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公开(公告)号：US11603916B2
公开(公告)日：2023-03-14
申请号：US16691916
申请日：2019-11-22
Applicant: GE AVIO S.R.L.
Inventor： Andrea Piazza
IPC: F16H57/04 , F16N29/04 , G07C5/08 , F16H1/20 , F16H1/36 , F01M11/10 , F02C7/06 , F16C19/52 , G01M13/04
Abstract: Systems and methods of monitoring lubrication of a gear assembly during operation of a machine provide for receiving at a control system, a signal from a sensor indicative of a value obtained by the sensor for an electrical property of a circuit crossing the gear assembly operably coupled to the machine, ascertaining whether the value for the electrical property corresponds to a warning level for a condition of the lubricant film, and outputting a control command when the value for the electrical property corresponds to the warning level for the condition of the lubricant film.
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公开(公告)号：US20220397040A1
公开(公告)日：2022-12-15
申请号：US17835879
申请日：2022-06-08
Applicant: GE Avio S.r.l.
Inventor： Pietro Molesini , Fabio De Bellis , 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 comprise an interior passage that receives one or more lubrication supply lines.
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公开(公告)号：US11473507B2
公开(公告)日：2022-10-18
申请号：US17364707
申请日：2021-06-30
Applicant: GE Avio S.r.l.
Inventor： Pietro Molesini , Andrea Piazza , Fabio De Bellis
Abstract: A turbomachine engine can include a fan assembly, a pitch change mechanism, a vane assembly, a core engine, a gearbox, and a gearbox efficiency rating. The fan assembly can include a plurality of fan blades. The pitch change mechanism can be coupled to the fan assembly. The vane assembly can include a plurality of vanes. 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：US20190194793A1
公开(公告)日：2019-06-27
申请号：US16210078
申请日：2018-12-05
Applicant: GE AVIO S.R.L.
Inventor： Lorenzo Rigo , Andrea Piazza , Diana Di Gioia
CPC classification number: C23C8/38 , C21D1/06 , C21D9/32 , C22C38/44 , C22C38/52 , C23C8/02 , C23C8/34
Abstract: Methods for treating steel, along with the resulting treated steel, are provided. The method may comprise: nitriding a carburized Ferrium steel component such that the Ferrium steel component has a surface portion with a nitrogen content that is greater than 0% to about 5% by weight. Nitriding the Ferrium steel component may increase the surface hardness of the Ferrium steel. The surface portion may have a nitrogen content of about 0.05% to about 0.5% by weight.
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公开(公告)号：US20250122848A1
公开(公告)日：2025-04-17
申请号：US18990594
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 that is defined 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 the gearbox assembly, a fan, a combustor that generates combustion gases, a turbine, a nacelle that surrounds the fan, and a steam system. The combustor and the turbine define a core air flowpath. Core air flows through the core air flowpath. The steam system that extracts water from the combustion gases, vaporizes the water to generate steam, and injects the steam into the core air flowpath to add mass flow to the core air. A bypass ratio of the gas turbine engine is in a range of 18:1 to 100:1.
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Patent Agency Ranking
公开(公告)号：US20250122835A1
公开(公告)日：2025-04-17
申请号：US18990685
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 is defined by V G V GB . VG is a gutter volume of the gutter and VGB is a gearbox volume of the gearbox. A gas turbine engine includes the gearbox assembly and a lubrication system. The lubrication system includes a tank that stores a lubricant therein, one or more lubricant pumps for generating a flow of lubricant from the tank to the gearbox assembly, and a flow rate control valve. The flow rate control valve has a flow inlet and a flow outlet and defines a variable throughput from the flow inlet to the flow outlet for controlling a flowrate of the lubricant to the gearbox assembly.
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公开(公告)号：US20250116209A1
公开(公告)日：2025-04-10
申请号：US18751990
申请日：2024-06-24
Applicant: GE Avio S.r.l.
Inventor： Andrea Piazza
Abstract: A lubrication system for a turbine engine. The turbine engine includes a propulsor and 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. The primary lubrication system supplies the lubricant from the sump to the rotating components during normal operation of the turbine engine. The auxiliary lubrication system includes an auxiliary pump. The kinetic energy storage system includes a rotating lubricant accumulator. The auxiliary pump pumps the lubricant from the sump to the rotating lubricant accumulator to at least partially fill the rotating lubricant accumulator with the lubricant during the normal operation of the turbine engine to store kinetic energy. The rotating lubricant accumulator releases the kinetic energy when the propulsor is windmilling to supply the lubricant from the rotating lubricant accumulator to the rotating components.
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公开(公告)号：US20250084799A1
公开(公告)日：2025-03-13
申请号：US18671084
申请日：2024-05-22
Applicant: General Electric Company , GE Avio S.r.l.
Inventor： Brandon Wayne Miller , Andrew Hudecki , Kevin Richard Graziano , Arthur William Sibbach , Inenhe Mohammed Khalid , Andrea Piazza , Stefan Joseph Cafaro
Abstract: A gas turbine engine includes a fan section having a fan rotatable with a fan shaft, a turbomachinery section having a turbine and a turbomachine shaft rotatable with the turbine, a power gearbox mechanically coupled to the fan shaft and the turbomachine shaft such that the fan shaft is rotatable by the turbomachine shaft across the power gearbox, a grounded structure coupled to and supporting the power gearbox, and a torque monitoring system. The torque monitoring system includes a gearbox sensor. The gearbox sensor is coupled to the grounded structure and the torque monitoring system configured to determine a torque across the power gearbox using the gearbox sensor.
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公开(公告)号：US20250027455A1
公开(公告)日：2025-01-23
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：US12163478B2
公开(公告)日：2024-12-10
申请号：US18606371
申请日：2024-03-15
Applicant: General Electric Company , GE Avio S.r.l.
Inventor： Andrea Piazza , Jeffrey D. Clements
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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