Flow quantity measuring device
    43.
    发明授权
    Flow quantity measuring device 有权
    流量测量装置

    公开(公告)号:US07644614B2

    公开(公告)日:2010-01-12

    申请号:US12108313

    申请日:2008-04-23

    IPC分类号: G01F1/68

    CPC分类号: G01F1/692

    摘要: In a flow quantity measuring device, each of upstream side and downstream side sensing resistors, which are placed on an upstream side and a downstream side, respectively, of a heating resistor, includes resistor elements, each of which forms a folded path. The folded path has a generally constant width along an entire extent thereof and is returned at each of first and second longitudinal end edges of a sensing area. The heating resistor forms a folded path, which has a generally constant width along an entire extent thereof and is returned at the second longitudinal end edge of the heat generating area. First and second ends of the folded path of the heating resistor projects beyond the first longitudinal end edge of the sensing area on a first side of the flow quantity measuring device.

    摘要翻译: 在流量测量装置中,分别位于加热电阻器的上游侧和下游侧的上游侧和下游侧检测电阻器中的每一个包括各自形成折叠路径的电阻器元件。 折叠路径在其整个范围上具有大致恒定的宽度,并且在感测区域的第一和第二纵向端边缘的每一个处返回。 加热电阻器形成折叠路径,该折叠路径在其整个范围上具有大致恒定的宽度,并且在发热区域的第二纵向端部边缘处返回。 加热电阻器的折叠路径的第一和第二端在流量测量装置的第一侧突出超过感测区域的第一纵向端边缘。

    Thermal flowmeter for detecting rate and direction of fluid flow

    公开(公告)号:US06629456B2

    公开(公告)日:2003-10-07

    申请号:US09994051

    申请日:2001-11-27

    申请人: Yasushi Kohno

    发明人: Yasushi Kohno

    IPC分类号: G01F168

    CPC分类号: G01F1/72 G01F1/6845

    摘要: A flowmeter includes a heating resistor and a resistive element for detecting the temperature of the heating resistor. The heating resistor is controlled so that the temperature detected by the resistive element approaches a reference temperature determined based on the temperature of the fluid flow. As a result, the temperature of the upstream side of the heating resistor becomes lower than the reference temperature, while the temperature of the downstream side of the heating resistor becomes higher than the reference temperature. Another resistive element is arranged on the upstream side or the downstream side of the heating resistor for detecting the rate of the fluid flow, and the rate and the direction of the fluid flow are detected by comparing the temperature of the resistive element with the reference temperature. This flowmeter is immune to variation in the resistance of the heating resistor.

    Apparatus for separating minute substances in liquid
    48.
    发明授权
    Apparatus for separating minute substances in liquid 失效
    用于分离液体中微量物质的装置

    公开(公告)号:US5906732A

    公开(公告)日:1999-05-25

    申请号:US739722

    申请日:1996-10-29

    申请人: Yasushi Kohno

    发明人: Yasushi Kohno

    CPC分类号: B07C5/361 Y10T137/87877

    摘要: An in-liquid small substance separation/recovery apparatus which can separate small substances in a liquid into discrete ones in large amounts, includes a branch tube having an inlet port, a discharge port, and a separation/recovery port, a sensor to detect the small substances in a fluid passing through the inlet port, a controller to close and open a pair of valves, one at the discharge port and another at the separation/recovery port, and equipped with timers to start clocking a predetermined length of time each time the sensor detects a small substance and to signal the controller to open the valve at the discharge port.

    摘要翻译: 一种能够将液体中的小物质分离成大量离散液体的液体内物质分离/回收装置,包括具有入口,排出口和分离/回收口的分支管, 通过入口的流体中的小物质,控制器关闭和打开一对阀,一个在排出口处,另一个在分离/回收口处,并且配备有定时器,以每次开始计时预定的时间长度 传感器检测到一个小物质,并发出信号通知控制器打开排放口处的阀门。