分类号： F16C32/0453

    摘要： Active magnetic bearings supporting a rotor operated at high speeds is controlled by a controller. Tracking filters provided in the controller pick up forward vibration components in synchronism with the rotational speeds from the displacement signals of the rotor, and a mode separating circuit provided in a mode gain controller takes out displacements of the 3rd and 4th modes. Then, a gain controller provided in the mode gain controller determines suitable gains for the separated displacement signals. A mode synthesizing circuit provided in the mode gain controller synthesizes a controlled variable for each of the bearings from the control signals that are processed for the respective modes. By adding the control variable to the respective bearings, the vibration amplitude is suppressed in critical speed zones of high orders, and the rotor is stably operated up to a high-speed range.

    摘要翻译： 支持高速运转的转子的主动磁轴承由控制器控制。 控制器中提供的跟踪滤波器与来自转子的位移信号的转速同步地拾取振动分量，并且模式增益控制器中提供的模式分离电路取出第3和第4模式的位移。 然后，设置在模式增益控制器中的增益控制器为分离的位移信号确定合适的增益。 设置在模式增益控制器中的模式合成电路根据针对各个模式处理的控制信号来合成每个轴承的受控变量。 通过向相应的轴承添加控制变量，在高阶临界转速区域中抑制振动振幅，并且转子稳定地操作到高速范围。

    Reciprocating compressor
    10.
    发明申请
    Reciprocating compressor 失效
    往复式压缩机

    公开(公告)号：US20050260080A1

    公开(公告)日：2005-11-24

    申请号：US11041424

    申请日：2005-01-25

    申请人： Haruo Miura ,  Shigeru Arai ,  Youichirou Fukai ,  Yasuo Fukushima

    发明人： Haruo Miura ,  Shigeru Arai ,  Youichirou Fukai ,  Yasuo Fukushima

    IPC分类号： F04B39/00 ,  F04B5/02 ,  F04B25/00 ,  F04B27/02 ,  F04B27/04 ,  F04B27/053 ,  F04B41/06 ,  F04B23/00 ,  F04B3/00 ,  F04B5/00 ,  F04B53/00 ,  F25J3/00

    CPC分类号： F04B25/00 ,  F04B5/02 ,  F04B27/02

    摘要： A reciprocating compressor includes: a low-pressure stage compression part for compressing low-pressure working gas supplied from a supply source; two high-pressure stage compression parts for compressing the working gas compressed by the low-pressure stage compression part at two stages; and a crank mechanism for driving the low-pressure stage compression part and the high-pressure stage compression parts. The two high-pressure stage compression parts each have a plunger and a cylinder and are arranged on both sides of the crank mechanism in such a way as to extend coaxially opposite to each other. The low-pressure stage compression part has a piston and a cylinder and is located in the middle of the two high-pressure stage compression parts. The crank mechanism, the low-pressure stage compression part, and the two high-pressure stage compression parts are substantially located in the same plane.

    摘要翻译： 往复式压缩机包括：低压级压缩部件，用于压缩从供给源供给的低压工作气体; 两个高压级压缩部件，用于压缩由低压级压缩部件压缩的工作气体两级; 以及用于驱动低压级压缩部和高压级压缩部的曲柄机构。 两个高压级压缩部分各自具有柱塞和气缸，并且布置在曲柄机构的两侧，以便彼此同轴地相对延伸。 低压级压缩部件具有活塞和气缸，位于两个高压级压缩部件的中间。 曲柄机构，低压级压缩部和两个高压级压缩部基本上位于同一平面内。