Brush seal with positive adjustable clearance control
    2.
    发明授权
    Brush seal with positive adjustable clearance control 失效
    刷子密封带正向可调节间隙控制

    公开(公告)号:US06435514B1

    公开(公告)日:2002-08-20

    申请号:US09736705

    申请日:2000-12-15

    IPC分类号: F16J1544

    CPC分类号: F16J15/3288 F16J15/445

    摘要: The positions of brush seal segments are positively adjusted relative to a housing carrying the brush seal segments and the opposing sealing component by employing members formed of thermally responsive material. The members are heated by heating elements receiving controlled power. By increasing or decreasing the power provided to the heating elements, the members are expanded or contracted to move the brush seal segments toward or away from the opposing sealing component.

    摘要翻译: 相对于通过使用由热响应材料形成的构件,承载刷密封段和相对密封构件的外壳,刷密封段的位置被积极地调整。 这些构件由受到受控制动力的加热元件加热。 通过增加或减少提供给加热元件的功率,这些构件被膨胀或收缩以将刷子密封段朝向或远离相对的密封部件移动。

    Rotary machine having a seal assembly
    3.
    发明授权
    Rotary machine having a seal assembly 有权
    具有密封组件的旋转机器

    公开(公告)号:US06340286B1

    公开(公告)日:2002-01-22

    申请号:US09472916

    申请日:1999-12-27

    IPC分类号: F01D1108

    摘要: A rotary machine includes a rotatable rotor, blades radially mounted on and spaced apart about the rotor, a stationary casing disposed about and radially outward from the rotor and blades defining an annular gap between the casing and tips of the blades, and a flexible abradable seal assembly attached on the casing and disposed within the annular gap such that during differential growth of the rotor and blades relative to the casing the seal assembly flexes and abrades in response to contact by the blade tips and thereby clearance between the casing and blade tips is controlled as to avoid contact by the moving blade tips with the casing.

    摘要翻译: 旋转机器包括可转动的转子,径向安装在转子周围和间隔开的叶片;固定壳体,其设置在转子周围并径向向外,并且在叶片的外壳和顶端之间限定环形间隙,以及柔性可磨损密封件 组件附接在壳体上并且设置在环形间隙内,使得在转子和叶片相对于壳体的差别生长期间,密封组件响应于叶片尖端的接触而弯曲和磨损,从而控制壳体和叶片尖端之间的间隙 以避免活动叶片尖端与壳体接触。

    Sealing device and method for turbomachinery
    6.
    发明授权
    Sealing device and method for turbomachinery 有权
    涡轮机械密封装置及方法

    公开(公告)号:US07435049B2

    公开(公告)日:2008-10-14

    申请号:US10813102

    申请日:2004-03-30

    IPC分类号: F01D11/06

    摘要: A compliant seal for use between rotating blades and a static shroud surrounding the rotating blades in a steam or gas turbine is disclosed. The seal includes a tip surface, substantially resistant to wear due to rubbing by the tip of the rotating blades, and an elastic biasing member, comprising a biasing element. The wear-resistant surface is thus biased against the tips of the rotating blades to seal a gas path between the rotating blades and the static shroud.

    摘要翻译: 公开了一种在旋转叶片和围绕蒸汽或燃气轮机中的旋转叶片的静态护罩之间使用的柔性密封件。 密封件包括基本上抵抗由旋转刀片的尖端摩擦而导致的磨损的尖端表面,以及包括偏置元件的弹性偏置构件。 因此耐磨表面被偏压抵靠旋转叶片的尖端以密封旋转叶片和静态护罩之间的气体路径。

    Repositionable brush seal for turbomachinery
    9.
    发明授权
    Repositionable brush seal for turbomachinery 失效
    涡轮机的可重新定位的刷密封

    公开(公告)号:US06382632B1

    公开(公告)日:2002-05-07

    申请号:US09788716

    申请日:2001-02-21

    IPC分类号: F16J15447

    CPC分类号: F16J15/3288

    摘要: A brush seal assembly is radially and axially repositionable relative to stationary and rotating components. Shim packs whose thickness can be reduced by peeling adhesively attached foil layers from the shim packs are used to provide both axial and radial repositioning. In another form, a plurality of set screws may be threaded into a mounting member for the brush seal assembly to controllably space the brush seal from the rotating component. In a further form, an eccentric cam is rotated to reposition the brush seal assembly radially inwardly or outwardly with shim packs being used to reposition the brush seal in an axial direction.

    摘要翻译: 刷密封组件相对于静止和旋转部件径向和轴向地可重新定位。 使用通过从垫片包剥离附着的箔层可以减小其厚度的垫片,以提供轴向和径向重新定位。 在另一种形式中,多个固定螺钉可以拧入用于刷密封组件的安装构件中,以可控地将刷密封件与旋转部件隔开。 在另一种形式中,偏心凸轮被旋转以使刷密封组件径向向内或向外定位,其中垫片用于沿轴向重新定位刷密封件。

    Pattern for the surface of a turbine shroud
    10.
    发明授权
    Pattern for the surface of a turbine shroud 有权
    涡轮机护罩表面的图案

    公开(公告)号:US07614847B2

    公开(公告)日:2009-11-10

    申请号:US10996878

    申请日:2004-11-24

    IPC分类号: F01D11/12

    CPC分类号: F01D11/12 F01D11/122

    摘要: A pattern for improving aerodynamic performance of a turbine includes a material disposed in a pattern at a base surface of a turbine shroud such that the material is capable of abradable contact with a tip portion of a turbine bucket. The pattern includes a first plurality of ridges disposed at the base surface such that a first portion of the first plurality of ridges corresponding to a back portion of the turbine bucket is oriented at a first angle with respect to an axis of rotation of the turbine bucket. Each ridge of the first plurality of ridges has a first sidewall and a second sidewall having a first end and a second end. The first ends of the first and second sidewalls extend from the base surface. The first and second sidewalls slope toward each other with substantially equal but opposite slopes until meeting at the second ends of respective first and second sidewalls defining a centerline and a top portion of the ridge.

    摘要翻译: 用于改善涡轮机的空气动力学性能的模式包括在涡轮机护罩的基面处以图案设置的材料,使得该材料能够与涡轮机桶的尖端部分磨损接触。 该图案包括设置在基部表面处的第一多个脊,使得对应于涡轮机桶的后部的第一多个脊的第一部分相对于涡轮叶片的旋转轴线以第一角度定向 。 第一多个脊中的每个脊具有第一侧壁和具有第一端和第二端的第二侧壁。 第一和第二侧壁的第一端从基面延伸。 第一和第二侧壁彼此相对倾斜,具有基本上相等但相反的斜面,直到在相应的第一和第二侧壁的第二端处共同限定脊的中心线和顶部。