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公开(公告)号：US20200300175A1
公开(公告)日：2020-09-24
申请号：US16811582
申请日：2020-03-06
Applicant: GE Avio S.r.l.
Inventor： Giulio Zagato , Saypen Baraggia Au Yeung , Giuseppe Casamirra
Abstract: In one exemplary embodiment of the present disclosure a gas turbine engine defining a radial direction and an axial direction is provided. The gas turbine engine includes a stationary frame, a compressor and a turbine, the compressor or the turbine including a first plurality of rotor blades and a second plurality of rotor blades, the first plurality of rotor blades and second plurality of rotor blades alternatingly spaced along the axial direction and rotatable with one another; and a gearbox including a first gear coupled to the first plurality of rotor blades, a second gear coupled to the second plurality of rotor blades, and an intermediate gear positioned between the first gear and the second gear and coupled to the stationary frame, the intermediate gear defining an axis of rotation, the axis of rotation defining an angle with the radial direction less than about 75 degrees.
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公开(公告)号：US20240240566A1
公开(公告)日：2024-07-18
申请号：US18456817
申请日：2023-08-28
Applicant: GE Avio S.r.l.
Inventor： Paolo Altamura , Giulio Zagato
CPC classification number: F01D7/00 , F15B15/02 , F05D2260/30
Abstract: A pitch lock system including an outer member having a centerline axis, an inner member located radially inward of the outer member with respect to the centerline axis, and a plurality of clutch elements located between the outer member and the inner member. The pitch lock system has a disengaged position and an engaged position. In the engaged position, the plurality of clutch elements are constrained between the inner member and the outer member such that relative axial direction of the plurality of clutch elements is permitted in only one direction. An engine includes a pitch actuator and the pitch lock system.
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公开(公告)号：US11022209B2
公开(公告)日：2021-06-01
申请号：US16278883
申请日：2019-02-19
Applicant: GE Avio S.r.l.
Inventor： Saypen Baraggia Au Yeung , Giulio Zagato
Abstract: A gear assembly including a first gear disposed at a centerline axis of the gear assembly; a second gear coupled to the first gear in adjacent radial arrangement; and a spraybar assembly disposed between a plurality of the second gear. The spraybar assembly defines an elongated neck extended between the plurality of second gear. A supply opening is defined through the elongated neck and the elongated neck defines a groove extended along a longitudinal direction.
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公开(公告)号：US12110903B2
公开(公告)日：2024-10-08
申请号：US18316656
申请日：2023-05-12
Applicant: GE Avio S.r.l.
Inventor： Paolo Altamura , Giulio Zagato
CPC classification number: F04D29/323 , B64C11/32 , F05D2220/32 , F05D2260/74 , F05D2260/79
Abstract: A gas turbine engine includes a turbomachine comprising a compressor section, a combustion section, and a turbine section arranged in serial flow order; a fan defining a fan axis and comprising a plurality of fan blades rotatable about the fan axis; and a pitch change mechanism operable with the plurality of fan blades to control a pitch of the plurality of fan blades. The pitch change mechanism imparts a torque to each fan blade of the plurality of fan blades via first and second forces imparted in opposite directions to each fan blade of the plurality of fan blades.
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公开(公告)号：US09103413B2
公开(公告)日：2015-08-11
申请号：US14356129
申请日：2012-11-02
Applicant: GE AVIO S.R.L.
Inventor： Edoardo Curti , Michele Gravina , Giulio Zagato , Luca Ronchiato , Elio Perona , Paolo Altamura
CPC classification number: F16H1/28 , F02C7/36 , F05D2260/40311 , F16H1/2827 , F16H2001/289 , Y02T50/671
Abstract: An epicyclic gearing has a plurality of planet gears arranged about a transmission axis so as to form two arrays symmetrical with respect to a plane orthogonal to the transmission axis; the gearing has a body which, on one side, is adapted to be connected to a rotating member and, on the other side, is coupled to a ring; the ring has a plurality of relatively thin plate sectors and a plurality of pins, which extend in cantilever fashion and in opposite directions from the plate sectors and each support a respective planet gear; coupling between the aforesaid body and the ring defines at least one degree of freedom in rotation about a radial axis to allow a relative movement under load between the two components.
Abstract translation: 行星齿轮传动装置具有围绕传动轴布置的多个行星齿轮，以形成相对于与传动轴正交的平面对称的两个阵列; 传动装置具有一体，其一侧适于连接到旋转部件，另一侧与环相连; 环具有多个相对较薄的板扇区和多个销，其以悬臂方式延伸并且在与板扇区相反的方向上延伸，并且每个支撑相应的行星齿轮; 上述主体和环之间的联接限定了围绕径向轴线的至少一个旋转自由度，以允许两个部件之间的负载下的相对运动。
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Patent Agency Ranking
公开(公告)号：US20240151240A1
公开(公告)日：2024-05-09
申请号：US18316656
申请日：2023-05-12
Applicant: GE Avio S.r.l.
Inventor： Paolo Altamura , Giulio Zagato
CPC classification number: F04D29/323 , B64C11/32 , F05D2220/32 , F05D2260/74 , F05D2260/79
Abstract: A gas turbine engine includes a turbomachine comprising a compressor section, a combustion section, and a turbine section arranged in serial flow order; a fan defining a fan axis and comprising a plurality of fan blades rotatable about the fan axis; and a pitch change mechanism operable with the plurality of fan blades to control a pitch of the plurality of fan blades. The pitch change mechanism imparts a torque to each fan blade of the plurality of fan blades via first and second forces imparted in opposite directions to each fan blade of the plurality of fan blades.
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公开(公告)号：US20240060559A1
公开(公告)日：2024-02-22
申请号：US18166605
申请日：2023-02-09
Applicant: GE Avio S.r.l.
Inventor： Giulio Zagato , Leonardo Coviello , Francesco Santacroce , Cristiano Consales , Paolo Altamura
CPC classification number: F16H57/0486 , F16H57/042 , F02C7/36 , F05D2260/40311
Abstract: A planetary gear system includes a carrier including a first side having a first oil manifold opening therethrough, and a second side having a second oil manifold opening therethrough, a first oil manifold and a second oil manifold. The first oil manifold has a first flange portion floatingly engaging with the first oil manifold opening, and a second flange portion engaging with the second oil manifold opening of the carrier, the second flange portion including a first oil manifold mounting flange. The second oil manifold has a second oil manifold flange portion engaging with the second oil manifold opening of the carrier, and including a second oil manifold mounting flange. At least one connecting member connects the first oil manifold mounting flange and the second oil manifold mounting flange so as to mount the first oil manifold and the second oil manifold to the carrier.
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公开(公告)号：US20170254407A1
公开(公告)日：2017-09-07
申请号：US15501067
申请日：2015-08-03
Applicant: GE AVIO S.r.l.
Inventor： Lorenzo Cipolla , Giulio Zagato , Stefano Zecchi
CPC classification number: F16H57/0423 , F16H1/28 , F16H57/0486
Abstract: In a mechanical gear transmission, a leaked lubricant liquid, used to lubricate an external ring gear meshing with at least one internal gear wheel, is collected and reintroduced in the system by means of a manifold having a first concave portion, which has a concavity facing towards the external ring gear, so as to to house a mass of liquid moved outwards as a result of a centrifugal effect, and at least a second concave portion, which is designed to receive the leaked liquid and has a concavity facing towards the first concave portion; channelling walls being provided to channel the leaked liquid towards one or the other concave portion.
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公开(公告)号：US12234907B2
公开(公告)日：2025-02-25
申请号：US18166605
申请日：2023-02-09
Applicant: GE Avio S.r.l.
Inventor： Giulio Zagato , Leonardo Coviello , Francesco Santacroce , Cristiano Consales , Paolo Altamura
Abstract: A planetary gear system includes a carrier including a first side having a first oil manifold opening therethrough, and a second side having a second oil manifold opening therethrough, a first oil manifold and a second oil manifold. The first oil manifold has a first flange portion floatingly engaging with the first oil manifold opening, and a second flange portion engaging with the second oil manifold opening of the carrier, the second flange portion including a first oil manifold mounting flange. The second oil manifold has a second oil manifold flange portion engaging with the second oil manifold opening of the carrier, and including a second oil manifold mounting flange. At least one connecting member connects the first oil manifold mounting flange and the second oil manifold mounting flange so as to mount the first oil manifold and the second oil manifold to the carrier.
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公开(公告)号：US10208849B2
公开(公告)日：2019-02-19
申请号：US15501067
申请日：2015-08-03
Applicant: GE AVIO S.r.l.
Inventor： Lorenzo Cipolla , Giulio Zagato , Stefano Zecchi
Abstract: In a mechanical gear transmission, a leaked lubricant liquid, used to lubricate an external ring gear meshing with at least one internal gear wheel, is collected and reintroduced in the system by means of a manifold having a first concave portion, which has a concavity facing towards the external ring gear, so as to house a mass of liquid moved outwards as a result of a centrifugal effect, and at least a second concave portion, which is designed to receive the leaked liquid and has a concavity facing towards the first concave portion; channelling walls being provided to channel the leaked liquid towards one or the other concave portion.
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