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    Active valve and method of operation thereof
    1.
    发明专利
    Active valve and method of operation thereof 有权
    主动阀及其操作方法

    公开(公告)号：JP2013050213A

    公开(公告)日：2013-03-14

    申请号：JP2012220623

    申请日：2012-10-02

    Applicant: Waters Technologies Corp ,  ウオーターズ・テクノロジーズ・コーポレイシヨン

    Inventor： DOURDEVILLE THEODORE ,  RUBINO FRANK A ,  JOUDREY KURT D ,  LUONGO JOSEPH A ,  ANGELOSANTO JOHN

    IPC: F16K31/06

    CPC classification number: F16K15/183 ,  F04B7/0076 ,  F16K31/047 ,  F16K37/0041 ,  Y10T137/0318

    Abstract: PROBLEM TO BE SOLVED: To provide a driving method for a fluid circuit control valve used for analysis equipment, which contributes to improvement in properties of valve closing and the like.SOLUTION: An embodiment 10 of a valve includes: an inlet 14, an outlet 16 and a passageway 18 connecting the inlet 14 and the outlet 16; a flow determining component 22 for allowing communication/blocking of the passageway 18; and a voice coil-type linear positioning component 26 that is arranged to operate the flow determining component 22 to determine communication/blocking of a flow path, wherein a control signal directed to the linear positioning component 26 is computer-controlled to achieve reliable valve sealing properties, rapid responsiveness, and improved controllability in a small flow rate, and the displacement of an actuator 38 for operating the flow determining component 22 is detected to improve control accuracy.

    Abstract translation: 要解决的问题：提供用于分析设备的流体回路控制阀的驱动方法，其有助于提高阀关闭等性能。 阀的实施例10包括：入口14，出口16和连接入口14和出口16的通道18; 用于允许通道18的通信/阻塞的流动确定部件22; 以及音圈型线性定位部件26，其布置成操作流动确定部件22以确定流动路径的通信/阻塞，其中针对线性定位部件26的控制信号被计算机控制以实现可靠的阀门密封 性能，快速响应性和改进的小流量控制性，并且检测用于操作流量确定部件22的致动器38的位移，以提高控制精度。 版权所有（C）2013，JPO＆INPIT

    COOLING OF PUMP HEADS IN CARBON DIOXIDE CHROMATOGRAPHY SYSTEMS
    2.
    发明申请
    COOLING OF PUMP HEADS IN CARBON DIOXIDE CHROMATOGRAPHY SYSTEMS 审中-公开
    泵头在二氧化碳色谱系统中的冷却

    公开(公告)号：WO2016164544A8

    公开(公告)日：2016-11-17

    申请号：PCT/US2016026386

    申请日：2016-04-07

    Applicant: WATERS TECHNOLOGIES CORP

    Inventor： JACKSON MICHAEL R ,  SEITH CHRISTOPHER ,  BARRETT NATHAN ,  O'DONNELL KARA ,  ALMEIDA NEAL B ,  LU WEN ,  USOWICZ JAMES E ,  SOK MARUTH ,  JOUDREY KURT D ,  SHREVE JOSHUA A

    IPC: B01D15/08 ,  B01D15/18 ,  G01N30/30

    CPC classification number: F25B25/005 ,  B01D15/40 ,  G01N30/30

    Abstract: The present disclosure relates to methodologies, systems and apparatus for cooling pump heads and providing balanced cooling and heat transfer between multiple pump heads. Multi-pump systems that are used to pump fluids that vary greatly in density with minor changes in temperature, such as the mobile phase of a C02-based chromatography system, require highly stable temperature conditions. In order to achieve a substantially equal average heat transfer between multiple pump heads and a coolant fluid, coolant fluid may be flowed through coolant passageways within the pump heads in a recursive and/or parallel coolant flow patterns. Such recursive and/or parallel coolant fluid flow patterns provide increased stability in temperature, compressibility, and density of the fluids passing through a multi-pump system.

    Abstract translation: 本公开涉及用于冷却泵头并在多个泵头之间提供平衡的冷却和热传递的方法，系统和设备。 用于泵送密度变化很大且温度变化较小的流体的多泵系统（例如基于CO 2的色谱系统的流动相）需要高度稳定的温度条件。 为了在多个泵头与冷却剂流体之间实现基本相等的平均热传递，冷却剂流体可以以递归和/或平行冷却剂流动模式流过泵头内的冷却剂通路。 这种递归和/或平行的冷却剂流体流动模式提供了增加的温度稳定性，可压缩性和通过多泵系统的流体密度。

    Phasendetektion in Mehrphasen-Fluiden
    5.
    发明专利
    Phasendetektion in Mehrphasen-Fluiden 未知

    公开(公告)号：DE102014220565B4

    公开(公告)日：2020-09-10

    申请号：DE102014220565

    申请日：2014-10-10

    Applicant: WATERS TECHNOLOGIES CORP

    Inventor： HILL RYAN ,  SHREVE JOSHUA A ,  DUMAS ROBERT ,  CORMIER SYLVAIN ,  DENECKE EDWIN ,  PLANT KENNETH R ,  JOUDREY KURT D

    IPC: G01N21/41 ,  G01N30/00

    Abstract: Vorrichtung zum Detektieren der Phase eines Fluids in einem Mehrphasen-Fluidsystem, umfassend: einen Kanal, der einen Fluidflusspfad definiert; eine Schaltung mit einer optischen Strahlungsquelle und einem Photodetektor; ein Gehäuse, das die Position des Kanals und der Schaltung fixiert, wobei das Gehäuse eine erste Öffnung neben der optischen Strahlungsquelle und eine zweite Öffnung neben dem Photodetektor umfasst, wobei die erste Öffnung in Größe und Form dazu ausgelegt ist, die optische Strahlung von der optischen Strahlungsquelle zum Fluidflusspfad zu filtern, wobei die zweite Öffnung in Größe und Form dazu ausgelegt ist, die optische Strahlung vom Fluidflusspfad zum Photodetektor zu filtern, und wobei die Schaltung den Brechungsindex eines Fluids in dem Fluidflusspfad misst und dabei die Phase des Fluids bestimmt und ferner eine Steuereinrichtung in Kommunikation mit dem Fluidphasendetektor, wobei die Steuereinrichtung basierend auf der von dem Fluidphasendetektor detektierten Fluidphase mindestens eine Variable, die den physikalischen Zustand der Fluidströmung beeinflusst, modulieren kann, und wobei die erste und zweite Öffnung einander gegenüberliegend angeordnet sind.

    SYSTEM AND METHOD OF COOLING A PUMP HEAD USED IN CHROMATOGRAPHY
    6.
    发明申请
    SYSTEM AND METHOD OF COOLING A PUMP HEAD USED IN CHROMATOGRAPHY 审中-公开
    冷却在色谱中使用的泵头的系统和方法

    公开(公告)号：WO2012122361A3

    公开(公告)日：2014-04-17

    申请号：PCT/US2012028246

    申请日：2012-03-08

    Applicant: WATERS TECHNOLOGIES CORP ,  JOUDREY KURT D ,  LINDERSON PAUL E

    Inventor： JOUDREY KURT D ,  LINDERSON PAUL E

    IPC: F04B53/08

    CPC classification number: B01D15/40 ,  F04B53/08 ,  F04B53/16 ,  F28D1/00 ,  G01N30/32 ,  G01N2030/326 ,  G01N30/30

    Abstract: Disclosed is a system and method of cooling a pump head by transferring heat to the actuator body, which is joined to the pump head via a support plate. In some embodiments the heat transfer is accomplished by means of two conductive plates, one placed on either side of the support plate between it and the pump head and actuator body. In some embodiments the heat transfer is controlled by a thermoelectric device. Also disclosed is a second system and method of cooling fluid to move through a pump head by pre-chilling it.

    Abstract translation: 公开了一种通过将热传递到致动器主体来冷却泵头的系统和方法，致动器主体经由支撑板连接到泵头。 在一些实施例中，热传递通过两个导电板来实现，一个放置在支撑板的与泵头和致动器本体之间的任一侧上。 在一些实施例中，热传导由热电装置控制。 还公开了冷却流体以通过预冷而移动通过泵头的第二系统和方法。

    SELECT VALVE FOR LIQUID CHROMATOGRAPHY SYSTEMS
    7.
    发明公开
    SELECT VALVE FOR LIQUID CHROMATOGRAPHY SYSTEMS 审中-公开
    液相色谱系统的换档阀

    公开(公告)号：EP2788639A4

    公开(公告)日：2015-09-02

    申请号：EP12856225

    申请日：2012-12-07

    Applicant: WATERS TECHNOLOGIES CORP

    Inventor： JOUDREY KURT D ,  SOK MARUTH

    IPC: F16K11/074 ,  B01D15/40 ,  G01N30/32 ,  G01N30/34

    CPC classification number: B01D15/14 ,  B01D15/40 ,  F04B49/22 ,  F16K11/02 ,  G01N30/02 ,  G01N30/20 ,  G01N30/32 ,  G01N30/34 ,  G01N2030/027 ,  Y10T137/85986 ,  Y10T137/86517

    Abstract: A liquid chromatography system includes a pumping system with a selector valve in fluidic communication with a pump inlet. The selector valve switches between a first position, in which the selector valve fluidically couples a solvent reservoir to the pump inlet, and a second position, in which the selector valve fluidically couples a pressurized source of liquefied carbon dioxide (for example) to the pump inlet. The liquid chromatography system can perform as a HPLC system (or as an UPLC system) when the selector valve is in the first position and as a CO2-based chromatography system when the selector valve is in the second position. The selector valve can have a third position in which both the fluidic pathway between the solvent reservoir and the pump inlet and the fluidic pathway between the pressurized source and the pump inlet are blocked. This shut-off position advantageously facilitates system maintenance.

    PASSIVE COLUMN PRE-HEATER FOR USE IN CHROMATOGRAPHIC SYSTEMS
    8.
    发明公开
    PASSIVE COLUMN PRE-HEATER FOR USE IN CHROMATOGRAPHIC SYSTEMS 审中-公开

    公开(公告)号：EP3132258A4

    公开(公告)日：2017-11-29

    申请号：EP15779859

    申请日：2015-04-10

    Applicant: WATERS TECHNOLOGIES CORP

    Inventor： SHREVE JOSHUA A ,  JOUDREY KURT D

    IPC: G01N30/30

    CPC classification number: G01N30/30 ,  G01N1/44 ,  G01N2030/3007

    Abstract: A passive pre-heater assembly includes a thermally conductive heat-spreading block and a plurality of passive pre-heaters in thermally conductive communication with the heat-spreading block. The plurality of the pre-heaters exchanges heat with the thermally conductive heat-spreading block. Each pre-heater includes a thermally conductive base in thermal communication with the heat-spreading block, and a plurality of thermally conductive fins is in thermal communication with the thermally conductive base. The plurality of fins of each pre-heater exchanges heat convectively with ambient air and conductively with the thermally conductive base of that pre-heater. A given one of the passive pre-heaters further comprises a tube in thermally conductive contact with the thermally conductive base of the given passive pre-heater. The thermally conductive heat-spreading block exchanges heat with a fluid passing through the tube of the given passive pre-heater.

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