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    • 9. 发明申请
    • Metering assembly and method of dispensing fluid
    • 计量组装和分配流体的方法
    • US20090019928A1
    • 2009-01-22
    • US11880112
    • 2007-07-19
    • Kabir James MukaddamJennifer Ezu HuJeremy Stevenson
    • Kabir James MukaddamJennifer Ezu HuJeremy Stevenson
    • G01F7/00G01F23/00
    • G01F11/32F16K99/0001
    • A metering assembly includes a fluidic chip and metering chambers. Selectable outlet valves communicate with each metering chamber to provide a discrete dispensed volume. The valves may be commonly controlled and may be formed as multi-level valves. The valves may be grouped into common substrate valve clusters. Purge channels communicate with the metering chambers and controlled purge valves allow reverse flow wash fluid to wash the metering chamber. Pressure ports are employed to actuate the valves. A method of dispensing a fluid from the fluidic chip includes a) selectively filling (or filling) the metering chambers with a selected fluid; and b) outputting (or selectively outputting) the fluid to output locations. The total output volume of fluid dispensed from each metering chamber may be accumulated. The process may be repeated until the accumulated volume equals the desired volume and may be repeated for another fluid from a plurality of different fluids.
    • 计量组件包括流体芯片和计量室。 可选择的出口阀与每个计量室连通以提供离散的分配体积。 这些阀可以是共同控制的并且可以形成为多级阀。 这些阀可以分成普通基板阀组。 清洗通道与计量室相通,受控的清洗阀允许逆流清洗液冲洗计量室。 压力端口用于致动阀门。 从流体芯片分配流体的方法包括:a)用选定的流体选择性地填充(或填充)计量室; 以及b)将流体输出(或选择性地输出)到输出位置。 可以累积从每个计量室分配的流体的总输出量。 可以重复该过程,直到累积体积等于期望的体积,并且可以针对来自多个不同流体的另一种流体重复该过程。