Induction motor control system
    31.
    发明授权
    Induction motor control system 失效
    感应电动机控制系统

    公开(公告)号:US5387855A

    公开(公告)日:1995-02-07

    申请号:US42405

    申请日:1993-04-02

    IPC分类号: H02P21/00 H02P5/40

    CPC分类号: H02P21/00

    摘要: In order to carry out commercial synchronous exchange for disconnecting an induction motor from its driving power supply and connecting it to a variable frequency power supply, or commercial synchronous switching for disconnecting the induction motor from the variable frequency power supply and connecting it to a commercial power supply, without any accompanying adverse shock, an induction-motor vector control technique is utilized. A phase-locked loop (PLL) is formed to detect the difference in phase between the output voltage from the variable frequency power supply or the magnetic flux phase of the induction motor on the one hand, and the phase of the power supply voltage on the other, so that the difference in phase thus detected can be maintained at a predetermined value.

    摘要翻译: 为了进行用于将感应电动机与其驱动电源断开并将其连接到可变频率电源的商业同步交换,或用于将感应电动机与变频电源断开并将其连接到商业电力的商业同步开关 供应,没有任何伴随的不利冲击,使用感应电动机矢量控制技术。 形成锁相环(PLL)以一方面检测来自变频电源的输出电压或感应电动机的磁通相位之间的相位差,以及电源电压的相位 另一方面,使得如此检测的相位差可以保持在预定值。

    Method of forming T-shaped electrode
    32.
    发明授权
    Method of forming T-shaped electrode 失效
    形成T型电极的方法

    公开(公告)号:US5334542A

    公开(公告)日:1994-08-02

    申请号:US978280

    申请日:1992-11-18

    摘要: A lower mask layer and a first resist layer are formed on a substrate. The first resister is exposed with the use of an exposure mask having a phase shifter. A part of the first resist layer corresponding to the edge of the phase shifter becomes an unexposed part so that an aperture in slit is formed in the first resist layer by developing. The first mask layer is etched through said first resist layer to form an aperture for forming a gate electrode. A second resist layer as an upper mask layer is formed over the lower mask layer. The second resist layer is exposed with the use of the same exposure mask, and is then developed. By setting the exposure strength to a value lower than an exposure strength for exposure to the first resist layer, a wider aperture is formed in the second resist layer. With the use of the lower mask layer having the narrower aperture and the upper mask layer having the wider upper mask layer, a T-shape electrode is formed.

    摘要翻译: 在基板上形成下掩模层和第一抗蚀剂层。 使用具有移相器的曝光掩模来曝光第一电阻。 对应于移相器的边缘的第一抗蚀剂层的一部分变成未曝光部分,使得通过显影在第一抗蚀剂层中形成狭缝中的孔。 通过所述第一抗蚀剂层蚀刻第一掩模层以形成用于形成栅电极的孔。 在下掩模层上形成作为上掩模层的第二抗蚀剂层。 使用相同的曝光掩模曝光第二抗蚀剂层,然后显影。 通过将曝光强度设定为低于暴露于第一抗蚀剂层的曝光强度的值,在第二抗蚀剂层中形成较宽的孔。 通过使用具有较窄孔径的下掩模层和具有较宽上掩模层的上掩模层,形成T形电极。

    Induction motor control system
    33.
    发明授权
    Induction motor control system 失效
    感应电动机控制系统

    公开(公告)号:US5212438A

    公开(公告)日:1993-05-18

    申请号:US873711

    申请日:1992-04-22

    IPC分类号: H02P21/00

    CPC分类号: H02P21/00

    摘要: In order to carry out commercial synchronous exchange for disconnecting an induction motor from its driving power supply and connecting it to a variable frequency power supply or commercial synchronous switching for disconnecting the induction motor from the variable frequency power supply and connecting it to a commercial power supply without any accompanying adverse shock, an induction-motor vector control technique is utilized and furthermore, a phase-locked loop (PLL) is formed to detect the difference in phase between the phase of the output voltage from the variable frequency power supply or the magnetic flux phase of the induction motor on the one hand, and the phase of the voltage of the power supply on the other, so that the difference in phase thus detected can be maintained at a predetermined value.

    摘要翻译: 为了进行商业同步交换,以将感应电动机与其驱动电源断开并将其连接到变频电源或商用同步开关,用于将感应电动机与变频电源断开并将其连接到商用电源 没有任何伴随的不利冲击,利用感应电动机矢量控制技术,此外,形成锁相环(PLL)以检测来自可变频率电源或磁场的输出电压的相位之间的相位差 一方面是感应电动机的通量相位,另一方面是电源电压的相位,使得这样检测的相位差可以保持在预定值。

    Tracking servo system for magnetic recording and reproducing apparatus
using flexible magnetic disk
    35.
    发明授权
    Tracking servo system for magnetic recording and reproducing apparatus using flexible magnetic disk 失效
    用于使用磁性磁盘的磁记录和再现装置的跟踪伺服系统

    公开(公告)号:US4551777A

    公开(公告)日:1985-11-05

    申请号:US407080

    申请日:1982-08-11

    IPC分类号: G11B21/10 G11B5/55 G11B5/596

    CPC分类号: G11B5/5521 G11B5/59633

    摘要: A tracking servo system for a magnetic recording and reproducing apparatus uses a flexible magnetic disk having thereon at least first, second and third tracks each of which includes a data track portion and a pair of servo track portions located on both sides of the data track portion. Tracking signals having different frequencies are recorded on the first, second and third servo track pairs. Servo and data heads are formed in a unitary structure. When the data head records an information signal on the second data track portion or reads out the recorded information signal therefrom, the servo head reads out the tracking signals recorded on the first and third servo track portions.

    摘要翻译: 用于磁记录和再现装置的跟踪伺服系统使用其上具有至少第一,第二和第三磁道的柔性磁盘,每个磁道包括数据磁道部分和位于数据磁道部分两侧的一对伺服磁道部分 。 具有不同频率的跟踪信号被记录在第一,第二和第三伺服轨道对上。 伺服和数据头形成为一体的结构。 当数据头在第二数据轨道部分记录信息信号或从其读出记录的信息信号时,伺服头读出记录在第一和第三伺服磁道部分上的跟踪信号。

    Hydraulic control device for use with automatic speed change gear device
    36.
    发明授权
    Hydraulic control device for use with automatic speed change gear device 失效
    液压控制装置用于自动变速装置

    公开(公告)号:US4056991A

    公开(公告)日:1977-11-08

    申请号:US585605

    申请日:1975-06-10

    摘要: A hydraulic control device for use with an automatic speed change gear device for a diesel engine using a torque convertor and an auxiliary speed change gear device. This hydraulic control device is provided with a back pressure control valve controlled by means of a throttle pressure developed in response to a throttle opening, wherein when the throttle opening is smaller than a given opening, a pressure oil having a pressure lower than a line pressure is introduced to an accumulator, and when the throttle opening is greater than the aforesaid given opening, a pressure oil having the same pressure level as that of said line pressure is fed to said accumulator to thereby obtain a desired engaging pressure for said automatic speed change gear device, thus effectively preventing a shock due to a change in speed. This device may also be used with a gasoline engine.

    摘要翻译: 一种用于使用扭矩转换器和辅助变速装置的用于柴油发动机的自动变速装置的液压控制装置。 该液压控制装置设置有通过响应于节气门开度而产生的节气门压力控制的背压控制阀,其中当节气门开度小于给定开度时,具有低于管路压力的压力的压力油 引入到蓄能器中,并且当节气门开度大于上述给定开度时,具有与所述管路压力相同的压力水平的压力油被供给到所述蓄能器,从而获得用于所述自动变速的期望的接合压力 齿轮装置,从而有效地防止由于速度变化引起的冲击。 该装置也可以与汽油发动机一起使用。

    WATER HEATER AND FLOW RATE CONTROL METHOD
    38.
    发明申请
    WATER HEATER AND FLOW RATE CONTROL METHOD 有权
    水加热器和流量控制方法

    公开(公告)号:US20140144607A1

    公开(公告)日:2014-05-29

    申请号:US14009299

    申请日:2011-04-01

    IPC分类号: F28G7/00 F24H9/20

    摘要: A water heater in which by applying pulsation of a liquid to be heated which circulates between a tank and a heat exchanger, scale that has been deposited on the inner wall (heat-transfer surface) of a to-be-heated liquid flow channel in a heat exchanger is detached, and the number of times of circulation of the liquid to be heated which circulates between the tank and the heat exchanger is controlled to be three times or less. The number of times of circulation is determined, based on the entire volume of the to-be-heated liquid stored in the tank, a boiling time to be taken for the entire volume of the to-be-heated liquid in the tank to reach a predetermined temperature, and the flow rate of the to-be-heated liquid which passes through the to-be-heated liquid flow channel.

    摘要翻译: 一种热水器,其中通过在罐和热交换器之间循环的被加热液体的脉动施加,已经沉积在待加热的液体流动通道的内壁(传热表面)上的氧化皮 热交换器被分离,并且在罐和热交换器之间循环的待加热液体的循环次数被控制在三倍以下。 基于储存在罐中的待加热液体的总体积来确定循环次数,待罐中被加热液体的总体积达到沸腾时间 预定温度和通过待加热液体流动通道的待加热液体的流量。

    Racket
    39.
    发明授权
    Racket 有权
    球拍

    公开(公告)号:US08206248B2

    公开(公告)日:2012-06-26

    申请号:US12825754

    申请日:2010-06-29

    IPC分类号: A63B49/02

    摘要: A tennis racket includes a frame that includes a shaft and a looped frame portion, the shaft having a grip formed on one end side thereof, the frame portion being joined to the other end side of the shaft and forming a hitting face with a string being strung across and a plurality of insertion holes that provide communication between an inner peripheral side surface and an outer peripheral side surface of the frame portion and through which the string is inserted. Shock absorbing portions and hard portions are provided in an alternating fashion on at least a part of the outer peripheral side surface of the frame portion. Each shock absorbing portion is formed between insertion holes that are adjacent to each other. Each hard portion is formed between insertion holes that are adjacent to each other and is less elastically deformable than the shock absorbing portion.

    摘要翻译: 一种网球拍包括:框架,其包括轴和环状框架部分,所述轴具有形成在其一端侧上的把手,所述框架部分与所述轴的另一端侧接合并且形成具有弦的击球面 跨过框架部分的内周侧表面和外周侧表面之间提供连通并且插入该列的多个插入孔。 冲击吸收部分和硬部分以交替的方式设置在框架部分的外周侧表面的至少一部分上。 每个冲击吸收部分形成在彼此相邻的插入孔之间。 每个硬部分形成在彼此相邻的插入孔之间,并且与冲击吸收部分不太可弹性变形。

    SCALE DEPOSITION DEVICE AND WATER HEATER
    40.
    发明申请
    SCALE DEPOSITION DEVICE AND WATER HEATER 有权
    规模沉积装置和水加热器

    公开(公告)号:US20110283728A1

    公开(公告)日:2011-11-24

    申请号:US13146298

    申请日:2010-01-15

    IPC分类号: F24H4/04 C23F13/00

    摘要: Provided is a water heater, which allows efficient deposition of a scale component dissolved in water so as to reduce adhesion of the scale to a heat-transfer channel. The water heater includes: scale deposition means including a tank, an anode and a cathode provided in the tank so as to be opposed to each other, and a first power supply for applying a voltage between the anode and the cathode, the scale deposition means depositing a scale component dissolved in water retained in the tank; a heat-transfer channel provided at downstream of the scale deposition means, for guiding the water; and a heat source for heating the water by heat exchange in the heat-transfer channel, in which the scale deposition means includes oxygen-gas supplying/dissolving means for supplying an oxygen gas to a water feed pipe for feeding the water to the tank and dissolving the oxygen gas in the water.

    摘要翻译: 提供了一种热水器,其允许有效地沉积溶解在水中的水垢成分,以便降低水垢与传热通道的粘附。 热水器包括:沉积装置,包括设置在罐中以相互对置的罐,阳极和阴极,以及用于在阳极和阴极之间施加电压的第一电源,刻度淀积装置 沉积溶解在储存在水箱中的水中的水垢组分; 设置在刻度沉积装置的下游的用于引导水的传热通道; 以及用于通过在传热通道中进行热交换来加热水的热源,其中,所述水垢沉积装置包括氧气供应/溶解装置,用于将氧气供应到用于将水供给到所述罐的给水管, 将氧气溶解在水中。