AERODYNAMIC SEALS FOR ROTARY MACHINE
    5.
    发明申请
    AERODYNAMIC SEALS FOR ROTARY MACHINE 有权
    旋转机的气动密封

    公开(公告)号:US20140008871A1

    公开(公告)日:2014-01-09

    申请号:US13542780

    申请日:2012-07-06

    IPC分类号: F16J15/447

    摘要: An aerodynamic seal assembly for a rotary machine is provided. The assembly includes multiple sealing device segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the segments includes a shoe plate with a forward-shoe section and an aft-shoe section having multiple labyrinth teeth therebetween facing the rotor. The shoe plate is configured to allow a high pressure fluid to a front portion of the plurality of the labyrinth teeth and a low pressure fluid behind the plurality of the labyrinth teeth and further configured to generate an aerodynamic force between the shoe plate and the rotor. The sealing device segment also includes multiple bellow springs or flexures connected to the shoe plate and to a top interface element, wherein the multiple bellow springs or flexures are configured to allow the high pressure fluid to occupy a forward cavity and the low pressure fluid to occupy an aft cavity. Further, the sealing device segments include a secondary seal attached to the top interface element at one first end and positioned about the multiple bellow springs or flexures and the shoe plate at one second end.

    摘要翻译: 提供了一种用于旋转机器的气动密封组件。 该组件包括沿周向设置在固定壳体和转子上的多个密封装置段。 每个部分包括具有前靴部分的鞋板和在其间面向转子的多个迷宫齿的后靴部分。 鞋板构造成允许高压流体到多个迷宫齿的前部,以及在多个迷宫齿之后的低压流体,并进一步构造成在鞋板和转子之间产生空气动力。 密封装置段还包括连接到鞋板和顶部接口元件的多个波纹管弹簧或挠曲件,其中多个波纹管弹簧或挠曲构造成允许高压流体占据前腔,低压流体占据 后腔。 此外,密封装置段包括在一个第一端处附接到顶部界面元件并且在一个第二端处围绕多个波纹管弹簧或挠曲件和鞋板定位的次级密封件。

    Aerodynamic seals for rotary machine
    6.
    发明授权
    Aerodynamic seals for rotary machine 有权
    旋转机气动密封

    公开(公告)号:US09255642B2

    公开(公告)日:2016-02-09

    申请号:US13542780

    申请日:2012-07-06

    摘要: An aerodynamic seal assembly for a rotary machine includes multiple sealing device segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the segments includes a shoe plate with a forward-shoe section and an aft-shoe section having multiple labyrinth teeth therebetween facing the rotor. The sealing device segment also includes multiple flexures connected to the shoe plate and to a top interface element, wherein the multiple flexures are configured to allow the high pressure fluid to occupy a forward cavity and the low pressure fluid to occupy an aft cavity. Further, the sealing device segments include a secondary seal attached to the top interface element at one first end and positioned about the flexures and the shoe plate at one second end.

    摘要翻译: 用于旋转机器的空气动力学密封组件包括在固定壳体和转子周向设置的多个密封装置段。 每个部分包括具有前靴部分的鞋板和在其间面向转子的多个迷宫齿的后靴部分。 密封装置段还包括连接到鞋板和顶部接口元件的多个弯曲部,其中多个弯曲构造成允许高压流体占据前腔,低压流体占据后腔。 此外,密封装置段包括在一个第一端处附接到顶部界面元件的第二密封件,并且在一个第二端处围绕挠曲件和鞋板定位。

    Scroll element having a relieved thrust surface
    7.
    发明授权
    Scroll element having a relieved thrust surface 失效
    具有减轻推力面的滚动元件

    公开(公告)号:US5791887A

    公开(公告)日:1998-08-11

    申请号:US734415

    申请日:1996-10-17

    IPC分类号: F04C18/02 F04C18/04

    CPC分类号: F04C18/0246

    摘要: A scroll compressor (10) is disclosed which includes a fixed scroll element (12) and an orbiting scroll element (14). Each of the scroll elements has a planar surface (18, 24) extending from the wrap on the element to the peripheral edge of the element. A relief area (56) is formed in each of the scroll elements through the planar surface to move the effective pivot point of the intermediate pressure force counteracting the tangential gas force radially inwardly toward the centerline of the scroll elements. A reduction in friction forces is the result, as well as a decrease in the time necessary to work in the scroll elements.

    摘要翻译: 公开了一种涡旋压缩机(10),其包括固定涡旋件(12)和绕动涡旋件(14)。 每个涡旋元件具有从元件上的包裹物延伸到元件的周边边缘的平坦表面(18,24)。 在每个涡卷元件中通过平面形成一个释放区域(56),以将中间压力的有效枢转点移动到与涡卷元件的中心线径向向内的切向气体力。 结果是减少了摩擦力,并且减少了在涡卷件中工作所需的时间。