Stator with support structure feature for tuned airfoil

    公开(公告)号:US10533581B2

    公开(公告)日:2020-01-14

    申请号:US15373774

    申请日:2016-12-09

    Abstract: A vane stage assembly includes an airfoil including a leading edge and a trailing edge. An inner shroud extends from the leading edge to the trailing edge for supporting the airfoil. The shroud includes a forward portion including an axial width and a forward thickness extending in a radial direction. A ratio of the forward radial thickness divided by the forward axial thickness is between 0.64 and 1.11 for defining a natural frequency of the airfoil. A gas turbine engine and method are also disclosed.

    STATOR WITH SUPPORT STRUCTURE FEATURE FOR TUNED AIRFOIL

    公开(公告)号:US20180163751A1

    公开(公告)日:2018-06-14

    申请号:US15373774

    申请日:2016-12-09

    Abstract: A vane stage assembly includes an airfoil including a leading edge and a trailing edge. An inner shroud extends from the leading edge to the trailing edge for supporting the airfoil. The shroud includes a forward portion including an axial width and a forward thickness extending in a radial direction. A ratio of the forward radial thickness divided by the forward axial thickness is between 0.64 and 1.11 for defining a natural frequency of the airfoil. A gas turbine engine and method are also disclosed.

    CANTILEVERED STATOR VANE AND STATOR ASSEMBLY FOR A ROTARY MACHINE
    14.
    发明申请
    CANTILEVERED STATOR VANE AND STATOR ASSEMBLY FOR A ROTARY MACHINE 有权
    用于旋转机器的恒定定子风扇和定子组件

    公开(公告)号:US20160377092A1

    公开(公告)日:2016-12-29

    申请号:US14753810

    申请日:2015-06-29

    Abstract: A stator vane assembly is provided. The stator vane assembly may comprise a stator vane, an outer shroud, and a spring. A first end of the stator vane may be fixed to an inner diameter (ID) surface of a vane platform. A slot may be disposed in a surface of the outer shroud, wherein a portion of the stator vane is configured to be located within the slot. In various embodiments, the stator vane may be configured to translate in a radial direction in response to a force between the stator vane and a rotor. In various embodiments, the spring may be configured to be coupled to an outer diameter (OD) surface of the vane platform, wherein the spring is configured to bias the ID surface of the vane platform toward the outer shroud.

    Abstract translation: 提供定子叶片组件。 定子叶片组件可以包括定子叶片,外护罩和弹簧。 定子叶片的第一端可以固定在叶片平台的内径(ID)表面上。 槽可以设置在外护罩的表面中,其中定子叶片的一部分被配置为位于槽内。 在各种实施例中,定子叶片可构造成响应于定子叶片和转子之间的力在径向方向上平移。 在各种实施例中,弹簧可被配置为联接到叶片平台的外径(OD)表面,其中弹簧构造成将叶片平台的ID表面偏向外护罩。

    Gas turbine engine airfoil frequency design

    公开(公告)号:US10815826B1

    公开(公告)日:2020-10-27

    申请号:US15868424

    申请日:2018-01-11

    Abstract: An airfoil extends in a radial direction a span in a range 3.97-4.27 inch (100.9-108.6 mm). A chord length extends in a chordwise direction from a leading edge to a trailing edge at 50% span in a range 1.28-1.58 inch (32.4-40.0 mm). The airfoil includes at least two of a first mode with a frequency of 243±10% Hz, a second mode with a frequency of 374±10% Hz, a third mode with a frequency of 741±10% Hz, a fourth mode with a frequency of 1198±10% Hz, a fifth mode with a frequency of 1663±10% Hz, a sixth mode with a frequency of 2411±10% Hz, a seventh mode with a frequency of 3734±10% Hz, an eighth mode with a frequency of 6738±10% Hz and a ninth mode with a frequency of 8977±10% Hz.

    Gas turbine engine airfoil frequency design

    公开(公告)号:US10787910B1

    公开(公告)日:2020-09-29

    申请号:US15868465

    申请日:2018-01-11

    Abstract: A turbomachine airfoil element includes an airfoil that has pressure and suction sides spaced apart from one another in a thickness direction and joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 2.59-2.89 inch (65.7-73.3 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span and is in a range of 1.35-1.65 inch (34.4-42.0 mm). The airfoil element includes at least two of a first mode with a frequency of 2241±10% Hz, a second mode with a frequency of 3598±10% Hz and a third mode with a frequency of 6212±10% Hz.

    Gas turbine engine airfoil frequency design

    公开(公告)号:US10760447B1

    公开(公告)日:2020-09-01

    申请号:US15869312

    申请日:2018-01-12

    Abstract: A turbomachine airfoil element includes an airfoil that has pressure and suction sides spaced apart from one another in a thickness direction and joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 3.84-4.14 inch (97.5-105.1 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span and is in a range of 1.16-1.46 inch (29.5-37.1 mm). The airfoil element includes at least two of a first mode with a frequency of 326±10% Hz, a second mode with a frequency of 1252±10% Hz, a third mode with a frequency of 2475±10% Hz, a fourth mode with a frequency of 2951±10% Hz, a fifth mode with a frequency of 4356±10% Hz and a sixth mode with a frequency of 6086±10% Hz.

    Gas turbine engine airfoil frequency design

    公开(公告)号:US10669856B1

    公开(公告)日:2020-06-02

    申请号:US15869445

    申请日:2018-01-12

    Abstract: A turbomachine airfoil element includes an airfoil that has pressure and suction sides spaced apart from one another in a thickness direction and joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 0.75-0.85 inch (19.1-21.6 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span and is in a range of 0.56-0.66 inch (14.2-16.8 mm). The airfoil element includes at least two of a first mode with a frequency of 2740±10% Hz, a second mode with a frequency of 5956±10% Hz, a third mode with a frequency of 6554±10% Hz and a fourth mode with a frequency of 31959±10% Hz.

    GAS TURBINE ENGINE STATOR VANE SUPPORT
    20.
    发明申请

    公开(公告)号:US20190017398A1

    公开(公告)日:2019-01-17

    申请号:US15647500

    申请日:2017-07-12

    Abstract: A stator vane assembly for a gas turbine engine includes an inner vane support defining a first aperture, an outer vane support defining a second aperture, a stator having an inner end that extends through the first aperture and an outer end that extends through the second aperture, and a first bracket. The first bracket is operatively connected to the inner vane support and extends over the first aperture. The first bracket and the inner vane support defining a first pocket.

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