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    Apparatus and methods for determining natural frequencies of brush seals
    4.
    发明授权
    Apparatus and methods for determining natural frequencies of brush seals 失效
    用于确定刷密封固有频率的装置和方法

    公开(公告)号：US06378371B1

    公开(公告)日：2002-04-30

    申请号：US09672486

    申请日：2000-09-29

    申请人： Mahmut Faruk Aksit ,  Mehmet Demiroglu ,  Hamid Reza Sarshar ,  Osman Saim Dinc

    发明人： Mahmut Faruk Aksit ,  Mehmet Demiroglu ,  Hamid Reza Sarshar ,  Osman Saim Dinc

    IPC分类号： G01H1300

    CPC分类号： G01M7/06 ,  F16J15/3288 ,  F16J15/3296 ,  G01M13/005

    摘要： A brush seal segment is mounted within a pressure vessel and against an arcuate surface of an element to provide a seal between regions on opposite sides of the seal at different pressures. By vibrating the vessel through a range of frequencies, natural frequencies of the brush seal under pressure loading can be ascertained. Additionally, by adjusting interference between the arcuate surface and the bristle tips, natural frequencies of the brush seal under various interference loadings can likewise be ascertained. The pressure vessel has mounts for attaching the vessel to a shaker table to facilitate vibrating the vessel through the range of frequencies.

    摘要翻译： 刷密封段安装在压力容器内并抵靠元件的弧形表面，以在不同压力下在密封件的相对侧上的区域之间提供密封。 通过在一定范围的频率振动容器，可以确定在加压负载下刷子密封件的固有频率。 此外，通过调整弧形表面和刷毛尖端之间的干涉，同样可以确定各种干涉负荷下的刷密封件的固有频率。 压力容器具有用于将容器附接到振动器台的安装件，以便于在该频率范围内使容器振动。

    Low leakage snout sealing system
    7.
    发明授权
    Low leakage snout sealing system 失效
    低泄漏口密封系统

    公开(公告)号：US06454270B1

    公开(公告)日：2002-09-24

    申请号：US09737088

    申请日：2000-12-14

    申请人： Wei-Ming Chi ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe ,  Mark Arne Florin ,  Mahmut Faruk Aksit

    发明人： Wei-Ming Chi ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe ,  Mark Arne Florin ,  Mahmut Faruk Aksit

    IPC分类号： F16J1508

    CPC分类号： F16J15/28

    摘要： A low leakage sealing system is provided between a steam pipe and a housing comprised of a pair of shells and a nozzle box movable relative to one another. The sealing system includes large and small diameter sealing rings engaging the pipe and shells or nozzle box and a secondary sealing element disposed between the sealing rings and one of the pipe and shells or nozzle box. The sealing elements comprise frustoconical elements having curved end surfaces forming primary seals with the sealing rings and the housing. In another form, the sealing system includes annular carrier elements having radially opening cavities for receiving sealing rings engageable with the pipe and housing, respectively. The carrier elements are axially spaced from a plurality of sealing rings to provide the low leakage sealing system.

    摘要翻译： 在蒸汽管和由一对壳体组成的壳体和可相对于彼此移动的喷嘴箱之间提供低泄漏密封系统。 密封系统包括与管和壳或喷嘴箱接合的大直径和小直径的密封环，以及设置在密封环与管和壳或喷嘴箱中的一个之间的次级密封元件。 密封元件包括具有弯曲端面的截头圆锥元件，其形成具有密封环和壳体的主密封。 在另一种形式中，密封系统包括具有径向开口腔的环形载体元件，用于接收分别与管道和壳体接合的密封环。 载体元件与多个密封环轴向间隔开以提供低泄漏密封系统。

    Flexible cloth seal assembly
    8.
    发明授权
    Flexible cloth seal assembly 失效
    柔性布密封组件

    公开(公告)号：US5915697A

    公开(公告)日：1999-06-29

    申请号：US934549

    申请日：1997-09-22

    申请人： Bharat Sampathkumar Bagepalli ,  Joseph Charles Taura ,  Mahmut Faruk Aksit ,  Mehmet Demiroglu ,  Daniel Ross Predmore

    发明人： Bharat Sampathkumar Bagepalli ,  Joseph Charles Taura ,  Mahmut Faruk Aksit ,  Mehmet Demiroglu ,  Daniel Ross Predmore

    IPC分类号： F01D11/00 ,  F01D25/00 ,  F01D25/24 ,  F02C7/28 ,  F16J15/10 ,  F16J15/32 ,  F16J15/48 ,  F16L17/06 ,  F16J15/02

    CPC分类号： F16J15/3288 ,  F01D11/005 ,  F05B2220/301 ,  F05B2220/302 ,  F05D2240/55 ,  Y02T50/672

    摘要： A seal assembly having a flexible cloth seal which includes a shim assemblage surrounded by a cloth assemblage. A first tubular end portion, such as a gas turbine combustor, includes a longitudinal axis and has smooth and spaced-apart first and second surface portions defining a notch therebetween which is wider at its top than at its bottom and which extends outward from the axis. The second surface portion is outside curved, and a first edge of the cloth seal is positioned in the bottom of the notch. A second tubular end portion, such as a first stage nozzle, is located near, spaced apart from, and coaxially aligned with, the first tubular end portion. The second tubular end portion has a smooth third surface portion which surrounds at least a portion of the first tubular end portion and which is contacted by the cloth seal.

    摘要翻译： 一种具有柔性布密封件的密封组件，其包括由布组合包围的垫片组合件。 诸如燃气涡轮机燃烧器的第一管状端部部分包括纵向轴线并且具有平滑且间隔开的第一和第二表面部分，其在其顶部限定了在其顶部比在其底部更宽的并且从轴线向外延伸的凹口 。 第二表面部分是弯曲的外部，并且布密封件的第一边缘位于凹口的底部。 诸如第一级喷嘴的第二管状端部部分位于与第一管状端部部分附近，间隔开并同轴对准的位置。 第二管状端部具有平滑的第三表面部分，其围绕第一管状端部的至少一部分并与布密封件接触。

    Supplemental seal for the chordal hinge seals in a gas turbine
    9.
    发明授权
    Supplemental seal for the chordal hinge seals in a gas turbine 失效
    燃气轮机中的弦铰链密封的补充密封

    公开(公告)号：US06752592B2

    公开(公告)日：2004-06-22

    申请号：US10029003

    申请日：2001-12-28

    申请人： Abdul-Azeez Mohammed-Fakir ,  Mahmut Faruk Aksit ,  Ahmad Safi ,  Srikanth Vedantam ,  Ning Fang

    发明人： Abdul-Azeez Mohammed-Fakir ,  Mahmut Faruk Aksit ,  Ahmad Safi ,  Srikanth Vedantam ,  Ning Fang

    IPC分类号： F01D904

    CPC分类号： F16J15/0887 ,  F01D11/005 ,  F02C7/28

    摘要： In a gas turbine having a chordal hinge seal between an inner rail of each nozzle segment and an annular axially facing sealing surface of a nozzle support ring, a supplemental seal is disposed between the support ring and inner bands of the nozzle segments on a lower pressure side of the chordal hinge seals. To minimize or prevent leakage flow across the chordal hinge seals, a generally U-shaped supplemental seal having reversely folded U-shaped marginal portions is received in a cavity formed in the axially extending sealing surface of the inner rail of the nozzle segment. At operating conditions, the marginal portions seal against the base of the cavity and the annular sealing surface of the nozzle support ring to prevent leakage flow past the chordal hinge seal from entering the hot gas path. To install the supplemental seal, the seal is first compressed and maintained in a compressed state by applying one or more wraps about the supplemental seal or an epoxy to secure the seal when compressed in the cavity. At operating temperatures, the retention means releases the seal to engage marginal portions against opposite sealing surfaces of the nozzle segment and support ring.

    摘要翻译： 在具有在每个喷嘴段的内轨道和喷嘴支撑环的环形轴向面对的密封表面之间具有弦状铰链密封件的燃气涡轮机中，在较低压力下在支撑环和喷嘴段的内带之间设置补充密封 侧面铰链密封。 为了最小化或防止跨弦铰链密封件的泄漏流动，具有反向折叠的U形边缘部分的大致U形补充密封件容纳在形成在喷嘴段的内轨道的轴向延伸的密封表面中的空腔中。 在操作条件下，边缘部分密封在空腔的底部和喷嘴支撑环的环形密封表面上，以防止通过弦状铰链密封件的泄漏流进入热气路径。 为了安装补充密封件，首先将密封件压缩并保持在压缩状态，通过在补充密封件或环氧树脂周围施加一个或多个包装件以在压缩在空腔中时固定密封件。 在操作温度下，保持装置释放密封件以将边缘部分接合在喷嘴段和支撑环的相对的密封表面上。