Hybrid labyrinth and cloth-brush seals for turbine applications
    1.
    发明授权
    Hybrid labyrinth and cloth-brush seals for turbine applications 失效
    用于涡轮机应用的混合迷宫和布刷密封

    公开(公告)号:US06173958B1

    公开(公告)日:2001-01-16

    申请号:US09081091

    申请日:1998-05-19

    IPC分类号: F16J15447

    摘要: A seal is provided between relatively moving parts and includes plural layers of woven material such as metal, polymer or ceramic materials. The layers are secured to one another and to a first part of the relatively moving first and second parts and extend freely from that first part into engagement with the second part. The woven material layers accommodate shape variations between the parts. In a further form, bristles are disposed between layers of woven material and secured at one end to one part. The free ends of the bristles and the free marginal portion of the woven material project toward the second part in sealing engagement therewith.

    摘要翻译: 在相对运动的部件之间提供密封,并且包括多层编织材料,例如金属,聚合物或陶瓷材料。 这些层彼此固定并且固定到相对移动的第一和第二部分的第一部分并且从第一部分自由地延伸成与第二部分接合。 编织材料层适应各部件之间的形状变化。 在另一种形式中,刷毛设置在编织材料层之间并且在一端固定到一个部分。 刷毛的自由端和编织材料的自由边缘部分朝着与其密封接合的第二部分突出。

    Gas-path leakage seal for a gas turbine
    2.
    发明授权
    Gas-path leakage seal for a gas turbine 失效
    燃气轮机的气路泄漏密封

    公开(公告)号:US5509669A

    公开(公告)日:1996-04-23

    申请号:US491757

    申请日:1995-06-19

    IPC分类号: F01D11/00 F02K1/80 F16J15/12

    摘要: A gas-path leakage seal for generally sealing a gas-path leakage-gap between spaced-apart first and second members of a gas turbine (such as combustor casing segments). The seal includes a generally imperforate foil-layer assemblage which is generally impervious to gas and is located in the leakage-gap. The seal also includes a cloth-layer assemblage generally enclosingly contacting the foil-layer assemblage. In one seal, the first edge of the foil-layer assemblage is left exposed, and the foil-layer assemblage resiliently contacts the first member near the first edge to reduce leakage in the "plane" of the cloth-layer assemblage under conditions which include differential thermal growth of the two members. In another seal, such leakage is reduced by having a first weld-bead which permeates the cloth-layer assemblage, is attached to the metal-foil-layer assemblage near the first edge, and unattachedly contacts the first member.

    摘要翻译: 一种用于大致密封燃气轮机间隔开的第一和第二构件之间的气体路径泄漏间隙的气体通道泄漏密封件(例如燃烧器壳体段)。 密封件包括通常无孔的箔层组合件,其通常不透气体并且位于泄漏间隙中。 密封件还包括通常围绕箔层组合接触的布层组合件。 在一个密封件中,箔层组合件的第一边缘被暴露,并且箔层组合件弹性地接触第一边缘附近的第一构件,以减少布层组件的“平面”中的泄漏,条件包括 两个成员的差热发展。 在另一个密封件中,通过具有渗透布层组合件的第一焊道,附着到第一边缘附近的金属箔层组件,并且不附着地接触第一构件,这种泄漏被减小。

    Self-accommodating brush seal for gas turbine combustor
    3.
    发明授权
    Self-accommodating brush seal for gas turbine combustor 失效
    用于燃气轮机燃烧器的自适应刷密封

    公开(公告)号:US5400586A

    公开(公告)日:1995-03-28

    申请号:US140477

    申请日:1993-10-25

    摘要: The gas turbine includes a combustor 10 having a transition piece 18 with its exit end spaced from a first-stage nozzle 22. A brush seal 26 seals about the space between the transition piece and first-stage nozzle. The brush seal includes a sealing cap 28 supported by one of the transition piece and the first-stage nozzle and having a portion 38 overlying the other of the transition piece and first-stage nozzle. A seal ring 30 is secured to the other of the transition piece and the first-stage nozzle and carries bristles 32 projecting therefrom for engagement with the overlying portion 38 of the sealing cap 28 to seal the gap between the transition piece and the first-stage nozzle. In one form, the side face portions of the bristles of the bristle pack form the seal by engaging against a planar sealing surface.

    摘要翻译: 燃气轮机包括具有过渡件18的燃烧器10,其过渡件的出口端与第一级喷嘴22间隔开。刷密封件26围绕过渡件和第一级喷嘴之间的空间密封。 刷子密封件包括由过渡件和第一级喷嘴中的一个支撑的密封帽28,并且具有覆盖过渡件和第一级喷嘴中的另一个的部分38。 密封圈30固定到过渡件和第一级喷嘴中的另一个,并且承载从其突出的刷毛32,以与密封帽28的上覆部分38接合,以密封过渡件和第一级之间的间隙 喷嘴。 在一种形式中,刷毛包的刷毛的侧面部分通过与平面密封表面接合而形成密封件。

    Gas turbine subassembly having a brush seal
    6.
    发明授权
    Gas turbine subassembly having a brush seal 失效
    具有刷密封的燃气轮机组件

    公开(公告)号:US5613829A

    公开(公告)日:1997-03-25

    申请号:US642289

    申请日:1996-05-03

    IPC分类号: F01D11/00 F02C7/28 F04D29/08

    CPC分类号: F01D11/001 F05D2240/56

    摘要: A gas turbine subassembly having a stator, a rotor, and an annular brush seal which is attached to the stator and whose free end is in line-to-line contact with a first circumferential portion of the rotor's outside surface during a first rotation/load state (such as a full-speed/full-load state of a power-plant gas-turbine rotor). A longitudinally-adjoining second circumferential portion (such as a groove) has a smaller diameter than that of the first circumferential portion. The rotor and stator together undergo a predetermined differential thermal movement when the rotor transitions to a second rotation/load state (such as a turning-gear/no-load state). During such movement, the free end of the brush seal moves radially inward and longitudinally across the second portion, preferably without any contact, to minimize or eliminate brush seal wear.

    摘要翻译: 一种具有定子,转子和环形刷子密封件的燃气轮机子组件,其在第一转动/负载期间附接到定子并且其自由端与转子的外表面的第一周向部分线性接触 状态(例如发电厂燃气轮机转子的全速/满载状态)。 纵向邻接的第二圆周部分(例如凹槽)的直径小于第一圆周部分的直径。 当转子转变到第二转/负载状态(例如转向齿轮/空载状态)时,转子和定子一起进行预定的差动热运动。 在这种移动过程中,刷子密封件的自由端径向向内和纵向移动穿过第二部分,优选地没有任何接触,以最小化或消除刷子密封件磨损。

    Gas-path leakage seal for a gas turbine made from metallic mesh
    9.
    发明授权
    Gas-path leakage seal for a gas turbine made from metallic mesh 失效
    由金属网制成的燃气轮机气路泄漏密封

    公开(公告)号:US5586773A

    公开(公告)日:1996-12-24

    申请号:US491758

    申请日:1995-06-19

    IPC分类号: F01D11/00 F16J15/12

    CPC分类号: F16J15/122 F01D11/005

    摘要: A gas-path leakage seal for generally sealing a gas-path leakage-gap between spaced-apart first and second members of a gas turbine (such as combustor casing segments). The seal includes a cloth-layer assemblage positioned in the leakage-gap. The cloth-layer assemblage includes a metallic, woven cloth layer having a first group of generally equal-diameter warp wires and a second group of generally equal-diameter weft wires. Adjacent wires of one of the first and second groups of wires are spaced apart by a center-to-center distance equal to generally between four and ten times the diameter of the wires of the other of the first and second groups of wires.

    摘要翻译: 一种用于大致密封燃气轮机间隔开的第一和第二构件之间的气体路径泄漏间隙的气体通道泄漏密封件(例如燃烧器壳体段)。 密封件包括布置在泄漏间隙中的布层组合件。 布层组合包括具有第一组大致等直径的经线的金属编织布层和第二组大致相等直径的纬线。 第一组和第二组电线之一的相邻导线间隔开等于通常为第一组和第二组导线的另一组的导线直径的四到十倍的中心到中心距离。

    Self-accommodating brush seal for gas turbine combustor
    10.
    发明授权
    Self-accommodating brush seal for gas turbine combustor 失效
    用于燃气轮机燃烧器的自适应刷密封

    公开(公告)号:US5265412A

    公开(公告)日:1993-11-30

    申请号:US920879

    申请日:1992-07-28

    摘要: The gas turbine includes a combustor 10 having a transition piece 18 with its exit end spaced from a first-stage nozzle 22. A brush seal 26 seals about the space between the transition piece and first-stage nozzle. The brush seal includes a sealing cap 28 supported by one of the transition piece and the first-stage nozzle and having a portion 38 overlying the other of the transition piece and first-stage nozzle. A seal ring 30 is secured to the other of the transition piece and the first-stage nozzle and carries bristles 32 projecting therefrom for engagement with the overlying portion 38 of the sealing cap 28 to seal the gap between the transition piece and the first-stage nozzle.

    摘要翻译: 燃气轮机包括具有过渡件18的燃烧器10,其过渡件的出口端与第一级喷嘴22间隔开。刷密封件26围绕过渡件和第一级喷嘴之间的空间密封。 刷子密封件包括由过渡件和第一级喷嘴中的一个支撑的密封帽28,并且具有覆盖过渡件和第一级喷嘴中的另一个的部分38。 密封圈30固定到过渡件和第一级喷嘴中的另一个,并且承载从其突出的刷毛32,以与密封帽28的上覆部分38接合,以密封过渡件和第一级之间的间隙 喷嘴。