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公开(公告)号：US20200088106A1
公开(公告)日：2020-03-19
申请号：US16678317
申请日：2019-11-08
Applicant: General Electric Company
Inventor： Brandon Wayne Miller , Donald Albert Bradley
IPC: F02C7/36 , F02C7/20 , F16H57/028 , F01D25/04 , F02C3/107 , F01D25/28 , F02C3/04 , F16H1/28 , F16H57/00
Abstract: A gas turbine engine including a fan, a core including at least one rotatable shaft, and a gearbox mechanically coupling at least one rotatable shaft of the core to the fan is provided. The gas turbine engine also includes a coupling system for mounting the gearbox within the gas turbine engine. The coupling system includes a flexible coupling connected to at least one of a fan frame or a core frame, as well as a torque frame connected to the flexible coupling and the gearbox. Moreover, a deflection limiter is provided, loosely attaching the flexible coupling to the gearbox to provide a predetermined axial range of motion, radial range of motion, and circumferential range of motion between the gearbox and the frame to which the flexible coupling is attached.
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公开(公告)号：US20190186598A1
公开(公告)日：2019-06-20
申请号：US16284358
申请日：2019-02-25
Applicant: General Electric Company
Inventor： Kennneth Lee Fisher , Darren Lee Hallman , Bugra Han Ertas , Donald Albert Bradley , Haris Ligata , William Howard Hasting , Ning Fang , Gert Johannes van der Merwe , Mark Alan Rhoads
CPC classification number: F16H1/2809 , F02C7/36 , F16C19/361 , F16H57/082
Abstract: A planet gear includes an annular planet gear rim having a constant inner radius along a complete axial length and an outer radius defined as the radial distance to the root of the gear teeth. The annular planet gear rim further has an average rim radius defined at a halfway point between the constant inner radius and the outer radius. The average rim radius and the rim thickness define a ratio including values in a range from and including about 4 to and including about 9. A gear assembly and turbomachine including the planet gear are disclosed.
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公开(公告)号：US20180163566A1
公开(公告)日：2018-06-14
申请号：US15887330
申请日：2018-02-02
Applicant: General Electric Company
Inventor： Ning Charles Fang , Donald Albert Bradley , Gert J. van der Merwe
IPC: F01D25/20 , F01D25/08 , F01D25/10 , F01D25/18 , F01M1/16 , F01M5/00 , F02C7/057 , F02C7/06 , F02C7/14 , F16N27/00
Abstract: A lubrication system for a gas turbine engine includes a tank, a circulation pump, and a heat exchanger. The circulation pump generates a flow of lubricant from the tank to, e.g., a power gear box of the gas turbine engine and the heat exchanger removes an amount of heat from such flow of lubricant provided to the power gear box. The lubrication system also includes one or more valves in the flow of lubricant for controlling a flowrate and/or temperature of the lubricant provided to, e.g., the power gear box to increase an efficiency and/or durability of the power gear box.
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公开(公告)号：US20180080411A1
公开(公告)日：2018-03-22
申请号：US15267680
申请日：2016-09-16
Applicant: General Electric Company
Inventor： Brandon Wayne Miller , Donald Albert Bradley
CPC classification number: F02K3/06 , F02C3/10 , F02C3/107 , F02C7/36 , F05D2220/36 , F05D2260/40311
Abstract: A gas turbine engine includes a fan section and a core turbine engine. The fan section includes a fan and a fan shaft, with the fan including a plurality fan blades rotatable with the fan shaft. The core turbine engine includes a turbine section having a first turbine and a second turbine. The core turbine engine additionally includes a spool rotatable with the second turbine. An epicyclic power gearbox is also provided including a sun gear rotatable with the spool, a ring gear, and a total of four or less planet gears engaged between the sun gear and the ring gear. The power gearbox is configured such that a fan pressure ratio defined by the fan is greater than about 1.05 and less than about 1.50 during operation of the gas turbine engine.
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公开(公告)号：US20170191548A1
公开(公告)日：2017-07-06
申请号：US14984472
申请日：2015-12-30
Applicant: General Electric Company
Inventor： Kenneth Lee Fisher , Darren Lee Hallman , Bugra Han Ertas , Donald Albert Bradley , Haris Ligata , William Howard Hasting , Ning Fang , Gert Johannes van der Merwe , Mark Alan Rhoads
CPC classification number: F16H57/08 , F02C7/36 , F02K3/06 , F05D2260/40311
Abstract: A planet gear includes an annular planet gear ring including an annular planet gear rim. The annular planet gear rim has an inner radius and an outer radius. The inner radius and the outer radius define a rim thickness therebetween. The annular planet gear rim further has a bending stress neutral axis. The bending stress neutral axis radius and the rim thickness define a ratio including values in a range from and including about 3 to and including about 10.
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Patent Agency Ranking
公开(公告)号：US09677659B1
公开(公告)日：2017-06-13
申请号：US15008986
申请日：2016-01-28
Applicant: General Electric Company
Inventor： Daniel Alan Niergarth , Brandon Wayne Miller , Bugra Han Ertas , Donald Albert Bradley , Joseph Robert Dickman
CPC classification number: F16H57/0006 , F01D25/164 , F02C7/36 , F02K3/06 , F05D2260/40311 , F05D2260/96 , F16C19/28 , F16C27/045 , F16F15/0237 , F16H1/28 , F16H57/028 , F16H57/08 , F16H57/082 , F16H2057/0012 , F16H2057/085
Abstract: An epicyclic gearing arrangement includes a planet gear rotatable on a planet bearing that is mounted via a support pin to a carrier of the epicyclic gearing arrangement. An attenuation spring is disposed between the outer surface of the bearing's outer ring and the opposing inner surface of the planet gear and includes an annular gap. A spring film damper is disposed between the cylindrical outer surface of the support pin and the opposing inner surface of the inner ring of the planet bearing and includes an annular gap. The support pin (96) and/or outer ring include oil feed holes that open into the respective annular gap(s). A gas turbine engine includes an epicyclic gearing arrangement having such a planet bearing.
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公开(公告)号：US20160146112A1
公开(公告)日：2016-05-26
申请号：US14900643
申请日：2014-06-27
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Gert J. Van der Merwe , Donald Albert Bradley
CPC classification number: F02C7/36 , F02C7/32 , F02K3/06 , F05D2260/40311 , F05D2260/53 , F16H57/08 , F16H2057/085 , Y02T50/672
Abstract: An epicyclic gearbox comprises a gearbox housing including an inner cavity receiving an input shaft from a low pressure turbine and an output shaft connected to a fan. A sun gear is disposed within the housing and at least one planetary gear engages and orbits the sun gear. The at least one planetary gear is formed of a first material and an insert is disposed between a gear rim of the at least one planetary gear and a journal. The insert is formed of a second material distinct from the first material and of a weight which is lighter than the first material. The gearbox may include but is not limited to both star gearbox and planetary gearbox configurations.
Abstract translation: 行星齿轮箱包括齿轮箱壳体，其包括从低压涡轮机接收输入轴的内腔和连接到风扇的输出轴。 太阳齿轮设置在壳体内，并且至少一个行星齿轮接合并绕着太阳齿轮。 所述至少一个行星齿轮由第一材料形成，并且插入件设置在所述至少一个行星齿轮的齿轮边缘和轴颈之间。 插入件由不同于第一材料的第二材料和比第一材料轻的重物形成。 变速箱可以包括但不限于星形变速箱和行星齿轮箱配置。
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公开(公告)号：US20210054923A1
公开(公告)日：2021-02-25
申请号：US17079723
申请日：2020-10-26
Applicant: General Electric Company
Inventor： William Howard Hasting , Donald Albert Bradley , Randy Thomas Antelo
Abstract: An apparatus and a method of retaining a bearing assembly having a bore to a shaft received within the bore, the method comprising physically limiting the axial movement of the bearing assembly on the shaft by a retainer mounted to an end of the shaft and having a portion extending radially beyond the shaft and into an axial path of the bearing assembly.
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公开(公告)号：US10823005B2
公开(公告)日：2020-11-03
申请号：US15887330
申请日：2018-02-02
Applicant: General Electric Company
Inventor： Ning Charles Fang , Donald Albert Bradley , Gert J. van der Merwe
Abstract: A lubrication system for a gas turbine engine includes a tank, a circulation pump, and a heat exchanger. The circulation pump generates a flow of lubricant from the tank to, e.g., a power gear box of the gas turbine engine and the heat exchanger removes an amount of heat from such flow of lubricant provided to the power gear box. The lubrication system also includes one or more valves in the flow of lubricant for controlling a flowrate and/or temperature of the lubricant provided to, e.g., the power gear box to increase an efficiency and/or durability of the power gear box.
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公开(公告)号：US10787928B2
公开(公告)日：2020-09-29
申请号：US15364294
申请日：2016-11-30
Applicant: General Electric Company
Inventor： Andrew Michael Tompkins , Brandon Wayne Miller , Donald Albert Bradley , Michele Gravina , Daniel Alan Niergarth , Lorenzo Cipolla
Abstract: A casing for use in a turbofan engine is provided. The casing includes an inner hub, an intermediate casing positioned radially outward from the inner hub, an outer casing positioned radially outward from the intermediate casing, and a plurality of struts spaced circumferentially about the inner hub and extending between the inner hub and the outer casing. At least one strut of the plurality of struts includes a flow channel extending therethrough. The casing also includes a fluid scoop defined within the inner hub, and a collector that couples the fluid scoop in flow communication with the flow channel.
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