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    Variable area obstruction gas flow meter
    92.
    发明授权
    Variable area obstruction gas flow meter 失效

    公开(公告)号：US5038621A

    公开(公告)日：1991-08-13

    申请号：US569950

    申请日：1990-08-20

    Applicant: Josef Stupecky

    Inventor： Josef Stupecky

    IPC: A61B5/087 ,  G01F1/40 ,  G01F1/42

    CPC classification number: G01F1/40 ,  A61B5/0876 ,  G01F1/42

    Abstract: A flow meter including a variable area obstruction which is mounted in a conduit. Inputs to a differential pressure transducer are positioned in the conduit on opposite sides of the obstruction to measure fluid pressure differential across the obstruction. In one embodiment, a sleeve is secured within the conduit thereof substantially separated from the conduit so as to prevent fluid condensation on the sleeve, and to create a dead end pocket between the conduit and the sleeve for collecting liquids from the conduit end preventing them from contacting the obstruction. The variable area obstruction comprises an elastic membrane that includes first, second and third leaves which extend into the flow stream and are compliant to fluid flow so that an increase in flow rate increases the deflection of the leaves and increases the through flow area through the obstruction. The first leaf is secured at a fixed end adjacent a first portion of the interior surface of the conduit and extends in a first direction to a free end preferably positioned adjacent a second portion of the interior surface of the conduit opposite the first portion. The second and third leaves are located adjacent opposite sides of the first leaf and extend from their fixed ends toward their free ends in directions which are generally opposite to the first direction.

    Retractor tool
    93.
    发明授权
    Retractor tool 失效
    牵引工具

    公开(公告)号：US4841787A

    公开(公告)日：1989-06-27

    申请号：US262174

    申请日：1988-10-18

    Applicant: David K. Waterman

    Inventor： David K. Waterman

    IPC: G01F1/40 ,  G01F1/46 ,  G01F15/18 ,  G01K1/14

    CPC classification number: G01F1/40 ,  G01F1/46 ,  G01F15/18 ,  G01K1/146

    Abstract: A retractor tool adapted to insert and retrieve sensing, measuring or control devices in high pressure containers, such as a pipeline, through an access valve and stuffing box without interrupting the fluid flow within the vessel or relieving the pressure. The tool is connected to the stuffing box by a clamshell clamp which utilizes the threaded rod of the apparatus at its hinge axis. The measuring device is inserted or retracted by the operation of a thrust coupling on the retractor threaded rod. Translational movement is imparted to the thrust coupling by means of a handle nut. The retractor tool can be attached to both hex stuffing boxes and cylindrical stuffing boxes.

    Abstract translation: 一种牵开器工具，其适于在不中断容器内的流体流动或缓解压力的情况下，通过进入阀和填料函插入和检索高压容器（例如管道）中的传感，测量或控制装置。 该工具通过蛤壳式夹具连接到填料函，该夹钳利用设备的螺纹杆在其铰链轴处。 通过牵引器螺纹杆上的推力联轴器的操作来插入或缩回测量装置。 平移运动通过手柄螺母传递给推力联轴器。 牵引器工具可以连接到六角填料函和圆柱形填料函。

    Flow sensing device
    94.
    发明授权
    Flow sensing device 失效
    流量检测装置

    公开(公告)号：US4827774A

    公开(公告)日：1989-05-09

    申请号：US87763

    申请日：1987-08-21

    Applicant: Bernard F. Silverwater

    Inventor： Bernard F. Silverwater

    IPC: G01F1/22 ,  G01F1/36 ,  G01F1/40

    CPC classification number: G01F1/22 ,  G01F1/363 ,  G01F1/40

    Abstract: A device for sensing fluid flow comprises a housing having an inlet and an outlet and defining a fluid flow channel between the inlet and the outlet, a first member disposed in the fluid flow channel and including at least one rigid portion, and a second member disposed in the fluid flow channel upstream from the first member and including at least one flexible portion, the flexible portion being elastically flexible between an initial position spaced from the rigid portion and defining a first effective flow area and a final position adjacent the rigid portion and defining a second effective flow area which exceeds the first effective flow area. The device includes pressure passages including a linking arrangement for conveying pressures to a pressure transducer from upstream and downstream of the second member, the pressure measurements being correlated to a fluid flow rate. The link arrangement protects the transducer from pressure surges. The pressure transducer may be disposed in the housing.

    Abstract translation: 用于感测流体流动的装置包括具有入口和出口并限定入口和出口之间的流体流动通道的壳体，设置在流体流动通道中并包括至少一个刚性部分的第一构件，以及设置在第二构件 在所述流体流动通道中从所述第一构件上游并且包括至少一个柔性部分，所述柔性部分在与所述刚性部分间隔开的初始位置之间弹性地弹性并且限定第一有效流动区域和邻近所述刚性部分的最终位置并且限定 超过第一有效流动面积的第二有效流动面积。 该装置包括压力通道，其包括用于将压力从第二构件的上游和下游输送到压力传感器的连接装置，压力测量值与流体流速相关。 连接装置保护换能器不受压力冲击。 压力传感器可以设置在壳体中。

    Flow meter
    95.
    发明授权
    Flow meter 失效
    流量计

    公开(公告)号：US4193301A

    公开(公告)日：1980-03-18

    申请号：US948808

    申请日：1978-10-05

    Applicant: Antonio Ferrentino

    Inventor： Antonio Ferrentino

    IPC: G01F1/36 ,  G01F1/40 ,  G01F1/22

    CPC classification number: G01F1/40 ,  G01F1/363

    Abstract: A flow-meter having a sliding lamina interposed between two chambers and movable to vary the flow therethrough in response to deviations in the pressure difference between the chambers to maintain a constant preset pressure difference for accurate measurement of instantaneous flow rates over a wide range. A cam surface relates linear variation in flow rates to non-linear variation in the area of the opening for fluid passage.

    Abstract translation: 一种流量计，其具有介于两个室之间的滑动层，并且可移动以响应于室之间的压力差的偏差来改变流过其中的流量，以保持恒定的预设压差，从而在宽范围内精确测量瞬时流量。 凸轮表面将流速的线性变化与流体通道的开口面积的非线性变化相关。

    Straightener
    96.
    发明授权
    Straightener 失效
    延伸器

    公开(公告)号：US3840051A

    公开(公告)日：1974-10-08

    申请号：US38826173

    申请日：1973-08-14

    Applicant: MITSUBISHI HEAVY IND LTD

    Inventor： KOGA K ,  AKASHI K ,  WATANABE H

    IPC: F15D1/00 ,  F16L55/027 ,  G01F1/40 ,  F16D1/00

    CPC classification number: F15D1/025 ,  F16L55/02763 ,  G01F1/40 ,  Y10T428/12361 ,  Y10T428/24273

    Abstract: A perforated-plate type straightener adapted to be fitted in a cylindrical pipe across the passage of a fluid flowing through the pipe, comprising a perforated plate having a plurality of round holes which are the same in diameter and so provided that the distances between the adjacent holes are short in the axial center of the pipe and are gradually longer near the surrounding wall.

    Abstract translation: 一种多孔板式矫直机，其适于装配在圆柱形管道中，穿过流过管道的流体的通道，包括多孔板，其具有直径相同的多个圆孔，并且使得相邻 孔在管的轴向中心较短，并在周围的墙壁附近逐渐变长。

    Tap arrangement useful with measuring means
    97.
    发明授权
    Tap arrangement useful with measuring means 失效
    TAP安排有用的测量手段

    公开(公告)号：US3782407A

    公开(公告)日：1974-01-01

    申请号：US3782407D

    申请日：1972-06-26

    Applicant: BLACKWELL W

    Inventor： BLACKWELL W

    IPC: G01F1/40 ,  F16K51/00

    CPC classification number: G01F1/40 ,  Y10S285/921 ,  Y10T137/612

    Abstract: An arrangement for tapping a tube having a liquid flowing therethrough comprising in combination an elongated chamber adapted to be disposed alongside the outer wall of a tube to be tapped, having an extended wall adapted to rest next to said outer tube wall and a plurality of apertures adjacent said extended wall, a tap bore duct extending from said chamber at right angles thereto including an outer retaining ring towards the outer end of said bore for securing the elongated chamber to said tube outer wall, and a small ridge within said bore, narrowing the flow stream into said chamber.

    Abstract translation: 用于抽出具有流过其中的液体的管的装置，其组合有细长室，其适于沿着要被攻丝的管的外壁旁边设置，具有适于靠近所述外管壁放置的延伸壁和多个孔 相邻的所述延伸壁，从所述室直角延伸的抽头孔导管，包括朝向所述孔的外端的外保持环，用于将细长室固定到所述管外壁上，以及在所述孔内缩小一个小脊， 流入所述室。

    Air flow balancing device
    98.
    发明授权
    Air flow balancing device 失效
    空气流量平衡装置

    公开(公告)号：US3748901A

    公开(公告)日：1973-07-31

    申请号：US3748901D

    申请日：1971-03-31

    Applicant: AIR MONITOR CORP

    Inventor： DE BAUN K

    IPC: G01F1/40 ,  G01P5/16

    CPC classification number: G01F1/40 ,  G01P5/16

    Abstract: An improved air balancing hood collects air discharged to atmosphere from air diffusers, grilles, etc., such as those used in typical heating, ventilation and air-conditioning systems, in a convergent collection chamber which terminates in an airstraightening neck of known cross-section to eliminate turbulence and thereby achieve substantially laminar air flow for delivery to flow measuring instrumentation. The volume of air passing through the diffuser is directly measured by total pressure measuring means assembled to the hood and calibrated in flow rate units.

    Abstract translation: 改进的空气平衡罩收集从空气扩散器，格栅等排放到大气中的空气，例如在典型的加热，通风和空调系统中使用的空气，在会聚收集室中终止于已知十字架的空气矫直颈部 以消除湍流，从而实现基本上层流的空气流以传送到流量测量仪器。 通过扩散器的空气体积通过组装到发动机罩上的总压力测量装置直接测量，并以流量单位校准。

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