TURBOMACHINE GEARED ARCHITECTURE SUPPORT ASSEMBLY

    公开(公告)号:SG11201403114WA

    公开(公告)日:2014-09-26

    申请号:SG11201403114W

    申请日:2013-01-17

    Inventor: OTTO JOHN R

    Abstract: An example turbomachine geared architecture support assembly (70; 100) includes a subpart having a more compliant portion (82; 108) and a less compliant portion (78; 104). The less compliant portion (78; 104) includes a stop (88; 108) that limits axial movement of a geared architecture (48) within a turbomachine (20).

    GAS TURBINE ENGINE FAN DRIVE GEAR SYSTEM DAMPER

    公开(公告)号:SG11201404967SA

    公开(公告)日:2014-10-30

    申请号:SG11201404967S

    申请日:2013-03-25

    Abstract: A gas turbine engine (20) includes a fan section (22). A turbine section (28) is coupled to the fan section (22) via a geared architecture (48). The geared architecture (48) includes a torque frame (68) and a flex support (72) spaced apart from one another at a location. A gear train is supported by the torque frame (68). A damper (78) is provided between the torque frame (68) and the flex support (72) at the location.

    FLEXIBLE COUPLING FOR GEARED TURBINE ENGINE
    16.
    发明公开
    FLEXIBLE COUPLING FOR GEARED TURBINE ENGINE 审中-公开
    具有齿轮箱的涡轮发动机的柔性离合器

    公开(公告)号:EP2971698A4

    公开(公告)日:2016-11-09

    申请号:EP14774942

    申请日:2014-02-18

    Abstract: A gas turbine engine includes a fan shaft arranged along an engine central axis, a frame supporting the fan shaft, a gear system rotatably coupled with the fan shaft, and a flexible coupling at least partially supporting the gear system. The flexible coupling defines, with respect to the engine central axis, a torsional stiffness TS and a lateral stiffness LS such that a ratio of TS/LS is greater than or equal to about 2.0 to reduce loads on the gear system from misalignment of the gear system with respect to the engine central axis.

    TURBINE GEAR ASSEMBLY SUPPORT HAVING SYMMETRICAL REMOVAL FEATURES
    18.
    发明公开
    TURBINE GEAR ASSEMBLY SUPPORT HAVING SYMMETRICAL REMOVAL FEATURES 有权
    具有平衡集合功能涡轮机齿轮组合板

    公开(公告)号:EP2855886A4

    公开(公告)日:2016-03-16

    申请号:EP13796961

    申请日:2013-05-23

    Inventor: OTTO JOHN R

    Abstract: An exemplary gear assembly support for use in a gas turbine engine includes a support member having a portion that is configured to be coupled to a gear assembly. Another portion of the support member is configured to be coupled to a housing in a gas turbine engine. The support member includes a plurality of removal features that each have a plurality of engaging surfaces to facilitate a pulling force on the support member in a direction parallel to an axis through a center of the support member. The engaging surfaces on each of the removal features are oriented relative to each other to resist any bending moment on the support member during application of the pulling force.

    OVER SPEED MONITORING USING A FAN DRIVE GEAR SYSTEM
    20.
    发明公开
    OVER SPEED MONITORING USING A FAN DRIVE GEAR SYSTEM 审中-公开
    ÜBERDREHZAHLÜBERWACHUNGANHAND EINESLÜFTERANTRIEBSSYSTEMS

    公开(公告)号:EP3014089A4

    公开(公告)日:2016-07-13

    申请号:EP14847847

    申请日:2014-06-12

    Inventor: OTTO JOHN R

    Abstract: A control system for turbofan engine includes a first sensor measuring rotation of a first shaft at a first location and a fan shaft sensor measuring a speed of a fan shaft. A controller utilizes measurements of a first speed of the first shaft from the first sensor and a second speed of the fan shaft driven by a geared architecture and rotating at a speed different than the first shaft. The controller determines that one of the first shaft and the fan shaft are outside predetermined deformation limits responsive to a difference between an actual difference between the first and second speeds and a calculated expected difference between speeds of the first shaft and the fan shaft.

    Abstract translation: 用于涡轮风扇发动机的控制系统包括测量第一位置处的第一轴的旋转的第一传感器和测量风扇轴的速度的风扇轴传感器。 控制器利用来自第一传感器的第一轴的第一速度和由齿轮架构驱动并以不同于第一轴的速度旋转的风扇轴的第二速度的测量。 控制器根据第一和第二速度之间的实际差值与第一轴和风扇轴的速度之间的计算出的预期差异,确定第一轴和风扇轴中的一个在外部的预定变形极限之间。

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