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    • 72. 发明授权
    • Leak detection system with controlled differential pressure
    • 具有受控压差的泄漏检测系统
    • US07707871B2
    • 2010-05-04
    • US11903762
    • 2007-09-24
    • Peter C. Lukens
    • Peter C. Lukens
    • G01M3/04
    • G01M3/229
    • A system for detecting leaks in a unit. The novel system includes a first mechanism for injecting a first gas into an interior or an exterior of the unit, a second mechanism for sampling gas from an exterior or an interior of the unit to determine if the first gas has leaked out of or into the unit, respectively, and a third mechanism for controlling a differential pressure between the interior and exterior of the unit during sampling. In an illustrative embodiment, the differential pressure is controlled by injecting a second gas into the exterior or interior of the unit to replace the sampled gas, and using pressure regulators to control the pressures of the first and second gases such that the differential pressure remains constant during sampling.
    • 用于检测单位泄漏的系统。 该新型系统包括用于将第一气体注入到该单元的内部或外部的第一机构,用于从该单元的外部或内部取样气体的第二机构,以确定该第一气体是否已经泄漏出或 单元,以及用于在采样期间控制单元的内部和外部之间的压差的第三机构。 在说明性实施例中,通过将第二气体注入单元的外部或内部来替换采样气体并使用压力调节器来控制第一和第二气体的压力使得压差保持恒定来控制差压 在采样期间。
    • 75. 发明申请
    • Leak Characterization Apparatuses and Methods for Fluid Storage Containers
    • 流体储存容器的泄漏特性设备和方法
    • US20090025456A1
    • 2009-01-29
    • US12245483
    • 2008-10-03
    • Stuart MullerRobert Torres, JR.
    • Stuart MullerRobert Torres, JR.
    • G01M3/04
    • G01M3/229
    • An apparatus for determining a leak rate of a gas from a closed valve is disclosed. The apparatus may include a vacuum pump, a pressure measuring device, a monitoring device, and a computer. The vacuum pump may be configured to couple downstream of the closed valve and decrease the pressure of the downstream side of the closed valve. The pressure measuring device may be configured to couple with the downstream side and determine the pressure. The monitoring device may be configured to couple with the downstream side and monitor a gas, where the gas may be emitted from the closed valve and be characterized by a mass. The monitoring device may further be configured to determine the mass. The computer may be configured to control the vacuum pump based on the pressure, and determine the leak rate of the gas based at least in part on the mass.
    • 公开了一种用于确定来自封闭阀的气体泄漏率的装置。 该装置可以包括真空泵,压力测量装置,监视装置和计算机。 真空泵可以被配置为联接关闭的阀的下游并减小关闭阀的下游侧的压力。 压力测量装置可以被配置成与下游侧连接并确定压力。 监测装置可以被配置为与下游侧联接并监测气体,其中气体可以从封闭的阀发射并且通过质量来表征。 监测装置还可以被配置为确定质量。 计算机可以被配置为基于压力来控制真空泵,并且至少部分地基于质量确定气体的泄漏率。
    • 76. 发明申请
    • Device for Measuring the Permeation of a Hollow Body Such as a Container
    • 用于测量容器等空心体的渗透的装置
    • US20090000355A1
    • 2009-01-01
    • US12158917
    • 2006-12-20
    • Yann Pernel
    • Yann Pernel
    • G01M3/32G01N15/08
    • G01N35/1011G01M3/229G01M3/3281G01N15/082G01N35/1097
    • Device for measuring the permeation of a hollow body provided with an opening such as a neck in particular, this device comprising a chamber in which the follow body is placed, on a support; this hollow body, when placed on its support, together with the chamber defining an internal space and an external space, the device being provided with means for providing sealing between the internal space and the external space, the sealing means comprising three seals, namely a first seal, a second seal termed the intermediate seal, and a third seal, these three seals being housed in grooves belonging to the body of the support, these seals projecting from the side edge of the support and being able and configured to bear against the internal face of the opening of the hollow body; the body of the support, the opening of the object and the seals thus define two spaces positioned between the internal space and the external space, a first space being bordered by a first seal and an intermediate seal, the second space being defined by the intermediate seal and a third seal.
    • 用于测量具有诸如颈部的开口的中空体的渗透性的装置,该装置包括其上放置有跟随体的腔室; 该中空体当与其间隔开内腔和外部空间的腔室一起放置在其支撑件上时,设有用于在内部空间与外部空间之间提供密封的装置,密封装置包括三个密封件,即密封件 第一密封件,称为中间密封件的第二密封件和第三密封件,这三个密封件容纳在属于支撑件主体的槽中,这些密封件从支撑件的侧边缘突出并且能够和构造成抵靠 中空体开口的内表面; 支撑体的主体,物体的开口和密封件因此限定位于内部空间和外部空间之间的两个空间,第一空间由第一密封件和中间密封件界定,第二空间由中间件 密封和第三印章。
    • 77. 发明授权
    • Method for operating a film leak indicator and a corresponding film leak indicator for carrying out said method
    • 用于操作薄膜泄漏指示器的方法和用于执行所述方法的相应薄膜泄漏指示器
    • US06945092B2
    • 2005-09-20
    • US10175694
    • 2002-06-20
    • Rudi Widt
    • Rudi Widt
    • G01M3/04G01M3/22
    • G01M3/229
    • The invention relates to a method for operating a film leak indicator (1) comprising two films (5, 6), which are each tensioned inside a frame (3, 4) and which delimit a testing space (80) when a test piece (79) is introduced. In addition, said film leak indicator is equipped with two vacuum pumps (13, 20). According to the invention, the testing space (80) is firstly evacuated and the film leak indicator is switched over to a leak search mode after the evacuation is completed. In order to prevent the search for leaks from being impaired by fluctuating helium concentrations in the ambient air, the invention provides that, before starting the leak search process, the helium concentration of the ambient air is measured and this measurement is taken into account during subsequent leakage measurements.
    • 本发明涉及一种用于操作膜泄漏指示器(1)的方法,该膜泄漏指示器(1)包括两个薄膜(5,6),每个膜(5,6)在框架(3,4)内张紧并且当测试件( 79)。 另外,所述膜泄漏指示器装备有两个真空泵(13,20)。 根据本发明,首先抽空试验空间(80),并在完成撤离之后将薄膜泄漏指示器切换到泄漏检测模式。 为了防止通过环境空气中的氦浓度波动来减少泄漏的搜索,本发明提供了在开始泄漏搜索过程之前,测量环境空气的氦浓度,并且在随后的测量中考虑了该测量 泄漏测量。