Hybrid rotor blades for turbine engines

    公开(公告)号:US10731471B2

    公开(公告)日:2020-08-04

    申请号:US16235095

    申请日:2018-12-28

    IPC分类号: F01D5/14 F01D5/28

    摘要: A gas turbine that includes a rotor blade that includes an airfoil. The airfoil may include non-integral portions in which: a base portion is made from a first material; and a top portion is made from a second material. The airfoil may include a connector securing the base portion to the top portion of the airfoil, wherein the connector comprises a wire-lock connector that includes: a tab extending from one of the base portion and the top portion; a complimentary slot for receiving the tab formed in the other one of the base portion and the top portion; a first groove formed in a side of the tab; a second groove formed in a side of the slot; a retaining aperture formed cooperatively via an alignment of the first and second grooves upon the tab being received into the slot; and a retaining wire housed within the retaining aperture.

    Turbine component and methods of making and cooling a turbine component

    公开(公告)号:US10590776B2

    公开(公告)日:2020-03-17

    申请号:US15174332

    申请日:2016-06-06

    摘要: A turbine component includes a root and an airfoil extending from the root to a tip opposite the root. The airfoil forms a leading edge and a trailing edge portion extending to a trailing edge. A plurality of axial cooling channels in the trailing edge portion of the airfoil are arranged to permit axial flow of a cooling fluid from an interior of the turbine component at the trailing edge portion to an exterior of the turbine component at the trailing edge portion. A method of making a turbine component includes forming an airfoil having a trailing edge portion with axial cooling channels. The axial cooling channels are arranged to permit axial flow of a cooling fluid from an interior to an exterior of the turbine component at the trailing edge portion. A method of cooling a turbine component is also disclosed.

    BLADE ATTACHMENT ASSEMBLY
    37.
    发明申请
    BLADE ATTACHMENT ASSEMBLY 审中-公开
    刀片附件装配

    公开(公告)号:US20160208625A1

    公开(公告)日:2016-07-21

    申请号:US15086539

    申请日:2016-03-31

    IPC分类号: F01D5/30

    摘要: An assembly and method for affixing a turbomachine rotor blade to a rotor wheel are disclosed. In an embodiment, an adaptor member is provided disposed between the blade and the rotor wheel, the adaptor member including an adaptor attachment slot that is complementary to the blade attachment member, and an adaptor attachment member that is complementary to the rotor wheel attachment slot. A coverplate is provided, having a coverplate attachment member that is complementary to the rotor wheel attachment slot, and a hook for engaging the adaptor member. When assembled, the coverplate member matingly engages with the adaptor member, and retains the blade in the adaptor member, and the assembly in the rotor wheel.

    摘要翻译: 公开了一种用于将涡轮机转子叶片固定到转子轮的组件和方法。 在一个实施例中,设置在叶片和转子轮之间的适配器构件,适配器构件包括与叶片附接构件互补的适配器附接槽和与转子轮附接槽互补的适配器附接构件。 提供了一种盖板,其具有与转子轮附接槽互补的盖板附接构件和用于接合适配器构件的钩。 当组装时,盖板构件与适配器构件配合地接合,并将叶片保持在适配器构件中,并且组件在转子轮中。

    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

    IPC分类号: F01D5/26 F01D9/04

    摘要: 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

    IPC分类号: F01D5/16

    摘要: 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.