SEAL ASSEMBLY FOR SUPERCRITICAL FLUID CHROMATOGRAPHY
    2.
    发明申请
    SEAL ASSEMBLY FOR SUPERCRITICAL FLUID CHROMATOGRAPHY 审中-公开
    密封组件用于超临界流体色谱

    公开(公告)号:US20170074403A1

    公开(公告)日:2017-03-16

    申请号:US15263577

    申请日:2016-09-13

    摘要: A seal assembly for pressurized fluid applications, including supercritical fluid chromatography applications, includes an annular body and a helical wound flat spring. A bore extends through the annular body. The annular body has an outer lip and an inner lip opposed to and spaced apart from each other. The inner lip, outer lip and an overhanging lip portion of the outer lip define a pocket in which the helical wound flat spring is disposed. A load line of the helical wound flat spring is directed substantially along a direction of separation between the inner and outer lips to bias apart the lips. Embodiments of the seal assembly have an improved distribution of contact pressure between the inside diameter of the seal assembly and the plunger with which the inside diameter seals, and between the outside diameter of the seal assembly and a gland surface with which the outside diameter seals.

    摘要翻译: 用于加压流体应用的密封组件,包括超临界流体色谱应用,包括环形体和螺旋缠绕平板弹簧。 孔延伸穿过环形体。 环形体具有与彼此相对并间隔开的外唇缘和内唇缘。 外唇缘的内唇缘,外唇缘和突出的唇部限定了一个口袋,螺旋缠绕的平板弹簧设置在其中。 螺旋缠绕平板弹簧的负载线基本上沿着内唇和外唇之间的分离方向被引导以偏压嘴唇。 密封组件的实施例具有改善的密封组件的内径和内径密封的柱塞之间以及密封组件的外径与外径密封的密封表面之间的接触压力分布。

    Piston and cylinder assembly
    4.
    发明授权
    Piston and cylinder assembly 有权
    活塞和气缸组件

    公开(公告)号:US08573113B2

    公开(公告)日:2013-11-05

    申请号:US12771630

    申请日:2010-04-30

    IPC分类号: F16J9/28

    摘要: A piston and cylinder assembly includes a housing defining a bore. A piston is sized to reciprocate in the bore. A first sealing member provides a sealing engagement between the piston and a wall of the bore. A first bushing, of a first material, is around a first portion of the piston toward a first end of the piston. A second bushing, of a second material, is around a second portion of the piston toward a second end of the piston. The first and second bushings guide the piston within the bore. The first material is different than the second material.

    摘要翻译: 活塞和气缸组件包括限定孔的壳体。 活塞的尺寸可以在孔中往复运动。 第一密封构件提供活塞和孔的壁之间的密封接合。 第一材料的第一衬套围绕活塞的第一部分朝向活塞的第一端。 第二材料的第二衬套围绕活塞的第二部分朝向活塞的第二端。 第一和第二衬套将活塞引导到孔内。 第一种材料与第二种材料不同。

    Vane pump consisting of a two-part stator
    5.
    发明授权
    Vane pump consisting of a two-part stator 有权
    叶片泵由两部分定子组成

    公开(公告)号:US08403656B2

    公开(公告)日:2013-03-26

    申请号:US11575531

    申请日:2005-09-16

    申请人: Ulrich Fromm

    发明人: Ulrich Fromm

    IPC分类号: F03C4/00 F04C2/00

    摘要: A rotary displacement pump includes a stator (42) fixed in a housing (20), a rotor including a shaft portion (8), a radially protruding web (12), a scraper (110) having an engagement slot (112) engaging the protruding web (12). A guide (92) retains the scraper (110) in a circumferential direction and allows the scraper (110) to move reciprocatingly in a substantially axial direction. The stator (42) includes first and second members that abut each other in abutment areas having a circular arc configuration.

    摘要翻译: 旋转排量泵包括固定在壳体(20)中的定子(42),转子包括轴部(8),径向突出的腹板(12),刮刀(110),其具有接合槽 突出的网(12)。 引导件(92)沿着​​圆周方向保持刮刀(110),并允许刮刀(110)在大致轴向方向上往复运动。 定子(42)包括在具有圆弧形状的邻接区域中彼此邻接的第一和第二构件。

    ADJUSTABLE ROTARY PUMP WITH REDUCED WEAR
    7.
    发明申请
    ADJUSTABLE ROTARY PUMP WITH REDUCED WEAR 有权
    可调式旋转泵,减少磨损

    公开(公告)号:US20120219448A1

    公开(公告)日:2012-08-30

    申请号:US13464206

    申请日:2012-05-04

    IPC分类号: F01C1/18 B23P15/00

    摘要: A rotary pump having a variable delivery volume, including: a casing; a delivery chamber formed in the casing; at least one delivery rotor which is rotatable in the delivery chamber; an actuating member which is arranged facing a front face of the delivery rotor or surrounds the delivery rotor, and is moveable in the casing for adjusting the delivery volume; the actuating member chargeable with an actuating force which is dependent on a fluid requirement; a track which is formed in the casing and guides the actuating member on an actuating member sliding surface in a sliding contact; and a sliding material which forms at least one of the track and the actuating member sliding surface.

    摘要翻译: 一种具有可变输送量的旋转泵,包括:壳体; 形成在所述壳体中的输送室; 至少一个可在输送室中转动的输送转子; 驱动构件,其布置成面向所述输送转子的前表面或围绕所述输送转子,并且可在所述壳体中移动以调节所述输送体积; 所述致动构件可由取决于流体需求的致动力加载; 轨道,其形成在所述壳体中并将所述致动构件在滑动接触件中的致动构件滑动表面上引导; 以及形成轨道和致动构件滑动表面中的至少一个的滑动材料。

    Compressor Piston
    10.
    发明申请
    Compressor Piston 审中-公开
    压缩机活塞

    公开(公告)号:US20090193966A1

    公开(公告)日:2009-08-06

    申请号:US12026599

    申请日:2008-02-06

    IPC分类号: F16J1/01

    摘要: An injection molded piston formed integrally of polymer material includes a body extending along an axis and providing a mounting surface, first and second partial cylindrical surfaces located above the mounting surface and formed with a concave recesses, a first shoe located above the mounting surface and radially outboard of the cylindrical surfaces, and a second shoe located above the mounting surface and radially outboard of the cylindrical surfaces.

    摘要翻译: 由聚合物材料整体形成的注塑活塞包括沿轴线延伸并提供安装表面的主体,位于安装表面上方并形成有凹形凹部的第一和第二部分圆柱形表面,位于安装表面上方的径向 圆柱形表面的外侧,以及位于安装表面上方和圆柱形表面的径向外侧的第二个鞋。