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    Method and apparatus for eliminating thermal bowing using brush seals in the diaphragm packing area of steam turbines
    4.
    发明授权
    Method and apparatus for eliminating thermal bowing using brush seals in the diaphragm packing area of steam turbines 有权
    使用蒸汽轮机隔膜包装区域中的刷密封消除热弯的方法和装置

    公开(公告)号：US06589012B2

    公开(公告)日：2003-07-08

    申请号：US09960672

    申请日：2001-09-24

    申请人： Mark Edward Burnett ,  Christopher Edward Wolfe ,  Frederick George Baily ,  Norman Arnold Turnquist ,  Bruce William Brisson ,  David Alan Caruso

    发明人： Mark Edward Burnett ,  Christopher Edward Wolfe ,  Frederick George Baily ,  Norman Arnold Turnquist ,  Bruce William Brisson ,  David Alan Caruso

    IPC分类号： F01D1112

    CPC分类号： F01D11/001

    摘要： In a steam turbine, a combined brush and labyrinth seal is provided between a diaphragm web and a sealing surface on a rotatable component radially outwardly of the rotor surface. The contact between the brush seal and sealing surface lies along an axially upstream projecting flange of an annular platform such that heat generated by frictional contact between the bristles and the sealing surface has minimal effect on the rotor surface and hence rotor dynamics. A backup labyrinth seal is provided between the web and platform. Additionally, axially upstream projecting flanges are provided on the downstream buckets and which flanges are spaced radially outwardly of the rotor surface and lie in registration with the diaphragm web. Labyrinth teeth seal between the diaphragm web and the bucket flanges serving as a backup seal.

    摘要翻译： 在蒸汽涡轮机中，组合的刷子和迷宫式密封件设置在隔膜腹板和位于转子表面径向外侧的可旋转部件上的密封表面之间。 刷密封和密封表面之间的接触位于环形平台的轴向上游突出的凸缘处，使得由刷毛和密封表面之间的摩擦接触产生的热量对转子表面和因此的转子动力学具有最小的影响。 在网页和平台之间提供备用迷宫式密封。 此外，轴向上游突出凸缘设置在下游铲斗上，并且哪些凸缘在转子表面的径向外侧间隔开并与隔膜腹板对准。 隔膜腹板和作为备用密封件的铲斗法兰之间的迷宫式牙齿密封。

    Fluidic actuator for application inside turbomachinery
    5.
    发明授权
    Fluidic actuator for application inside turbomachinery 有权
    用于涡轮机械内部的流体致动器

    公开(公告)号：US08327752B2

    公开(公告)日：2012-12-11

    申请号：US11588952

    申请日：2006-10-27

    申请人： Kripa Kiran Varanasi ,  Shorya Awtar ,  Frederick George Baily ,  Mark Edward Burnett ,  Farshad Ghasripoor ,  Imdad Imam ,  Norman Arnold Turnquist

    发明人： Kripa Kiran Varanasi ,  Shorya Awtar ,  Frederick George Baily ,  Mark Edward Burnett ,  Farshad Ghasripoor ,  Imdad Imam ,  Norman Arnold Turnquist

    IPC分类号： F16J9/16

    CPC分类号： F16J15/445 ,  F15B15/1452 ,  F16J9/06 ,  F16J9/064

    摘要： Disclosed is an actuator that includes a cylinder having an input port, a piston disposed at least partially inside of the cylinder, and one or more piston rings disposed in a circumferential piston ring groove or grooves. The actuator also includes at least one spring, inserted into the circumferential piston ring groove adjacent to the one or more piston rings and a high pressure side of said piston ring. The spring preloads the one or more piston rings to seal between a low pressure face of the one or more piston rings and a low pressure face of the circumferential piston ring groove. The invention also includes a method for moving an adjustable seal in a radial direction using the piston-ring sealed actuator. The method includes moving the adjustable seal in an axial direction, breaking a primary axial contact between the adjustable seal and a primary sealing face.

    摘要翻译： 公开了一种致动器，其包括具有输入端口的气缸，至少部分地设置在气缸内部的活塞以及设置在周向活塞环槽或凹槽中的一个或多个活塞环。 致动器还包括至少一个弹簧，其插入到与一个或多个活塞环相邻的圆周活塞环槽和所述活塞环的高压侧。 弹簧预加载一个或多个活塞环以在一个或多个活塞环的低压面和周向活塞环槽的低压面之间进行密封。 本发明还包括使用活塞环密封的致动器沿径向移动可调节密封件的方法。 该方法包括沿轴向方向移动可调节密封件，从而破坏可调节密封件与主密封面之间的主轴向接触。

    Fluidic actuator for application inside turbomachinery
    6.
    发明申请
    Fluidic actuator for application inside turbomachinery 有权
    用于涡轮机械内部的流体致动器

    公开(公告)号：US20080098884A1

    公开(公告)日：2008-05-01

    申请号：US11588952

    申请日：2006-10-27

    申请人： Kripa Kiran Varanasi ,  Shorya Awtar ,  Frederick George Baily ,  Mark Edward Burnett ,  Farshad Ghasripoor ,  Imdad Imam ,  Norman Arnold Turnquist

    发明人： Kripa Kiran Varanasi ,  Shorya Awtar ,  Frederick George Baily ,  Mark Edward Burnett ,  Farshad Ghasripoor ,  Imdad Imam ,  Norman Arnold Turnquist

    IPC分类号： F16J15/18

    CPC分类号： F16J15/445 ,  F15B15/1452 ,  F16J9/06 ,  F16J9/064

    摘要： Disclosed is an actuator that includes a cylinder having an input port, a piston disposed at least partially inside of the cylinder, and one or more piston rings disposed in a circumferential piston ring groove or grooves. The actuator also includes at least one spring, inserted into the circumferential piston ring groove adjacent to the one or more piston rings and a high pressure side of said piston ring. The spring preloads the one or more piston rings to seal between a low pressure face of the one or more piston rings and a low pressure face of the circumferential piston ring groove. The invention also includes a method for moving an adjustable seal in a radial direction using the piston-ring sealed actuator. The method includes moving the adjustable seal in an axial direction, breaking a primary axial contact between the adjustable seal and a primary sealing face.

    摘要翻译： 公开了一种致动器，其包括具有输入端口的气缸，至少部分地设置在气缸内部的活塞以及设置在周向活塞环槽或凹槽中的一个或多个活塞环。 致动器还包括至少一个弹簧，其插入到与一个或多个活塞环相邻的圆周活塞环槽和所述活塞环的高压侧。 弹簧预加载一个或多个活塞环以在一个或多个活塞环的低压面和周向活塞环槽的低压面之间进行密封。 本发明还包括使用活塞环密封的致动器沿径向移动可调节密封件的方法。 该方法包括沿轴向方向移动可调节密封件，从而破坏可调节密封件与主密封面之间的主轴向接触。