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公开(公告)号：US5456121A
公开(公告)日：1995-10-10
申请号：US137560
申请日：1993-10-18
申请人： Hyok S. Lew , Yon S. Lew , Yon K. Lew
发明人： Hyok S. Lew , Yon S. Lew , Yon K. Lew
摘要： A pivotable vane flowmeter comprises at least one pivotable vane disposed pivotably about a pivot axis parallel to the the direction of fluid flow and experiencing a fluid dynamic torque created by the fluid flow, a bias spring or counter-weight providing a bias torque counter-acting the fluid dynamic torque, and a rotary position sensor detecting the rotary position of the pivotable vane about the pivot axis, wherein the dynamic pressure of the fluid flow is determined as a function of the rotary position of the pivotable vane about the pivot axis, and the time rate of the fluid flow is determined from a combination of the dynamic pressure of the fluid flow and the known or measured value of the fluid density, or from another combination of the dynamic pressure of the fluid flow and the frequency of rotation of a rotating turbine or propeller installed in conjunction with the pivotable vane flowmeter.
摘要翻译： 可枢转叶片流量计包括至少一个可枢转的叶片，该枢转叶片围绕平行于流体流动方向的枢转轴线可枢转地旋转，并且经历由流体流动产生的流体动力学扭矩，偏置弹簧或配重提供偏置扭矩反作用 流体动力学扭矩和旋转位置传感器，其检测可枢转叶片围绕枢转轴线的旋转位置，其中流体流动的动态压力被确定为可枢转叶片围绕枢转轴线的旋转位置的函数，以及 流体流动的时间速率由流体流动的动态压力和流体密度的已知或测量值的组合确定，或者由流体流动的动态压力和旋转频率的另一组合 旋转涡轮机或螺旋桨与可转动叶片流量计一起安装。
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公开(公告)号：US5425390A
公开(公告)日：1995-06-20
申请号：US132562
申请日：1993-10-06
申请人： Douglas T. Carson
发明人： Douglas T. Carson
IPC分类号： G01F1/00 , G01F1/26 , G01F1/28 , G01F1/52 , G01F15/12 , G01N1/10 , G01N1/20 , G05D7/06 , G05D16/20 , G05D16/04
CPC分类号： G05D7/067 , G01F1/002 , G01F1/26 , G01F1/28 , G01F1/52 , G01F15/12 , G01N1/2035 , Y10T137/0396 , Y10T137/7738 , Y10T137/86413
摘要： To measure flow rates, the cross-sectional shape of the flow path is changed by inserting a multiple position gate into the flow path and altering the position of the gate to maintain the head of liquid constant with a reduced flow cross section. The position of the multiple position gate is correlated with the depth as measured with a bubbler to provide an indication of flow rate. To purge the bubbler line, a purge tank is located near the bubbler line. At timed periods or as manually initiated the controller causes an increase in pressure in accumulator portion of the purge tank. When a predetermined pressure is reached, a purge valve in the purge tank opens, rapidly allowing a burst of air at a substantial pressure and velocity to flow through the bubbler line to remove any material adhering to the bubbler outlet port. For this purpose, the purge tank acts as an accumulator until the pressure in the tank against the effective area of the inner portion of a purge valve element overcomes the resisting force of a spring, at which time the valve element moves slightly, permitting air to flow over a larger area of the valve element. This increases the area receiving the accumulator air pressure to include an outer portion of the valve element and this increased effective pressure area of the valve increases the force rapidly to cause the valve to snap open.
摘要翻译： 为了测量流量，流路的横截面形状通过将多位置浇口插入到流动路径中而改变，以改变浇口的位置以保持液体的头部以减小的流动横截面恒定。 多位置门的位置与用起泡器测量的深度相关以提供流速的指示。 为了清除起泡器管线，清洗槽位于起泡器线附近。 在定时时间段或手动启动时，控制器会导致清洗槽的蓄液部分的压力增加。 当达到预定压力时，净化罐中的净化阀打开，迅速允许以相当大的压力和速度爆发的空气流过起泡器管线，以去除附着在起泡器出口上的任何材料。 为此，净化槽作为蓄能器，直到罐内的压力相对于净化阀元件的内部的有效区域的压力克服了弹簧的阻力，此时阀元件略微移动，允许空气 流过阀元件的较大区域。 这增加了接收蓄能器空气压力的面积以包括阀元件的外部部分，并且阀的这种增加的有效压力面积迅速增加，以使阀门卡通。
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公开(公告)号：US5419189A
公开(公告)日：1995-05-30
申请号：US164925
申请日：1993-12-10
申请人： Hyok S. Lew , Yon S. Lew , Hyon S. Lew
发明人： Hyok S. Lew , Yon S. Lew , Hyon S. Lew
摘要： A flowmeter comprises an output cut-off circuit controlled by a command signal generated by a flow switch, wherein the flow switch generates a command signal switching on the transmission of an electrical signal representing the flow rate of media to an output terminal, when the flow rate of media being measured by the flowmeter is greater than a preset threshold value, and switches off the transmission of the electrical signal representing the flow rate of media to the output terminal, when the flow rate of media is less than the preset threshold value.
摘要翻译： 流量计包括由流量开关产生的命令信号控制的输出截止电路，其中流量开关产生一个命令信号，该命令信号在表示流体流向媒体的电信号时输出到输出终端 当介质的流量小于预设的阈值时，由流量计测量的介质的速率大于预设的阈值，并且将代表介质的流速的电信号的传输切换到输出端。
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公开(公告)号：US5351556A
公开(公告)日：1994-10-04
申请号：US113197
申请日：1993-08-30
申请人： Yon S. Lew , Hyok S. Lew
发明人： Yon S. Lew , Hyok S. Lew
摘要： A compound electronic filter for conditioning an alternating electrical signal generated by vortex shedding in a vortex flowmeter has a first stage filter comprising a first plurality of electronic filters respectively including a first plurality of electronic switches and a second stage filter comprising a second plurality of electronic filters respectively including a second plurality of electronic switches, wherein the first plurality of electronic switches switching on and off the first plurality of electronic filters one at a time are controlled by a first command signal generated from the frequency of the output signal from the first stage filter, and the second plurality of electronic switches switching on and off the second plurality of electronic filters one at a time are controlled by a second command signal generated from the frequency of the output signal from the first stage filter.
摘要翻译： 一种用于调节在涡街流量计中由涡流脱落产生的交流电信号的复合电子滤波器具有包括分别包括第一多个电子开关的第一多个电子滤波器的第一级滤波器和包括第二多个电子滤波器的第二级滤波器 分别包括第二多个电子开关，其中一次一个接通和断开第一多个电子滤波器的第一多个电子开关由从第一级滤波器的输出信号的频率产生的第一命令信号控制 并且一次一个接通和断开第二多个电子滤波器的第二多个电子开关由从第一级滤波器的输出信号的频率产生的第二命令信号控制。
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公开(公告)号：US5343743A
公开(公告)日：1994-09-06
申请号：US543771
申请日：1990-12-31
摘要： An asymmetrical displacement flowmeter comprises a streamlined body or assembly 1 which floats or is submerged in liquid 3 and is subjected to frictional and dynamic pressure forces caused by liquid flow and tilts about axis 9 near the leading end of the body being anchored relative to the flow through tie 7 and anchor 6 or other means acting through axis 9. Degree of tilt from the vertical of body 1 about the axis is affected by the gravity restoring moment acting about the axis and can be adjusted by movement of weight 14 within the body. Pointer 12 attached to pendulum 13 about axis 9 indicates velocity of flow on scale 2 attached to body 1. In open channel depth is measured on scale 11. In closed conduit, body rotates about shaft through wall and may be folded during installation. Velocity and depth may be transmitted electronically.
摘要翻译： PCT No.PCT / GB89 / 00223 Sec。 371 1990年12月31日第 102（e）日期1990年12月31日PCT 1989年3月6日PCT公布。 出版物WO90 / 01146 日期：1990年2月8日。不对称位移流量计包括流线型的主体或组件1，其浮动或浸没在液体3中并且受到由液体流动引起的摩擦和动态压力并在轴线9的前端附近倾斜 主体相对于通过领带7和锚固件6或其它通过轴线9的装置的流动被锚定。主体1的垂直方向围绕轴线的倾斜度受围绕轴线作用的重力恢复力矩的影响，并且可以通过运动来调节 体重14之内。 指针12围绕轴线9连接在摆锤13上，表示标尺2附着在本体1上的流速。开放通道深度以刻度尺11测量。在封闭导管中，主体围绕轴通过壁旋转，并可能在安装过程中折叠。 速度和深度可以电子传输。
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公开(公告)号：US5297945A
公开(公告)日：1994-03-29
申请号：US963136
申请日：1992-10-19
摘要： An oval gear pump for shear-sensitive fluids particularly suited for use in dispensing metered amounts of food syrups, condiments, or other thick or viscous liquids. The viscosity of some of such materials tends to degrade when excessive agitation is incurred. The gear pump minimizes such agitation by sweeping integrated masses of substantial volume between the inlet and the outlet. The pumping system also provides a flow-sensing device including a tubular magnet movable against spring pressure by fluid flow to an operated position. When the magnet is in the operated position, an adjacent external switch is operated to produce a signal indicating flow. The pumping system is particularly adapted for use in connection with ice cream dispensing machines.
摘要翻译： 用于剪切敏感流体的椭圆齿轮泵，特别适合用于分配计量的食品糖浆，调味品或其他厚或粘稠液体。 当发生过度的搅动时，一些这种材料的粘度趋于降低。 齿轮泵通过在入口和出口之间扫过相当体积的积分质量来最小化这种搅动。 泵送系统还提供了一种流量感测装置，其包括可通过流体流动到操作位置的弹簧压力而可移动的管状磁体。 当磁体处于操作位置时，相邻的外部开关被操作以产生指示流动的信号。 泵送系统特别适用于冰淇淋分配机器的使用。
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公开(公告)号：US5279163A
公开(公告)日：1994-01-18
申请号：US621653
申请日：1990-12-03
IPC分类号： A61B5/087 , A61H31/00 , G01D5/243 , G01F1/28 , G01F1/38 , G01K5/46 , G01L5/00 , G01L9/00 , G01L9/04 , G01L9/10 , G01L9/12 , G01L15/00 , G01L19/00 , G01P15/03 , G01P15/08 , G01P15/11
CPC分类号： A61B5/087 , A61H31/005 , G01D5/243 , G01F1/28 , G01F1/383 , G01K5/46 , G01L15/00 , G01L19/0007 , G01L5/0028 , G01L9/0058 , G01L9/007 , G01L9/0072 , G01L9/04 , G01L9/10 , G01L9/12 , G01P15/038 , G01P15/0891 , G01P15/11 , A61H2201/5007 , A61H2201/5043 , A61H2201/5058 , A61H2201/5071
摘要： A sensing system including a sensing device with cooperating electrical components which move relative to each other in response to a sensed environmental parameter to yield a reactance signal, which is transmitted to a remotely located processor having an oscillator for receiving the transmitted signal and generating a transduced signal whose value corresponds to the value of the environmental parameter.
摘要翻译： 一种感测系统，包括具有协同电气部件的感测装置，其响应于感测的环境参数相对于彼此移动以产生电抗信号，所述电抗信号被发送到具有用于接收发射信号的振荡器的远程处理器，并产生转导 信号的值对应于环境参数的值。
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58.发明授权
公开(公告)号：US5269344A
公开(公告)日：1993-12-14
申请号：US752479
申请日：1991-09-06
申请人： George J. McHugh
发明人： George J. McHugh
CPC分类号： A62C37/50 , A62C35/68 , G01F1/28 , Y10T137/8326 , Y10T137/8359 , Y10T137/87265
摘要： A supply valve and an arrangement for supplying, testing and draining a fire suppression water sprinkler system includes a supply valve which has a valve member with at least first, second and third ports. The selective rotation of the valve member varies communication between the inlet of the valve and one or more outlets for the valve. A sensor for detecting a flow of water through the supply valve is provided within valve member and has a member which is generally aligned with a turning axis of the valve member. The flow sensor arrangement may be provided in a valve of general utility.
摘要翻译： PCT No.PCT / US90 / 01114 Sec。 371日期1991年9月6日 102（e）1991年9月6日PCT PCT日期为1990年3月8日。供应阀和用于供应，测试和排放灭火喷水灭火系统的装置包括供给阀，其具有至少第一， 第二和第三个港口。 阀构件的选择性旋转改变了阀的入口与用于阀的一个或多个出口之间的连通。 用于检测通过供给阀的水流的传感器设置在阀构件内并且具有与阀构件的大致对齐的构件。 流量传感器装置可以设置在一般用途的阀中。
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59.发明授权Method of and apparatus for measuring fixed amounts of fluid in a pulsating fluid stream 失效用于测量流体在固定流体流中的固定量的方法和装置
公开(公告)号：US5214964A
公开(公告)日：1993-06-01
申请号：US749193
申请日：1991-08-23
申请人： Johannes Hartfiel
发明人： Johannes Hartfiel
摘要： A quantity flowmeter for measuring the volume of flow of a pulsating fluid stream has a conduit for a freely movable float which is biased against a stop and is moved away from the stop by successive pulses or droplets of the pulsating fluid stream. The float carries or includes a permanent magnet or an electromagnet, and the conduit is surrounded by a self-inductance coil with turns having a density which varies in or counter to the direction of movement of the float away from the stop. When a pulse causes the float to move away from the stop, voltage signals which are generated by the coil and indicate the speed of movements of the float are transmitted to an integrator which transmits integrated signals to a computer. The computer calculates the volume of flow of successive pulses.
摘要翻译： 用于测量脉动流体流的流量的数量流量计具有用于可自由移动的浮子的导管，其被偏压抵靠止动件并且通过脉动流体流的连续脉冲或液滴从停止件移开。 浮子携带或包括永磁体或电磁体，并且导管被自感线圈围绕，匝的密度与浮子远离止动件的移动方向变化或相反。 当脉冲使浮子离开停止点时，由线圈产生并指示浮子的移动速度的电压信号被传送到将积分信号传输到计算机的积分器。 计算机计算连续脉冲的流量。
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公开(公告)号：US5183983A
公开(公告)日：1993-02-02
申请号：US855213
申请日：1992-03-20
申请人： David G. Knop
发明人： David G. Knop
CPC分类号： H01H35/405 , H01H11/0012
摘要： A basic housing for a fluid flow monitoring assembly comprising a sensing leakproof elongate hollow body formed from a non-magnetic, metallic material and pivotally mounting internally of same a vane assembly that at one end includes a vane adapted to be inserted into a fluid flow of piping, with the vane assembly being spring biased to pivot oppositely of the direction of fluid flow, about its pivot mounting, for zero or reduced fluid flow conditions, and at its other end including a permanent magnet for electrically actuating a switch mechanism; such elongate sensing body defines an open end through which the vane projects and closed a end adjacent the magnet, which elongate body adjustably mounts crosswise thereof at its closed end within the permeability of the magnet for set point adjustment purposes a novel flow switch assembly comprising a plastic housing that is also leakproof and potably mounts in hermetically sealed relation a commercially available reed type off-on switch in electrical circuit arrangement with lead wires having ends that extend from one end of such flow switch assembly, for connection in optional electrical circuiting of a variety of types, which flow switch assembly is in field adjustable and can be set so the reed switch is Normally Open or Normally Closed, with the switch assembly housing including both indicia and flanging for setting the same precisely at such Normally Open or Normally Closed positions; the switch assembly is also arranged for full removal from the unit basic housing for inspection or replacement without the need to shut down the equipment to which the monitor assembly is applied.
摘要翻译： 一种用于流体流动监测组件的基本壳体，包括由非磁性金属材料形成的传感防漏细长型中空体，并在其内部可枢转地安装相同的叶片组件，所述叶片组件的一端包括适于插入到 管道，其中叶片组件被弹簧偏置以绕流体流动方向相对于流体流动方向枢转枢转安装，用于零或减少的流体流动条件，并且在其另一端包括用于电动致动开关机构的永磁体; 这种细长感测体限定开放端，叶片通过该端部突出并闭合与磁体相邻的端部，该细长体在其闭合端处可调节地安装在磁体的磁导率内，用于设定点调整目的，该新型流量开关组件包括： 塑料外壳也是防漏的，并且以气密密封的方式安装在具有电线的布置中的商业上可获得的簧片型开关开关，导线具有从这种流量开关组件的一端延伸的端部，用于在可选的电路中连接 各种类型的流量开关组件在现场可调节，并且可以设置为使簧片开关为常开或常闭，开关组件外壳包括标记和凸缘，用于在正常打开或常闭位置精确设置 ; 开关组件还布置成用于从单元基本壳体完全移除以进行检查或更换，而不需要关闭施加监视器组件的设备。
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