公开(公告)号：US07967297B2

公开(公告)日：2011-06-28

申请号：US11685527

申请日：2007-03-13

申请人： Xiaoqing Zheng ,  Charles A. Trabert ,  Anthony G. O'Meara ,  Joshua J. Duquette

发明人： Xiaoqing Zheng ,  Charles A. Trabert ,  Anthony G. O'Meara ,  Joshua J. Duquette

IPC分类号： F16J15/44

CPC分类号： F16J15/3288 ,  F16J15/164 ,  Y10T29/53439

摘要： A brush seal for use with a housing and sealing a high pressure area from a low pressure area is provided. In an embodiment, the brush seal includes a retainer and a plurality of bristles. The retainer is comprised of a thermally-sensitive material having a thermal expansion rate. The bristles are connected to and extend from the retainer. In an embodiment, the retainer is not fixedly connected to the housing, and the thermal expansion rate of the retainer is greater than the thermal expansion rate of a portion of the housing adjacent the retainer. In another embodiment, a joint associated with a plurality of bristles is permitted to move into a headspace provided above the joint. A method for making a control-gap brush seal assembly for use in connection with a shaft is also disclosed.

摘要翻译： 提供了一种用于壳体并从低压区域密封高压区域的刷密封。 在一个实施例中，刷子密封件包括保持器和多个刷毛。 保持器由具有热膨胀率的热敏材料构成。 刷毛连接到保持器并从保持器延伸。 在一个实施例中，保持器不固定地连接到壳体，并且保持器的热膨胀率大于邻近保持器的壳体的一部分的热膨胀率。 在另一个实施例中，允许与多个刷毛相关联的关节移动到设置在关节上方的顶部空间中。 还公开了一种制造用于与轴结合使用的控制间隙刷密封组件的方法。

公开(公告)号：US20110135445A1

公开(公告)日：2011-06-09

申请号：US12630886

申请日：2009-12-04

申请人： Norman Arnold Turnquist ,  Keith Michael Parker ,  Xiaoqing Zheng ,  Rodrigo Rodriguez Erdmenger ,  Robbert Christiaan Pannekeet ,  Alexander Kimberley Simpson ,  Biao Fang

发明人： Norman Arnold Turnquist ,  Keith Michael Parker ,  Xiaoqing Zheng ,  Rodrigo Rodriguez Erdmenger ,  Robbert Christiaan Pannekeet ,  Alexander Kimberley Simpson ,  Biao Fang

IPC分类号： F01D11/00 ,  F16J15/16 ,  F16J9/00

CPC分类号： F16J9/20 ,  F05B2220/301 ,  F16J15/324

摘要： A pressure balance seal includes a sealing surface facing an inward radial direction, and a stator interface comprising at least one surface interfacing with a stator. The pressure balance seal further includes a friction reducing feature. The friction reducing feature includes a cavity on the sealing surface. The cavity is configured to receive a fluid such that a normal force acting on the pressure balance seal is counterbalanced by a force generated by a pressure of the fluid.

摘要翻译： 压力平衡密封件包括面向内径向的密封表面，以及包括与定子相连接的至少一个表面的定子界面。 压力平衡密封件还包括摩擦减小特征。 摩擦减小特征包括在密封表面上的空腔。 空腔构造成接收流体，使得作用在压力平衡密封件上的法向力由流体的压力产生的力抵消。

公开(公告)号：US07938403B1

公开(公告)日：2011-05-10

申请号：US12650896

申请日：2009-12-31

申请人： Vishwas K. Pandey ,  Bernard A. Couture, Jr. ,  William E. Adis ,  Michael D. Mack ,  Xiaoqing Zheng ,  Hemant V. Gedam

发明人： Vishwas K. Pandey ,  Bernard A. Couture, Jr. ,  William E. Adis ,  Michael D. Mack ,  Xiaoqing Zheng ,  Hemant V. Gedam

IPC分类号： F16J15/44

CPC分类号： F16J15/3288

摘要： A circumferentially extending brush seal positioned between static and rotary components of a machine and, during operation of the machine, the brush seal having a higher pressure region at an upstream side and a lower pressure region at a downstream side. The brush seal may include a plurality of bristles forming a bristle pack carried by the static component and cantilevered toward the rotary component such that tips of at least some of the bristles engage the rotary component. The brush seal further may include a pressure plate and a bristle pack backing plate. The bristle backing plate may include a plurality of radially extending and circumferentially spaced slots opening through opposite sides thereof. The slots may be disposed on an inner radial edge and an outer radial edge of the bristle backing plate.

摘要翻译： 位于机器的静态和旋转部件之间的周向延伸的刷子密封件，并且在机器的操作期间，刷子密封件在上游侧具有较高的压力区域，在下游侧具有较低压力区域。 刷密封可以包括多个刷毛，其形成由静态部件承载并且朝向旋转部件悬臂的刷毛包，使得至少一些刷毛的尖端接合旋转部件。 刷密封件还可以包括压板和刷毛背衬板。 刷毛背板可以包括通过其相对侧开口的多个径向延伸和周向隔开的槽。 槽可以设置在刷毛背衬板的内径向边缘和外径向边缘上。

公开(公告)号：US20100164177A1

公开(公告)日：2010-07-01

申请号：US12345881

申请日：2008-12-30

申请人： Xiaoqing Zheng ,  Joshua J. Duquette

发明人： Xiaoqing Zheng ,  Joshua J. Duquette

IPC分类号： F16J15/44

CPC分类号： F16J15/006 ,  F05B2240/40 ,  F05B2240/571 ,  F16J15/3288

摘要： A multi-stage brush seal and assembly for sealing a circumferential gap with respect to a sealed component is disclosed. The brush seal includes a first stage including a first plurality of bristles and a second stage including a second plurality of bristles. In an embodiment, the first stage is configured with an initial first-stage clearance and seals said sealed component at high pressure and low pressure conditions, and the second stage is configured to have an initial second-stage clearance greater than the initial first-stage clearance so that the second stage does not seal said sealed component at the low pressure condition but is configured to be activated by a blow-down effect to seal said sealed component at the high pressure condition. In embodiments the brush seal includes features to enhance or reduce pressure blow-down with respect to the first-stage clearance.

摘要翻译： 公开了一种用于密封相对于密封部件的周向间隙的多级刷密封和组件。 毛刷密封件包括包括第一多个刷毛的第一阶段和包括第二多个刷毛的第二阶段。 在一个实施例中，第一阶段配置有初始的第一级间隙，并在高压和低压条件下密封所述密封部件，并且第二级被配置为具有大于初始第一级的初始第二级间隙 使得第二阶段不在所述低压条件下密封所述密封部件，而是构造成通过吹扫效应来激活以在高压条件下密封所述密封部件。 在实施例中，刷子密封件包括用于增强或减小相对于第一级间隙的压力下降的特征。

公开(公告)号：US20080042364A1

公开(公告)日：2008-02-21

申请号：US11775280

申请日：2007-07-10

申请人： Xiaoqing Zheng ,  Gerard M. Berard

发明人： Xiaoqing Zheng ,  Gerard M. Berard

IPC分类号： F16J15/34

CPC分类号： F16J15/3444

摘要： A non-contacting rotary face seal assembly includes a first sealing member, including a first sealing face and a first magnetic element; and a second sealing member, including a second sealing face and a second magnetic element. The first and second magnetic elements of the first and second sealing members provide a magnetic repulsion force between the first and second magnetic elements such that the magnetic repulsion force separates the first and second sealing faces before hydrodynamic or hydrostatic forces associated with rotation of the second sealing member become sufficient to prevent the first and second sealing faces from contacting.

摘要翻译： 非接触式旋转面密封组件包括第一密封构件，包括第一密封面和第一磁性元件; 以及包括第二密封面和第二磁性元件的第二密封构件。 第一和第二密封构件的第一和第二磁性元件在第一和第二磁性元件之间提供磁性排斥力，使得磁性排斥力在与第二密封件的旋转相关联的流体动力学或静水力之前分离第一和第二密封面 构件变得足以防止第一和第二密封面接触。

公开(公告)号：US09528384B2

公开(公告)日：2016-12-27

申请号：US13169343

申请日：2011-06-27

申请人： Xiaoqing Zheng ,  Bernard Arthur Couture, Jr. ,  Michael John Bowman ,  William Edward Adis ,  Michael Dennis Mack ,  Kim James Clark

发明人： Xiaoqing Zheng ,  Bernard Arthur Couture, Jr. ,  Michael John Bowman ,  William Edward Adis ,  Michael Dennis Mack ,  Kim James Clark

IPC分类号： F01D11/02 ,  F01D11/12 ,  F01D11/00 ,  F16J15/32

CPC分类号： F01D11/127 ,  F01D11/001 ,  F05D2220/31 ,  F05D2220/32 ,  F05D2240/56 ,  F16J15/3288 ,  Y02T50/672

摘要： A brush seal is provided having a brush housing having a back plate and a front plate, a first layer of bristles disposed adjacent to the back plate, where at least one of the first layer of bristles has a first diameter. A second layer of bristles are disposed adjacent to the first layer of bristles, and at least one of the second layer of bristles has a second diameter. A third layer of bristles are disposed adjacent to the second layer of bristles, and at least one of the third layer of bristles has a third diameter. The first diameter and the third diameter are larger than the second diameter.

摘要翻译： 提供一种刷密封件，其具有具有背板和前板的刷子壳体，邻近所述背板布置的第一刷毛层，其中所述第一刷毛层中的至少一个具有第一直径。 第二层刷毛设置成与第一层刷毛相邻，并且第二层刷毛中的至少一层具有第二直径。 第三层刷毛被布置成与第二层刷毛相邻，并且第三层刷毛中的至少一层具有第三直径。 第一直径和第三直径大于第二直径。

公开(公告)号：US09121297B2

公开(公告)日：2015-09-01

申请号：US13073145

申请日：2011-03-28

申请人： Xiaoqing Zheng ,  William Edward Adis ,  Bernard Arthur Couture, Jr. ,  Michael Dennis Mack ,  Kristan Brice Sears

发明人： Xiaoqing Zheng ,  William Edward Adis ,  Bernard Arthur Couture, Jr. ,  Michael Dennis Mack ,  Kristan Brice Sears

IPC分类号： F01D11/00 ,  F04D29/08 ,  F16J15/32

CPC分类号： F01D11/001 ,  F05D2240/56 ,  F16J15/3288

摘要： A brush seal for use between a rotating component and a stationary component in a turbomachine is disclosed. The brush seal according to embodiments of this invention include a set of bristles having a fixed end and a free end, wherein the fixed end is attached to the rotating component, and wherein the set of bristles are angled axially with respect to the rotating component.

摘要翻译： 公开了一种在涡轮机中的旋转部件和固定部件之间使用的刷密封件。 根据本发明的实施例的刷子密封件包括具有固定端和自由端的一组刷毛，其中固定端附接到旋转部件，并且其中该组刷毛相对于旋转部件轴向成角度。

公开(公告)号：US08858166B2

公开(公告)日：2014-10-14

申请号：US13227218

申请日：2011-09-07

申请人： Xiaoqing Zheng ,  Bernard Arthur Couture, Jr. ,  Mehmet Demiroglu ,  Gregory Leonard Diantonio ,  Daniel Edward Jordy

发明人： Xiaoqing Zheng ,  Bernard Arthur Couture, Jr. ,  Mehmet Demiroglu ,  Gregory Leonard Diantonio ,  Daniel Edward Jordy

IPC分类号： F01D11/00 ,  F16J15/00 ,  F16J15/44 ,  F01D11/02

CPC分类号： F16J15/442 ,  F01D11/001 ,  F01D11/003 ,  F01D11/025

摘要： Systems and devices for substantially fluidly isolating portions of a rotary machine are disclosed. In one embodiment, a seal assembly for a rotary machine includes: a complementary set of seal segments configured relative one another so as to form a substantially continuous body with butt gaps between the seal segments, the segments including: a head flange; and an axial neck connected to the head flange, wherein the axial neck extends radially inboard and includes an axial slot formed substantially there through; and at least one butt gap seal element, wherein the at least one butt gap seal element includes an axial flange and a radial flange, the axial flange disposed within the axial slots of adjacent seal segments; and the radial flange extending radially inboard from the axial slots to a proximity of the rotary machine substantially forming a barrier to axial flow through the butt gap.

摘要翻译： 公开了用于基本上流体地隔离旋转机器的部分的系统和装置。 在一个实施例中，用于旋转机器的密封组件包括：彼此相对配置的互补的一组密封段，以便在密封段之间形成具有对接间隙的基本上连续的主体，所述段包括头部凸缘; 以及连接到所述头部凸缘的轴向颈部，其中所述轴向颈部径向向内延伸并且包括基本上在其上形成的轴向槽; 和至少一个对接间隙密封元件，其中所述至少一个对接间隙密封元件包括轴向凸缘和径向凸缘，所述轴向凸缘设置在相邻密封段的轴向槽内; 并且从轴向槽径向向内延伸到旋转机器附近的径向凸缘基本上形成穿过对接缝隙的轴向流动的屏障。

公开(公告)号：US08794918B2

公开(公告)日：2014-08-05

申请号：US12987052

申请日：2011-01-07

申请人： Sulficker Ali ,  Saravana Bhava Timmareddy ,  Seshu Kumar Mahankali ,  Xiaoqing Zheng

发明人： Sulficker Ali ,  Saravana Bhava Timmareddy ,  Seshu Kumar Mahankali ,  Xiaoqing Zheng

IPC分类号： F04D29/10

CPC分类号： F01D11/08 ,  F01D11/22 ,  F05D2240/56 ,  F16J15/164 ,  F16J15/3288

摘要： A system includes a brush seal segment. The brush seal segment includes a movable support including a head, an extension, and a seal surface, wherein the head is configured to mount in a chamber. The brush seal segment also includes a brush coupled to the movable support along the seal surface, wherein the seal surface consists essentially of the brush. The brush seal segment also includes a biasing element coupled to the movable support, wherein the biasing element is configured to bias the movable support from a first position to a second position to increase a brush clearance in a space between the brush and a rotor, and the movable support is configured to move from the second position to the first position to decrease the brush clearance in response to a fluid flow from the space to the chamber.

摘要翻译： 系统包括刷密封段。 刷子密封段包括可移动的支撑件，其包括头部，延伸部和密封表面，其中头部构造成安装在腔室中。 刷密封段还包括沿着密封表面联接到可移动支撑件的刷子，其中密封表面基本上由刷子组成。 刷密封段还包括联接到可移动支撑件的偏置元件，其中偏置元件构造成将可移动支撑件从第一位置偏置到第二位置，以增加刷子和转子之间的空间中的刷子间隙，以及 可移动支撑件构造成响应于从空间到腔室的流体流动而从第二位置移动到第一位置以减小刷子间隙。

公开(公告)号：US20140064909A1

公开(公告)日：2014-03-06

申请号：US13596386

申请日：2012-08-28

申请人： Deepak Trivedi ,  Norman Arnold Turnquist ,  Xiaoqing Zheng ,  Murat Inalpolat

发明人： Deepak Trivedi ,  Norman Arnold Turnquist ,  Xiaoqing Zheng ,  Murat Inalpolat

IPC分类号： F01D11/02 ,  F16J15/447

CPC分类号： F01D11/02 ,  F01D11/001

摘要： A labyrinth seal design, an actuation control clearance strategy, and a method of operating a turbomachine. The labyrinth seal design including a plurality of features configured to open and close radial clearances in response to relative axial movement between a stationary component and a rotating component. The actuation control clearance strategy and method of operating a turbomachine effective to achieve relative motion between a rotating component and a stationary component of the turbomachine using active elements. Axial displacement of the rotating component relative to the stationary component provides an adjustment in a radial clearance at one or more sealing locations between the rotating component and the stationary component to suit a given operating condition of the turbomachine.

摘要翻译： 迷宫密封设计，致动控制间隙策略和操作涡轮机的方法。 迷宫式密封设计包括多个特征，其被配置为响应于固定部件和旋转部件之间的相对轴向运动而打开和关闭径向间隙。 驱动控制间隙策略和操作涡轮机的方法有效地使用有源元件实现涡轮机的旋转部件和固定部件之间的相对运动。 旋转部件相对于固定部件的轴向位移在旋转部件和固定部件之间的一个或多个密封位置处提供径向间隙的调节，以适应涡轮机的给定操作条件。