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公开(公告)号：US20210246835A1
公开(公告)日：2021-08-12
申请号：US17173523
申请日：2021-02-11
Applicant: GE Avio S.r.l.
Inventor： Marco Garabello , Alessio Gargioli , Fabrizio Bussi , Giuseppe Argentieri , Salvatore Garofalo
Abstract: A gearbox assembly for a gas turbine engine includes a planetary gear set comprising a sun gear, a planet gear, and a ring gear, the sun gear configured for connection to a first drive shaft of the gas turbine engine and the ring gear configured for connection to a second drive shaft of the gas turbine engine, and an electric machine assembly comprising an input and an electric machine. The electric machine comprising a rotor coupled to the input and a stator fixedly positioned within the gearbox assembly, the input of the electric machine assembly coupled to one of the sun gear, the ring gear, or the planet gear of the planetary gear set.
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公开(公告)号：US20210087936A1
公开(公告)日：2021-03-25
申请号：US17025536
申请日：2020-09-18
Applicant: GE Avio S.r.l.
Inventor： Antonio Giuseppe D'Ettole
Abstract: A shroud assembly for a rotary component of a gas turbine engine defining a central axis extending along an axial direction, a radial direction extending perpendicular to the axial direction, and a circumferential direction perpendicular to both the central axis and the radial direction. The shroud assembly includes a plurality of tip shrouds, and each of the plurality of tip shrouds includes a shroud band. Further, each tip shroud of the plurality of tip shrouds is coupled to one of the plurality of rotor blades at a tip end. The plurality of tip shrouds includes a first tip shroud defining a first length in a first direction and a second tip shroud defining a second length in the first direction. Moreover, the second length is different than the first length.
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公开(公告)号：US20210079951A1
公开(公告)日：2021-03-18
申请号：US17014189
申请日：2020-09-08
Applicant: GE Avio S.r.l.
Inventor： Andrea Donnini , Ivan Borra
Abstract: An axially hyperstatic system softener for a transmission comprising a static component and a rotatable component mounted to each other by a double ball bearing having an outer race and an inner race includes first and second biasing elements in a rigid sleeve with the outer race disposed between the first and second biasing elements. The rotatable component includes two shafts splined together with the static component mounted to one of the shafts by the bearing double ball bearing. A shim between one of the biasing elements and the sleeve enables tuning the softener.
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公开(公告)号：US20210079855A1
公开(公告)日：2021-03-18
申请号：US16920159
申请日：2020-07-02
Applicant: GE Aviation Czech s.r.o. , GE Avio S.r.l.
Inventor： Giuseppe Cervelli , Simone Castellani , Miriam Manzoni , Giuseppe Bellocchio , Vojtech Jirasek
Abstract: A variable pitch propeller assembly operatively coupled with an engine and methods for controlling the pitch of a plurality of propeller blades thereof is provided. In one example aspect, the variable pitch propeller assembly includes features for combining overspeed, feathering, and reverse functionality in a single secondary control valve. The secondary control valve is operable to selectively allow a controlled amount of hydraulic fluid to flow to or from a pitch actuation assembly such that the pitch of the propeller blades can be adjusted to operate the variable pitch propeller assembly in one of a constant speed mode, a feather mode, and a reverse mode.
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公开(公告)号：US10605333B2
公开(公告)日：2020-03-31
申请号：US16035734
申请日：2018-07-16
Applicant: GE Avio S.r.l.
Inventor： Michele Gravina
Abstract: A transmission device to divide torque between gears. The device comprising a coaxial motion input member and transmission members and comprising shafts having gears at an axial end. Flanges which project radially outwards from the shafts, at the opposite axial end with respect to the gears, are axially facing and arranged abutting against each other, and are fixed to the motion input member to divide the torque transmitted by the motion input member between the flanges. The second shaft being axially hollow. The first shaft comprising a first intermediate portion having an outside diameter smaller than the inside diameter of the second shaft and housed at least with radial clearance in the second shaft. The flanges comprise respective portions configured to deform under the action of forces acting between the motion input member and the gears to enable a fluctuation of the shafts with respect to an axis.
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Patent Agency Ranking
公开(公告)号：US09810082B2
公开(公告)日：2017-11-07
申请号：US14236762
申请日：2012-08-03
Applicant: Paolo Calza
Inventor： Paolo Calza
CPC classification number: F01D9/041 , F01D5/14 , F01D9/04 , F01D25/06 , F05D2240/12 , F05D2240/129 , F05D2260/96 , Y02T50/671
Abstract: A gas turbine stator for aircraft engines has a blade array with a plurality of blades constituted by a series of first blades and a series of second blades with different geometries; the array is formed by a plurality of sectors, each having an inner portion, an outer portion, at least one first blade and a least one second blade, and each defined by a body made in one piece; a single first blade is alternated with a single second blade for the entire circumference of the stator.
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公开(公告)号：US09790810B2
公开(公告)日：2017-10-17
申请号：US14407918
申请日：2013-06-14
Applicant: GE AVIO S.R.L
Inventor： Daniele Coutandin , Stefano Zecchi
CPC classification number: F01D25/12 , F01D11/24 , F01D25/145 , F02C7/18 , F05D2220/32 , F05D2250/712 , F05D2260/201 , F05D2260/231 , Y02T50/672 , Y02T50/676
Abstract: In a gas turbine for aeronautic engines, a stator body delimited by an outer lateral surface is cooled by an air cooling device having a plurality of circumferential tubes for distributing air on the outer lateral surface; each circumferential tube having a plurality of outlets for guiding respective cooling airflows towards the outer lateral surface and into a respective circumferential channel obtained between two groups of circumferential channels adjacent to each other and lapped by the flow of air leaving the circumferential channel.
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公开(公告)号：US09662603B2
公开(公告)日：2017-05-30
申请号：US14143837
申请日：2013-12-30
Applicant: GE AVIO S.r.l.
Inventor： Stefano Zecchi , Federico Dellavalle , Daniele Coutandin
CPC classification number: B01D46/0056 , B01D39/10 , B01D46/26 , B01D2239/10
Abstract: A filtering net, in particular for a rotary separator, has a plurality of cells, which are substantially equal to one another and are defined by the replication of a base cell along two transversal directions of replication; the base cell comprises at least one intermediate filament and a first and a second end filament, arranged on opposite sides of the intermediate filament; the intermediate filament and the end filaments extend along respective longitudinal axes which are parallel; cross-sectioning the base cell with any plane orthogonal to the longitudinal axes of the filaments and joining, on said plane, the trace of each longitudinal axis with the trace of the adjacent longitudinal axis by a respective straight line, the two straight lines are incident at the trace of the longitudinal axis of the intermediate filament and form an incidence angle of between approximately 90° and 160°.
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公开(公告)号：US09623361B2
公开(公告)日：2017-04-18
申请号：US14143976
申请日：2013-12-30
Applicant: GE AVIO S.r.l.
Inventor： Stefano Zecchi , Federico Dellavalle , Daniele Coutandin
CPC classification number: B01D46/26 , B01D2275/202 , B01D2279/60
Abstract: A filtering body, in particular for a rotary separator, extends about an axis and has a two opposite axial faces, a radially outer surface and a radially inner surface; the filtering body comprises a filtering net constituted by filaments defining a plurality of pores between them; a frame, which is defined by non-porous solid elements, supports the filtering net and made in one piece with a filtering net; the frame has at least one element arranged in an intermediate radial position between the radially outer and inner surfaces.
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公开(公告)号：US09132372B2
公开(公告)日：2015-09-15
申请号：US14143791
申请日：2013-12-30
Applicant: GE AVIO S.r.I.
Inventor： Stefano Zecchi , Federico Dellavalle , Daniele Coutandin
CPC classification number: B01D46/0056 , B01D39/10 , B01D46/26 , B01D2275/202 , B01D2279/60
Abstract: A filtering body, in particular for a rotary separator, which extends about an axis, has two opposite axial faces and is provided with a filtering net constituted by filaments defining a plurality of pores between them and with a frame, which is defined by non-porous solid elements, supports the filtering net and is made in one piece with the filtering net; at least some of the filaments of the filtering net extend from one of the axial faces along respective longitudinal axes, which are parallel.
Abstract translation: 特别是用于围绕轴线延伸的旋转分离器的过滤体具有两个相对的轴向面，并且设置有由在其间限定多个孔和由框架限定的框架构成的过滤网， 多孔固体元件，支撑过滤网，并与过滤网一体制成; 过滤网中的至少一些细丝沿着相应的纵向轴线从一个轴向表面延伸，所述纵向轴线是平行的。
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