公开(公告)号：US11768090B2

公开(公告)日：2023-09-26

申请号：US17599972

申请日：2020-03-09

申请人： ZIEHL-ABEGG SE

发明人： Frieder Loercher ,  Alexander Herold

IPC分类号： F04D27/00 ,  F04D17/16 ,  G01F1/80 ,  G01F1/10 ,  G01F1/84 ,  G01F1/11 ,  G01F1/90 ,  G01F1/12 ,  G01F1/82 ,  F04D29/28 ,  F04D29/42 ,  F04D19/00 ,  F04D29/52 ,  F04D25/06 ,  F24F110/30

CPC分类号： F04D27/001 ,  F04D17/16 ,  F04D19/002 ,  F04D25/0666 ,  F04D27/00 ,  F04D27/004 ,  F04D29/281 ,  F04D29/4213 ,  F04D29/4226 ,  F04D29/526 ,  G01F1/10 ,  G01F1/103 ,  G01F1/11 ,  G01F1/12 ,  G01F1/125 ,  G01F1/80 ,  G01F1/82 ,  G01F1/8454 ,  G01F1/90 ,  F24F2110/30

摘要： A fan, in particular axial fan and preferably backward-curved radial fan, having an impeller equipped with blades, an electric motor for rotating the impeller and a device for determining the airflow when the impeller is rotating. The device for determining the airflow includes a volume flow measuring wheel arranged in the air flow, which is arranged upstream of the impeller on the inflow side. The air volume flow is calculated or derived from the rotational speed of the volume flow measuring wheel.

公开(公告)号：US20180011068A1

公开(公告)日：2018-01-11

申请号：US15713512

申请日：2017-09-22

申请人： Michael Lyon

发明人： Michael Lyon

IPC分类号： G01N33/00

CPC分类号： G01N33/0008 ,  G01F1/12

摘要： An interlock data collection and calibration system has a device computer, a gas delivery system, and a data port. The device computer has a computer processor and a computer memory. The gas delivery system delivers a gas sample to an ignition interlock device. The data port is operably connected with the device computer for enabling sample data from the ignition interlock device to be transmitted to the device computer. A calibration program operably installed on the computer memory receives the sample data, calibrates the ignition interlock device, and generates confirmation data, which is stored in a local database.

公开(公告)号：US09476740B2

公开(公告)日：2016-10-25

申请号：US14490412

申请日：2014-09-18

申请人： Mueller International, LLC

发明人： Szabolcs Zigovszki ,  Thomas Cullinan

IPC分类号： G01D4/18 ,  G01D7/00

CPC分类号： G01D7/00 ,  G01D3/08 ,  G01F1/075 ,  G01F1/08 ,  G01F1/115 ,  G01F1/12

摘要： Technologies are described herein for detecting a reverse flow condition in a meter and providing an associated alert. An amount of reverse flow in the meter is accumulated over a time period. If the accumulated amount of reverse flow over the time period exceeds a threshold value, a reverse flow alert is provided.

摘要翻译： 本文描述了用于检测仪表中的逆流条件并提供相关警报的技术。 在一段时间内积累了仪表中的反向流量。 如果在该时间段内的累积反向流量超过阈值，则提供反向流动警报。

公开(公告)号：US07093484B2

公开(公告)日：2006-08-22

申请号：US11039023

申请日：2005-01-20

申请人： Roger Frank

发明人： Roger Frank

IPC分类号： G01F3/08 ,  G01F3/12

CPC分类号： G01F15/18 ,  G01F1/12 ,  G01F25/0007

摘要： A water meter has a measurement insert disposed in a meter housing, a measurement display, an intake connection and a discharge connection. An impeller is disposed on a shaft in a measurement insert housing, also referred to as impeller bowl. A first shaft end of the shaft interacts with the measurement display. The meter housing has, on a side facing away from the first shaft end, referred to as a lower side below, recesses or openings for receiving fasteners for fastening a cover, and a calibrating device for adjusting the measurement display. The calibrating device is inserted into at least one of the openings that can be closed by the cover.

摘要翻译： 水表具有设置在仪表壳体，测量显示器，进气连接和排出连接中的测量插入件。 叶轮设置在测量插入件壳体中的轴上，也称为叶轮碗。 轴的第一轴端与测量显示器相互作用。 仪表壳体在远离第一轴端的一侧被称为下侧，用于接收用于紧固盖的紧固件的凹部或开口，以及用于调节测量显示的校准装置。 校准装置被插入可以被盖封闭的至少一个开口中。

公开(公告)号：US06487919B1

公开(公告)日：2002-12-03

申请号：US09992638

申请日：2001-11-06

申请人： Paul K. Edwards

发明人： Paul K. Edwards

IPC分类号： G01F1500

CPC分类号： G01F1/12 ,  G01F1/115 ,  G01F15/006

摘要： A turbine type flow meter has a four-vaned plastic torpedo-shaped turbine mounted by portions of the plastic turbine within a housing between first and second bearings. The turbine supports a pair of magnets of the Neodymium-Iron-Boron type which rotate with the turbine. An upstream portion of the housing incorporates a sensor cavity, which is sealed from a flow cavity containing the turbine. A connector and an attached printed circuit board with a Hall effect sensor is mounted within the sensor cavity closely spaced from the rotating magnets. The sensor housing is constructed from two parts. Each part of the housing incorporates mating structures that are designed for joining by spin welding.

摘要翻译： 涡轮式流量计具有由第一和第二轴承之间的壳体内的塑料涡轮机的一部分安装的四叶形塑料鱼雷形涡轮机。 涡轮支撑一对与涡轮旋转的钕铁硼型磁体。 壳体的上游部分包含传感器腔，该传感器腔与包含涡轮的流动腔密封。 具有霍尔效应传感器的连接器和附接的印刷电路板安装在与旋转磁体紧密隔开的传感器腔内。 传感器外壳由两部分组成。 壳体的每个部分都包含通过旋转焊接设计用于接合的配合结构。

公开(公告)号：US5509305A

公开(公告)日：1996-04-23

申请号：US396579

申请日：1995-03-01

申请人： Zaki D. Husain ,  Helmet Zenger ,  F. Dale Goodson ,  Donald J. Wass

发明人： Zaki D. Husain ,  Helmet Zenger ,  F. Dale Goodson ,  Donald J. Wass

IPC分类号： G01F1/10 ,  G01F1/115 ,  G01F1/12 ,  G01F7/00

CPC分类号： G01F1/115 ,  G01F1/10 ,  G01F1/12

摘要： A meter is provided for measuring the volumetric flow of a fluid in a conduit. The meter comprises a pair of turbine assemblies. Each of the turbine assemblies are adapted to have a speed of rotation representative of a volumetric fluid flow that is independent of the other turbine assembly. A flow randomizer is located between the pair of turbine assemblies. The flow randomizer is operable to eliminate substantially all flow effects of one of the turbine assemblies upon the other turbine assembly. Means are provided for transducing the speed of rotation of at least one of the turbine assemblies.

摘要翻译： 提供了用于测量管道中的流体的体积流量的仪表。 该仪表包括一对涡轮组件。 每个涡轮机组件适于具有代表独立于其它涡轮组件的体积流体流动的旋转速度。 流动随机化器位于一对涡轮机组件之间。 流动随机化器可操作以消除涡轮组件中的一个在其它涡轮机组件上的基本上所有的流动效应。 提供了用于转换至少一个涡轮机组件的旋转速度的装置。

公开(公告)号：US5207088A

公开(公告)日：1993-05-04

申请号：US685589

申请日：1991-04-11

申请人： Paul W. Geery

发明人： Paul W. Geery

IPC分类号： G01F1/08 ,  G01F1/12 ,  G01F25/00

CPC分类号： G01F25/0053 ,  G01F1/08 ,  G01F1/12 ,  G01F25/003

摘要： A properly designed expansion chamber is mounted in a flowmeter test equipment configuration to quench or prevent pulsations from resonating the acoustic cavities in the configuration and, thereby, eliminate resonation errors in testing the accuracy of the flowmeter. The invention is particularly though not exclusively adapted to use with a testing configuration including a prover master meter and a conduit connecting the inlet of the prover master meter to the outlet of the gaseous flowmeter being tested. In the practice of the present invention, the pulsation frequencies can be quenched before the acoustic cavity within the conduit can be excited by introducing an expansion chamber at one or both ends of the conduit.

摘要翻译： 正确设计的膨胀室安装在流量计测试设备配置中以淬火或防止脉动在配置中使声腔谐振，从而消除测试流量计精度的谐振误差。 特别地，本发明特别适用于包括证明器主计量器和将证明器主表的入口连接到被测气体流量计的出口的导管的测试配置。 在本发明的实践中，可以通过在导管的一端或两端引入膨胀室来激发导管内的声腔之前的脉动频率。

公开(公告)号：US4459861A

公开(公告)日：1984-07-17

申请号：US364531

申请日：1982-04-01

申请人： Helmuth Hoffmann

发明人： Helmuth Hoffmann

IPC分类号： G01F1/10 ,  G01F1/12

CPC分类号： G01F1/12

摘要： A measuring turbine with a turbine rotor arranged in a flow channel of a measuring tube comprises flow rectifiers, a turbine rotor and an adjusting element capable of influencing the rotating velocity of the turbine rotor through the fluid to be measured. The adjusting element is located after the discharge flow rectifier in the flow channel and is designed to also serve as the discharge connection and the connector fitting. The adjusting element is provided with an element varying the flow cross section of a definite size. The adjusting element preferably has an internal cone with an orifice plate in front of it in the direction of the flow.

摘要翻译： 具有布置在测量管的流动通道中的涡轮转子的测量涡轮机包括流量整流器，涡轮转子和能够影响通过待测流体的涡轮转子的转速的调节元件。 调节元件位于流动通道中的排放流动整流器之后，并且被设计成也用作排出连接和连接器配件。 调节元件设置有改变具有一定尺寸的流动横截面的元件。 调节元件优选地具有在流体的方向上在其前面具有孔板的内锥体。

公开(公告)号：US4450726A

公开(公告)日：1984-05-29

申请号：US342000

申请日：1982-01-06

申请人： Seppanen Seppo

发明人： Seppanen Seppo

IPC分类号： G01F1/12 ,  G01K17/10 ,  G01F1/82

CPC分类号： G01F1/12

摘要： A measuring apparatus is disclosed which is operated by the flowing of a medium. The apparatus comprises a rotor fitted coaxially within a flow pipe, a tachometer of the rotor and a flow guide member comprising a director and a controller. By means of these members the flow can be divided, according to the message received from a sensing element, into two components, of which at least one is screw-shaped or spiralling. By employing such a guide member the rotor is easily started, and its rotating speed is directly comparable to the quantity to be measured, as well as to volume flow. The sensing element can be for example a spiral-shaped bimetallic member reacting to changes in the flow temperature, the member being attached at its one end to the flow pipe and at its other end to the director. According to changes in the temperature the sensing element revolves around the director with respect to the controller, and the mutual proportion of the flow components is changed, as well as the rotating speed of the rotor.

摘要翻译： PCT No.PCT / FI81 / 00034 Sec。 371日期1982年1月6日 102（e）日期1982年1月6日PCT提交1981年5月18日PCT公布。 公开号WO81 / 03378 日期：1981年11月26日。公开了一种通过介质的流动操作的测量装置。 该装置包括同轴地安装在流管内的转子，转子的转速计和包括导向器和控制器的导流构件。 通过这些构件，根据从感测元件接收的消息，可以将流量分成两个部件，其中至少一个是螺旋形或螺旋形的。 通过采用这样的引导构件，转子容易启动，并且其转速与被测量直接相当，以及体积流量。 感测元件可以是例如螺旋形双金属构件，其响应于流动温度的变化，该构件的一端附接到流动管并且在另一端附接到导向器。 根据温度的变化，感测元件相对于控制器围绕导向器旋转，并且流动分量的相互比例改变，以及转子的旋转速度。

公开(公告)号：US4011757A

公开(公告)日：1977-03-15

申请号：US577188

申请日：1975-05-14

申请人： Wilfried Baatz

发明人： Wilfried Baatz

IPC分类号： G01F1/12 ,  G01F1/72 ,  G01F1/06 ,  G01F15/02

CPC分类号： G01F1/72 ,  G01F1/12

摘要： A device for bypassing flow rate pulsations resulting in reverse flow and abrupt flow rate surges around a volumetric flow rate transducer includes a housing defining a chamber. One end of the chamber is coupled in fluid communication with the inlet or upstream side of the transducer while the other end of the chamber is coupled in fluid communication with the outlet or downstream side of the transducer. A flexible, fluid impervious diaphragm is mounted in the housing so as to divide the chamber into two compartments. The diaphragm is affixed to the walls of the chamber so as to maintain a fluid seal between the two compartments of the chamber. When a forward flow rate pulsation occurs the resultant rise in the fluid pressure differential between the upstream and downstream compartments of the chamber will shift the diaphragm toward the downstream compartment. As the diaphragm moves, fluid is forced out of the downstream compartment and into the fluid stream on the downstream side of the transducer. After the pulse reaches its maximum and the flow begins to reverse, the reverse flowing fluid will drive the diaphragm back toward the compartment coupled to the upstream side of the transducer. As this occurs, the volume of the fluid that was driven into this chamber during the flow rate increase is exhausted from the upstream side of the chamber and is driven into the fluid stream upstream of the transducer. The net effect of the operation of the pulsation bypass device is to allow flow rate pulsations resulting in reverse flow to pass through the diaphragm, isolating the flow transducer from the pulsations by allowing the diaphragm to flex against the biasing spring and time averaging the flow through the transducer. Thus, the transducer is not exposed to sudden increases or decreases in flow rate.

摘要翻译： 用于绕过导致逆向流动的流速脉动的装置和围绕体积流量换能器的突然流速冲击的装置包括限定腔室的壳体。 腔室的一端与换能器的入口或上游侧流体连通地联接，而腔室​​的另一端与换能器的出口或下游侧流体连通地连接。 柔性的，不透液体的隔膜安装在壳体中，以将腔室分成两个隔间。 隔膜固定在腔室的壁上，以便在室的两个室之间保持流体密封。 当正向流速脉动发生时，腔室的上游和下游隔室之间的流体压力差的最终上升将使膜片向下游隔室移动。 当隔膜移动时，流体被迫离开下游隔室并进入换能器下游侧的流体流中。 在脉冲达到最大值并且流量开始反向后，反向流动的流体将驱动隔膜返回耦合到换能器上游侧的隔室。 当这种情况发生时，在流速增加期间被驱动到该腔室中的流体的体积从腔室的上游侧排出并被驱动到换能器上游的流体流中。 脉动旁路装置的操作的净影响是允许导致反向流动的流速脉动通过隔膜，通过允许隔膜挠曲偏置弹簧并且使流过的时间平均，从而将流量传感器与脉动隔离 传感器。 因此，传感器不会暴露于流量的突然增加或减少。