Patents by Inventor Cyril Roger Yves Le Pecheur
Cyril Roger Yves Le Pecheur has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10526067Abstract: 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).Type: GrantFiled: October 30, 2015Date of Patent: January 7, 2020Assignee: SAFRAN AIRCRAFT ENGINESInventors: Sebastien Emile Philippe Tajan, Charles-Henri Michel Marie Derrez, Anthony Lafitte, Cyril Roger Yves Le Pecheur
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Patent number: 10501168Abstract: The invention relates to a hub for an unducted propeller (14) having variable-pitch blades (18) of a turbine engine, comprising two parallel annular side walls (34) between which are arranged rings (36) which are distributed angularly in a regular manner around a longitudinal axis (A) of the hub, which are connected to the annular side walls (34), and which comprise compartments (26) receiving bearings (32) having radial axes (R) for guiding in rotation roots (30) of blades of said propeller, said rings (36) being connected in pairs by connection means (40) which are arranged between the annular side walls (34) and which comprise substantially radial reinforcing partitions (42, 44, 46), characterised in that at least some of said reinforcing partitions (42, 44, 46) are connected to said annular side walls (34).Type: GrantFiled: May 7, 2015Date of Patent: December 10, 2019Assignee: SAFRAN AIRCRAFT ENGINESInventors: Sebastien Emile Philippe Tajan, Charles-Henri Michel Marie Derrez, Caroline Adeline Herauville, Anthony Lafitte, Cyril Roger Yves Le Pecheur
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Patent number: 10378368Abstract: A propeller ring of a turbomachine including an annular body substantially coaxial to a principal axis and a plurality of radial housings uniformly distributed about the principal axis, each radial housing being configured to receive a root of a blade, the annular body being made of composite material including a fibrous reinforcement densified by a polymer matrix and further including a plurality of metallic inserts configured to each receive the root of a blade, said metallic inserts being anchored in the composite material of the annular body.Type: GrantFiled: October 30, 2015Date of Patent: August 13, 2019Assignee: SAFRAN AIRCRAFT ENGINESInventors: Sebastien Emile Philippe Tajan, Charles-Henri Michel Marie Derrez, Anthony Lafitte, Cyril Roger Yves Le Pecheur
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Patent number: 10118710Abstract: An unducted fan for an aircraft turbine engine, including a propeller having a hub and an annular array of blades extending substantially radially outwards from the hub, is provided. The hub includes an annular array of cowls, each of which is mounted between the radially inner ends of the blades and suitable for being fixed to an upstream collar and to a downstream collar of the hub. At least one cowl includes, at a circumferential end, a joint edge which is contiguous with a complementary joint edge of an adjacent cowl. The at least one cowl and at least one of the upstream and downstream collars are configured so that the cowl can be mounted and dismounted by a movement including a pivoting about an initial pivot axis circumferentially separated from the at least one joint edge.Type: GrantFiled: February 23, 2016Date of Patent: November 6, 2018Assignees: SAFRAN AIRCRAFT ENGINES, AIRCELLEInventors: Charles-Henri Michel Marie Derrez, Adrien Jacques Philippe Fabre, Sebastien Marcelino Juste, Cyril Roger Yves Le Pecheur, Michel Pierre Rognant
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Publication number: 20170313403Abstract: 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).Type: ApplicationFiled: October 30, 2015Publication date: November 2, 2017Applicant: Safran Aircraft EnginesInventors: Sebastien Emile Philippe TAJAN, Charles-Henri Michel Marie DERREZ, Anthony LAFITTE, Cyril Roger Yves LE PECHEUR
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Publication number: 20170081018Abstract: The invention relates to a hub for an unducted propeller (14) having variable-pitch blades (18) of a turbine engine, comprising two parallel annular side walls (34) between which are arranged rings (36) which are distributed angularly in a regular manner around a longitudinal axis (A) of the hub, which are connected to the annular side walls (34), and which comprise compartments (26) receiving bearings (32) having radial axes (R) for guiding in rotation roots (30) of blades of said propeller, said rings (36) being connected in pairs by connection means (40) which are arranged between the annular side walls (34) and which comprise substantially radial reinforcing partitions (42, 44, 46), characterised in that at least some of said reinforcing partitions (42, 44, 46) are connected to said annular side walls (34).Type: ApplicationFiled: May 7, 2015Publication date: March 23, 2017Inventors: Sebastien Emile Philippe TAJAN, Charles-Henri Michel Marie DERREZ, Caroline Adeline HERAUVILLE, Anthony LAFITTE, Cyril Roger Yves LE PECHEUR
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Publication number: 20160244175Abstract: Unducted fan for an aircraft turbine engine, comprising at least one propeller comprising a hub and an annular array of blades extending substantially radially outwards from said hub, the hub comprising an annular array of cowls which are mounted between the radially inner ends of the blades and suitable for being fixed to an upstream collar and to a downstream collar of the hub, wherein at least one cowl comprises, at a circumferential end, at least one joint edge which is contiguous with a complementary joint edge of an adjacent cowl, and wherein said at least one cowl and at least one of said upstream and downstream collars are configured so that the cowl can be mounted and dismounted by a movement including, at least at the start thereof, a pivoting about an initial pivot axis which is circumferentially separated from said at least one joint edge in the direction of a centre of the cowl, and so that, during said pivoting, said at least one joint edge moves radially away from said complementary joint edgeType: ApplicationFiled: February 23, 2016Publication date: August 25, 2016Applicants: SNECMA, AIRCELLEInventors: Charles-Henri Michel Marie DERREZ, Adrien Jacques Philippe FABRE, Sebastien Marcelino JUSTE, Cyril Roger Yves LE PECHEUR, Michel Pierre ROGNANT
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Publication number: 20160123162Abstract: A propeller ring of a turbomachine including an annular body substantially coaxial to a principal axis and a plurality of radial housings uniformly distributed about the principal axis, each radial housing being configured to receive a root of a blade, the annular body being made of composite material including a fibrous reinforcement densified by a polymer matrix and further including a plurality of metallic inserts configured to each receive the root of a blade, said metallic inserts being anchored in the composite material of the annular body.Type: ApplicationFiled: October 30, 2015Publication date: May 5, 2016Applicant: SNECMAInventors: Sebastien Emile Philippe TAJAN, Charles-Henri Michel Marie Derrez, Anthony Lafitte, Cyril Roger Yves Le Pecheur