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35 条记录 (耗时 0.022 秒)

    Screw compressor
    1.
    发明授权
    Screw compressor 失效
    螺杆压缩机

    公开(公告)号：US5051077A

    公开(公告)日：1991-09-24

    申请号：US446292

    申请日：1989-12-05

    申请人： Kiyoshi Yanagisawa ,  Mitsuru Maeda ,  Yoshiyuki Maruta ,  Toshitsugu Sase

    发明人： Kiyoshi Yanagisawa ,  Mitsuru Maeda ,  Yoshiyuki Maruta ,  Toshitsugu Sase

    IPC分类号： F04C18/16 ,  F04C29/12

    CPC分类号： F04C29/12 ,  F04C18/16

    摘要： The present invention is drawn to a screw compressor having a wide operating range with respect to flow rate and pressure ratio, wherein a discharge opening portion of a casing is provided with a generally tapered notch portion so that compressed gas is gradually discharged from a certain fixed point where a volume ratio of one groove defined by rotors and the casing is smaller than an inherent built-in volume ratio. Since the present invention is arranged in the above-mentioned manner, the flow of the gas at the discharge opening portion is reduced by the notch portion which is readily formed. Thereby the variation range of the pressure (the amplitude of pulsation of the pressure) is decreased and the noise level is lowered. Further, a loss of pressure resulting from the rapid flow of the gas is restricted to thereby widen a range of preferable performance of the compressor.

    Signal Processing Device and Method
    3.
    发明申请
    Signal Processing Device and Method 有权
    信号处理装置及方法

    公开(公告)号：US20080159367A1

    公开(公告)日：2008-07-03

    申请号：US11993259

    申请日：2006-06-20

    申请人： Kiyoshi Yanagisawa ,  Noriaki Matsuno

    发明人： Kiyoshi Yanagisawa ,  Noriaki Matsuno

    IPC分类号： H04B17/00 ,  H04Q1/20

    CPC分类号： H04L27/368 ,  H04B1/0475 ,  H04L1/24 ,  H04L1/244

    摘要： A test signal, the amplitudes of which are equal in the positive and negative directions, is generated and supplied to a signal processing circuit that performs a frequency conversion. Signals outputted from the signal processing circuit are detected to provide detected signals, which comprise a detected positive signal corresponding to a positive signal of the test signal and a detected negative signal corresponding to a negative signal of the test signal. The level of the detected positive signal is compared with the level of the detected negative signal to output a comparison result that indicates which level is higher. Additionally, an offset correction signal, which causes the level difference between the detected positive signal and the detected negative signal to be within a predetermined range of tolerance, is generated based on the comparison result. Then, an offset correction of the test signal and an externally supplied modulated signal is performed in accordance with the offset correction signal.

    摘要翻译： 其正弦和负方向的幅度相等的测试信号被产生并提供给进行频率转换的信号处理电路。 检测从信号处理电路输出的信号，以提供检测信号，该检测信号包括对应于测试信号的正信号的检测到的正信号和对应于测试信号的负信号的检测到的负信号。 将检测到的正信号的电平与检测到的负信号的电平进行比较，以输出指示哪个电平较高的比较结果。 另外，基于该比较结果，产生使检测出的正信号和检测到的负信号之间的电平差处于预定的容差范围内的偏移校正信号。 然后，根据偏移校正信号执行测试信号和外部提供的调制信号的偏移校正。

    Screw rotor and method of generating tooth profile therefor
    5.
    发明授权
    Screw rotor and method of generating tooth profile therefor 失效
    螺旋转子及其齿形生成方法

    公开(公告)号：US5800151A

    公开(公告)日：1998-09-01

    申请号：US922553

    申请日：1997-09-03

    申请人： Takeshi Kawamura ,  Kiyoshi Yanagisawa ,  Shigeyoshi Nagata

    发明人： Takeshi Kawamura ,  Kiyoshi Yanagisawa ,  Shigeyoshi Nagata

    IPC分类号： F01D1/38 ,  F01C1/08 ,  F04C18/16 ,  F04C25/02 ,  F04C29/00 ,  F01C1/16

    CPC分类号： F01C1/084 ,  F05B2200/261 ,  Y10T29/49242

    摘要： The transverse tooth profile of a screw rotor which meshes with a companion screw rotor is defined by a tooth root circular arc, an outer circumferential circular arc, and two curves interconnecting the tooth root circular arc and the outer circumferential circular arc. One of the curves is defined by a trochoid curve generated by a point on an outer circumferential surface of the companion screw rotor. Alternatively, the curve may comprise two curve segments, and one of the two curve segments comprising a tooth tip arc which is defined as an arc having a radius of curvature equal to or smaller than the difference between a radius of curvature of the outer circumferential circular arc and a radius of a pitch circle of the tooth profile, and the other of the two curve segments comprising a curve connected to the tooth root circular arc and determined by a curve generated by the tooth tip arc of the companion screw rotor. The other curve is defined by determining a curve which defines an imaginary rack and thereafter producing a tooth profile curve generated by the imaginary rack.

    摘要翻译： 与配对螺杆转子啮合的螺杆转子的横向齿廓由齿根圆弧，外周圆弧和将牙根圆弧与外周圆弧相互连接的两条曲线限定。 曲线中的一条由伴随螺旋转子的外圆周表面上的点产生的次摆线​​定义。 或者，曲线可以包括两个曲线段，并且两个曲线段中的一个包括齿顶弧形，其被定义为具有等于或小于外周圆周的曲率半径之间的差的弧的弧形 圆弧和齿廓的节圆的半径，并且两个曲线段中的另一个包括连接到齿根圆弧的曲线，并且由伴随螺旋转子的齿顶弧产生的曲线确定。 另一条曲线是通过确定一条曲线来定义的，该曲线限定一个虚拟齿条，然后产生由虚架产生的齿形曲线。

    Bearing lubricating apparatus for rotary machine
    6.
    发明授权
    Bearing lubricating apparatus for rotary machine 失效
    旋转机轴承润滑装置

    公开(公告)号：US5558180A

    公开(公告)日：1996-09-24

    申请号：US421152

    申请日：1995-04-10

    申请人： Kiyoshi Yanagisawa

    发明人： Kiyoshi Yanagisawa

    IPC分类号： F16N7/24 ,  F16C33/66 ,  F16N7/36 ,  F01M9/06

    CPC分类号： F16H57/0469 ,  F16C19/54 ,  F16C33/6659 ,  F16N7/36

    摘要： A bearing lubricating apparatus for a rotary machine has a rotary shaft rotatably supported by a rolling bearing, and an oil receiving portion which receives lubricating oil picked up by a pick-up member. The oil in the oil receiving portion is sucked by a suction nozzle and is sent to interior of the rotary shaft through a first passage. Then, the oil flows back through a second passage into the bearing. Oil supply nozzles are formed in the rotary shaft so that the oil is supplied to the bearing by a pumping action of the oil supply nozzles when the rotary shaft rotates.

    摘要翻译： 用于旋转机械的轴承润滑装置具有由滚动轴承可旋转地支撑的旋转轴，以及接收由拾取构件拾取的润滑油的油接收部。 油接收部分中的油通过吸嘴吸入，并通过第一通道被送到旋转轴的内部。 然后，油通过第二通道回流到轴承中。 供油喷嘴形成在旋转轴中，使得当旋转轴旋转时，油通过供油喷嘴的泵送作用被供应到轴承。

    SIGNAL PROCESSING APPARATUS AND SIGNAL PROCESSING METHOD
    8.
    发明申请
    SIGNAL PROCESSING APPARATUS AND SIGNAL PROCESSING METHOD 有权
    信号处理装置和信号处理方法

    公开(公告)号：US20100198540A1

    公开(公告)日：2010-08-05

    申请号：US12668626

    申请日：2008-07-09

    申请人： Kiyoshi Yanagisawa ,  Noriaki Matsuno

    发明人： Kiyoshi Yanagisawa ,  Noriaki Matsuno

    IPC分类号： G06F19/00 ,  G01R29/00

    CPC分类号： H04L27/364 ,  H04L25/06

    摘要： An apparatus includes a test signal generation unit supplying test signals to an orthogonal modulator and a control unit that based on a result of decision by comparison and decision of detection results of a detector detecting envelopes of modulated signals output from the orthogonal modulator responsive to the test signals, derives adjustment values and a compensation value. An estimation means estimates a DC offset and an IQ mismatch of the orthogonal modulator, based on the derived compensation value. The test signals includes a first set including a first test signal (I1, Q1) and a second test signal (I2, Q2) having a predetermined relationship with the first test signal, and a second set of which in-phase and quadrature components have predetermined relationships respectively with in-phase and quadrature components of the first set.

    摘要翻译： 一种装置，包括：测试信号生成单元，向正交调制器提供测试信号;以及控制单元，其基于通过比较判定结果判断结果，并且响应于该测试，检测器检测从正交调制器输出的调制信号的包络检测结果 信号，导出调整值和补偿值。 估计装置基于导出的补偿值估计正交调制器的DC偏移和IQ失配。 测试信号包括第一组，其包括与第一测试信号具有预定关系的第一测试信号（I1，Q1）和第二测试信号（I2，Q2），以及第二组，其中同相和正交分量具有 分别与第一组的同相和正交分量的预定关系。

    SIGNAL PROCESSING CIRCUIT AND SIGNAL PROCESSING METHOD
    9.
    发明申请
    SIGNAL PROCESSING CIRCUIT AND SIGNAL PROCESSING METHOD 有权
    信号处理电路和信号处理方法

    公开(公告)号：US20100195706A1

    公开(公告)日：2010-08-05

    申请号：US12376415

    申请日：2007-07-11

    申请人： Kiyoshi Yanagisawa ,  Noriaki Matsuno

    发明人： Kiyoshi Yanagisawa ,  Noriaki Matsuno

    IPC分类号： H04B17/00

    CPC分类号： H04L27/364 ,  H04L27/2627 ,  H04L27/2647

    摘要： A signal processing circuit for compensating for an I/Q amplitude mismatch in which the amplitudes of I- and Q-components of output signals of a quadrature modulator are unequal to or for compensating for an I/Q phase mismatch in which the phase difference between the I- and the Q-components of output signals of the quadrature modulator deviates from 90 degrees. The signal processing circuit comprises an I/Q mismatch compensating part that corrects the amplitude or phase of an input signal based on the compensation amount for compensating for an I/Q amplitude mismatch or an I/Q phase mismatch and that inputs the corrected signal into a quadrature modulator; a test signal generating part that sequentially generates and inputs two sets of combined I- and Q-components of a test signal, which is an AC signal, to the I/O mismatch compensating part; a detector that determines an amplitude of the envelope of an output signal of the quadrature modulator; a filter that passes those ones of output signals of the detector which have frequencies equal to or lower than a cutoff frequency; and a control part that derives an amplitude or phase compensation amount of the I/Q mismatch compensating part such that the output values of the filter at the time of generating the two respective sets of test signals are equal to each other, the control part then inputting the derived amplitude or phase compensation amount into the I/Q mismatch compensating part.

    摘要翻译： 一种用于补偿I / Q幅度失配的信号处理电路，其中正交调制器的输出信号的I分量和Q分量的幅度不等于或用于补偿I / Q相位失配，其中， 正交调制器的输出信号的I分量和Q分量偏离90度。 信号处理电路包括：I / Q失配补偿部，其基于用于补偿I / Q幅度失配或I / Q相位失配的补偿量来校正输入信号的幅度或相位，并将校正后的信号输入 正交调制器 一个测试信号产生部分，其顺序地产生并输入作为AC信号的测试信号的组合I和Q分量的两组到I / O失配补偿部分; 确定正交调制器的输出信号的包络的幅度的检测器; 滤波器，其通过具有等于或低于截止频率的频率的检测器的输出信号的滤波器; 以及控制部分，其导出I / Q失配补偿部分的幅度或相位补偿量，使得在产生两组相应的测试信号时滤波器的输出值彼此相等，然后控制部分 将导出的幅度或相位补偿量输入到I / Q失配补偿部分。