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    LUBRICATION SYSTEM WITH MULTIPLE LUBRICATION CIRCUITS
    31.
    发明申请
    LUBRICATION SYSTEM WITH MULTIPLE LUBRICATION CIRCUITS 审中-公开

    公开(公告)号：US20170362959A1

    公开(公告)日：2017-12-21

    申请号：US15187155

    申请日：2016-06-20

    Applicant: United Technologies Corporation

    Inventor： Gabriel L. Suciu ,  Michael E. McCune

    IPC: F01D25/20 ,  F02C7/36 ,  F01D25/16 ,  F02C7/06

    CPC classification number: F01D25/20 ,  F01D25/16 ,  F02C7/06 ,  F02C7/36 ,  F05D2220/323 ,  F05D2260/40311 ,  F05D2260/98

    Abstract: A system for a turbine engine includes a first bearing, a second bearing, a first rotating assembly, a second rotating assembly, a first lubrication circuit and a second lubrication circuit. The first rotating assembly includes a first component rotatably supported by the first bearing. The second rotating assembly includes a second component rotatably supported by the second bearing. The first lubrication circuit includes a first pump and the first bearing. The first pump is driven by the first rotating assembly and configured to pump lubricant to the first bearing. The second lubrication circuit includes a second pump and the second bearing. The second pump is configured to pump lubricant to the second bearing. The second lubrication circuit is configured discrete from the first lubrication circuit.

    TRANSFER BEARING FOR GEARED TURBOFAN
    35.
    发明申请
    TRANSFER BEARING FOR GEARED TURBOFAN 审中-公开
    用于齿轮传动的传动轴承

    公开(公告)号：US20170023123A1

    公开(公告)日：2017-01-26

    申请号：US15039896

    申请日：2014-11-18

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Michael E. McCune

    IPC: F16H57/04 ,  F01D25/18 ,  F01D25/16 ,  F02C7/36 ,  F02C7/06

    CPC classification number: F16H57/0479 ,  F01D25/16 ,  F01D25/183 ,  F01D25/186 ,  F02C7/06 ,  F02C7/36 ,  F05D2260/40311 ,  F05D2260/98 ,  F16H57/043 ,  F16H57/0486

    Abstract: A gear reduction for a gas turbine engine comprises a carrier driven to rotate gears. The gears are supported by journal bearings. The carrier extends through a transfer bearing, which provides oil to passages within the carrier to supply oil to the gears and to the journal bearings. A device limits leakage oil from the transfer bearing to axial ends of the transfer bearing to a controlled amount. A gas turbine engine is also disclosed.

    Abstract translation: 用于燃气涡轮发动机的齿轮减速器包括被驱动以旋转齿轮的载体。 齿轮由轴颈轴承支撑。 载体延伸穿过转运轴承，该转运轴承为载体内的通道提供油，以向齿轮和轴颈轴承供油。 一种装置将传输轴承的泄漏油限制到转移轴承的轴向端部到受控的量。 还公开了一种燃气涡轮发动机。

    Flexible support structure for a geared architecture gas turbine engine
    36.
    发明授权
    Flexible support structure for a geared architecture gas turbine engine 有权
    适用于齿轮架构燃气涡轮发动机的柔性支撑结构

    公开(公告)号：US09523422B2

    公开(公告)日：2016-12-20

    申请号：US13938476

    申请日：2013-07-10

    Applicant: United Technologies Corporation

    Inventor： Michael E. McCune ,  Jason Husband

    IPC: F16H57/028 ,  F02C7/36 ,  F01D25/16

    CPC classification number: F16H57/028 ,  F01D25/164 ,  F02C7/36 ,  F02K3/06 ,  F04D25/028 ,  F04D29/053 ,  F04D29/056 ,  F05D2220/323 ,  F05D2260/40311 ,  F05D2300/501 ,  F16H1/28

    Abstract: A geared architecture for a gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a fan shaft and a frame which supports the fan shaft, the frame defines a frame stiffness. A plurality of gears drives the fan shaft. A flexible support at least partially supports the plurality of gears, the flexible support defines a flexible support stiffness that is less than the frame stiffness. An input coupling to the plurality of gears, the input coupling defines an input coupling stiffness with respect to the frame stiffness.

    Abstract translation: 根据本公开的示例性方面的用于燃气涡轮发动机的齿轮架构包括风扇轴和支撑风扇轴的框架，框架限定框架刚度。 多个齿轮驱动风扇轴。 柔性支撑件至少部分地支撑多个齿轮，柔性支撑件限定小于框架刚度的柔性支撑刚度。 输入耦合到多个齿轮的输入联接器限定相对于框架刚度的输入联接刚度。

    FLEXIBLE SUPPORT STRUCTURE FOR A GEARED ARCHITECTURE GAS TURBINE ENGINE
    37.
    发明申请
    FLEXIBLE SUPPORT STRUCTURE FOR A GEARED ARCHITECTURE GAS TURBINE ENGINE 审中-公开
    用于齿轮式建筑燃气涡轮发动机的灵活支撑结构

    公开(公告)号：US20160319829A1

    公开(公告)日：2016-11-03

    申请号：US15185292

    申请日：2016-06-17

    Applicant: United Technologies Corporation

    Inventor： Michael E. McCune ,  Jason Husband

    IPC: F04D29/056 ,  F16H1/28 ,  F02K3/06 ,  F16H57/028 ,  F04D29/053 ,  F04D25/02

    CPC classification number: F16H57/028 ,  F01D25/164 ,  F02C7/36 ,  F02K3/06 ,  F04D25/028 ,  F04D29/053 ,  F04D29/056 ,  F05D2220/323 ,  F05D2260/40311 ,  F05D2300/501 ,  F16H1/28

    Abstract: A geared architecture for a gas turbine engine includes a fan shaft and a frame which supports said fan shaft. The frame defines a frame stiffness. A plurality of gears drives the fan shaft and includes a gear mesh that defines a gear mesh stiffness. A stiffness of a ring gear of the plurality of gears is less than about 20% of the gear mesh stiffness. A flexible support supports the geared architecture and defines a flexible support stiffness. An input coupling to the plurality of gears defines an input coupling stiffness. The flexible support stiffness and the input coupling stiffness are each less than about 11% of the frame stiffness.

    Abstract translation: 用于燃气涡轮发动机的齿轮架构包括风扇轴和支撑所述风扇轴的框架。 框架定义框架刚度。 多个齿轮驱动风扇轴并且包括限定齿轮啮合刚度的齿轮啮合。 多个齿轮的齿圈的刚度小于齿轮啮合刚度的约20％。 灵活的支撑支持齿轮架构，并且定义了柔性支撑刚度。 耦合到多个齿轮的输入限定输入耦合刚度。 柔性支撑刚度和输入耦合刚度均小于框架刚度的约11％。

    FAN DRIVE GEAR SYSTEM
    39.
    发明申请
    FAN DRIVE GEAR SYSTEM 审中-公开
    风扇驱动齿轮系统

    公开(公告)号：US20160084105A1

    公开(公告)日：2016-03-24

    申请号：US14950326

    申请日：2015-11-24

    Applicant: United Technologies Corporation

    Inventor： Gary D. Roberge ,  Michael E. McCune ,  William G. Sheridan

    IPC: F01D15/12

    CPC classification number: F02C7/36 ,  F01D25/16 ,  F05D2260/40311 ,  F05D2260/98

    Abstract: A gas turbine engine includes a fan section and a speed change mechanism for driving the fan section. A first fan section support bearing is mounted forward of the speed change mechanism and a second fan section bearing is mounted aft of the speed change mechanism.

    Abstract translation: 燃气涡轮发动机包括风扇部和用于驱动风扇部的变速机构。 第一风扇部支承轴承安装在变速机构的前方，第二风扇部轴承安装在变速机构的后方。

    OIL BAFFLES IN CARRIER FOR A FAN DRIVE GEAR SYSTEM
    40.
    发明申请
    OIL BAFFLES IN CARRIER FOR A FAN DRIVE GEAR SYSTEM 审中-公开
    用于风扇驱动齿轮系统的载体中的油桶

    公开(公告)号：US20160010549A1

    公开(公告)日：2016-01-14

    申请号：US14763535

    申请日：2014-01-24

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Michael E. McCune ,  Marc Muldoon

    IPC: F02C7/06 ,  F01D5/02 ,  F02C7/36 ,  F16H57/04 ,  F02C3/04

    CPC classification number: F02C7/06 ,  F01D5/02 ,  F02C3/04 ,  F02C7/36 ,  F05D2220/36 ,  F05D2240/24 ,  F05D2240/35 ,  F05D2260/40311 ,  F05D2260/98 ,  F16H57/0423 ,  F16H57/0427 ,  F16H57/0482 ,  F16H57/0486 ,  F16H57/082

    Abstract: A gearbox assembly for a gas turbofan engine includes a sun gear rotatable about an axis and a plurality of intermediate gears driven by the sun gear. A baffle disposed between at least two of the plurality of intermediate gears includes a first gap distance within a first gap portion and a second gap distance within a second gap portion. The first gap portion is disposed between the baffle and one of the intermediate gears away from the meshed interface with the sun gear and the second gap portion is disposed near the interface with the sun gear. The first gap distance within the first gap portion is different than the second gap distance within the second gap portion to define a desired lubricant flow path.

    Abstract translation: 用于气体涡轮风扇发动机的齿轮箱组件包括可围绕轴线旋转的太阳齿轮和由太阳齿轮驱动的多个中间齿轮。 布置在所述多个中间齿轮中的至少两个之间的挡板包括在第一间隙部分内的第一间隙距离和在第二间隙部分内的第二间隙距离。 第一间隙部分设置在挡板和远离与太阳齿轮的啮合界面的一个中间齿轮之间，并且第二间隙部分设置在与太阳齿轮的界面附近。 第一间隙部分内的第一间隙距离不同于第二间隙部分内的第二间隙距离，以限定所需的润滑剂流动路径。

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