LAST STAGE AIRFOIL DESIGN FOR OPTIMAL DIFFUSER PERFORMANCE

    公开(公告)号:US20170130587A1

    公开(公告)日:2017-05-11

    申请号:US14936253

    申请日:2015-11-09

    Abstract: A system includes a turbine airfoil configured to be disposed in a turbine. The airfoil includes a suction side, a pressure side, and a first protrusion disposed on the suction side, a second protrusion disposed on the pressure side, or both. The suction side extends between a leading edge of the turbine airfoil and a trailing edge of the turbine airfoil in an axial direction and transverse to a longitudinal axis of the turbine airfoil, and extends a height of the turbine airfoil in a radial direction along the longitudinal axis. The pressure side is disposed opposite the suction side and extends between the leading edge of the turbine airfoil and the trailing edge of the turbine airfoil in the axial direction, and extends the height of the airfoil in the radial direction. The first protrusion is disposed on the suction side of the turbine airfoil and protrudes relative to the other portion of the suction side in a first direction transverse to both the radial and axial directions. The second protrusion is disposed on the pressure side of the turbine airfoil and protrudes relative to the other portion of the pressure side in a second direction transverse to both the radial and axial directions, and opposite the first direction.

    LOCKING SPACER ASSEMBLY
    14.
    发明申请
    LOCKING SPACER ASSEMBLY 审中-公开
    锁定间隔装置

    公开(公告)号:US20150101350A1

    公开(公告)日:2015-04-16

    申请号:US14055114

    申请日:2013-10-16

    CPC classification number: F01D5/303 F01D5/3038 F01D5/32

    Abstract: A locking spacer assembly for securing adjacent rotor blades includes a first end piece configured to fit into a space between the platforms of adjacent rotor blades. The first end piece comprises an outer surface and an inner surface. The outer surface has a profile that is adapted to project into the attachment slot. A second end piece is configured to fit into a space between the platforms. The second end piece comprises an outer surface and an inner surface. The outer surface has a profile that is adapted to project into the attachment slot. The inner surfaces of the first and second end pieces generally face each other. The first end piece and the second end piece are bonded together either directly or via a spacer block that is inserted between the inner surfaces.

    Abstract translation: 用于固定相邻转子叶片的锁定间隔件组件包括构造成装配到相邻转子叶片的平台之间的空间中的第一端件。 第一端件包括外表面和内表面。 外表面具有适于突出到附接槽中的轮廓。 第二端件构造成适合平台之间的空间。 第二端件包括外表面和内表面。 外表面具有适于突出到附接槽中的轮廓。 第一和第二端片的内表面通常面对彼此。 第一端片和第二端片直接地或通过插入在内表面之间的间隔块结合在一起。

    LOCKING SPACER ASSEMBLY
    15.
    发明申请
    LOCKING SPACER ASSEMBLY 有权
    锁定间隔装置

    公开(公告)号:US20150101348A1

    公开(公告)日:2015-04-16

    申请号:US14055095

    申请日:2013-10-16

    CPC classification number: F01D5/303 F01D5/3038 F01D5/32

    Abstract: Locking spacer assemblies, rotor assemblies and turbomachines are provided. In one embodiment, a locking spacer assembly includes a first end piece and a second end piece each configured to fit into a space between platforms of adjacent rotor blades, the first end piece and second end piece each comprising an outer surface and an inner surface, the outer surface having a profile adapted to project into an attachment slot, wherein the inner surfaces of the first and second end pieces generally face each other. The locking spacer assembly further includes an actuator movable between the inner surfaces, the actuator comprising a projection configured to engage the inner surface, the actuator further comprising a plurality of locating protrusions extending from the projection, the locating protrusions configured to fit within locating channels defined in the first end piece and the second end piece.

    Abstract translation: 提供了锁定间隔件组件,转子组件和涡轮机。 在一个实施例中,锁定间隔件组件包括第一端部件和第二端部件,每个第一端部件和第二端部件被构造成装配到相邻转子叶片的平台之间的空间中,第一端部件和第二端件每个包括外表面和内表面, 所述外表面具有适于突出到附接槽中的轮廓,其中所述第一和第二端片的内表面通常面对彼此。 所述锁定间隔件组件还包括可在所述内表面之间移动的致动器,所述致动器包括构造成接合所述内表面的突出部,所述致动器还包括从所述突起延伸的多个定位突起,所述定位突起被配置成适合定位的定位通道 在第一端件和第二端件中。

    Vibration damping system for turbine nozzle or blade using stacked plate members

    公开(公告)号:US12071862B2

    公开(公告)日:2024-08-27

    申请号:US17815376

    申请日:2022-07-27

    Abstract: A vibration damping system includes a vibration damping element for a turbine nozzle or blade. A body opening extends through the turbine nozzle or blade between the tip end and the base end thereof, e.g., through the airfoil among potentially other parts of the nozzle or blade. A vibration damping element includes a plurality of stacked plate members within the body opening. Each plate member is in surface contact with at least one adjacent plate member to cause friction that dampens vibration of the nozzle or blade. The body opening has an inner dimension, and each plate member has an outer dimension sized to frictionally engage the inner dimension of the body opening to damp vibration. Plate members may each include a central opening therein, and a fixed elongated body or cable may extend through the central openings. The damping element may alternatively include a helical metal ribbon spring.

    Nested damper pin and vibration dampening system for turbine nozzle or blade

    公开(公告)号:US11976565B2

    公开(公告)日:2024-05-07

    申请号:US17815372

    申请日:2022-07-27

    CPC classification number: F01D5/16 F05D2220/32 F05D2260/96

    Abstract: A vibration dampening system includes a vibration dampening element for a turbine nozzle or blade. A body opening extends through the turbine nozzle or blade, e.g., through the airfoil among potentially other parts of the nozzle or blade. A vibration dampening element includes a plurality of stacked damper pins within the body opening. The damper pins include an outer body having an inner opening, a first end surface and an opposing second end surface; and an inner body nested and movable within the inner opening of the outer body. The end surfaces frictionally engage to dampen vibration. The inner body has a first central opening including a first portion configured to engage an elongated body therein and an outer surface configured to frictionally engage a portion of the inner opening of the outer body to dampen vibration.

    VIBRATION DAMPING SYSTEM FOR TURBINE NOZZLE OR BLADE USING STACKED PLATE MEMBERS

    公开(公告)号:US20240035387A1

    公开(公告)日:2024-02-01

    申请号:US17815376

    申请日:2022-07-27

    Abstract: A vibration damping system includes a vibration damping element for a turbine nozzle or blade. A body opening extends through the turbine nozzle or blade between the tip end and the base end thereof, e.g., through the airfoil among potentially other parts of the nozzle or blade. A vibration damping element includes a plurality of stacked plate members within the body opening. Each plate member is in surface contact with at least one adjacent plate member to cause friction that dampens vibration of the nozzle or blade. The body opening has an inner dimension, and each plate member has an outer dimension sized to frictionally engage the inner dimension of the body opening to damp vibration. Plate members may each include a central opening therein, and a fixed elongated body or cable may extend through the central openings. The damping element may alternatively include a helical metal ribbon spring.

    DAMPER STACKS FOR TURBOMACHINE ROTOR BLADES

    公开(公告)号:US20210172325A1

    公开(公告)日:2021-06-10

    申请号:US16708999

    申请日:2019-12-10

    Abstract: Damper stacks, rotor blades, and turbomachines are provided. A rotor blade includes a main body including a shank and an airfoil extending radially outwardly from the shank. The rotor blade further includes a damping passage defined in the main body, the damping passage extending radially through the main body. The rotor blade further includes a damper stack disposed within the damping passage, the damper stack including a plurality of damper pins, each of the plurality of damper pins in contact with a neighboring damper pin.

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