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    TURBOFAN ENGINE BEARING AND GEARBOX ARRANGEMENT
    1.
    发明申请
    TURBOFAN ENGINE BEARING AND GEARBOX ARRANGEMENT 审中-公开
    涡轮发动机轴承和齿轮架布置

    公开(公告)号：WO2014152101A1

    公开(公告)日：2014-09-25

    申请号：PCT/US2014/026950

    申请日：2014-03-14

    申请人： UNITED TECHNOLOGIES CORPORATION

    发明人： SCHWARZ, Frederick, M. ,  SHERIDAN, William, G.

    IPC分类号： F02K3/06 ,  F02C7/06 ,  F02C7/32 ,  F01D25/16 ,  F04D29/046 ,  F16H1/28

    CPC分类号： F02C3/107 ,  F01D25/16 ,  F02C7/06 ,  F02C7/36 ,  F02K3/06 ,  F04D25/028 ,  F04D29/059 ,  F04D29/321 ,  F05D2260/40311

    摘要： A turbofan engine (300; 600; 700) comprising a fan shaft (120) configured to rotate about an axis (500) of the engine. A fan drive gear system (60) is configured to drive the fan shaft. The fan drive gear system has a centerplane (540). A first spool comprises a high pressure turbine (326) and a high pressure compressor (324). A second spool comprises an intermediate pressure turbine (328), a lower pressure compressor, and a shaft (334) coupling the lower pressure turbine to the intermediate pressure compressor. A third spool comprises a lower pressure turbine (330) coupled to the fan drive gear system to drive the fan. The engine has a plurality of main bearings. The turbofan engine has a single stage fan. Of the main bearings, at least one is a shaft engaging bearing engaging a driving shaft (336) coupled to the fan drive gear system. A closest (340; 640) of the shaft engaging bearings engaging the driving shaft behind the fan drive gear system has a centerplane (550) and a characteristic radius (R B ). The half angle (θ) of a virtual cone (530) intersecting the core flowpath inboard boundary at the gear system centerplane (540) and said closest of the shaft engaging bearings at the characteristic radius (R B ) is greater than about 32°. A hub to tip ratio (H R :F R ) of the fan is less than about 0.38.

    摘要翻译： 涡轮风扇发动机（300; 600; 700）包括构造成围绕发动机的轴线（500）旋转的风扇轴（120）。 风扇驱动齿轮系统（60）构造成驱动风扇轴。 风扇驱动齿轮系统具有中心面（540）。 第一阀芯包括高压涡轮机（326）和高压压缩机（324）。 第二阀芯包括中压涡轮机（328），低压压缩机和将低压涡轮机联接到中压压缩机的轴（334）。 第三卷轴包括联接到风扇驱动齿轮系统以驱动风扇的低压涡轮机（330）。 发动机具有多个主轴承。 涡扇发动机具有单级风扇。 在主要轴承中，至少一个是与联接到风扇驱动齿轮系统的驱动轴（336）接合的轴接合轴承。 与风扇驱动齿轮系统后面的驱动轴接合的轴接合轴承的最接近（340; 640）具有中心面（550）和特征半径（RB）。 在齿轮系中心平面（540）与所述最靠近特定半径（RB）的轴接合轴承相交的虚拟锥体（530）的半角（＆amp;θ）大于32°。 风扇的轮毂至叶尖比（HR：FR）小于约0.38。

    GEARED TURBOFAN WITH THREE TURBINES ALL COUNTER-ROTATING
    2.
    发明申请
    GEARED TURBOFAN WITH THREE TURBINES ALL COUNTER-ROTATING 审中-公开
    带三台涡轮的齿轮式涡轮增压器，全部为反转

    公开(公告)号：WO2014018141A3

    公开(公告)日：2014-01-30

    申请号：PCT/US2013/037674

    申请日：2013-04-23

    申请人： UNITED TECHNOLOGIES CORPORATION

    发明人： SUCIU, Gabriel, L. ,  SCHWARZ, Frederick, M.

    IPC分类号： F02C3/107 ,  F02C3/067 ,  F02K3/072

    摘要： A gas turbine engine has a fan rotor, a first compressor rotor and a second compressor rotor. The second compressor rotor compresses air to a higher pressure than the first compressor rotor. A first turbine rotor drives the second compressor rotor and a second turbine rotor. The second turbine drives the compressor rotor. A fan drive turbine is positioned downstream of the second turbine rotor. The fan drive turbine drives the fan through a gear reduction. The first compressor rotor and second turbine rotor rotate as an intermediate speed spool. The second compressor rotor and first turbine rotor together as a high speed spool. The high speed spool and the fan drive turbine configured to rotate in the same first direction. The intermediate speed spool rotates in an opposed, second direction.

    摘要翻译： 燃气涡轮发动机具有风扇转子，第一压缩机转子和第二压缩机转子。 第二压缩机转子将空气压缩至比第一压缩机转子更高的压力。 第一涡轮转子驱动第二压缩机转子和第二涡轮转子。 第二个涡轮驱动压缩机转子。 风扇驱动涡轮机定位在第二涡轮机转子的下游。 风扇驱动涡轮通过齿轮减速来驱动风扇。 第一压缩机转子和第二涡轮机转子作为中速卷轴旋转。 第二压缩机转子和第一涡轮转子一起作为高速卷轴。 高速阀芯和风扇驱动涡轮被构造成以相同的第一方向旋转。 中速阀芯沿相反的第二方向旋转。

    COMPARTMENT SHIELDING
    4.
    发明申请
    COMPARTMENT SHIELDING 审中-公开
    隔音屏蔽

    公开(公告)号：WO2014149105A1

    公开(公告)日：2014-09-25

    申请号：PCT/US2013/076098

    申请日：2013-12-18

    申请人： UNITED TECHNOLOGIES CORPORATION

    发明人： SCHWARZ, Frederick, M. ,  BRILLIANT, Lisa, I.

    IPC分类号： F01D25/24 ,  F01D25/26 ,  F02C7/00

    CPC分类号： F01D25/145 ,  F01D5/02 ,  F01D5/08 ,  F01D5/12 ,  F01D9/041 ,  F01D25/24 ,  F01D25/26 ,  F02C3/04 ,  F02C7/14 ,  F02C7/24 ,  F02C7/36 ,  F05D2220/32 ,  F05D2260/231 ,  F05D2260/40311 ,  Y02T50/676

    摘要： A gas turbine engine having an engine axis and method of manufacturing the same is disclosed. The gas turbine engine may comprise a fan configured to drive air, a low pressure compressor section having a core flow path and configured to draw in and compress air flowing along the core flow path, a spool configured to drive the fan, and geared architecture configured to adjust the fan speed. The gas turbine engine may also include a housing defining a compartment that encloses the geared architecture. The housing is disposed between the core flow path and the axis, and includes a shielded mid-section that is in thermal communication with the core flow path of the low pressure compressor section. The shielded mid-section includes an outer layer and an insulator adjacent to the outer layer.

    摘要翻译： 公开了一种具有发动机轴的燃气涡轮发动机及其制造方法。 燃气涡轮发动机可以包括构造成驱动空气的风扇，具有芯流动路径并被配置成吸入和压缩沿着核心流动路径流动的空气的低压压缩机部分，构造成驱动风扇的线轴和配置的齿轮架构 调整风扇转速。 燃气涡轮发动机还可以包括限定包围齿轮架构的隔室的壳体。 壳体设置在芯流路和轴之间，并且包括与低压压缩机部分的芯流动路径热连通的屏蔽中间部分。 屏蔽的中间部分包括外层和邻近外层的绝缘体。

    GEARED TURBOFAN ENGINE WITH POWER DENSITY RANGE
    10.
    发明申请
    GEARED TURBOFAN ENGINE WITH POWER DENSITY RANGE 审中-公开
    具有功率密度范围的齿轮涡轮发动机

    公开(公告)号：WO2014042698A1

    公开(公告)日：2014-03-20

    申请号：PCT/US2013/034518

    申请日：2013-03-29

    申请人： UNITED TECHNOLOGIES CORPORATION

    发明人： SCHWARZ, Frederick, M. ,  KUPRATIS, Daniel, Bernard

    IPC分类号： F01D15/12 ,  F01D1/04

    CPC分类号： F02K3/06 ,  F01D1/26 ,  F01D15/12 ,  F02C3/107 ,  F05D2260/40311

    摘要： A gas turbine engine turbine has a high pressure turbine configured to rotate with a high pressure compressor as a high pressure spool in a first direction about a central axis and a low pressure turbine configured to rotate with a low pressure compressor as a low pressure spool in the first direction about the central axis. A power density is greater than or equal to about 1.5 and less than or equal to about 5.5 lbf/cubic inches. A fan is connected to the low pressure spool via a speed changing mechanism and rotates in a second direction opposed to the first direction.

    摘要翻译： 燃气涡轮发动机涡轮机具有高压涡轮机，该高压涡轮机被构造成以围绕中心轴线的第一方向的高压压缩机作为高压压缩机旋转，以及构造成作为低压阀芯的低压压缩机旋转的低压涡轮机 关于中心轴的第一个方向。 功率密度大于或等于约1.5且小于或等于约5.5lbf /立方英寸。 风扇通过变速机构连接到低压阀芯，并沿与第一方向相反的第二方向旋转。