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    • 2. 发明申请
    • LOW CARRYOVER HIGH PRESSURE FLUIDIC FITTING
    • 低压高压流体接头
    • WO2012177403A1
    • 2012-12-27
    • PCT/US2012/041220
    • 2012-06-07
    • WATERS TECHNOLOGIES CORPORATIONJENCKS, Robert, A.MOELLER, MarkPLANT, Kenneth, R.
    • JENCKS, Robert, A.MOELLER, MarkPLANT, Kenneth, R.
    • F16L19/06
    • F16L19/061F16L19/0206F16L19/0212F16L19/06G01N30/6026
    • Described is a fitting for coupling fluidic paths which facilitates secure and low leak rate fluid flow through a fluidic path junction such as a junction in a liquid chromatography system or other chemical analysis instrument. Fluid containing various mixtures of chemical samples can pass through the junction at high pressure with little or no trapped residue remaining in a volume at the connection. According to various embodiments, a face seal is achieved between two separate fluidic path features. In some embodiments, the sealing of the fluidic paths is aided by the use of a compliant polymer seal. The seal facilitates intimate contact between adjacent surfaces and significantly limits or prevents the entry of fluid under high pressure into an unswept volume. Thus the risk of carryover and its adverse effect on measurements is reduced or eliminated.
    • 描述了用于耦合流体路径的配件,其有助于安全和低泄漏流体流过流体路径连接,例如液相色谱系统或其它化学分析仪器中的结。 含有各种化学样品混合物的流体可以在高压下通过接头,很少或没有残留残留在连接处的体积中的残留物。 根据各种实施例,在两个独立的流体路径特征之间实现面密封。 在一些实施例中,通过使用柔性聚合物密封件有助于流体路径的密封。 密封件有助于相邻表面之间的紧密接触,并且显着地限制或防止流体在高压下进入未被吹扫的体积。 因此,减少或消除了遗留的风险及其对测量的不利影响。
    • 9. 发明申请
    • FINGER-TIGHT HIGH PRESSURE FLUIDIC COUPLING
    • 指尖式高压流体联接
    • WO2018017965A2
    • 2018-01-25
    • PCT/US2017/043306
    • 2017-07-21
    • WATERS TECHNOLOGIES CORPORATION
    • JENCKS, Robert, A.MURPHY, Charles, T.
    • F16L13/10
    • Disclosed herein are fluidic couplings for high pressure sealing without tools that can apply large amounts of torque. One embodiment of a fitting includes a compression screw, a fluid-carrying tube extending through a bore in the compression screw, a sleeve disposed around the tube, and a seal coupled to the sleeve such that the seal surrounds a distal end portion of the sleeve. This positioning of the seal can facilitate more efficient sealing using less force and creating less dead volume. Such a fitting can be combined, for example, with a driver having a recess formed therein that can surround the compression screw and transfer rotational force thereto. The driver can include outer surface features, such as knurling, that can facilitate a user directly grasping and tightening the fitting. Further, the fitting can include at least one marking used to achieve a desired seal without overtightening.
    • 这里公开了用于高压密封的流体联接器,其不需要可施加大量扭矩的工具。 配件的一个实施例包括压紧螺钉,延伸穿过压紧螺钉中的孔的流体输送管,围绕管布置的套筒以及联接到套筒的密封件,使得密封件围绕套筒的远端部分 。 密封件的这种定位可以使用较小的力和更少的死体积来促进更有效的密封。 例如,这种配件可以与具有形成在其中的凹部的驱动器组合,该驱动器能够围绕压紧螺钉并向其传递旋转力。 驾驶员可以包括外表面特征,例如滚花,其可以便于使用者直接抓紧和拧紧配件。 此外,配件可以包括至少一个标记,用于实现期望的密封而不会过度拧紧。