会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 22. 发明申请
    • Impeller
    • 叶轮
    • US20080104837A1
    • 2008-05-08
    • US11889160
    • 2007-08-09
    • Kazuo IkedaYasutaka OkudaRyouhei AdachiSatoshi MaruyamaSatoshi Hoshino
    • Kazuo IkedaYasutaka OkudaRyouhei AdachiSatoshi MaruyamaSatoshi Hoshino
    • B21D53/78
    • F04D29/20B29C45/14065B29C45/1459B29C45/842B29L2031/08F04D29/026F04D29/2227F05D2300/10F05D2300/44Y10T29/49316Y10T29/49325Y10T29/49329
    • The present invention provides an impeller in which a metallic bush can be inserted correctly into a synthetic resin impeller main body manufactured by resin molding using a die, and a determination as to whether or not the impeller has been manufactured correctly can be made easily. The impeller comprises: a metallic bush comprising a circumferential boss portion having a substantially truncated cone-shaped throttle portion positioned on a front surface axial end side, a periaxial support boss portion positioned in an axial center, and a circumferential protruding portion positioned on a back surface axial end side; and an impeller main body made of synthetic resin and formed with a V-shaped bulging portion that bulges axially in the center of a front surface side of a disk-shaped vane portion fulcrum, in which a plurality of vanes are formed integrally on the periphery of the V-shaped bulging portion. An outer diameter of the circumferential protruding portion of the bush is formed to be smaller than an outer diameter of an axial end location of the throttle portion, the circumferential protruding portion is positioned on a back surface side of the V-shaped bulging portion, and the bush is inserted into the V-shaped bulging portion.
    • 本发明提供一种叶轮,其中可以将金属衬套正确地插入到通过使用模具的树脂成型制造的合成树脂叶轮主体中,并且可以容易地确定是否正确地制造了叶轮。 叶轮包括:金属衬套,其包括周向凸台部分,其具有位于前表面轴向端侧的基本上截头圆锥形的节流部分,位于轴向中心的轴向支撑凸台部分和位于背面的周向突出部分 表面轴向端面; 以及由合成树脂制成的叶轮主体,其形成有V形凸起部,该V形凸出部在圆盘形叶片部支点的前表面侧的中心轴向凸出,其中多个叶片一体地形成在周边 的V形凸出部分。 衬套的周向突出部的外径形成为小于节流部的轴向端部的外径,周向突出部位于V形凸出部的背面侧, 衬套插入到V形凸出部分中。
    • 30. 发明授权
    • Harmonic suppressing device
    • 谐波抑制装置
    • US4812669A
    • 1989-03-14
    • US66203
    • 1987-06-25
    • Masatoshi TakedaKazuo IkedaYoshiharu TominagaKenji Mori
    • Masatoshi TakedaKazuo IkedaYoshiharu TominagaKenji Mori
    • G05F1/70H02J3/01H02M1/084H02M1/12H02P13/30H02J3/18
    • H02J3/01H02M1/084Y02E40/40Y10T307/25
    • A harmonic suppressing device provided in a power system such as, for example, a transmission and distribution system or a power generating system, to filter higher harmonic currents generated by a higher harmonic current source of the power system such as, for example, a cycloconverter. The harmonic suppressing device comprises, as the principal components thereof, a passive filter serving as a high-order higher harmonic filtering unit for filtering higher harmonic currents of comparatively high order among those generated by the higher harmonic current source, and an active filter serving as low-order higher harmonic filtering unit for filtering higher harmonic currents of comparatively low orders among those generated by the higher harmonic current source. The active filter comprises: a main active filtering circuit comprising a plurality of switching transistors, rectifying diodes combined with the switching transistors, respectively, a capacitor, and a reactor; an operating circuit which calculates controlling data for controlling the commutating action of the main active filtering circuit on the basis of the detected values of the higher harmonic currents that flows into the power source side of the power system and the detected values of the output voltage of the higher harmonic current source; and a control circuit which gives control signals such as, for example, pulse width modulating signals to the main active filtering circuit. The harmonic suppressing device is capable of filtering higher harmonic currents in a wide frequency band.
    • 一种谐波抑制装置,其设置在例如输配电系统或发电系统的电力系统中,以过滤由电力系统的高次谐波电流源产生的高次谐波电流,例如循环换流器 。 谐波抑制装置作为其主要部件包括用作高次谐波滤波单元的无源滤波器,用于对由高次谐波电流源产生的高次谐波电流进行滤波,并且将有源滤波器用作 低次谐波滤波单元,用于过滤由高次谐波电流源产生的较低阶的较高次谐波电流。 有源滤波器包括:主有源滤波电路,包括多个开关晶体管,分别与开关晶体管组合的整流二极管,电容器和反应器; 运算电路,其基于流入电力系统的电源侧的高次谐波电流的检测值和电力系统的输出电压的检测值,计算用于控制主有源滤波电路的换向动作的控制数据 高次谐波电流源; 以及控制电路,其向主要有源滤波电路提供诸如脉冲宽度调制信号的控制信号。 谐波抑制装置能够在宽频带中滤除高次谐波电流。