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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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公开(公告)号：US11585229B2
公开(公告)日：2023-02-21
申请号：US16982171
申请日：2019-03-19
发明人： Laurent Jablonski , François Jean Comin , Philippe Gérard Edmond Joly , Jean-Marc Claude Perrollaz , Anthony Lafitte , Rémi Roland Robert Mercier
摘要： The invention relates to a bladed disk (1) of a fan, comprising: a hub (10) comprising an outer radial platform (13) designed so as to define an inner gas flow stream in the turbomachine, a plurality of blades (20) comprising a root (23) connected to the platform (13), a leading edge (21) and a trailing edge (22), a groove formed in the platform (13) around part of the root (23) of each blade (20) in an area adjacent to the leading edge (21) and/or the trailing edge (22), and a joint (30) placed in the groove (15) in such a way that it extends in the extension of the radially outer face (14) of the platform (13) in order to ensure a continuity of the inner flow stream.
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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：US10526067B2
公开(公告)日：2020-01-07
申请号：US15523295
申请日：2015-10-30
发明人： Sebastien Emile Philippe Tajan , Charles-Henri Michel Marie Derrez , Anthony Lafitte , Cyril Roger Yves Le Pecheur
摘要： The invention relates to a propeller ring (10) of a turbomachine (1), with variable-pitch blades (P), the propeller ring (10) comprising a substantially coaxial annular body (11) with a main axis (A) and a plurality of radial housings (12) uniformly distributed around the main axis (A), each radial housing (12) being designed to receive a bearing (13) for a root (14) of a blade (P) so as to allow the variable pitch of the blade (P), the radial housings (12) having a substantially ovoid cross-section in a plane (T) tangential to the annular body (11).
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