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公开(公告)号：US20220056811A1
公开(公告)日：2022-02-24
申请号：US17364724
申请日：2021-06-30
Applicant: GE Avio S.r.l.
Inventor： Pietro Molesini , Andrea Piazza , Fabio De Bellis
IPC: F01D15/12
Abstract: A turbomachine engine can include a fan assembly, a vane assembly, a core engine, a gearbox, and a gearbox efficiency rating. The fan assembly can include a plurality of fan blades. The vane assembly can include a plurality of vanes, and the vanes can, in some instances, be disposed aft of the fan blades. The core engine can include one or more compressor sections and one or more turbine sections. The gearbox includes an input and an output. The input is coupled to the one or more turbine sections of the core engine and comprises a first rotational speed, the output is coupled to the fan assembly and has a second rotational speed, and a gear ratio of the first rotational speed to the second rotational speed is within a range of 4.1-14.0. The gearbox efficiency rating is 0.10-1.8.
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公开(公告)号：US20210388770A1
公开(公告)日：2021-12-16
申请号：US17347347
申请日：2021-06-14
Applicant: GE Avio S.r.l.
Inventor： Juraj Hrubec , Michele Gravina , Andrea Piazza
Abstract: A gear assembly for use with a turbomachine comprises a sun gear, a plurality of planet gear layshafts that each support a first stage planet gear and a second stage planet gear, and a ring gear. The sun gear is configured to rotate about a longitudinal centerline of the gear assembly, and the plurality of planet gear layshafts have a tubular shape.
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公开(公告)号：US12281618B2
公开(公告)日：2025-04-22
申请号：US18910905
申请日：2024-10-09
Applicant: General Electric Company , GE Avio S.r.l.
Inventor： Bugra H. Ertas , Ravindra Shankar Ganiger , Andrea Piazza , Arthur W. Sibbach
Abstract: A mounting assembly for a gearbox assembly of a gas turbine engine includes at least one mounting member configured to mount a gear of the gearbox assembly to a component of the gas turbine engine, the at least one mounting member characterized by a lateral impedance parameter, a bending impedance parameter, and a torsional impedance parameter. A gas turbine engine includes the mounting assembly. The at least one mounting member may be a flex mount, a fan frame, or a flex coupling. The gas turbine engine includes an electric power system including at least one electric machine. The electric power system includes a plurality of power converters and a plurality of power distribution management units. At least two of the plurality of power converters or the plurality of power distribution management units are integrated together in a single housing.
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公开(公告)号：US20250122842A1
公开(公告)日：2025-04-17
申请号：US18990617
申请日：2024-12-20
Applicant: General Electric Company , GE Avio S.r.l.
Inventor： Bugra H. Ertas , Xiaohua Zhang , Miriam Manzoni , Flavia Turi , Andrea Piazza , Arthur W. Sibbach
Abstract: A gearbox assembly includes a gearbox and a gutter for collecting a gearbox lubricant scavenge flow from the gearbox. The gutter is characterized by a lubricant extraction volume ratio between 0.01 and 0.3, inclusive of the endpoints. The lubricant extraction volume ratio defined by: VG/VGB. VG is a gutter volume of the gutter and VGB is a gearbox volume. A gas turbine engine includes the gearbox assembly. The gas turbine engine includes an electric power system including at least one electric machine. The electric power system includes a plurality of power converters and a plurality of power distribution management units. At least two of the plurality of power converters or the plurality of power distribution management units are integrated together in a single housing.
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公开(公告)号：US20250122836A1
公开(公告)日：2025-04-17
申请号：US18990706
申请日：2024-12-20
Applicant: General Electric Company , GE Avio S.r.l.
Inventor： Bugra H. Ertas , Xiaohua Zhang , Miriam Manzoni , Flavia Turi , Andrea Piazza , Arthur W. Sibbach , Brandon W. Miller
Abstract: A gearbox assembly includes a gearbox and a gutter for collecting a gearbox lubricant scavenge flow from the gearbox. The gutter is characterized by a lubricant extraction volume ratio between 0.01 and 0.3, and given by V G V G B . VG is a gutter volume of the gutter and VGB is a gearbox volume. A gas turbine engine includes a combustion section and the gearbox assembly. A fuel delivery system includes a fuel supply line for delivering fuel to the combustion section. A lubrication system includes a lubricant supply line for delivering lubricant to the gearbox assembly. A thermal management system includes a fuel-lubricant heat exchanger for cooling the lubricant with the fuel. The thermal management system selectively directs the fuel through fuel bypass lines or the lubricant through lubricant bypass lines to bypass the fuel-lubricant heat exchanger based on a fuel temperature or a lubricant temperature.
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Patent Agency Ranking
公开(公告)号：US20250116206A1
公开(公告)日：2025-04-10
申请号：US18751966
申请日：2024-06-24
Applicant: GE Avio S.r.l.
Inventor： Andrea Piazza
IPC: F01D25/20
Abstract: A lubrication system for a turbine engine. The turbine engine includes a propulsor and one or more rotating components. The lubrication system includes a sump, a primary lubrication system, an auxiliary lubrication system, and a kinetic energy storage system. The sump stores lubricant therein. The primary lubrication system supplies the lubricant from the sump to the one or more rotating components during normal operation of the turbine engine. The auxiliary lubrication system includes an auxiliary pump including an auxiliary pump shaft. The kinetic energy storage system includes a flywheel that engages the auxiliary pump shaft to power the auxiliary pump when the propulsor is windmilling such that the auxiliary pump pumps the lubricant from the sump to the one or more rotating components.
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公开(公告)号：US20250102058A1
公开(公告)日：2025-03-27
申请号：US18972185
申请日：2024-12-06
Applicant: General Electric Company , GE Avio S.r.l.
Inventor： Bugra H. Ertas , Xiaohua Zhang , Miriam Manzoni , Flavia Turi , Andrea Piazza , Arthur W. Sibbach , Brandon W. Miller
Abstract: A gearbox assembly includes a gearbox having a gear assembly and a gutter for collecting a gearbox lubricant scavenge flow from the gearbox. The gutter is characterized by a lubricant extraction volume ratio between 0.01 and 0.3, inclusive of the endpoints. The lubricant extraction volume ratio is defined by V G V GB . VG is a gutter volume of the gutter and VGB is a gearbox volume. A gas turbine engine includes the gearbox assembly and a lubrication system. The lubrication system includes a sump that is a primary reservoir having a first lubricant level and a secondary reservoir in the gearbox assembly. The secondary reservoir has a second lubricant level. The lubrication system fills the secondary reservoir with a lubricant between the first lubricant level and the second lubricant level. The gear assembly collects the lubricant in the secondary reservoir to supply the lubricant to the gear assembly.
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公开(公告)号：US20240254925A1
公开(公告)日：2024-08-01
申请号：US18604985
申请日：2024-03-14
Applicant: General Electric Company , GE Avio S.r.l.
Inventor： Andrea Piazza , Jeffrey D. Clements
CPC classification number: F02C7/36 , F02C3/067 , F02K3/06 , F05D2200/13 , F05D2200/14 , F05D2200/221 , F05D2260/40311 , F05D2260/98
Abstract: A turbomachine engine can include a fan assembly, a vane assembly, a core engine, a gearbox, and an overall engine efficiency rating. The fan assembly can include a plurality of fan blades. The vane assembly can include a plurality of vanes, and the vanes can, in some instances, be disposed aft of the fan blades. The core engine can include a low-pressure turbine. The gearbox includes an input and an output. The input of the gearbox is coupled to the low-pressure turbine of the core engine and comprises a first rotational speed, the output of the gearbox is coupled to the fan assembly and has a second rotational speed, and a gear ratio of the first rotational speed to the second rotational speed is within a range of 2.0-4.0.
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公开(公告)号：US20240240593A1
公开(公告)日：2024-07-18
申请号：US18419892
申请日：2024-01-23
Applicant: GE Avio S.r.l.
Inventor： Pietro Molesini , Andrea Piazza , Fabio De Bellis
CPC classification number: F02C7/36 , F01D25/18 , F05D2220/32 , F05D2260/40311 , F05D2260/98
Abstract: A turbomachine engine can include a fan assembly, a vane assembly, a core engine, and a gearbox. The fan assembly can include a plurality of fan blades. The vane assembly can include a plurality of vanes, and the vanes can be disposed aft of the fan blades. The core engine can include one or more compressor sections and one or more turbine sections. The gearbox includes an input and an output. The input is coupled to the one or more turbine sections of the core engine and comprises a first rotational speed, the output is coupled to the fan assembly and has a second rotational speed. A gear ratio of the first rotational speed to the second rotational speed is within a range of 4.1-14.0.
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公开(公告)号：US20230417185A1
公开(公告)日：2023-12-28
申请号：US18068017
申请日：2022-12-19
Applicant: General Electric Company , GE Avio S.r.l.
Inventor： Bugra H. Ertas , Xiaohua Zhang , Miriam Manzoni , Flavia Turi , Andrea Piazza , Arthur W. Sibbach
CPC classification number: F02C7/06 , F02C7/36 , F16H57/0408 , F16H57/0479 , F05D2260/40311 , F05D2260/98 , F05D2260/602
Abstract: A gearbox assembly includes a gearbox and a gutter for collecting a gearbox lubricant scavenge flow from the gearbox. The gutter is characterized by a lubricant extraction volume ratio between 0.01 and 0.3, inclusive of the endpoints. A gas turbine engine includes the gearbox assembly.
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