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91.发明授权公开(公告)号：US08814503B2
公开(公告)日：2014-08-26
申请号：US14164364
申请日：2014-01-27
Applicant: United Technologies Corporation
Inventor： Michael E. McCune , Jason Husband
CPC classification number: F01D25/164 , F01D15/12 , F01D25/34 , F02C7/36 , F05D2260/40311 , F05D2260/53 , Y02T50/671 , Y10T29/49229
Abstract: A gas turbine engine includes a fan shaft and a support which supports the fan shaft. The support defines a support lateral stiffness. A gear system drives the fan shaft. A flexible support at least partially supports the gear system, and defines a flexible support lateral stiffness with respect to the support lateral stiffness. An input to the gear system defines an input lateral stiffness with respect to the support lateral stiffness. A method of designing a gas turbine engine is also disclosed.
Abstract translation: 燃气涡轮发动机包括风扇轴和支撑风扇轴的支撑件。 支撑件限定了支撑横向刚度。 齿轮系驱动风扇轴。 柔性支撑件至少部分地支撑齿轮系统，并且相对于支撑横向刚度限定柔性支撑横向刚度。 齿轮系统的输入限定了相对于支撑横向刚度的输入横向刚度。 还公开了一种设计燃气涡轮发动机的方法。
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公开(公告)号：US20140194240A1
公开(公告)日：2014-07-10
申请号：US14204031
申请日：2014-03-11
Applicant: United Technologies Corporation
Inventor： Michael E. McCune
CPC classification number: F16H57/043 , F02C7/32 , F05D2260/40311 , F16C33/02 , F16H57/0479 , F16H2057/085 , Y02T50/671 , Y10T29/49464
Abstract: An example journal pin includes a generally cylindrical body disposed on an axis having a supply passage. A first chamber and a second chamber are disposed in the generally cylindrical body and are in fluid communication with the supply passage. A recess on an outer diameter of the cylindrical body is in fluid communication with the first chamber and the second chamber. The first chamber and second chamber are each radially outward of the supply passage and including an outlet to the recess. The first chamber and second chamber each have a first section radially inward of a second section. A cross sectional area of the second section is greater than a cross sectional area of the corresponding first section.
Abstract translation: 示例轴颈销包括设置在具有供给通道的轴线上的大致圆柱形的主体。 第一腔室和第二腔室设置在大致圆柱形的本体中并且与供应通道流体连通。 圆筒体的外径上的凹部与第一腔室和第二腔室流体连通。 第一腔室和第二腔室各自在供应通道的径向外侧并且包括到凹部的出口。 第一室和第二室各自具有第二部分的径向内侧的第一部分。 第二部分的横截面面积大于对应的第一部分的横截面面积。
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公开(公告)号：US20140087907A1
公开(公告)日：2014-03-27
申请号：US13727868
申请日：2012-12-27
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： James B. Coffin , Michael E. McCune , William G. Sheridan
IPC: F16H57/04
CPC classification number: F16H57/0467 , F01D25/18 , F02C7/36 , F05D2220/32 , F05D2260/30 , F05D2260/31 , F05D2260/40311 , F05D2260/98 , F16H57/025 , F16H57/0479
Abstract: An example epicyclic gear train assembly includes a flexure pin received by a carrier. The flexure pin and the carrier respectively include first and second pin apertures configured to receive a retainer pin. The flexure pin further includes a lubricant conduit separate from the first pin aperture.
Abstract translation: 示例性行星齿轮系组件包括由载体接收的挠曲销。 挠曲销和托架分别包括构造成接收保持销的第一和第二销孔。 挠曲销还包括与第一销孔分开的润滑剂导管。
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公开(公告)号：US20140020404A1
公开(公告)日：2014-01-23
申请号：US14034720
申请日：2013-09-24
Applicant: United Technologies Corporation
Inventor： William G. Sheridan , Michael E. McCune , Frederick M. Schwarz , Daniel Bernard Kupratis , Gabriel L. Suciu , William K. Ackermann , Jason Husband
IPC: F02C7/06
CPC classification number: F02C7/06 , F01D25/18 , F02C3/107 , F02K3/06 , F05D2260/4031 , Y02T50/671
Abstract: A fan drive gear system for a gas turbine engine includes a gear system that provides a speed reduction between a fan drive turbine and a fan and a mount flexibly supporting portions of the gear system. A lubrication system supporting the fan drive gear system provides lubricant to the gear system and removes thermal energy produced by the gear system. The lubrication system includes a capacity for removing energy equal to less than about 2% of energy input into the gear system.
Abstract translation: 用于燃气涡轮发动机的风扇驱动齿轮系统包括在风扇驱动涡轮机和风扇之间提供减速的齿轮系统和齿轮系统的柔性支撑部分的安装件。 支持风扇驱动齿轮系统的润滑系统为齿轮系统提供润滑剂，并去除由齿轮系产生的热能。 润滑系统包括能量消除等于输入到齿轮系统中的能量的小于约2％的能量。
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95.发明申请公开(公告)号：US20130331224A1
公开(公告)日：2013-12-12
申请号：US13938476
申请日：2013-07-10
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Michael E. McCune , Jason Husband
IPC: F16H57/028
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。
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Patent Agency Ranking
公开(公告)号：US11280221B2
公开(公告)日：2022-03-22
申请号：US16590666
申请日：2019-10-02
Applicant: United Technologies Corporation
Inventor： Paul H. Dolman , Michael E. McCune
Abstract: A disclosed lubrication system for a turbofan engine includes a pump for driving lubricant through a lubrication circuit, at least one sensor generating a signal indicative of an engine operating condition and at least one valve for controlling a flow of lubricant through the lubrication circuit. A controller controls operation of the valve to vary the flow of lubricant based on the engine operating condition to maintain lubricant flow within predefined operating limits.
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公开(公告)号：US10995673B2
公开(公告)日：2021-05-04
申请号：US15410113
申请日：2017-01-19
Applicant: United Technologies Corporation
Inventor： Gabriel L. Suciu , Hung Duong , Jonathan F. Zimmitti , William G. Sheridan , Michael E. McCune , Brian Merry
IPC: F02C7/32 , F02C3/06 , F02C7/18 , F02C7/36 , F02C7/268 , F01D15/10 , F01D25/12 , F16H1/22 , H02K7/116 , H02K7/18 , F01D15/12 , F02C7/275
Abstract: An exemplary gas turbine engine assembly includes a first spool having a first turbine operatively mounted to a first turbine shaft, and a second spool having a second turbine operatively mounted to a second turbine shaft. The first and second turbines are mounted for rotation about a common rotational axis within an engine static structure. The first and second turbine shafts are coaxial with one another. First and second towershafts are respectively coupled to the first and second turbine shafts. An accessory drive gearbox has a set of gears. A compressor is driven by the first towershaft. The engine assembly further includes a starter generator assembly, and a transmission coupling the starter generator assembly to the first set of gears. The transmission is transitionable between a first mode where the starter generator assembly is driven at a first speed relative to the second towershaft, and a second mode where the starter generator assembly is driven at a different, second speed relative to the second towershaft.
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公开(公告)号：US20200284336A1
公开(公告)日：2020-09-10
申请号：US16833754
申请日：2020-03-30
Applicant: United Technologies Corporation
Inventor： William G. Sheridan , Michael E. McCune
Abstract: A method of assembling an epicyclic gear train includes providing a unitary carrier that includes spaced apart walls and circumferentially spaced mounts interconnecting the walls, spaced apart apertures provided between the mounts at an outer circumference of the carrier, gear pockets provided between the walls and mounts extending to the apertures, and a central opening in at least one of the walls, inserting an intermediate gear through the central opening and moving the intermediate gear radially into the gear pocket to extend through the aperture, inserting a baffle into the carrier, and inserting a sun gear through the central opening to intermesh with the intermediate gear.
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公开(公告)号：US20200278022A1
公开(公告)日：2020-09-03
申请号：US16819322
申请日：2020-03-16
Applicant: United Technologies Corporation
Inventor： Michael E. McCune , Lawrence E. Portlock
Abstract: An epicyclic gear train for a gas turbine engine according to an example of the present disclosure includes, among other things, a gutter having an annular channel, a sun gear rotatable about an axis, intermediary gears arranged circumferentially about and meshing with the sun gear, a carrier supporting the intermediary gears, and a ring gear arranged about and intermeshing with the intermediary gears, the ring gear having an aperture axially aligned with the annular channel. The ring gear includes axially spaced apart walls that extend radially outward to define a passageway, and the passageway is arranged radially between the aperture and the annular channel such that the walls inhibit an axial flow of an oil passing from the aperture toward the annular channel.
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公开(公告)号：US20200277918A1
公开(公告)日：2020-09-03
申请号：US16736013
申请日：2020-01-07
Applicant: United Technologies Corporation
Inventor： Michael E. McCune , Lawrence E. Portlock , Frederick M. Schwarz
Abstract: A gas turbine engine includes a bypass ratio greater than about ten (10). A fan is supported on a fan shaft and has a plurality of fan blades. A gear system is connected to the fan shaft and a plurality of planetary gears. A first set of opposed angled ring gear teeth are separated from a second set of opposed angled ring gear teeth. A lubricant flow path is located axially between the first set of opposed angled ring gear teeth and the second set of opposed angled ring gear teeth. An annular channel axially is aligned with the lubricant flow path. A low pressure turbine has an inlet, an outlet, and a low pressure turbine pressure ratio greater than 5:1. A low fan pressure ratio is less than 1.45 across the fan blade alone.
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