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    • 6. 发明申请
    • FLUID SWITCHING VALVES
    • 流体开关阀
    • WO2012109103A3
    • 2014-04-17
    • PCT/US2012023759
    • 2012-02-03
    • WATERS TECHNOLOGIES CORPMOELLER MARK WCIOLKOSZ THEODORE D
    • MOELLER MARK WCIOLKOSZ THEODORE D
    • F16K11/074
    • G01N30/38F16K11/10G01N30/20G01N2030/201G01N2030/202G01N2030/204Y10T137/87909
    • A fluid switching valve includes a first valve element (e.g., a stator) that has a plurality of first fluid-conveying features (e.g., ports), and a second valve element (e.g., a rotor) that has one or more second fluid-conveying features (e.g., fluid conduits in the form of grooves). The second valve element is movable, relative to the first valve element, between a plurality of discrete positions such that, in each of the discrete positions, at least one of the one or more second fluid-conveying features overlaps with multiple ones of the first fluid conveying features to provide for fluid communication therebetween. At least one of the first valve element and the second valve element includes a recess. The recess serves to reduce wear between the first valve element and the second valve element. The recess is arranged such that it does not overlap with any of the first fluid-conveying features or any of the second fluid-conveying features when the rotor is in any of the discrete positions.
    • 流体切换阀包括具有多个第一流体输送特征(例如,端口)的第一阀元件(例如,定子)和具有一个或多个第二流体输送特征(例如,端口)的第二阀元件(例如,转子) 输送特征(例如,凹槽形式的流体导管)。 第二阀元件相对于第一阀元件可在多个离散位置之间移动,使得在每个离散位置中,一个或多个第二流体输送特征中的至少一个与第一流体输送特征中的多个位置重叠 流体输送特征以提供其间的流体连通。 第一阀元件和第二阀元件中的至少一个包括凹部。 凹部用于减少第一阀元件和第二阀元件之间的磨损。 凹部被布置成当转子处于任何离散位置时,其不与第一流体输送特征或任何第二流体输送特征中的任何一个重叠。