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1.发明申请GEARED TURBOFAN GAS TURBINE ENGINE WITH RELIABILITY CHECK ON GEAR CONNECTION 审中-公开具有可靠性的GEARED TURBOFAN气动涡轮发动机检查齿轮连接公开(公告)号：US20130219913A1
公开(公告)日：2013-08-29
申请号：US13440085
申请日：2012-04-05
CPC分类号： F01D21/003 , F02K3/06 , F05D2260/40311 , F05D2260/80 , F05D2270/021 , F05D2270/022
摘要： A gas turbine engine includes a fan and a compressor. A combustor drives a turbine, including a first turbine with a shaft to drive the compressor. A fan drive turbine drives the fan through a speed reduction. A sensor senses a speed of rotation of the fan and communicates sensed speed information to a control. The control develops an expected speed for the fan. A problem is identified should the sensed speed be less than the expected speed by more than a predetermined amount. A method is also described.
摘要翻译： 燃气涡轮发动机包括风扇和压缩机。 燃烧器驱动涡轮机，包括具有轴的第一涡轮机以驱动压缩机。 风扇驱动器涡轮机通过减速来驱动风扇。 传感器感测风扇的旋转速度并将感测的速度信息传送到控制器。 控制开发出风扇的预期速度。 如果感测的速度小于预期速度超过预定量，则识别出问题。 还描述了一种方法。
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公开(公告)号：US08939864B2
公开(公告)日：2015-01-27
申请号：US13340743
申请日：2011-12-30
CPC分类号： F01D5/027 , F01D25/18 , F05D2220/36 , F05D2240/70 , F05D2260/34 , F05D2260/40311 , F05D2260/98 , F16H57/0423 , F16H57/0479 , F16H57/0486 , F16H2057/085
摘要： A turbine engine includes a fan shaft and at least one tapered bearing mounted on the fan shaft. The fan shaft includes at least one radially extending passage adjacent the at least one tapered bearing. A fan is mounted for rotation on the tapered bearing. An epicyclic gear train is coupled to drive the fan. The epicyclic gear train includes a carrier that supports star gears that mesh with a sun gear, and a ring gear that surrounds and meshes with the star gears. Each of the star gears is supported on a respective journal bearing. The epicyclic gear train defines a gear reduction ratio of greater than or equal to about 2.3.
摘要翻译： 涡轮发动机包括风扇轴和安装在风扇轴上的至少一个锥形轴承。 风扇轴包括与至少一个锥形轴承相邻的至少一个径向延伸的通道。 风扇安装在锥形轴承上旋转。 一个行星齿轮系被联接以驱动风扇。 行星齿轮系包括支撑与太阳齿轮啮合的星形齿轮的载体和围绕并与星形齿轮啮合的齿圈。 每个星形齿轮都支撑在相应的轴颈轴承上。 行星齿轮系确定齿轮减速比大于或等于约2.3。
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公开(公告)号：US08858388B2
公开(公告)日：2014-10-14
申请号：US13340737
申请日：2011-12-30
CPC分类号： F02C7/36 , F01D5/027 , F02C3/107 , F02K3/06 , F05D2220/36 , F05D2240/70 , F05D2260/34 , F05D2260/4031 , F05D2260/40311 , F16H1/28 , F16H57/0423 , F16H57/0486 , F16H2057/085
摘要： An epicyclic gear train includes a carrier that supports star gears that mesh with a sun gear. A ring gear surrounds and meshes with the star gears. The star gears are supported on respective journal bearings. Each of the journal bearings includes a peripheral journal surface and each of the star gears includes a radially inner journal surface that is in contact with the peripheral journal surface of the respective journal bearing. The epicyclic gear train has a gear reduction ratio of greater than or equal to about 2.3.
摘要翻译： 行星齿轮系包括支撑与太阳齿轮啮合的星形齿轮的载体。 环形齿轮围绕并与星形齿轮啮合。 星形齿轮支撑在相应的轴颈轴承上。 每个轴颈轴承包括周向轴颈表面，并且每个星形齿轮包括与相应的轴颈轴承的周向轴颈表面接触的径向内部轴颈表面。 行星齿轮系具有大于或等于约2.3的齿轮减速比。
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4.发明申请GEARED TURBOFAN GAS TURBINE ENGINE WITH RELIABILITY CHECK ON GEAR CONNECTION 审中-公开具有可靠性的GEARED TURBOFAN气动涡轮发动机检查齿轮连接公开(公告)号：US20140216053A1
公开(公告)日：2014-08-07
申请号：US13595155
申请日：2012-08-27
IPC分类号： F01D21/00
CPC分类号： F01D21/003 , F02K3/06 , F05D2260/40311 , F05D2260/80 , F05D2270/021 , F05D2270/022
摘要： A gas turbine engine includes a fan and a compressor. A combustor drives a turbine, including a first turbine with a shaft to drive the compressor. A fan drive turbine drives the fan through a speed reduction. A sensor senses a speed of rotation of the fan and communicates sensed speed information to a control. The control develops an expected speed for the fan. A problem is identified should the sensed speed be less than the expected speed by more than a predetermined amount. A method is also described.
摘要翻译： 燃气涡轮发动机包括风扇和压缩机。 燃烧器驱动涡轮机，包括具有轴的第一涡轮机以驱动压缩机。 风扇驱动器涡轮机通过减速来驱动风扇。 传感器感测风扇的旋转速度并将感测的速度信息传送到控制器。 控制开发出风扇的预期速度。 如果感测的速度小于预期速度超过预定量，则识别出问题。 还描述了一种方法。
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公开(公告)号：US08708863B2
公开(公告)日：2014-04-29
申请号：US13340735
申请日：2011-12-30
IPC分类号： F16H57/04
CPC分类号： F01D5/027 , F02C7/32 , F05D2220/36 , F05D2240/70 , F05D2260/34 , F05D2260/40311 , F16H57/0423 , F16H57/0479 , F16H57/0486 , F16H2057/085
摘要： An epicyclic gear train includes a carrier that supports star gears that mesh with a sun gear. A ring gear surrounds and meshes with the star gears. Each of the star gears is supported on a respective journal bearing. Each journal bearing includes an internal central cavity and at least one passage that extends radially from the internal cavity to a peripheral journal surface of the respective journal bearing. The epicyclic gear train has a gear reduction ratio of greater than or equal to about 2.3.
摘要翻译： 行星齿轮系包括支撑与太阳齿轮啮合的星形齿轮的载体。 环形齿轮围绕并与星形齿轮啮合。 每个星形齿轮都支撑在相应的轴颈轴承上。 每个轴颈轴承包括内部中心腔和至少一个从内腔径向延伸到相应轴颈轴承的周向轴颈表面的通道。 行星齿轮系具有大于或等于约2.3的齿轮减速比。
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公开(公告)号：US20120275904A1
公开(公告)日：2012-11-01
申请号：US13340743
申请日：2011-12-30
IPC分类号： F01D15/12
CPC分类号： F01D5/027 , F01D25/18 , F05D2220/36 , F05D2240/70 , F05D2260/34 , F05D2260/40311 , F05D2260/98 , F16H57/0423 , F16H57/0479 , F16H57/0486 , F16H2057/085
摘要： A turbine engine includes a fan shaft and at least one tapered bearing mounted on the fan shaft. The fan shaft includes at least one radially extending passage adjacent the at least one tapered bearing. A fan is mounted for rotation on the tapered bearing. An epicyclic gear train is coupled to drive the fan. The epicyclic gear train includes a carrier that supports star gears that mesh with a sun gear, and a ring gear that surrounds and meshes with the star gears. Each of the star gears is supported on a respective journal bearing. The epicyclic gear train defines a gear reduction ratio of greater than or equal to about 2.3
摘要翻译： 涡轮发动机包括风扇轴和安装在风扇轴上的至少一个锥形轴承。 风扇轴包括与至少一个锥形轴承相邻的至少一个径向延伸的通道。 风扇安装在锥形轴承上旋转。 一个行星齿轮系被联接以驱动风扇。 行星齿轮系包括支撑与太阳齿轮啮合的星形齿轮的载体和围绕并与星形齿轮啮合的齿圈。 每个星形齿轮都支撑在相应的轴颈轴承上。 行星齿轮系确定齿轮减速比大于或等于约2.3
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公开(公告)号：US20120213628A1
公开(公告)日：2012-08-23
申请号：US13346120
申请日：2012-01-09
IPC分类号： F02C7/36
CPC分类号： F01D5/027 , F02C7/36 , F05D2220/323 , F05D2220/36 , F05D2240/70 , F05D2260/34 , F05D2260/4031 , F05D2260/40311
摘要： A geared architecture with a flex mount for a fan drive gear system.
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公开(公告)号：US20120243971A1
公开(公告)日：2012-09-27
申请号：US13486766
申请日：2012-06-01
CPC分类号： F01D5/027 , F02C7/32 , F05D2220/36 , F05D2240/70 , F05D2260/34 , F05D2260/40311 , F16H57/0423 , F16H57/0479 , F16H57/0486 , F16H2057/085
摘要： An epicyclic gear train includes a carrier that supports star gears that mesh with a sun gear. A ring gear surrounds and meshes with the star gears. Each of the star gears is supported on a respective journal bearing. Each journal bearing includes an internal central cavity and at least one passage that extends radially from the internal cavity to a peripheral journal surface of the respective journal bearing. The epicyclic gear train has a gear reduction ratio of greater than or equal to about 2.3.
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公开(公告)号：US20120238401A1
公开(公告)日：2012-09-20
申请号：US13340735
申请日：2011-12-30
IPC分类号： F16H57/08
CPC分类号： F01D5/027 , F02C7/32 , F05D2220/36 , F05D2240/70 , F05D2260/34 , F05D2260/40311 , F16H57/0423 , F16H57/0479 , F16H57/0486 , F16H2057/085
摘要： An epicyclic gear train includes a carrier that supports star gears that mesh with a sun gear. A ring gear surrounds and meshes with the star gears. Each of the star gears is supported on a respective journal bearing. Each journal bearing includes an internal central cavity and at least one passage that extends radially from the internal cavity to a peripheral journal surface of the respective journal bearing. The epicyclic gear train has a gear reduction ratio of greater than or equal to about 2.3.
摘要翻译： 行星齿轮系包括支撑与太阳齿轮啮合的星形齿轮的载体。 环形齿轮围绕并与星形齿轮啮合。 每个星形齿轮都支撑在相应的轴颈轴承上。 每个轴颈轴承包括内部中心腔和至少一个从内腔径向延伸到相应轴颈轴承的周向轴颈表面的通道。 行星齿轮系具有大于或等于约2.3的齿轮减速比。
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公开(公告)号：US20120237335A1
公开(公告)日：2012-09-20
申请号：US13484722
申请日：2012-05-31
IPC分类号： F01D15/12
CPC分类号： F01D5/027 , F02C7/36 , F05D2220/323 , F05D2220/36 , F05D2240/70 , F05D2260/34 , F05D2260/4031 , F05D2260/40311
摘要： A geared architecture with a flex mount for a fan drive gear system.
摘要翻译： 具有用于风扇驱动齿轮系统的柔性安装座的齿轮架构。
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