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公开(公告)号：US11933229B2
公开(公告)日：2024-03-19
申请号：US18165173
申请日：2023-02-06
CPC分类号： F02C7/36 , F16H57/082 , F05D2220/323 , F05D2250/75 , F05D2260/40311
摘要： Speed reduction gear for an aircraft turbomachine. The reduction gear has a main axis and planet carrier having a cage and a cage carrier, a sun gear located in the cage and centred on the main axis, an annular row of planet gears arranged around the main axis and the sun gear and meshed with the sun gear, and a ring gear arranged around the axis and the cage and meshed with the planet gears. The cage and the cage carrier are connected to each other by connections whose bending flexibility is optimised.
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公开(公告)号：US12123479B2
公开(公告)日：2024-10-22
申请号：US18461740
申请日：2023-09-06
发明人： Guillaume Pierre Mouly , Guillaume Julien Beck , Patrice Julien Ptaszynski , Jean-Pierre Serey , Adrien Louis Simon
摘要： A planet carrier for a speed reducer of an aircraft turbomachine, the planet carrier including a cage carrier and a cage. The cage can have two parts: a first part having a wall and bridges, these bridges projecting axially from a face of this wall and including first axial ends connected to this face and second free axial ends; and a second part having another of the walls, this other wall including a face to which the free ends of the bridges are applied. The two parts of the cage can be attached together by screws.
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公开(公告)号：US10989119B2
公开(公告)日：2021-04-27
申请号：US16689743
申请日：2019-11-20
摘要： A planet-carrier for a mechanical reduction gear of a turbine engine, in particular of an aircraft, this planet-carrier having a rotation axis and comprising axes for guiding the planet gears that are arranged around and parallel with the rotation axis, each guiding axis having a general tubular shape of which the outer periphery comprises only two coaxial and adjacent cylindrical tracks of the respective rollers of two annular rows of rollers, wherein each axis has an inner periphery that is substantially bi-conical and comprising two coaxial and adjacent frustoconical surfaces, these inner frustoconical surfaces converging towards one another and extending respectively radially inside the tracks.
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公开(公告)号：US20200165979A1
公开(公告)日：2020-05-28
申请号：US16689743
申请日：2019-11-20
摘要： A planet-carrier for a mechanical reduction gear of a turbine engine, in particular of an aircraft, this planet-carrier having a rotation axis and comprising axes for guiding the planet gears that are arranged around and parallel with the rotation axis, each guiding axis having a general tubular shape of which the outer periphery comprises only two coaxial and adjacent cylindrical tracks of the respective rollers of two annular rows of rollers, wherein each axis has an inner periphery that is substantially bi-conical and comprising two coaxial and adjacent frustoconical surfaces, these inner frustoconical surfaces converging towards one another and extending respectively radially inside the tracks.
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公开(公告)号：US10816088B2
公开(公告)日：2020-10-27
申请号：US16347167
申请日：2017-10-31
发明人： Maxime Lefebvre , Jean-Charles Michel Pierre Di Giovanni , Jordane Emile André Peltier , Patrice Julien Ptaszynski
摘要： A planet carrier for a speed-reducing unit with a planetary gear set is provided. The planet carrier generally includes a torque transmission part having a longitudinal axis and an annular cage extending about the axis and connected to one longitudinal end of the part. The cage may include two sides extending radially relative to the axis and connected by bridges, and seats extending axially between the flanks and configured to support planetary gears rotatably mounted about the seats. The curved members may include at least two corresponding bars each inclined relative to a longitudinal plane passing both through the axis and substantially through the corresponding bar.
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公开(公告)号：US20200072340A1
公开(公告)日：2020-03-05
申请号：US16347167
申请日：2017-10-31
发明人： Maxime Lefebvre , Jean-Charles Michel Pierre Di Giovanni , Jordane Emile André Peltier , Patrice Julien Ptaszynski
摘要： A planet carrier for a speed-reducing unit with a planetary gear set is provided. The planet carrier generally includes a torque transmission part having a longitudinal axis and an annular cage extending about the axis and connected to one longitudinal end of the part. The cage may include two sides extending radially relative to the axis and connected by bridges, and seats extending axially between the flanks and configured to support planetary gears rotatably mounted about the seats. The curved members may include at least two corresponding bars each inclined relative to a longitudinal plane passing both through the axis and substantially through the corresponding bar.
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