Low energy high pressure miniature screw valve
    2.
    发明授权
    Low energy high pressure miniature screw valve 有权
    低能高压微型螺杆阀

    公开(公告)号:US07147205B1

    公开(公告)日:2006-12-12

    申请号:US10870755

    申请日:2004-06-16

    IPC分类号: F16K31/02

    摘要: A low energy high pressure screw valve having a valve body having an upper portion and a lower portion, said lower portion of said valve body defining an inlet flow passage and an outlet flow passage traversing said valve body to a valve seat, said upper portion of said valve body defining a cavity at said valve seat, a diaphragm restricting flow between said upper portion of said valve body and said lower portion, said diaphragm capable of engaging said valve seat to restrict fluid communication between said inlet passage and said outlet passage, a plunger within said cavity supporting said diaphragm, said plunger being capable of engaging said diaphragm with said valve seat at said inlet and outlet fluid passages, said plunger being in point contact with a drive screw having threads engaged with opposing threads within said upper portion of said valve body such engagement allowing motion of said drive screw within said valve body.

    摘要翻译: 一种低能量高压螺杆阀,其具有具有上部和下部的阀体,所述阀体的所述下部限定入口流动通道和将所述阀体横穿阀座的出口流动通道,所述上部 所述阀体在所述阀座处限定空腔,隔膜限制所述阀体的所述上部与所述下部之间的流动,所述隔膜能够接合所述阀座以限制所述入口通道和所述出口通道之间的流体连通, 所述柱塞在所述腔体内支撑所述隔膜,所述柱塞能够在所述入口和出口流体通道处将所述隔膜与所述阀座接合,所述柱塞与驱动螺钉指向接触,所述驱动螺钉具有与所述孔的所述上部内的相对螺纹接合的螺纹 阀体这样的接合允许所述驱动螺杆在所述阀体内运动。

    Microfluidic modulating valve
    4.
    发明申请
    Microfluidic modulating valve 失效
    微流控调节阀

    公开(公告)号:US20060145110A1

    公开(公告)日:2006-07-06

    申请号:US11030508

    申请日:2005-01-06

    IPC分类号: F16K31/02

    摘要: A valve is provided that can selectively change the size of a flow channel in a valve in order to modulate the fluid flow through the valve. In one illustrative embodiment, the valve includes a housing that defines a cavity, with an inlet and an outlet extending into the cavity. A diaphragm is positioned in the cavity, where at least part of the diaphragm defines at least part of the fluid path. One or more electrodes are fixed relative to the diaphragm, and one or more electrodes are fixed relative to the housing such that the diaphragm can be electrostatically actuated to modulate the fluid flow through the valve.

    摘要翻译: 提供一种阀,其可以选择性地改变阀中的流动通道的尺寸,以便调节通过阀的流体流动。 在一个说明性实施例中,阀包括限定空腔的壳体,其中入口和出口延伸到空腔中。 隔膜位于空腔中,其中隔膜的至少一部分限定流体路径的至少一部分。 一个或多个电极相对于隔膜固定,并且一个或多个电极相对于壳体固定,使得隔膜可被静电致动以调节通过阀的流体流动。

    Single substrate electromagnetic actuator
    5.
    发明申请
    Single substrate electromagnetic actuator 有权
    单基板电磁执行器

    公开(公告)号:US20050116798A1

    公开(公告)日:2005-06-02

    申请号:US10699210

    申请日:2003-10-31

    IPC分类号: F15C5/00 F16K99/00 H01H51/22

    摘要: A microvalve which utilizes a low temperature (

    摘要翻译: 在单个基板上使用低温(<300℃)制造工艺的微型阀。 阀门使用屈曲和电磁致动器来提供相对较大的闭合力和更低的功率消耗。 膜的弯曲技术用于为膜提供两个稳定的位置,并且降低功率消耗和微型阀的总体尺寸。 永磁体的使用是屈曲膜的替代方案,或者可以与弯曲膜组合使用,或者可以使用两组微型线圈来打开和关闭阀门,从而为 阀门在常开或常闭条件下运行。 使用ANSYS 5.7的磁分析表明,线圈之间的添加Orthonol将电磁力提高1.5倍以上。 在1 mL / m的流速下,压降为<100 Pa,测试的最大压力为57 kPa,空气中打开或关闭阀门的时间在100 ms以下。 这导致0.1 mW的估计功耗。

    Valve assembly for microfluidic devices, and method for opening and closing same
    6.
    发明申请
    Valve assembly for microfluidic devices, and method for opening and closing same 有权
    用于微流体装置的阀组件,以及用于打开和关闭其的方法

    公开(公告)号:US20040195539A1

    公开(公告)日:2004-10-07

    申请号:US10625449

    申请日:2003-07-23

    IPC分类号: F16K001/00

    摘要: A normally open fluid manipulation valve assembly and system and a method for closing, re-opening and re-closing same. The normally open valve assembly can include a substrate including a first surface, with first and second recesses formed in the first surface. A recessed channel can be formed in the first surface. The recessed channel can extend from the first recess to the second recess and can be at least partially defined by a first deformable material having a first modulus of elasticity. The valve assembly can also include an elastically deformable cover. The elastically deformable cover can include a layer of an elastically deformable material having a modulus of elasticity that is greater than the modulus of elasticity of the first deformable material, and an adhesive layer that contacts the first surface of the substrate.

    摘要翻译: 常开流体操纵阀组件和系统以及关闭,重新打开和重新关闭的方法。 常开阀组件可以包括包括第一表面的基板,其中第一和第二凹槽形成在第一表面中。 可以在第一表面中形成凹槽。 凹槽可以从第一凹槽延伸到第二凹槽,并且可以由具有第一弹性模量的第一可变形材料至少部分地限定。 阀组件还可以包括可弹性变形的盖。 可弹性变形的盖可以包括具有大于第一可变形材料的弹性模量的弹性模量的可弹性变形的材料层,以及接触基板的第一表面的粘合剂层。

    Latching micro-regulator
    7.
    发明申请
    Latching micro-regulator 有权
    闭锁微调节器

    公开(公告)号:US20030172975A1

    公开(公告)日:2003-09-18

    申请号:US10179537

    申请日:2002-06-24

    申请人: Coventor, Inc.

    IPC分类号: F17D001/00

    摘要: A latching microregulator for regulating liquid flow on micro-scale levels comprises a substrate having an inlet port and an outlet port, a valve element defining a valve chamber for opening and closing the inlet port, and an actuator assembly for actuating the valve element. The valve chamber is configured to contain a volume of fluid, and the inlet port and the outlet port are in fluid communication with the valve chamber to provide a liquid flow path through the chamber. The actuator assembly comprises a cantilever beam for moving the valve element between an open position and a closed position, an actuator, such as a piezoelectric element, for moving the cantilever beam, and a latch, such as a permanent magnet, for securing the cantilever beam in the closed position. A flow regulation system comprises a plurality of fluid channels of varied flow conductance and a plurality of latching microregulators for selectively blocking or allowing flow through each of the fluid channels.

    摘要翻译: 用于调节微量级液体流动的闭锁微调节器包括具有入口端口和出口端口的基板,限定用于打开和关闭入口端口的阀室的阀元件以及用于致动阀元件的致动器组件。 阀室被构造成容纳一定体积的流体,并且入口端口和出口端口与阀室流体连通以提供通过该腔室的液体流动路径。 致动器组件包括用于在打开位置和关闭位置之间移动阀元件的悬臂梁,用于移动悬臂梁的致动器(例如压电元件)以及用于固定悬臂的闩锁(例如永磁体) 梁处于关闭位置。 流量调节系统包括多个不同流量的流体通道和多个用于选择性地阻塞或允许流过每个流体通道的闭锁微调节器。