公开(公告)号：US12031448B2

公开(公告)日：2024-07-09

申请号：US18549794

申请日：2022-03-08

申请人： SAFRAN AIRCRAFT ENGINES

发明人： Paul Ghislain Albert Levisse ,  Emmanuel Fabrice Marie Baret ,  Julien Fabien Patrick Becoulet ,  Alexandre Jean-Marie Tan-Kim

IPC分类号： F01D25/16

CPC分类号： F01D25/162 ,  F05D2220/323

摘要： A device for centering and guiding a shaft of an aircraft turbine engines. The device includes an outer ring of a rolling bearing, the ring extending about a main axis and having orifices arranged around the axis axis; an annular bearing support extending about the main axis and at least partially about the ring, the support having orifices and openings arranged about the axis; and a series of studs for linking the ring to the support, the studs being distributed about the main axis and having elongation axes substantially parallel to the main axis, the body of each of the studs passing through one of the openings. Some of the studs, have bodies that pass with a first positive clearance and a second virtually zero clearance through the first openings, the first and second clearances being configured so that the device has different displacement amplitudes.

公开(公告)号：US12055097B2

公开(公告)日：2024-08-06

申请号：US18549796

申请日：2022-03-08

申请人： SAFRAN AIRCRAFT ENGINES

发明人： Paul Ghislain Albert Levisse ,  Emmanuel Fabrice Marie Baret ,  Julien Fabien Patrick Becoulet ,  Alexandre Jean-Marie Tan-Kim

IPC分类号： F02C7/06 ,  F01D25/16

CPC分类号： F02C7/06 ,  F01D25/162 ,  F05D2240/50 ,  F05D2260/96

摘要： A device for centering and guiding a shaft of an aircraft turbine engine, the device including an outer ring of a rolling bearing, the ring extending about an axis; an annular bearing support extending about the axis and at least partially about the ring; at least one series of connecting elements for linking the ring to the support, the connecting elements being interposed between an inner cylindrical rim of the ring and an outer cylindrical rim of the support that extends about the inner rim, and each having a first radially outer end for linking to the outer cylindrical rim and a second radially inner end for linking to the inner cylindrical rim, the ring, the support and the connecting elements being integrally formed, the connecting elements being enclosed in an annular housing that is radially delimited by the rims and laterally enclosed by an annular web.

公开(公告)号：US11852079B2

公开(公告)日：2023-12-26

申请号：US17624113

申请日：2020-06-16

申请人： SAFRAN AIRCRAFT ENGINES

发明人： Emmanuel Fabrice Marie Baret ,  Julien Fabien Patrick Becoulet ,  Franck Emmanuel Bosco ,  Michel Gilbert Roland Brault ,  Paul Ghislain Albert Levisse

IPC分类号： F02C7/32 ,  F01D25/20 ,  F02C7/06 ,  F02C7/36

CPC分类号： F02C7/32 ,  F01D25/20 ,  F02C7/06 ,  F02C7/36 ,  F05D2220/323 ,  F05D2260/40 ,  F05D2260/98

摘要： A pump that can be a gear pump that drives a rotating body of an aircraft turbine engine such as a fan shaft, is set in rotation always in the same direction, by virtue of a transmission including an oblique double gear formed by a toothed wheel on the same side as the rotating body and meshing with two pinions connected to a shaft driving the pump through free-wheels with identical driving directions, whereas the pinions have opposite directions of rotation.

公开(公告)号：US11643975B2

公开(公告)日：2023-05-09

申请号：US17603655

申请日：2020-04-17

申请人： SAFRAN AIRCRAFT ENGINES

发明人： Julien Fabien Patrick Becoulet ,  Emmanuel Fabrice Marie Baret ,  Franck Emmanuel Bosco ,  Michel Gilbert Roland Brault ,  Paul Ghislain Albert Levisse

IPC分类号： F16H57/04 ,  F02C7/36 ,  F01D25/18 ,  F02C7/06 ,  F16H57/08

CPC分类号： F02C7/36 ,  F01D25/18 ,  F02C7/06 ,  F16H57/0479 ,  F16H57/0486 ,  F16H57/082 ,  F05D2220/323 ,  F05D2240/60 ,  F05D2260/40311 ,  F05D2260/98

摘要： A speed reducer, particularly of an aircraft, includes a central sun gear mounted to rotate with a drive shaft about a rotation axis X, an annular ring gear coaxial with the X axis, and a plurality of planet gears arranged about the X axis and mounted to be movable on a planet carrier. The planet gears engages the sun gear and the annular ring gear, which extends around the planet gears. The speed reducer further includes a lubricant recovery device having a pipe for recovering lubricant discharged from the reducer by centrifuging. The recovery device has scoops mounted to pivot about a pivot axis P on a movable member of the speed reducer that rotates about the X axis between a deployed state and a rest state.