公开(公告)号：US3657925A

公开(公告)日：1972-04-25

申请号：US3657925D

申请日：1970-06-01

申请人： INT RECTIFIER CORP

发明人： GROSS FREDERICK A

IPC分类号： F16K11/00 ,  G01F3/14 ,  G01F3/16 ,  G01F1/04

CPC分类号： F16K11/00 ,  G01F3/14 ,  G01F3/16

摘要： A flowmeter comprising a four-way valve which directs fluid against one side or the other of a piston, while the other side of the piston is connected to an outlet line. The piston is connected to a permanent magnet which moves through an elongated winding to generate an output voltage related to the piston velocity which, in turn, is related to volumetric flow rate. The four-way valve is cycled to automatically reverse piston movement before the piston reaches one end of its full motion by an auxiliary valve which is operated from magnetic reed switches disposed along the path of movement of the permanent magnet. A readout and control circuit is provided which can present the velocity measurement on a digital display, with the circuit also providing calibration capability.

摘要翻译： 一种流量计，包括四通阀，其将流体引导到活塞的一侧或另一侧，而活塞的另一侧连接到出口管线。 活塞连接到永久磁铁，该永久磁铁移动通过细长的绕组以产生与活塞速度相关的输出电压，这反过来与体积流量有关。 在活塞到达其全运动的一端之前，四通阀循环以自动地反向活塞运动，该辅助阀由沿永磁体运动路径设置的磁簧开关操作。 提供读出和控制电路，其可以在数字显示器上呈现速度测量，电路还提供校准能力。

公开(公告)号：US20130024138A1

公开(公告)日：2013-01-24

申请号：US13187330

申请日：2011-07-20

申请人： Thomas M. Mills

发明人： Thomas M. Mills

IPC分类号： G06F19/00

CPC分类号： E21B47/0008 ,  E21B47/10 ,  G01F3/14 ,  G06F17/40 ,  G06F19/00

摘要： Methods for measuring the leakage rate of a downhole pump using either measured axial load information from the drive rod string or using measured production data. The invention is for methods of applying the leakage rate to a downhole dynamometer card, for a reciprocating rod pump, for determining well production.

摘要翻译： 使用来自驱动杆串的测量的轴向负载信息或使用测量的生产数据来测量井下泵的泄漏率的方法。 本发明是为了确定井的产量而将泄漏率应用于往复式杆式泵的井下测力计卡的方法。

公开(公告)号：US20060048847A1

公开(公告)日：2006-03-09

申请号：US10532266

申请日：2003-10-22

申请人： Lars Askman ,  Richard Ludwick

发明人： Lars Askman ,  Richard Ludwick

IPC分类号： B67C3/26

CPC分类号： G01F3/14 ,  G01F11/024 ,  G01F11/22

摘要： A device for accurately metering food. The device includes an outer part and an inner metering part having a dosing chamber and a piston block slideably mounted therein. The housing outer part has three passageways, and the dosing chamber is configured, dimensioned and positioned to alternately connect two of the three passageways of the outer part. The inner metering part is configured, dimensioned and positioned for rotation within the outer part. The outer housing part and the inner metering part are mounted concentrically with the inner metering part and the inner metering part has only one degree of liberty in rotation around a central axis of rotation.

摘要翻译： 用于准确计量食物的装置。 该装置包括外部部件和内部计量部件，其具有可滑动地安装在其中的计量室和活塞块。 壳体外部具有三个通道，并且配量腔被构造成尺寸并定位成交替地连接外部部分的三个通道中的两个。 内部计量部件被构造成尺寸并定位成在外部部分内旋转。 外部壳体部分和内部计量部件与内部计量部件同心地安装，并且内侧计量部件仅围绕中心旋转轴线旋转一个自由度。

公开(公告)号：US5065903A

公开(公告)日：1991-11-19

申请号：US639749

申请日：1991-01-14

申请人： Hans W. Meinz

发明人： Hans W. Meinz

IPC分类号： G01F3/14 ,  G05D7/06 ,  G05D11/13

CPC分类号： G05D7/0635 ,  G01F3/14

摘要： A delivery system for controlling the flow of fluid is disclosed. The comprises a control valve comprising an electric control motor and a valve, and a hydraulic piston type motor including a shaft which is rotated when fluid flows through the system. The rate at which fluid flows into the system is measured by the hydraulic motor and is reflected by the rate at which the hydraulic motor shaft rotates. The rate at which fluid flows through the system is controlled by the control valve. The control valve is movable between a first position in which a first fluid flow rate through the system is achieved and a second position is which a second flow rate higher than the first rate is achieved. The control motor is responsive to an external signal which indicates a rate rotation for the control motor corresponding with a rate of fluid flow. The control motor shaft, the hydraulic motor shaft and the control valve are dynamically connected so that, when the rate at which fluid id flowing through the system is less than the given rate, the control valve is moved towards the second position and, when the rate at which fluid is flowing through the system is greater than the given rate, the control valve is moved towards the first position. A fluid component dosing apparatus including at least one hydraulically actuated dosing pump driven by a delivery system according to the invention is also disclosed.

摘要翻译： 公开了一种用于控制流体流动的输送系统。 它包括一个包括一个电动控制马达和一个阀门的控制阀，以及一个液压活塞式马达，它包括当流体流过系统时旋转的轴。 流体流入系统的速度由液压马达测量，并被液压马达轴旋转的速度反射。 流体流过系统的速度由控制阀控制。 控制阀可以在其中实现通过系统的第一流体流量和第二位置的第一位置之间移动，第二位置的第二流量比第一速率高。 控制马达响应外部信号，该外部信号指示对应于流体流量的控制马达的速率旋转。 控制电机轴，液压马达轴和控制阀被动态连接，使得当流过系统的流体id的速率小于给定速率时，控制阀向第二位置移动，并且当 流体流过系统的速率大于给定的速率，控制阀向第一位置移动。 还公开了包括由根据本发明的输送系统驱动的至少一个液压致动计量泵的流体组分计量装置。

公开(公告)号：US20100116368A1

公开(公告)日：2010-05-13

申请号：US12611744

申请日：2009-11-03

申请人： Behrokh Khoshnevis

发明人： Behrokh Khoshnevis

IPC分类号： E03B1/00

CPC分类号： G01F3/14 ,  Y10T137/87314 ,  Y10T137/8741 ,  Y10T137/87917

摘要： A fluid metering device may meter the flow of fluid. The device may have a main chamber and a piston configured and oriented to reciprocate within the main chamber. The piston may be configured and oriented to define a first and a second sub-chamber whose volumes vary inversely as a function of the position of the piston during its reciprocation. The fluid metering device may have a first inlet valve configured to controllably regulate the flow of fluid into the first sub-chamber, a first outlet valve configured to controllably regulate the flow of fluid out of the first sub-chamber, a second inlet valve configured to controllably regulate the flow of fluid into the second sub-chamber, and a second outlet valve configured to controllably regulate the flow of fluid out of the second sub-chamber. A valve controller may be configured to control each of the values in a manner that causes fluid to flow through the each of the sub-chambers at an average rate that substantially tracks a control signal which is delivered to the valve controller.

摘要翻译： 流体计量装置可以测量流体的流量。 该装置可以具有构造和定向成在主室内往复运动的主室和活塞。 活塞可以被构造和定向成限定第一和第二子室，其体积在其往复运动期间作为活塞的位置的函数反向变化。 流体计量装置可以具有构造成可控制地调节流入第一子室的流体的第一入口阀，构造成可控制地调节流体流出第一子室的第一出口阀，配置成 以可控制地调节流入第二子室的流体，以及构造成可控制地调节流体流出第二子室的第二出口阀。 阀控制器可以被配置为以使得流体以基本上跟踪输送到阀控制器的控制信号的平均速率流过每个子室的方式来控制每个值。

公开(公告)号：US4561304A

公开(公告)日：1985-12-31

申请号：US562483

申请日：1983-12-15

申请人： John K. Max

发明人： John K. Max

IPC分类号： G01F3/14

CPC分类号： G01F3/14

摘要： A positive displacement radial piston flowmeter includes pistons coupled to one another by connecting rods. Fluid passageways interconnect the cylinders and inlet and outlet ports formed in the housing. Piston movement is sensed by a pair of linear differential transducers, including exciter and sensing windings, mounted over the outer end of two adjacent cylinders. An elongate piston extension carrying a magnetic material reciprocates within the coils. Each sensing coil produces a voltage difference having a sinusoidal wave form so the two transducers produce a two phase sinusoidal signal (when demodulated) which allows sensing and control circuitry to make very accurate flow measurements. The coil housing is constructed so the electromagnetic properties at both sensing coils are equal to eliminate the need to compensate for initial signal bias or signal drift. The pistons are attached to the outer ends of the connecting rods through a universal joint to compensate for manufacturing tolerances. The passageways fluidly connected to the cylinders are positioned so that the top of the passageways are about even with the highest point of the cylinder. This allows the meter to be self-purging as to air and vapor which may become trapped within the meter.

摘要翻译： 正排量径向活塞流量计包括通过连杆彼此连接的活塞。 流体通道将气缸和形成在壳体中的入口和出口连接。 活塞运动由一对线性差动换能器感应，包括激励器和感应绕组，安装在两个相邻气缸的外端上。 承载磁性材料的细长活塞延伸部在线圈内往复运动。 每个感测线圈产生具有正弦波形的电压差，因此两个换能器产生两相正弦信号（当被解调时），其允许感测和控制电路进行非常精确的流量测量。 线圈壳体被构造成使得两个感测线圈处的电磁特性相等以消除补偿初始信号偏置或信号漂移的需要。 活塞通过万向接头连接到连杆的外端，以补偿制造公差。 流体连接到气缸的通道定位成使得通道的顶部在气缸的最高点处大致均匀。 这允许仪表自动吹扫可能被困在仪表内的空气和蒸气。

公开(公告)号：US3822591A

公开(公告)日：1974-07-09

申请号：US23453972

申请日：1972-03-14

申请人： LI C

发明人： LI C

IPC分类号： G01F1/06 ,  G01F1/08 ,  G01F1/10 ,  G01F1/86 ,  G01F3/06 ,  G01F3/10 ,  G01F3/14 ,  G01F15/02 ,  G01F1/00 ,  G01F3/00

CPC分类号： G01F15/02 ,  G01F1/08 ,  G01F3/10 ,  G01F3/14

摘要： A device for metering fluid flow which comprises a fluid flow chamber, fluid inlet and outlet connected thereto, and a moving member cyclically movable with an operative clearance therein and through momentum exchange mechanically interacting with the fluid flow therethrough. The entire circumferential region of the moving member is relatively and automatically recedable from, and advanceable toward, the nearby inside wall of the flow chamber in accordance with, respectively, increasing and decreasing rates of the fluid flow. This feature controllably changes the circumferential clearance therebetween and insures that the cyclic speed of the member is proportional to the fluid flow rate, even at very low flow rates. The member may be provided with frictionless gas or liquid bearings for improved measuring accuracy and reliability. The device may also be mechanically temperature-compensated for measuring fluid mass flow, rather than fluid volumetric flow.

摘要翻译： 一种用于计量流体流动的装置，其包括流体流动室，与其连接的流体入口和出口，以及可随着其中的工作间隙循环移动的运动构件，并且通过与通过其中的流体流动机械相互作用的动量交换。 移动构件的整个圆周区域分别根据流体流动的增加和减少的速率相对地并且自动地从流动室的附近的内壁可向后流动。 该特征可控地改变其间的周向间隙，并且确保即使在非常低的流速下，构件的循环速度与流体流速成比例。 该构件可以设置有无摩擦气体或液体轴承，以提高测量精度和可靠性。 该装置还可以进行机械温度补偿，以测量流体质量流量，而不是流体体积流量。

公开(公告)号：US2531620A

公开(公告)日：1950-11-28

申请号：US7436349

申请日：1949-02-03

申请人： GILBERT & BARKER MFG CO

发明人： GRISE ALFRED L

IPC分类号： G01F3/14 ,  G01F15/02

CPC分类号： G01F15/02 ,  G01F3/14

公开(公告)号：US1970538A

公开(公告)日：1934-08-21

申请号：US57024431

申请日：1931-10-21

申请人： ALVRING OSCAR A

发明人： ALVRING OSCAR A

IPC分类号： G01F3/14

CPC分类号： G01F3/14

公开(公告)号：US08863773B2

公开(公告)日：2014-10-21

申请号：US12611744

申请日：2009-11-03

申请人： Behrokh Khoshnevis

发明人： Behrokh Khoshnevis

IPC分类号： F16K27/00 ,  G01F3/14

CPC分类号： G01F3/14 ,  Y10T137/87314 ,  Y10T137/8741 ,  Y10T137/87917

摘要： A fluid metering device may meter the flow of fluid. The device may have a main chamber and a piston configured and oriented to reciprocate within the main chamber. The piston may be configured and oriented to define a first and a second sub-chamber whose volumes vary inversely as a function of the position of the piston during its reciprocation. The fluid metering device may have a first inlet valve configured to controllably regulate the flow of fluid into the first sub-chamber, a first outlet valve configured to controllably regulate the flow of fluid out of the first sub-chamber, a second inlet valve configured to controllably regulate the flow of fluid into the second sub-chamber, and a second outlet valve configured to controllably regulate the flow of fluid out of the second sub-chamber. A valve controller may be configured to control each of the values in a manner that causes fluid to flow through the each of the sub-chambers at an average rate that substantially tracks a control signal which is delivered to the valve controller.

摘要翻译： 流体计量装置可以测量流体的流量。 该装置可以具有构造和定向成在主室内往复运动的主室和活塞。 活塞可以被构造和定向成限定第一和第二子室，其体积在其往复运动期间作为活塞的位置的函数反向变化。 流体计量装置可以具有构造成可控制地调节进入第一子室的流体流的第一入口阀，构造成可控地调节流体流出第一子室的第一出口阀，配置成 以可控制地调节流入第二子室的流体，以及构造成可控制地调节流体流出第二子室的第二出口阀。 阀控制器可以被配置为以使得流体以基本上跟踪输送到阀控制器的控制信号的平均速率流过每个子室的方式来控制每个值。