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公开(公告)号：US20230304573A1
公开(公告)日：2023-09-28
申请号：US18320642
申请日：2023-05-19
Applicant: General Electric Company
Inventor： William Howard Hasting , Donald Albert Bradley , Randy Thomas Antelo
CPC classification number: F16H57/082 , F02C7/36 , F16H2057/085 , F05D2260/40311
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：US10415429B2
公开(公告)日：2019-09-17
申请号：US14865265
申请日：2015-09-25
Applicant: General Electric Company
Inventor： William Howard Hasting , Donald Albert Bradley , Joseph Robert Dickman
IPC: F01D5/06 , F01D25/16 , F01D15/12 , F04D29/32 , F16H1/28 , F16H57/08 , F02C7/36 , F16C19/28 , F16C33/34 , F16C33/48
Abstract: A planet gearbox is provided for connection to a carrier of an epicyclic gearing arrangement with a single input and single output and including a sun gear, a ring gear and at least one double helix planet gear rotatable on a cylindrical roller bearing with a cage having a cross-web thickness of 15% to 25% of the diameter of the cylindrical rollers and an L/D ratio exceeding 1.0. A gas turbine engine includes a fan and LP shaft, which couples a compressor to a turbine. An epicyclic gearing arrangement has a single input from the LP shaft coupled to a sun gear, a single output coupled to the fan's shaft, and a planet bearing cage having a cross-web thickness measuring 15% to 25% of the roller's diameter.
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公开(公告)号：US09869190B2
公开(公告)日：2018-01-16
申请号：US14708353
申请日：2015-05-11
Applicant: General Electric Company
Inventor： Daniel Alan Niergarth , Brandon Wayne Miller , Donald Albert Bradley
CPC classification number: F01D7/02 , F01D5/02 , F01D21/08 , F02C3/04 , F05D2220/32 , F05D2220/36 , F05D2240/30 , F05D2260/53 , F05D2260/77 , F05D2260/79 , F05D2270/021 , F05D2270/09 , F05D2270/58 , Y02T50/673
Abstract: A pitch control mechanism includes: a rotor structure configured for rotation about a longitudinal axis; a row of blades carried by the rotor structure, each blade having an airfoil and a trunnion mounted for pivoting movement relative to the rotor structure, about a trunnion axis which is perpendicular to the longitudinal axis; a unison ring interconnecting the blades; an actuator connected to the unison ring and the rotor structure, operable to move the unison ring relative to the rotor structure; at least one moveable counterweight carried by the rotor structure, remote from the blades; and an interconnection between the blades and the counterweight, such that movement of the counterweight causes a change in the pitch angle of the blades.
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公开(公告)号：US20170219079A1
公开(公告)日：2017-08-03
申请号：US15008907
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 , F02C7/36 , F05D2260/40311 , F05D2260/96 , F16C19/28 , F16C27/045 , F16C2361/61 , F16H57/0471 , F16H57/08 , F16H57/082 , 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. 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.
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公开(公告)号：US20170089218A1
公开(公告)日：2017-03-30
申请号：US14865239
申请日：2015-09-25
Applicant: General Electric Company
Inventor： William Howard Hasting , Kenneth Lee Fisher , Donald Albert Bradley , Joseph Robert Dickman
CPC classification number: F01D25/16 , F01D5/06 , F01D15/12 , F02C7/36 , F04D29/321 , F04D29/325 , F05D2220/32 , F05D2240/50 , F05D2260/40311 , F16C19/28 , F16C33/34 , F16C2360/23 , F16C2361/61 , F16H1/28 , F16H57/08 , F16H2057/085 , Y02T50/671
Abstract: A planet gearbox is provided for connection to a carrier of an epicyclic gearing arrangement with a single input and single output and including a sun gear, a ring gear and at least one double helix planet gear rotatable on a cylindrical roller bearing wherein the ratio of each cylindrical roller's length to each cylindrical roller's diameter exceeds 1.0. A gas turbine engine includes a shaft coupling a compressor of a compressor section to a turbine of a turbine section. An epicyclic gearing arrangement has a single input from the shaft coupled to a sun gear, a single output from the carrier that is coupled to the shaft of a fan and includes a planet gearbox with cylindrical rollers having a length-to-diameter ratio exceeding 1.0.
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Patent Agency Ranking
公开(公告)号：US10816078B2
公开(公告)日：2020-10-27
申请号：US16136829
申请日：2018-09-20
Applicant: General Electric Company
Inventor： Brandon Wayne Miller , Randy M. Vondrell , Donald Albert Bradley , Bugra Han Ertas
Abstract: A planet gear train for an engine casing includes a sun gear rotatable by a shaft, a ring gear, a plurality of planet gears rotatably mounted in a planet carrier and meshing with the sun gear and the ring gear, and a damping system. The damping system includes a soft mount disposed about the shaft and coupling the planet carrier the engine casing. The soft mount includes a flexible inner sleeve and a flexible outer sleeve. The flexible inner sleeve and the flexible outer sleeve are fixedly coupled together at respective central portions thereof near the shaft. The damping system further includes a plurality of damping couplers disposed about an outer flange of the planet carrier. The plurality of damping couplers is configured to flexibly couple the flexible inner sleeve to the flexible outer sleeve.
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公开(公告)号：US10508731B2
公开(公告)日：2019-12-17
申请号：US15399291
申请日：2017-01-05
Applicant: General Electric Company
Inventor： Darren Lee Hallman , Donald Albert Bradley , Changjie Sun , Bugra Han Ertas
Abstract: A planet gear includes a pin and an annular planet gear rim. The pin has a pin radius. The pin includes a pin outer surface. The annular planet gear rim has an inner radius and an outer radius. The annular planet gear rim includes an inner surface and an outer surface. The inner surface and the pin outer surface define a clearance therebetween. The clearance is greater than 0 when a radial force is applied to the planet gear.
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公开(公告)号：US10227928B2
公开(公告)日：2019-03-12
申请号：US14761698
申请日：2014-01-14
Applicant: General Electric Company
Inventor： Craig Miller Kuhne , Christopher Charles Glynn , Randy M. Vondrell , Andrew Breeze-Stringfellow , Kurt David Murrow , Darek T. Zatorski , Donald Scott Yeager , Nicholas Rowe Dinsmore , Samuel Jacob Martin , Donald Albert Bradley
Abstract: A gas turbine engine comprises a fan, a compressor, a turbine having first stage blades and second stage blades, the first stage blades rotates in a first direction and the second stage blades rotates in a second direction opposite the first direction. The first stage blades are directly adjacent to one another, a drive in operable input connection with the fan and in operable output connection with the first stage blades and the second stage blades, the first stage blades and the second stage blades driving the fan through the drive.
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公开(公告)号：US10113633B2
公开(公告)日：2018-10-30
申请号：US15008907
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
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. 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.
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公开(公告)号：US20170089219A1
公开(公告)日：2017-03-30
申请号：US14865265
申请日：2015-09-25
Applicant: General Electric Company
Inventor： William Howard Hasting , Donald Albert Bradley , Joseph Robert Dickman
CPC classification number: F01D25/16 , F01D5/06 , F01D15/12 , F02C7/36 , F04D29/321 , F04D29/325 , F05D2220/32 , F05D2240/50 , F05D2260/40311 , F05D2300/20 , F16C19/28 , F16C33/34 , F16C33/485 , F16C2206/40 , F16C2240/46 , F16C2240/60 , F16C2360/23 , F16C2361/61 , F16H1/28 , F16H57/08 , F16H2057/085 , Y02T50/671
Abstract: A planet gearbox is provided for connection to a carrier of an epicyclic gearing arrangement with a single input and single output and including a sun gear, a ring gear and at least one double helix planet gear rotatable on a cylindrical roller bearing with a cage having a cross-web thickness of 15% to 25% of the diameter of the cylindrical rollers and an L/D ratio exceeding 1.0. A gas turbine engine includes a fan and LP shaft, which couples a compressor to a turbine. An epicyclic gearing arrangement has a single input from the LP shaft coupled to a sun gear, a single output coupled to the fan's shaft, and a planet bearing cage having a cross-web thickness measuring 15% to 25% of the roller's diameter.
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