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公开(公告)号:US20210381388A1
公开(公告)日:2021-12-09
申请号:US17283365
申请日:2019-10-07
发明人: Sébastien Emile Philippe Tajan , Régis Eugène Henri Servant , Gilles Alain Marie Charier , Emmanuel Pierre Dimitri Patsouris
摘要: A turbine engine including: a rotor having at least one variable-pitch blade which is guided to rotate on bearings relative to a fixed structure; a system for controlling the pitch of the at least one blade, the control system being rigidly secured to the rotor and including a first actuator driven by energy, and the control system further being disposed axially upstream of the bearings; a device for transferring the energy, which is disposed axially between the bearings, the transfer device including a stationary element and a mobile element; wherein the rotor is annular and delimits an inner space which is open towards the upstream side and inside of which the control system is disposed.
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公开(公告)号:US10648406B2
公开(公告)日:2020-05-12
申请号:US15683394
申请日:2017-08-22
发明人: Sébastien Emile Philippe Tajan , Eddy Keomorakott Souryavongsa , Regis Eugéne Henri Servant , Adrien Jacques Philippe Fabre , Stephane Ibarzo
摘要: A controller for controlling a system for changing the pitch of blades of a turbine engine propeller, the controller includes a fixed member (28) and a member (29) which is movable in translation along a longitudinal axis (X) relative to the fixed member (28), and an anti-rotation device (33) configured so as to prevent the rotation of the movable member (29) relative to the fixed member (28) about the axis (X). The anti-rotation device includes a longitudinal structural crossmember (35) which is mounted by a first and a second end (36, 37) on the fixed member, and support and guide unit (57) integrally in translation the movable member along the axis (X), the crossmember extending radially outside the movable member and the fixed member relative to a radial axis (Y) which is perpendicular to the axis (X) and being guided through the support and guide unit.
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公开(公告)号:US20200172228A1
公开(公告)日:2020-06-04
申请号:US16327288
申请日:2017-08-16
发明人: Régis Eugène Henri Servant , Anthony Lafitte , Eddy Keomorakott Souryavongsa , Sébastien Emile Philippe Tajan , Arnaud Martin
摘要: A system for changing the pitch of blades of at least one turbomachine rotor is provided. The system generally includes a control means acting on a connecting mechanism connected to the blades of the rotor and having a body mobile in translation along a longitudinal axis with respect to a fixed body, load-transfer bearing mounted on the mobile body cooperating with the connecting mechanism, and means for lubricating the bearing having a lubricant duct and extending radially above the fixed and mobile bodies. The duct generally includes first and second telescopic tubular parts that slide coaxially with respect to one another, the first part connected to the fixed body and the second part connected to the mobile body, and means for spraying lubricant into the bearing mounted on the mobile body and lubricant supply conduit mounted on the mobile body to connect the duct to the spraying means.
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公开(公告)号:US20220003123A1
公开(公告)日:2022-01-06
申请号:US17283341
申请日:2019-10-07
发明人: Sébastien Emile Philippe Tajan , Régis Eugène Henri Servant , Gilles Alain Marie Charier , Emmanuel Pierre Dimitri Patsouris
摘要: A turbine engine including: a rotor supporting a blade and guided by means of bearings; a control system for controlling the blade, which is solidly connected to the rotor and which includes an actuator driven by energy, the control system being disposed axially upstream of the bearings; and a device for transferring the energy, disposed axially between the bearings and including a stationary member and a moving member. The rotor includes a support ring supporting the blade and a shaft having a frustoconical portion and a cylindrical portion on which the bearings and the moving member are mounted, the frustoconical portion extending about the cylindrical portion.
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公开(公告)号:US10669010B2
公开(公告)日:2020-06-02
申请号:US15569639
申请日:2016-04-25
发明人: Sébastien Emile Philippe Tajan , Adrien Jacques Philippe Fabre , Adrien Louis Nicolas Laurenceau , Jonathan Evert Vlastuin , Laurence Francine Vion
摘要: The invention relates to an unducted-fan aircraft engine comprising a generally cylindrical nacelle through which a primary jet flows, the nacelle bearing a fan rotor comprising variable-pitch vanes (33) located radially outside the nacelle in order to be traversed by a secondary jet (31) flowing longitudinally around the nacelle. The rotor comprises a hub bearing variable-pitch vane supports each carrying one vane (33), each vane (33) comprising a blade extending from a root that is used to removably attach same to a base of the associated support (34). Each base (36) is located radially outside the nacelle so that it is in the secondary jet, and each assembly formed by a base (36) and the vane root supported by the base (36) is surrounded and covered by a detachable aerodynamic cover (37).
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公开(公告)号:US10604235B2
公开(公告)日:2020-03-31
申请号:US15673322
申请日:2017-08-09
发明人: Sébastien Emile Philippe Tajan , Gilles Alain Marie Charier , Clément Cottet , Adrien Jacques Philippe Fabre , Christophe Marcel Lucien Perdrigeon
摘要: The invention relates to turbine engine module (1) including a case (9) rotating around a longitudinal axis (X) and carrying a propeller having a plurality of blades, a stationary case (15) comprising a cylindrical wall (16) extending between an inner wall (17) and an outer wall (18) of the rotating case (9), and a system (26) for changing the pitch of the blades (14) of the propeller. The wall (16) is connected downstream to a first frustoconical wall (42) and upstream to a second frustoconical wall (41), a first rolling bearing (19) being inserted respectively downstream directly between a radially outer face (21) of the inner wall (17) and a radially inner face (23) of the first frustoconical wall, and a second rolling bearing (19′) inserted downstream directly between the radially outer face (21) of the inner wall (17) and an inner face (43) of the second frustoconical wall (41).
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7.
公开(公告)号:US10766603B2
公开(公告)日:2020-09-08
申请号:US15673078
申请日:2017-08-09
发明人: Sébastien Emile Philippe Tajan , Régis Eugène Henri Servant , Dominique Gerhardt Mayhew , Eddy Keomorakott Souryavongsa , Xavier Bertrand Miqueu
摘要: A system changes the pitch of blades of a turbine engine propeller having a plurality of blades. The system includes a plurality of links, each link being connected to one of the propeller blades at a first interface, and a control means acting on the link and having a body movable in translation along a longitudinal axis. A load transfer module is arranged between the links and the control means and is connected to the links at a plurality of second interfaces. A first adjustment element is configured to adjust an axial position of the second interfaces along the axis to provide adjustment of the pitch of all of the blades simultaneously. A plurality of second adjustment elements are configured to adjust an axial distance between each first interface and the corresponding second interface to allow the pitch of each blade to be adjusted individually.
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公开(公告)号:US10549843B2
公开(公告)日:2020-02-04
申请号:US15672763
申请日:2017-08-09
发明人: Sébastien Emile Philippe Tajan , Adrien Jacques Philippe Fabre , Paul Antoine Foresto , Régis Eugène Henri Servant , Stéphane Ibarzo
IPC分类号: B64C11/38
摘要: A system is configured to change the pitch of blades of at least one turbine engine propeller provided with multiple blades. The system includes a control means acting on a connecting mechanism connected to the blades of the propeller. The control means includes a stationary body and a movable body translatable along a longitudinal axis (X) relative to the stationary body and defining two chambers. A fluid supply means is configured to be connected to a fluid supply source and to supply the chambers. The fluid supply means includes at least one channel. The channel is arranged and extends along an axis (Q) parallel to the longitudinal axis in an overthickness of a wall of the stationary body, the overthickness extending radially inside relative to the longitudinal axis.
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公开(公告)号:US10940938B2
公开(公告)日:2021-03-09
申请号:US16327288
申请日:2017-08-16
发明人: Régis Eugène Henri Servant , Anthony Lafitte , Eddy Keomorakott Souryavongsa , Sébastien Emile Philippe Tajan , Arnaud Martin
摘要: A system for changing the pitch of blades of at least one turbomachine rotor is provided. The system generally includes a control means acting on a connecting mechanism connected to the blades of the rotor and having a body mobile in translation along a longitudinal axis with respect to a fixed body, load-transfer bearing mounted on the mobile body cooperating with the connecting mechanism, and means for lubricating the bearing having a lubricant duct and extending radially above the fixed and mobile bodies. The duct generally includes first and second telescopic tubular parts that slide coaxially with respect to one another, the first part connected to the fixed body and the second part connected to the mobile body, and means for spraying lubricant into the bearing mounted on the mobile body and lubricant supply conduit mounted on the mobile body to connect the duct to the spraying means.
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10.
公开(公告)号:US20180043991A1
公开(公告)日:2018-02-15
申请号:US15672763
申请日:2017-08-09
发明人: Sébastien Emile Philippe Tajan , Adrien Jacques Philippe Fabre , Paul Antoine Foresto , Régis Eugène Henri Servant , Stéphane Ibarzo
IPC分类号: B64C11/38
CPC分类号: B64C11/38 , B64C11/30 , B64C11/306 , Y02T50/66
摘要: A system is configured to change the pitch of blades of at least one turbine engine propeller provided with multiple blades. The system includes a control means acting on a connecting mechanism connected to the blades of the propeller. The control means includes a stationary body and a movable body translatable along a longitudinal axis (X) relative to the stationary body and defining two chambers. A fluid supply means is configured to be connected to a fluid supply source and to supply the chambers. The fluid supply means includes at least one channel. The channel is arranged and extends along an axis (Q) parallel to the longitudinal axis in an overthickness of a wall of the stationary body, the overthickness extending radially inside relative to the longitudinal axis.
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