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    • 5. 发明授权
    • Prime purge injection valve or multi-route selections valve
    • 主吹扫喷射阀或多路选择阀
    • US6012487A
    • 2000-01-11
    • US46932
    • 1998-03-23
    • Brian A Hauck
    • Brian A Hauck
    • F16K11/074F16K11/083F16K11/085G01N30/20
    • F16K11/0743F16K11/0833F16K11/0853G01N2030/201Y10T137/86501Y10T137/86863
    • A valve is described for loading a sample at low pressure and injecting said sample into a high pressure stream, and for priming or purging of a high pressure pump. Also described is a multi-route selection valve which allows the selection of alternate flow routes through an analyzing instrument. Both valves have a rotor (11) that can pivot about an axis (13) and at the interface (12) the rotor creates a fluid tight seal against the stator (10). The stator has a common port and n peripheral ports where n is the maximum number of peripheral ports equaling an odd integer greater than or equal to 5. The rotor has a lateral face which is comprised of a distribution channel (7) and (n+1)/2-1 switching channels (8,9). The distribution channel (7) connects the common stator port (1) independently to each of the n peripheral ports (2-6). The switching channels (8,9) each span circumferentially through an arc circle of angle 360/n degrees (17). Switching channels (8) and (9) communicate flow between a plurality of adjacent peripheral stator ports as the rotor turns.
    • 描述了一种用于在低压下加载样品并将所述样品注入高压流以及用于起动或吹扫高压泵的阀。 还描述了一种多路选择阀,其允许通过分析仪器选择交替流动路线。 两个阀都具有可围绕轴线(13)枢转的转子(11),并且在接口(12)处,转子产生抵靠定子(10)的流体密封。 定子具有公共端口和n个外围端口,其中n是等于大于或等于5的奇整数的周边端口的最大数量。转子具有由分配通道(7)和(n + 1)/ 2-1个开关通道(8,9)。 分配通道(7)将公共定子口(1)独立地连接到n个外围端口(2-6)中的每一个。 开关通道(8,9)各自跨过圆角360°/ n度的圆弧(17)。 当转子转动时,开关通道(8)和(9)在多个相邻的外围定子口之间进行通信。