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公开(公告)号：US08721267B2
公开(公告)日：2014-05-13
申请号：US13115856
申请日：2011-05-25
IPC分类号： F04D29/00
CPC分类号： F04D13/024 , F04D15/00
摘要： A pumping apparatus comprises a rotatable shaft coupled to a motor. At least one control structure is mounted on the shaft, and at least one impeller is carried by the shaft. The impeller is adapted to rotate independently of the shaft so as to pump a fluid. The apparatus also comprises a magnetic coupling between the control structure and the impeller. Further, the impeller is adapted to translate axially along the shaft in response to a change in downstream pressure to alter the strength of the magnetic coupling.
摘要翻译： 泵送装置包括联接到马达的可旋转轴。 至少一个控制结构安装在轴上，并且至少一个叶轮由轴承载。 叶轮适于独立于轴旋转以泵送流体。 该装置还包括控制结构和叶轮之间的磁耦合。 此外，叶轮适于响应于下游压力的变化而沿着轴轴向转动以改变磁耦合的强度。
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公开(公告)号：US20120051944A1
公开(公告)日：2012-03-01
申请号：US13115856
申请日：2011-05-25
CPC分类号： F04D13/024 , F04D15/00
摘要： A pumping apparatus comprises a rotatable shaft coupled to a motor. At least one control structure is mounted on the shaft, and at least one impeller is carried by the shaft. The impeller is adapted to rotate independently of the shaft so as to pump a fluid. The apparatus also comprises a magnetic coupling between the control structure and the impeller. Further, the impeller is adapted to translate axially along the shaft in response to a change in downstream pressure to alter the strength of the magnetic coupling.
摘要翻译： 泵送装置包括联接到马达的可旋转轴。 至少一个控制结构安装在轴上，并且至少一个叶轮由轴承载。 叶轮适于独立于轴旋转以泵送流体。 该装置还包括控制结构和叶轮之间的磁耦合。 此外，叶轮适于响应于下游压力的变化而沿着轴轴向转动以改变磁耦合的强度。
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3.发明授权End-of-line zone integrity detection for a piping network in a secondary containment monitoring and leak detection system 有权二次密封监测和泄漏检测系统中管道网络的终端区域完整性检测公开(公告)号：US07555935B2
公开(公告)日：2009-07-07
申请号：US11472778
申请日：2006-06-22
IPC分类号： G01M3/28
CPC分类号： F16K17/34 , B67D7/3209 , B67D7/3218 , B67D7/78 , Y10T137/1654 , Y10T137/5762 , Y10T137/7897
摘要： An end-of-zone or line sensor placed at the end of a secondarily contained fuel piping(s) or network(s). The interstitial space of the piping network is coupled to a vacuum-generating source that draws a vacuum level in the interstitial space to monitor for leaks or breaches in the piping network. The end-of-zone sensors are coupled to the interstitial space at the far end of the piping network and vacuum-generating source. The end-of-zone sensors actuate when a sufficient vacuum level is detected. A control system monitors the status of the end-of-zone switches. If the vacuum-generating source is activated to draw a vacuum level, and the end-of-zone sensors react to indicate the vacuum level has reached the sensor, the control system knows that there is no blockage over the entire span of the piping network, and thus entire piping network can be properly monitored for leaks.
摘要翻译： 放置在二次燃料管道或网络末端的区域终点或线传感器。 管道网络的间隙空间耦合到真空产生源，其在间隙空间中吸取真空水平以监测管道网络中的泄漏或泄漏。 区域末端传感器耦合到管道网络和真空产生源的远端处的间隙空间。 当检测到足够的真空度时，端区传感器启动。 控制系统监控端区交换机的状态。 如果真空发生源被激活以吸取真空度，并且端区传感器反应以指示真空度达到传感器，则控制系统知道在管道网络的整个跨度上没有堵塞 ，因此可以适当地监控整个管道网络的泄漏。
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4.发明授权Redundant vacuum source for secondary containment monitoring and leak detection system and method 有权二次密封监控和泄漏检测系统和方法的冗余真空源公开(公告)号：US07503205B2
公开(公告)日：2009-03-17
申请号：US11472922
申请日：2006-06-22
IPC分类号： G01M3/04
CPC分类号： F16K17/34 , B67D7/3209 , B67D7/3218 , B67D7/78 , Y10T137/1654 , Y10T137/5762 , Y10T137/7897
摘要： A redundant vacuum-generating source system and method for generating and/or maintaining a vacuum level in a secondarily contained fuel-handling component that is monitored for leaks. The vacuum-generating source is coupled to upstream fuel-handling components to draw a vacuum level in their interstitial spaces. Other downstream fuel-handling components are drawn under a vacuum by tapping off of the upstream fuel-handling component's interstitial spaces for convenience. A series of valves control which upstream fuel-handling component's interstitial spaces are coupled to a downstream fuel-handling component interstitial space. In the event that an upstream fuel-handling component contains a leak, a control system can control the valves to switch the vacuum generation of a downstream fuel-handling component to another upstream fuel-handling component that does not contain a leak so that a sufficient vacuum level can be generated in downstream fuel-handling component(s) to monitor it for leaks.
摘要翻译： 一种冗余的真空产生源系统和用于产生和/或维持二次容纳的燃料处理组件中的真空水平的方法，所述燃料处理组件被监测用于泄漏。 真空产生源耦合到上游燃料处理组件以在其间隙空间中抽取真空度。 为了方便起见，下游燃料处理部件通过抽出上游燃料处理部件的间隙来在真空下拉动。 一系列阀门控制哪个上游燃料处理部件的间隙空间与下游燃料处理部件间隙空间连接。 在上游燃料处理部件含有泄漏的情况下，控制系统可以控制阀将下游燃料处理部件的真空产生切换到不含泄漏的另一上游燃料处理部件，使得足够的 可以在下游燃料处理部件中产生真空度以监测其泄漏。
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5.发明授权Secondarily contained in-dispenser sump/pan system and method for capturing and monitoring leaks 有权二次包含在分配器槽/锅系统中以及用于捕获和监测泄漏的方法公开(公告)号：US07575015B2
公开(公告)日：2009-08-18
申请号：US11472769
申请日：2006-06-22
IPC分类号： E03B1/00
CPC分类号： G01M3/2892 , Y10T137/0452 , Y10T137/1654 , Y10T137/5762 , Y10T137/8342
摘要： An in-dispenser leak pan provided inside the housing of a fuel dispenser. The leak collection chamber collects any fuel that leaks from fuel-handling components located inside the fuel dispenser above the pan. The pan is secondarily contained by an outer pan or container such that an interstitial space is formed therebetween. If a breach exists in the top part of the pan, the captured leaked fuel will be contained in by the outer pan in the interstitial space. The interstitial space of the pan is drawn under a vacuum level using a vacuum-generating source to monitor for leaks. If a leak is detected, a control system may generate an alarm and/or cause the submersible turbine pump to stop supplying fuel, or cause the dispenser product line shear valves to close, thereby only stopping fuel flow to the individual fuel dispenser containing the leak.
摘要翻译： 设置在燃料分配器的壳体内部的分配器内的泄漏盘。 泄漏收集室收集从位于锅上方的燃料分配器内的燃料处理部件泄漏的任何燃料。 盘被第二容纳在外盘或容器中，使得它们之间形成间隙空间。 如果在锅的顶部存在破裂，捕获的泄漏的燃料将被间隙中的外锅包含。 锅的间隙空间在真空水平下使用真空产生源来监测泄漏。 如果检测到泄漏，则控制系统可能会产生报警和/或使潜水涡轮泵停止供应燃料，或使分配器产品线剪切阀关闭，从而仅阻止燃料流向包含泄漏物的单独燃料分配器 。
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