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1. 发明授权

US4825198A Method of and apparatus for testing the tightnesses of two valves arranged in a fluid line 失效
标题翻译：用于测试布置在流体管线中的两个阀的密封性的方法和装置
公开(公告)号：US4825198A
公开(公告)日：1989-04-25
申请号：US168262
申请日：1988-03-15
申请人： Jurgen Rolker , Peter Doerfler , Volker Kleine , Johannes Meyknecht
发明人： Jurgen Rolker , Peter Doerfler , Volker Kleine , Johannes Meyknecht
IPC分类号： F16K37/00 , F23N5/24 , G01M3/04 , G01M3/26 , G01M3/28 , G08B21/00
CPC分类号： F16K37/0091 , G01M3/2876 , F23N2025/04 , F23N5/24
摘要： To test the tightnesses of two valves arranged upstream respectively downstream of each other in a fluid line, the pressure conditions in the line portion between the two valves is measured with both valves being closed. Following a certain time after the closure of the two valves, the pressure in the line portion is measured to determine whether pressure is above or below a predetermined limit pressure to conclude whether the one or the other valve is tight. Following this determination, the passageway is opened across the valve taken to be tight and the line portion is then drained or filled. During a measuring time interval then following, a differential pressure sensing device measures whether and how often the pressure in the line portion reaches or passes the limit pressure. The valve not yet taken to be tight is judged tight if the limit pressure is reached or passed once and considered not to be tight if the limit pressure is not reached or passed or reached or passed more than once during the measuring time.
摘要翻译：为了在流体管线中测试彼此分别在上游的上游的两个阀的密封性，在两个阀关闭时测量两个阀之间的管线部分中的压力条件。在两个阀关闭之后的一定时间后，测量管线部分中的压力以确定压力是否高于或低于预定极限压力，以确定一个或另一个阀是否紧固。在该确定之后，通道被打开以跨过阀门，使其被紧固并且然后排出或填充管线部分。在接下来的测量时间间隔期间，差压感测装置测量线路部分中的压力是否以及经过多长时间达到或超过极限压力。如果极限压力达到或超过一次，阀门尚未紧固，则认为不紧固，如果在测量时间内达不到或超过或超过限制压力超过一次，则认为阀门不紧固。

2. 发明授权

US4901567A Shaft device for a bellows-type gas meter 失效
标题翻译：用于波纹管型燃气表的轴装置
公开(公告)号：US4901567A
公开(公告)日：1990-02-20
申请号：US71336
申请日：1987-07-09
申请人： Heinrich Bertke , Reinhard Bruggemann , Peter Hampel , Joachim Schmidt , Werner Pohl , Martin Bronstrup , Hans Kasselmann , Hans Lubbers , Hans Prasse , Gerhard Schamel
发明人： Heinrich Bertke , Reinhard Bruggemann , Peter Hampel , Joachim Schmidt , Werner Pohl , Martin Bronstrup , Hans Kasselmann , Hans Lubbers , Hans Prasse , Gerhard Schamel
IPC分类号： F16C3/18 , G01F3/20 , G01F3/22
CPC分类号： G01F3/223
摘要： A shaft device for a bellows-type gas meter. A first eccentric cam assembly and an element having a radial groove are both coupled to the shaft. A second eccentric cam assembly having an opening is placed on the shaft. A rotatable insert element is inserted in the opening in the second eccentric cam assembly. A follower is provided on the insert element for engaging the radial groove in the element coupled to the shaft. A radial protrusion is provided for axially locking the shaft by rotating the insert element. The angle between the centerline of the first eccentric cam assembly and the centerline of the second eccentric cam assembly is adjusted by rotating the insert element.
摘要翻译：用于波纹管型燃气表的轴装置。第一偏心凸轮组件和具有径向凹槽的元件都联接到轴上。具有开口的第二偏心凸轮组件放置在轴上。可旋转插入元件插入第二偏心凸轮组件的开口中。随动件设置在插入元件上，用于接合联接到轴的元件中的径向槽。提供径向突起以通过旋转插入元件来轴向地锁定轴。通过旋转插入元件来调节第一偏心凸轮组件的中心线与第二偏心凸轮组件的中心线之间的角度。

3. 发明授权

US5433117A Ultrasonic gas meter 失效
标题翻译：超声波燃气表
公开(公告)号：US5433117A
公开(公告)日：1995-07-18
申请号：US92258
申请日：1993-07-15
申请人： Werner Taphorn , Alf Zips , Manfred Bunnemeyer , Veit Middelberg , Andreas Kammerahl
发明人： Werner Taphorn , Alf Zips , Manfred Bunnemeyer , Veit Middelberg , Andreas Kammerahl
IPC分类号： G01F1/66 , G01F15/00
CPC分类号： G01F15/00 , G01F1/662
摘要： The meter has a housing with an inlet and an outlet. The housing is divided between the inlet and the outlet by a partition wall through which a measuring tube with a rectangular cross-section passes. Gas flows through the measuring tube, through which ultrasonic pulses are simultaneously transmitted by transducers disposed on the end walls. The flow rate of the gas is determined from the difference in the time of flight of the bidirectional sound pulses. The gas is directed into the measuring tube through two guidance ducts which run along both longitudinal sides of the measuring tube. Said guidance ducts are also rectangular in cross-section and each contain a flow rectifier.
摘要翻译：仪表有一个带入口和出口的外壳。壳体通过分隔壁在入口和出口之间分隔开，具有矩形横截面的测量管穿过该分隔壁。气体流经测量管，超声波脉冲通过设置在端壁上的换能器同时传输。气体的流量由双向声音脉冲的飞行时间差确定。气体通过沿着测量管的两个纵向侧延伸的两个导向管道被引导到测量管中。所述引导管的横截面也是矩形，并且每个都包含流动整流器。

4. 发明授权

US5777237A Fluid flow meter 失效
标题翻译：流体流量计
公开(公告)号：US5777237A
公开(公告)日：1998-07-07
申请号：US492058
申请日：1995-08-28
申请人： James Digby Yarlet Collier , Christopher Davies , Christopher James Newton Fryer , Alain Henri Waha
发明人： James Digby Yarlet Collier , Christopher Davies , Christopher James Newton Fryer , Alain Henri Waha
IPC分类号： G01F1/66 , G01P5/24 , G01F1/00
CPC分类号： G01P5/245 , G01F1/662 , G01F1/667 , G01F1/668 , G01P5/248
摘要： A fluid flow meter comprises a pair of transducers spaced apart in the direction of fluid flow. A transmitter causes acoustic signals to be transmitted in both directions through the fluid by the transducers. A processor determines information relating to the fluid flow by monitoring the time of flight of acoustic signals received by the transducers. Part of the space between the transducers defines a flow path consisting of a flow structure having a plurality of parallel fluid flow passages which extend axially in the direction of flow, wherein the cross-sectional diameters of the passages are chosen such that substantially plane acoustic waves only are transmitted through the passages by the fluid, and wherein under working conditions the fluid flows through each passage such that the ratio of the volume flow rate through the passage to the total volume flow rate remains substantially constant with respect to the total volume flow rate.
摘要翻译： PCT No.PCT / GB94 / 00157 Sec。 371日期：1995年8月28日 102（e）日期1995年8月28日PCT 1994年1月27日PCT PCT。公开号WO94 / 17372 日期1994年8月4日流体流量计包括沿流体流动方向间隔开的一对换能器。发射器使得声信号通过换能器通过流体在两个方向上传播。处理器通过监测由换能器接收的声学信号的飞行时间来确定与流体流动有关的信息。换能器之间的空间的一部分限定了流动路径，该流动路径由具有沿流动方向轴向延伸的多个平行流体流动通道的流动结构组成，其中通道的横截面直径选择为使得基本上平面的声波仅通过流体通过通道传输，并且其中在工作条件下，流体流过每个通道，使得通过通道的体积流量与总体积流量之比相对于总体积流量保持基本恒定。

5. 发明授权

US4856331A Bellows-type gas meter 失效
标题翻译：波纹管型燃气表
公开(公告)号：US4856331A
公开(公告)日：1989-08-15
申请号：US71332
申请日：1987-07-09
申请人： Horst Roese , Heinrich Bertke , Reinhard Bruggemann , Peter Hampel
发明人： Horst Roese , Heinrich Bertke , Reinhard Bruggemann , Peter Hampel
IPC分类号： F16H25/14 , G01F3/20 , G01F3/22
CPC分类号： G01F3/22
摘要： A bellows-type gas meter comprises two compartments each having a diaphragm as well as a shaft common to said two compartments, said shaft having two eccentric cam assemblies, one of said eccentric cam assemblies being connected with the crank assemblies of said diaphragms and the other one of said eccentric cam assemblies being connected with the crank assemblies of two valves creating in a cyclic mode passages between the four chambers into which said two compartments are divided by said diaphragms and a gas inlet or a gas outlet respectively, said two eccentric cam assemblies being displaced relative to each other by an angle so that each such valve, during the chamber filling cycle, closes before the diaphragm operating in conjunction therewith moves into its final position, the eccentric cam assembly connected with said valves being provided with a disk cam assembly for each such valve, said disk cam assemblies being accommodated on said common shaft, the form of each such disk cam engaging with a substantially longitudinal opening of the crank assembly for the valve operated thereby not being circular so that the opening mode of each such valve is in a relationship with the diaphragm mode of motion, thereby keeping the error of the bellows-type meter small.
摘要翻译：波纹管式燃气表包括两个隔室，每个隔室具有隔膜以及与所述两个隔室共用的轴，所述轴具有两个偏心凸轮组件，所述偏心凸轮组件中的一个与所述隔膜的曲柄组件连接，另一个所述偏心凸轮组件中的一个与两个阀门的曲柄组件连接，在四个室之间以循环模式通道形成，所述两个隔室分别由所述隔膜分开并分别插入气体入口或气体出口，所述两个偏心凸轮组件相对于彼此移位一定角度，使得每个这样的阀在腔室填充循环期间关闭，之后隔膜与其一起运动并移动到其最终位置，与所述阀连接的偏心凸轮组件设置有盘式凸轮组件对于每个这样的阀，所述盘形凸轮组件容纳在所述公共轴上，每个这样的盘的形式 m与曲柄组件的基本上纵向的开口接合，用于所操作的阀，因此不是圆形的，使得每个这样的阀的打开模式与膜片运动方式成关系，从而保持波纹管式计量器的误差小。

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