Flow control valve
    1.
    发明授权
    Flow control valve 失效
    流量控制阀

    公开(公告)号:US4998561A

    公开(公告)日:1991-03-12

    申请号:US446376

    申请日:1989-12-05

    IPC分类号: F16K31/06 F16K39/02

    摘要: A flow control valve comprising a main valve for opening and closing a fluid conduit, an electromagnetic coil for driving the main valve, a diaphragm responsive to the action of the main valve, a sub-valve chamber partitioned by the main valve and the diaphragm, a sub-valve incorporated in the main valve for opening and closing the sub-valve chamber to a conduit in the secondary side, a projection, protrusively formed on a driving shaft of the electromagnetic coil, responsive to a driving force of the electromagnetic coil for sliding the sub-valve by a predetermined stroke to bring the same in a fully opened state with the main valve remaining in a closed state and thereafter opening the main valve, a bleed orifice provided through a side wall of the main valve for making the pressure in the sub-valve chamber equal to a primary pressure; and a returning spring for urging each of the main valve and the sub-valve in the closing direction.

    摘要翻译: 一种流量控制阀,包括用于打开和关闭流体导管的主阀,用于驱动主阀的电磁线圈,响应于主阀的作用的隔膜,由主阀和隔膜分隔的副阀室, 并入主阀中的副阀,用于将次阀室打开和关闭到次级侧的导管,突出部形成在电磁线圈的驱动轴上,该突起响应于电磁线圈的驱动力,用于 以预定行程滑动副阀,使其处于完全打开状态,主阀保持在关闭状态,然后打开主阀,通过主阀的侧壁设置的排气孔,用于使压力 在次阀室中等于初级压力; 以及用于沿关闭方向推压主阀和副阀的每一个的复位弹簧。

    Control apparatus and control method for AC motor
    2.
    发明授权
    Control apparatus and control method for AC motor 失效
    交流电机控制装置及控制方法

    公开(公告)号:US08248007B2

    公开(公告)日:2012-08-21

    申请号:US12730793

    申请日:2010-03-24

    IPC分类号: H02P6/10 H02P31/02 H02P21/14

    摘要: A control apparatus for an AC motor controls an inverter in a pulse width modulation scheme to feed a coil current to a stator coil of a stator. A pattern switching mechanism switches a control pattern to a first pattern or to a second pattern; a first pattern calculating mechanism calculates a control signal using a first pattern parameter; a second pattern calculating mechanism calculates a control signal using a second pattern parameter; an offset calculating mechanism calculates a difference between a control signal of an old pattern and a control signal of a new pattern, and reflects the offset amount on the control signals; and a control output mechanism calculates a final control output signal on the basis of the control signals, and transmits the final control output signal to the inverter.

    摘要翻译: 用于AC电动机的控制装置以脉冲宽度调制方式控制逆变器,以将线圈电流馈送到定子的定子线圈。 图案切换机构将控制图案切换为第一图案或第二图案; 第一图案计算机构使用第一图案参数计算控制信号; 第二图案计算机构使用第二图案参数来计算控制信号; 偏移计算机构计算旧图案的控制信号与新图案的控制信号之间的差异,并且反映控制信号的偏移量; 并且控制输出机构基于控制信号计算最终控制输出信号,并将最终控制输出信号发送到逆变器。

    Flowmeter having a bent inlet passage for constant flow-velocity distribution
    3.
    发明授权
    Flowmeter having a bent inlet passage for constant flow-velocity distribution 有权
    流量计具有弯曲的入口通道,用于恒定的流速分布

    公开(公告)号:US07698938B2

    公开(公告)日:2010-04-20

    申请号:US11570249

    申请日:2005-06-10

    IPC分类号: G01F1/68

    CPC分类号: G01F1/6842 G01F1/68

    摘要: To provide a flowmeter producing stable measurement results and coincidentally achieving miniaturization, a bent portion is provided in a flow path located between an inlet port of fluids to the flowmeter and a second flow path at which a sensor detecting a flow rate is positioned, thus forming at a sensor an almost uniform flow-velocity distribution in cross-section of the fluids and a reproducible and constant flow-velocity distribution.

    摘要翻译: 为了提供一种产生稳定测量结果并且巧合地实现小型化的流量计,弯曲部分设置在位于流体流体的入口端口与流量检测器的传感器所在的第二流路之间的流路中,从而形成 在传感器中,流体横截面中的流速分布几乎一致,并且具有可重复且恒定的流速分布。

    Flow rate detector and flow controller
    5.
    发明申请
    Flow rate detector and flow controller 有权
    流量检测器和流量控制器

    公开(公告)号:US20060144137A1

    公开(公告)日:2006-07-06

    申请号:US10562958

    申请日:2004-07-05

    IPC分类号: G01F15/02

    摘要: A path detector constructed so that a path block body (10) forming a given path (11) and having a flow sensor (13) interposed in the path (11) and a circuit board (4) surmounted by an electric circuit are accommodated in a rectangular parallelepiped or cubic housing (1). There are provided an indicator (6) and an operation switch (7) in the front surface portion of the housing (1) that is exposed to the front surface of a given panel when fixed to the panel. A U-shaped path is so formed as to have an inlet (2) and an outlet (3) in the back surface portion of the housing (1). A terminal for external connection (5) of the circuit board (4) is disposed in the back surface portion of the housing (1).

    摘要翻译: 路径检测器被构造成使得形成给定路径(11)并且具有插入路径(11)中的流量传感器(13)的路径块体(10)和由电路覆盖的电路板(4)被容纳在 一个长方体或立方体(1)。 在壳体(1)的前表面部分设置有指示器(6)和操作开关(7),当固定到面板上时,暴露于给定面板的前表面。 U形路径形成为在壳体(1)的后表面部分中具有入口(2)和出口(3)。 电路板(4)的外部连接(5)的端子设置在壳体(1)的后表面部分中。

    Flow meter and flow controlling device
    6.
    发明授权
    Flow meter and flow controlling device 有权
    流量计和流量控制装置

    公开(公告)号:US07886593B2

    公开(公告)日:2011-02-15

    申请号:US12502291

    申请日:2009-07-14

    IPC分类号: G01F5/00

    摘要: To provide a highly accurate flow meter. A Flow meter comprising an inflow opening into which a measurement fluid flows, an outflow opening from which a measurement fluid flows, and a flow path connecting the inflow opening and the outflow opening, wherein the flow path is bent at a first bend portion, wherein: a first porous plate is disposed in the first bend portion of the flow path at an angle relative to the direction in which the flow path extends before and after the first bend portion, and a flow sensor for detecting the flow speed or flow volume of a measurement fluid that flows in the flow path, disposed on the inner wall of the flow path on the outflow opening side of the first bend portion.

    摘要翻译: 提供高精度的流量计。 一种流量计,包括测量流体流入的流入开口,测量流体流过的流出开口以及连接流入开口和流出口的流路,其中流路在第一弯曲部弯曲,其中 第一多孔板相对于第一弯曲部分之前和之后的流路延伸的方向以一定角度设置在流路的第一弯曲部分中,以及用于检测流动速度或流量的流量传感器 流过所述流路的测量流体,设置在所述第一弯曲部的流出开口侧的所述流路的内壁上。

    FLOW METER AND FLOW CONTROLLING DEVICE
    7.
    发明申请
    FLOW METER AND FLOW CONTROLLING DEVICE 有权
    流量计和流量控制装置

    公开(公告)号:US20100064798A1

    公开(公告)日:2010-03-18

    申请号:US12502291

    申请日:2009-07-14

    IPC分类号: G01F5/00 G05D7/00

    摘要: To provide a highly accurate flow meter. A Flow meter comprising an inflow opening into which a measurement fluid flows, an outflow opening from which a measurement fluid flows, and a flow path connecting the inflow opening and the outflow opening, wherein the flow path is bent at a first bend portion, wherein: a first porous plate is disposed in the first bend portion of the flow path at an angle relative to the direction in which the flow path extends before and after the first bend portion, and a flow sensor for detecting the flow speed or flow volume of a measurement fluid that flows in the flow path, disposed on the inner wall of the flow path on the outflow opening side of the first bend portion.

    摘要翻译: 提供高精度的流量计。 一种流量计,包括测量流体流入的流入开口,测量流体流过的流出开口以及连接流入开口和流出口的流路,其中流路在第一弯曲部弯曲,其中 第一多孔板相对于第一弯曲部分之前和之后的流路延伸的方向以一定角度设置在流路的第一弯曲部分中,以及用于检测流动速度或流量的流量传感器 流过所述流路的测量流体,设置在所述第一弯曲部的流出开口侧的所述流路的内壁上。

    FLUID FLOW RECTIFYING DEVICE AND FLOW METER USING THE SAME
    8.
    发明申请
    FLUID FLOW RECTIFYING DEVICE AND FLOW METER USING THE SAME 审中-公开
    流体流动修复装置和流量计使用它

    公开(公告)号:US20090199657A1

    公开(公告)日:2009-08-13

    申请号:US12366026

    申请日:2009-02-05

    IPC分类号: F15D1/04 G01F1/44 B23P17/04

    摘要: To provide a fluid flow rectifying device wherein the fluid flow rectifying device can be secured easily in the inlet of a flow path and wherein the flow path structure can be simplified and the fastening operation can be made more efficient. A fluid flow rectifying device for rectifying the flow of a fluid that flows in a flow path, and which can be built in to a flow path of a fluid, comprises a fluid flow rectifying device main unit that is structured from stacking a plurality of cylindrical spacer blocks and a plurality of mesh-shaped flow rectifying members, having external shapes that are essentially identical to the external shape of the spacer blocks; and a retaining ring having a retaining portion having an external shape that is essentially identical to the external shape of the fluid flow rectifying device main unit, and being bent so as to have an angle, from the vicinity of an attachment base, in the direction that is opposite of the direction of insertion of the fluid flow rectifying device main unit, and having a protrusion to the outside from the outer peripheral surface thereof, provided integrally with the end surface of the fluid flow rectifying device main unit that is on the side opposite from the direction of insertion into the flow path.

    摘要翻译: 为了提供一种流体整流装置,其中流体整流装置可以容易地固定在流路的入口中,并且其中可以简化流路结构,并且可以使紧固操作更有效。 一种流体流动整流装置,用于整流在流路中流动的流体流,该流体可以内置在流体的流路中,包括:流体整流装置主单元,其由堆叠多个圆筒状 间隔块和多个网状流动整流构件,其具有与间隔块的外部形状基本相同的外部形状; 以及保持环,其具有保持部,所述保持部具有与所述流体整流装置主体的外部形状基本相同的外形,并且从所述安装基部的附近向所述方向 其与流体整流装置主体的插入方向相反,并且从其外周面向外侧突出设置,与设置在流体整流装置主体的流体整流装置主体的端面一体设置 与插入流路的方向相反。

    Control device for electric-powered motor and designing method thereof
    10.
    发明授权
    Control device for electric-powered motor and designing method thereof 失效
    电动马达控制装置及其设计方法

    公开(公告)号:US06717381B2

    公开(公告)日:2004-04-06

    申请号:US10197404

    申请日:2002-07-18

    IPC分类号: G05B1101

    CPC分类号: H02P25/098

    摘要: A control device of an electric motor which can compatible high robust stability performance and a tracking performance and a designing method thereof. A feedback correction is obtained based on a detected motor rotation speed and a feedforward correction amount is obtained based on a calculated target torque by a controller of a microcomputer. The microcomputer commands torque control to an SR motor based on the feedback correction amount and the feedforward correction amount.

    摘要翻译: 一种电动马达的控制装置,其能够兼容高稳健性能和跟踪性能及其设计方法。 基于检测到的电动机转速获得反馈校正,并且基于由微型计算机的控制器计算出的目标转矩来获得前馈校正量。 微型计算机根据反馈校正量和前馈校正量,向SR电机指令转矩控制。