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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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公开(公告)号：US10458535B2
公开(公告)日：2019-10-29
申请号：US15492040
申请日：2017-04-20
Applicant: GE Avio S.r.l.
Inventor： Michele Gravina , Federico Dellavalle , Elio Perona
Abstract: An oil transfer unit has a rotating part, a stationary part provided with an oil mouth, and a floating part having a support body coupled to the stationary part; the floating part has an annular pad, that is distinct from the body and is provided with a cylindrical surface fitted onto an outer cylindrical surface of the rotating part in a non-contact configuration, with an annular groove provided between the pad and the rotating part to put the oil mouth into communication with an inner chamber of the rotating part; both sides of the groove are sealed by a hydrostatic seal between the cylindrical surfaces; an angular retaining constraint is provided to retain angularly the pad with respect to the body; at least one element is breakable or plastically deformable to release the angular constraint when the torque transferred to the body, in use, exceeds a defined threshold.
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公开(公告)号：US20190178751A1
公开(公告)日：2019-06-13
申请号：US16308100
申请日：2017-06-02
Applicant: GE AVIO S.R.L.
Inventor： Michele Gravina , Elio Perona , Guido Rocca
IPC: G01M13/021 , G01N3/04 , G01N3/34
Abstract: A test apparatus for testing a gear having a central axis has a force application column moveable along a force application axis (F) so as to apply a force onto the flank of a tooth of the gear, and a clamping device having a clamping axis (A) orthogonal to and spaced apart from the force application axis. The clamping device secures the gear in such a manner that the central axis of the gear coincides with the clamping axis (A). The column has a first and a second end and one intermediate portion, which is elastically deformable so as to allow for a displacement of the second end in relation to the first end along a displacement direction (D1) orthogonal to the clamping axis (A) and to the force application axis (F).
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公开(公告)号：US20140309078A1
公开(公告)日：2014-10-16
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
IPC: F16H1/28
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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