ULTRASONIC FLUID MEASURING DEVICE
    1.
    发明申请
    ULTRASONIC FLUID MEASURING DEVICE 失效
    超声波流体测量装置

    公开(公告)号:US20100064821A1

    公开(公告)日:2010-03-18

    申请号:US12513563

    申请日:2007-11-08

    IPC分类号: G01F1/66

    CPC分类号: G01F1/667 G01F5/00

    摘要: An ultrasonic fluid measuring device capable of improving a measuring accuracy is provided. In an ultrasonic fluid measuring device 10, first to third ultrasonic measuring portions 16 to 18 are equipped with first ultrasonic transmitter-receivers 16A to 18A and second ultrasonic transmitter-receivers 16B to 18B provided to a measuring pass 14 respectively, and also first to third ultrasonic propagation paths 36 to 38 connecting the first ultrasonic transmitter-receiver 16A to 18A and the second ultrasonic transmitter-receivers 16B to 18B are provided to intersect with a passing direction of a fluid 24 flowing through the measuring pass 14 at different angles respectively. The ultrasonic fluid measuring device 10 employs any one of measured values of the first to third ultrasonic measuring portions 16 to 18 in response to a flow rate Q.

    摘要翻译: 提供了能够提高测量精度的超声波流体测量装置。 在超声波流体测量装置10中,第一至第三超声波测量部分16至18分别配备有分别设置在测量通路14上的第一超声波发射器 - 接收器16A至18A和第二超声波发射器 - 接收器16B至18B,并且还具有第一至第三 连接第一超声波收发器16A至18A和第二超声波发射器 - 接收器16B至18B的超声波传播路径36至38分别与流过测量通路14的流体24的通过方向分别相交。 超声波流体测量装置10响应于流量Q,采用第一至第三超声波测量部16至18的测量值中的任何一个。

    Ultrasonic flow rate measuring device having a plurality of ultrasonic flow rate sensors
    2.
    发明授权
    Ultrasonic flow rate measuring device having a plurality of ultrasonic flow rate sensors 失效
    具有多个超声波流量传感器的超声波流量测量装置

    公开(公告)号:US07980142B2

    公开(公告)日:2011-07-19

    申请号:US12513563

    申请日:2007-11-08

    IPC分类号: G01F1/84

    CPC分类号: G01F1/667 G01F5/00

    摘要: The present invention is directed to an ultrasonic flow rate measuring device capable of improving the measurement accuracy. Such an ultrasonic flow rate measuring device comprises first to third ultrasonic flow rate sensors in the measurement passage which are equipped with first ultrasonic wave transmitter-receivers and second ultrasonic wave transmitter-receivers. First to third ultrasonic wave propagation paths connecting the first ultrasonic wave transmitter-receiver and the second ultrasonic wave transmitter-receivers, respectively, intersect at different angles with the flow direction of fluid flowing through the measurement passages. The ultrasonic flow rate measuring device of the present invention obtains a flow rate measurement selectively from one of the first to third ultrasonic flow rate sensors in response to a flow rate Q.

    摘要翻译: 本发明涉及能够提高测定精度的超声波流量测量装置。 这种超声波流量测量装置包括测量通道中的配备有第一超声波发射器 - 接收器和第二超声波发射器 - 接收器的第一至第三超声波流量传感器。 分别连接第一超声波发射器 - 接收器和第二超声波发射器 - 接收器的第一至第三超声波传播路径与流过测量通道的流体的流动方向以不同的角度相交。 本发明的超声波流量测量装置响应于流量Q,从第一至第三超声波流量传感器之一中选择性地获得流量测量值。

    Ultrasonic flowmeter having reduced phase difference
    4.
    发明授权
    Ultrasonic flowmeter having reduced phase difference 有权
    超声波流量计具有减小的相位差

    公开(公告)号:US06216544B1

    公开(公告)日:2001-04-17

    申请号:US09202532

    申请日:1998-12-18

    IPC分类号: G01F166

    CPC分类号: G01F1/662

    摘要: An ultrasonic flowmeter includes a flow path defined by four wall sections, a flow measurement section, a calculation section and a pair of ultrasonic oscillators for transmitting and receiving an ultrasonic wave over a distance. The flow path is configured to reduce the influence of a phase difference, which results from the varying propagation distances of a direct wave and a reflected wave, by changing one or more of the flow measurement section configuration, the ultrasonic wave frequency, the orientation of the ultrasonic oscillators, and the distance between the pair of ultrasonic oscillators. A measurement section is suitably configured to measure the propagation time of the ultrasonic wave propagating between the pair of ultrasonic oscillators. Additionally, a calculation section is suitably configured to receive measurements from the measurement section and to calculate the fluid flow in the flow measurement section.

    摘要翻译: 超声波流量计包括由四个壁部分限定的流动路径,流量测量部分,计算部分和一对用于在一定距离上发送和接收超声波的超声波振荡器。 流路被配置为通过改变流量测量部分配置,超声波频率,超声波频率的方向来减少由直接波和反射波的变化的传播距离引起的相位差的影响 超声波振荡器和一对超声波振荡器之间的距离。 测量部适当地配置为测量在一对超声波振荡器之间传播的超声波的传播时间。 此外,计算部适当地构成为从测量部接收测量值,并计算流量测量部中的流体流量。

    Shutoff valve device
    5.
    发明授权
    Shutoff valve device 有权
    截止阀装置

    公开(公告)号:US09528624B2

    公开(公告)日:2016-12-27

    申请号:US13983743

    申请日:2012-01-19

    摘要: A shutoff valve according to the present invention includes: a motor configured to cause a rotating shaft to rotate; a lead screw formed on the rotating shaft; a lead nut into which the lead screw is screwed; and a valve element configured to block a passage, the valve element being configured to move in an axial direction in accordance with rotation of the rotating shaft. A dry lubricating coating is formed on a contact surface where the lead screw and the lead nut come into contact with each other. A thread pitch of the lead screw is set such that a current applied to the motor, the current being in relation to an inductance of the motor, is in a range that does not cause explosion of the fuel gas and that allows thrust force necessary for moving the valve element to be obtained.

    摘要翻译: 根据本发明的截止阀包括:马达,其构造成使旋转轴旋转; 形成在旋转轴上的导螺杆; 螺丝拧入螺母的导螺母; 以及构造成阻挡通道的阀元件,所述阀元件构造成根据所述旋转轴的旋转沿轴向移动。 在导螺杆和螺母彼此接触的接触表面上形成干润滑涂层。 引线螺杆的螺距被设定为使得施加到电动机的电流相对于电动机的电感相对于不会引起燃料气体爆炸的范围,并且允许电动机所需的推力 移动要获得的阀元件。

    SHUTOFF VALVE DEVICE
    6.
    发明申请
    SHUTOFF VALVE DEVICE 有权
    开关阀装置

    公开(公告)号:US20130306893A1

    公开(公告)日:2013-11-21

    申请号:US13983743

    申请日:2012-01-19

    IPC分类号: F16K31/04

    摘要: A shutoff valve according to the present invention includes: a motor configured to cause a rotating shaft to rotate; a lead screw formed on the rotating shaft; a lead nut into which the lead screw is screwed; and a valve element configured to block a passage, the valve element being configured to move in an axial direction in accordance with rotation of the rotating shaft. A dry lubricating coating is formed on a contact surface where the lead screw and the lead nut come into contact with each other. A thread pitch of the lead screw is set such that a current applied to the motor, the current being in relation to an inductance of the motor, is in a range that does not cause explosion of the fuel gas and that allows thrust force necessary for moving the valve element to be obtained.

    摘要翻译: 根据本发明的截止阀包括:马达,其构造成使旋转轴旋转; 形成在旋转轴上的导螺杆; 螺丝拧入螺母的导螺母; 以及构造成阻挡通道的阀元件,所述阀元件构造成根据所述旋转轴的旋转沿轴向移动。 在导螺杆和螺母彼此接触的接触表面上形成干润滑涂层。 引线螺杆的螺距被设定为使得施加到电动机的电流相对于电动机的电感相对于不会引起燃料气体爆炸的范围,并且允许电动机所需的推力 移动要获得的阀元件。