公开(公告)号：US06668620B2

公开(公告)日：2003-12-30

申请号：US10034405

申请日：2001-12-28

申请人： Mark R. Pond ,  Justin E. Arney ,  George T. Fiala

发明人： Mark R. Pond ,  Justin E. Arney ,  George T. Fiala

IPC分类号： G01M308

CPC分类号： G01M3/2876

摘要： A test for hydraulic leakage in hydraulic components uses a rate testing device having two circuits including a filling circuit that fast-fills the component with hydraulic fluid and a leakage circuit that measures the leakage rate of fluid flow through the component. The filling circuit is first connected to the component to fill the component. Once full, flow through the filling circuit is blocked and flow to the component is provided by the leakage circuit, which includes a leakage flow rate measuring device. The filling circuit provides a flow rate that is at least twice the flow rate that is provided by the leakage circuit.

摘要翻译： 液压部件中的液压泄漏试验使用具有两个回路的速率测试装置，该两个回路包括用液压流体快速填充该部件的填充回路和一个测量流体流过该部件的泄漏速率的泄漏回路。 填充电路首先连接到组件以填充组件。 一旦充满，流经填充电路的流量被泄漏电路提供，该泄漏电路包括泄漏流量测量装置。 填充电路提供的流量至少是由泄漏电路提供的流速的两倍。

公开(公告)号：US06526807B1

公开(公告)日：2003-03-04

申请号：US09712054

申请日：2000-11-14

申请人： Joseph Doumit ,  Royden J. Lynch, Jr.

发明人： Joseph Doumit ,  Royden J. Lynch, Jr.

IPC分类号： G01M308

CPC分类号： G01M3/04 ,  G01M3/103 ,  G01M3/16

摘要： A system for early detection of water leaks at particular locations in any water-dependent appliance and apparatus used in multi-dwelling facilities. A central control apparatus electrically interconnected with a plurality of circuits that enable water leaks to be accurately detected in a diversity of devices including air conditioners, compressor coils, hot water appliances, and pipes, and for communicating the severity of the water-related problem. A plurality of water sensors are incorporated into specially designed probes of the preferred embodiment of the present invention wherein water leaks may be accurately and reliably detected in a diversity of water-dependent appliances and devices. A specially designed fiber glass cloth functions as a probe for sensing water leaks via its built-in plurality of sensors constructed from a corresponding plurality of conductive wires enables the location and extent of a water leak to be ascertained. The apparatus is designed to be easily installed and to be inherently devoid of any safety hazards. Specially color-coded wires enable particular appliances and pipes to be properly interconnected wherein water leaks may be detected early enough to prevent consequent water-damage. A detection transmitter contained with a central control housing uses information retrieved from a database to communicate the location and extent of water leaks to contact personnel disposed at a plurality of remote receivers. Transmission of voice and data alert and warning messages is effectuated via telephone lines and cellular communications.

摘要翻译： 用于在多住宅设施中使用的任何依赖于水的设备和设备的特定位置处早期发现漏水的系统。 一种与多个电路电互连的中央控制装置，其能够在包括空调，压缩机线圈，热水器具和管道的多种设备中准确地检测出漏水并且传达与水有关的问题的严重性。 多个水传感器被并入本发明优选实施例的特别设计的探针中，其中可以在各种依赖于水的设备和装置中精确可靠地检测出水泄漏。 专门设计的玻璃纤维布作为探测器，通过内置多个由相应多根导线构成的传感器来检测漏水，可以确定漏水位置和程度。 该设备被设计成易于安装，并且固有地没有任何安全隐患。 特殊颜色编码的电线使特定的电器和管道能够被正确地互连，其中可能会早期检测到水泄漏，以防止随之而来的水损坏。 包含有中央控制壳体的检测传感器使用从数据库检索的信息将漏水的位置和程度传达给设置在多个远程接收器处的人员。 通过电话线和蜂窝通信实现语音和数据警报和警告消息的传输。

公开(公告)号：US06389881B1

公开(公告)日：2002-05-21

申请号：US09320875

申请日：1999-05-27

申请人： Bao-Wen Yang ,  Marion Recane

发明人： Bao-Wen Yang ,  Marion Recane

IPC分类号： G01M308

CPC分类号： G01M3/243

摘要： A method and apparatus is provided for detecting and locating leaks in a pipeline. Pattern match filtering is used to reduce false alarm rate, increase sensitivity and improve leak location accuracy, while quickly detecting leaks by the acoustic signal generated from a leak event in pipelines containing gas or liquid under pressure. The pattern match filter technique detects a pressure wave generated by a leak, but discriminates against background noise and pressure disturbance generated by other non-leak sources that might otherwise be detected as a leak. The pattern match filter derives a sharp peaked output from the signal of the expansion wave which allows for a distinctive point of reference for a time stamp. This provides for improved accuracy in leak location calculations. The pattern match filter is incorporated into site processors located at multiple points along a pipeline, and at a central node processor which receives data from all site processors. The pattern match filter includes using previously recorded leak profiles. At site processes located at multiple points along a pipeline, a series of previously recorded signature leak profiles are continuously compared in real time against pipeline pressure signals. Data from each site processor are used collectively at a node processor and compared against multiple leak profiles to provide further false alarm rejection. The leak event data generated at each site processor is used by the node processor to declare a leak. By the application of this pattern match filter technique, the signal to noise ratio (S/N ratio) required to identify a leak event is reduced and the sensitivity of leak detection is increased.

摘要翻译： 提供了一种用于检测和定位管道中的泄漏的方法和装置。 模式匹配滤波用于降低误报率，提高灵敏度和提高泄漏定位精度，同时通过在压力下含有气体或液体的管道中的泄漏事件产生的声信号快速检测泄漏。 模式匹配滤波器技术检测由泄漏产生的压力波，但是可以区分由其他可能被检测为泄漏的其他非泄漏源产生的背景噪声和压力干扰。 模式匹配滤波器从扩展波的信号中导出尖锐的峰值输出，这允许时间戳的特征参考点。 这样可以提高泄漏位置计算的精度。 模式匹配滤波器被并入位于沿着管线的多个点处的位置处理器，以及在从所有站点处理器接收数据的中央节点处理器处。 模式匹配过滤器包括使用先前记录的泄漏配置文件。 在沿着管道的多个点处的现场处理中，一系列先前记录的签名泄漏轮廓被实时地与管道压力信号进行比较。 来自每个站点处理器的数据在节点处理器处共同使用，并与多个泄漏配置文件进行比较，以进一步提供虚警报警。 在每个站点处理器处生成的泄漏事件数据被节点处理器用来声明泄漏。 通过应用该模式匹配滤波器技术，减少了识别泄漏事件所需的信噪比（S / N比），并提高了泄漏检测的灵敏度。

公开(公告)号：US06244099B1

公开(公告)日：2001-06-12

申请号：US09400400

申请日：1999-09-21

申请人： Steven Craig Ball ,  John Morris Barnard, Sr. ,  James Alan Snipes

发明人： Steven Craig Ball ,  John Morris Barnard, Sr. ,  James Alan Snipes

IPC分类号： G01M308

CPC分类号： C03B37/0253 ,  C03B37/029 ,  C03B2205/82 ,  Y02P40/57

摘要： An apparatus and method for sealing the bottom of an optical waveguide draw furnace is disclosed. The apparatus includes an assembly constructed and arranged to mate with the bottom of the draw furnace to form a seal, and a leak detection system communicating with the assembly to signal the forming of a proper or an improper seal. The covering plate of the assembly is selectively seated on the sealing plate of the draw furnace to form the seal, and an inert gas is delivered between the covering plate and the bottom of the draw furnace. The flow of the inert gas is detected to determine if the seal has been properly formed. An assembly including a covering plate having at least two radially spaced gaskets circumferentially positioned on the top surface of the covering plate for engagement with the sealing plate at the bottom of the draw furnace, and a method for sealing the bottom of a draw furnace are also disclosed.

摘要翻译： 公开了一种用于密封光波导拉制炉底部的装置和方法。 该装置包括构造和布置成与拉制炉的底部配合以形成密封件的组件，以及与该组件通信的泄漏检测系统，以指示形成适当或不正确的密封。 组件的盖板选择性地安置在拉丝炉的密封板上以形成密封，并且在覆盖板和拉丝炉的底部之间输送惰性气体。 检测惰性气体的流量，以确定密封件是否已正确形成。 一种组件，包括具有至少两个径向隔开的垫片的覆盖板，其周向地设置在覆盖板的顶表面上，用于与拉制炉底部的密封板接合，以及用于密封拉丝炉底部的方法 披露

公开(公告)号：US06212942B1

公开(公告)日：2001-04-10

申请号：US09172891

申请日：1998-10-15

申请人： Hideaki Hara ,  Shoji Iriyama

发明人： Hideaki Hara ,  Shoji Iriyama

IPC分类号： G01M308

CPC分类号： G01M3/24

摘要： A leakage inspection method and apparatus having a pressure wave generating means, including an air supply source, a regulator, and a solenoid valve. A pressure wave of a fluid is applied to a normal flow path of an measurement object by the pressure wave generating means to detect internal leakage by measuring, by means of a microphone, a difference between the transfer time during which the pressure wave passes through the normal flow path and the transfer time during which the pressure wave passes through the leakage flow path. Accordingly, the internal leakage of the fluid, flowing in the leakage flow path bypassing the normal flow path of an equipment having a partition and the normal flow path separated by the partition, is detected, if any.

摘要翻译： 一种具有压力波产生装置的泄漏检查方法和装置，包括空气供应源，调节器和电磁阀。 通过压力波产生装置将流体的压力波施加到测量对象的正常流动路径，以通过麦克风测量压力波通过的传递时间之间的差异来检测内部泄漏 正常流路和压力波通过泄漏流路的传送时间。 因此，如果有的话，检测到流过旁路通过具有分隔件的设备的正常流路的泄漏流路内的流体的内部泄漏和由隔板分开的正常流路。

公开(公告)号：US06662633B2

公开(公告)日：2003-12-16

申请号：US10025202

申请日：2001-12-19

申请人： Stephen John Pratt

发明人： Stephen John Pratt

IPC分类号： G01M308

CPC分类号： G01M3/3227 ,  G01M3/228

摘要： A method for locating an internal transfer leak in a fuel cell stack by applying a substantially constant gas pressure difference between a first fluid stream passage and a second fluid stream passage, wherein gas pressure in the second fluid stream passage is higher than gas pressure in the first fluid stream passage. A test gas is supplied to the second fluid stream passage and a test liquid is supplied to the first fluid stream passage. A parameter indicative of flow rate of the test gas exiting the first fluid stream passage is measured as the test liquid fills the first fluid stream passage. An apparatus for locating an internal transfer leak in a fuel cell stack is also provided.

摘要翻译： 一种用于通过在第一流体流通道和第二流体流通道之间施加基本恒定的气体压力差来定位燃料电池堆中的内部转移泄漏的方法，其中第二流体流通道中的气体压力高于第二流体流通道中的气体压力 第一流体流通道。 将测试气体供应到第二流体流通道，并将测试液体供应到第一流体流通道。 当测试液体填充第一流体流通道时，测量指示离开第一流体流通道的测试气体的流量的参数。 还提供了一种用于定位燃料电池堆中的内部转移泄漏的装置。

公开(公告)号：US06568246B1

公开(公告)日：2003-05-27

申请号：US10044602

申请日：2002-01-11

申请人： Edward Ponagai ,  Gary Lee Danhoff ,  Ghassan Hussini ,  Ghassan K. Raad ,  Michael igor Kluzner ,  Raymond Henry Berger ,  Robert Joseph Jerger

发明人： Edward Ponagai ,  Gary Lee Danhoff ,  Ghassan Hussini ,  Ghassan K. Raad ,  Michael igor Kluzner ,  Raymond Henry Berger ,  Robert Joseph Jerger

IPC分类号： G01M308

CPC分类号： G01M3/025 ,  F01N13/08 ,  F01N2550/00 ,  F02B77/088 ,  F02D11/105 ,  F02D41/08 ,  F02D41/12 ,  F02D41/1454 ,  F02D41/22 ,  G01M3/222 ,  Y02T10/40

摘要： A system and method for detecting an air leak within an exhaust system is provided. The method includes measuring an exhaust gas constituent in exhaust gases from the engine when the engine is operating in an idle operating mode. The method further includes determining whether the air leak is present in the exhaust system based on a measured exhaust gas constituent, a first air-fuel correction value, and a second air-fuel correction value.

摘要翻译： 提供一种用于检测排气系统内的空气泄漏的系统和方法。 该方法包括当发动机在空转操作模式下操作时测量来自发动机的废气中的排气成分。 该方法还包括基于测量的废气成分，第一空气燃料校正值和第二空燃比校正值确定排气系统中是否存在空气泄漏。

公开(公告)号：US06507792B1

公开(公告)日：2003-01-14

申请号：US09656792

申请日：2000-09-07

申请人： Mitsuru Senoo ,  Huping Zhang ,  Naotake Oneyama

发明人： Mitsuru Senoo ,  Huping Zhang ,  Naotake Oneyama

IPC分类号： G01M308

CPC分类号： F15B19/007 ,  F17D1/04 ,  F17D1/08

摘要： A method of selecting devices for use in a fluid pipeline network, wherein items of data concerning devices are stored in a pipe database, a pipe joint database and a valve database, and calculating equations for use in computation are also stored. Devices are temporarily selected by using the stored device data, and then computation is performed by using the stored calculating equations, thereby allowing device selection to be made easily. In addition, a block diagram of the fluid pipeline network can be made easily.

摘要翻译： 选择在流体管线网络中使用的装置的方法，其中存储关于装置的数据项存储在管道数据库中，管接头数据库和阀门数据库以及用于计算的计算方程式的方法。 通过使用存储的设备数据临时选择设备，然后通过使用所存储的计算方程来执行计算，从而允许容易地进行设备选择。 此外，可以容易地制造流体管线网络的框图。

公开(公告)号：US06477889B2

公开(公告)日：2002-11-12

申请号：US09745538

申请日：2000-12-21

申请人： Masahito Yamaki

发明人： Masahito Yamaki

IPC分类号： G01M308

CPC分类号： F02M25/0809 ,  F02M25/0818

摘要： A highly accurate diagnosing apparatus for an evaporation purge system, which is not so easily affected by fluctuation in an atmospheric pressure. An evaporation system including a fuel tank is set in a pressure state different from an atmospheric pressure, and then hermetically sealed during leakage diagnosis. A reference pressure is introduced to the reference pressure introduction side of a relative pressure sensor, and a pressure in the evaporation system is introduced to the detected pressure introduction side thereof. In an atmosphere introduction passage for opening the reference pressure introduction side of the relative pressure sensor to atmosphere, a solenoid valve is provided for the relative pressure sensor. During the leakage diagnosis, a control unit sets the solenoid valve in a closed state, holds the reference pressure at a constant value, and then determines the presence of leakage in the evaporation system based on a relative pressure change detected by the relative pressure sensor.

摘要翻译： 用于蒸发吹扫系统的高精度诊断装置，其不容易受到大气压力的波动的影响。 包括燃料箱的蒸发系统设定在与大气压不同的压力状态，然后在泄漏诊断期间气密密封。 将参考压力引入相对压力传感器的参考压力引入侧，并且将蒸发系统中的压力引入其检测到的压力引入侧。 在用于将相对压力传感器的基准压力引入侧打开到大气的气氛引入通道中，为相对压力传感器设置电磁阀。 在泄漏诊断期间，控制单元将电磁阀设定在关闭状态，将基准压力保持在恒定值，然后基于由相对压力传感器检测到的相对压力变化确定蒸发系统中的泄漏的存在。

公开(公告)号：US06272903B1

公开(公告)日：2001-08-14

申请号：US09511180

申请日：2000-02-22

申请人： Jon Lawrence Shafer

发明人： Jon Lawrence Shafer

IPC分类号： G01M308

CPC分类号： G01M3/042

摘要： A leak indicating system for a pipeline valve, the valve for selectively controlling the flow of oil through the pipeline, the leak indicating system including a hollow can with a can interior and an open top end, the hollow can in fluid communication with part of the apparatus, a lid releasably closing off the open top end of the hollow can, and a spring compressed beneath the lid and held in compression by an oil-dissolvable member so that, upon dissolution of the oil dissolvable member by oil leaked from the apparatus and flowing into the hollow can and contacting the oil dissolvable member, the spring is released to launch the lid away from the hollow can. The system further includes a can top releasably secured over the open top end of the hollow can, the can top having a hole therethrough, the lid mounted above the can top, and the spring extendable through the hole in the can top. The system wherein the lid has at least one surface with visually sightable indicia thereon.

摘要翻译： 用于管道阀的泄漏指示系统，用于选择性地控制通过管道的油流的阀，所述泄漏指示系统包括具有罐内部和敞开的顶端的中空罐，所述中空罐可以与所述管道阀的一部分流体连通 装置，可释放地封闭中空罐的敞开的顶端的盖，以及压缩在盖下方并由油溶性构件压缩的弹簧，使得在油溶解构件通过从设备泄漏的油溶解时， 流入中空罐并接触油溶性部件，释放弹簧使盖远离中空罐。 该系统还包括可释放地固定在中空罐的开口顶端上的罐顶，罐顶部具有穿过其中的孔，盖安装在罐顶部上方，弹簧可通过罐头顶部的孔延伸。 其中盖子具有至少一个具有视觉上可见的标记的表面的系统。