Patents by Inventor Christophe Jacquemard
Christophe Jacquemard 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: 10036262Abstract: The present invention relates to a rotor for a turbomotor impeller, with variable-pitch blades, comprising blade roots capable of rotating in a blade supporting structure and a device for feathering the blades. Said feathering device comprises at least one flyweight secured to a crank connected by a gear set to at least one of said blade roots.Type: GrantFiled: August 14, 2014Date of Patent: July 31, 2018Assignee: SNECMAInventors: Sébastien Emile Philippe Tajan, Adrien Jacques Philippe Fabre, Christophe Jacquemard
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Patent number: 9938000Abstract: A pivot for an air propeller blade, the pivot including a rotary support for mounting radially on a propeller hub while being suitable for pivoting about a pivot axis; and a blade support including a housing for receiving a blade root and at least one arm extending laterally relative to the pivot axis and carrying a flyweight forming a counterweight; the arm and its flyweight presenting the general geometrical shape of a spherical cap.Type: GrantFiled: June 12, 2014Date of Patent: April 10, 2018Assignee: SNECMAInventors: Sebastien Tajan, Adrien Jacques Philippe Fabre, Christophe Jacquemard, Adrien Laurenceau
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Patent number: 9914527Abstract: The invention relates to the field of aerial propellers, in particular the field of variable-pitch propellers, specifically for unducted fans. More specifically, the invention relates to a pivot (15) for a blade (14) of a propeller (3a, 3b), the pivot including at least a proximal portion (15a) made of metal and suitable for being retained in a radial orifice of a propeller hub, while being capable of turning in said orifice about a longitudinal axis (Z) of the pivot (15), and a distal portion (15b) including a receptacle (20) suitable for retaining a blade root, and at least one arm (17) of organic matrix composite material extending laterally relative to said longitudinal axis (Z) and supporting a flyweight (16).Type: GrantFiled: March 9, 2017Date of Patent: March 13, 2018Assignee: SNECMAInventors: Sebastien Tajan, Adrien Jacques Philippe Fabre, Christophe Jacquemard, Adrien Laurenceau, Romain Boudier
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Patent number: 9896189Abstract: The invention relates to the field of aerial propellers, in particular the field of variable-pitch propellers, specifically for unducted fans. More specifically, the invention relates to a pivot (15) for a blade (14) of a propeller (3a, 3b), the pivot including at least a proximal portion (15a) made of metal and suitable for being retained in a radial orifice of a propeller hub, while being capable of turning in said orifice about a longitudinal axis (Z) of the pivot (15), and a distal portion (15b) including a receptacle (20) suitable for retaining a blade root, and at least one arm (17) of organic matrix composite material extending laterally relative to said longitudinal axis (Z) and supporting a flyweight (16).Type: GrantFiled: May 16, 2014Date of Patent: February 20, 2018Assignee: SNECMAInventors: Sebastien Tajan, Adrien Jacques Philippe Fabre, Christophe Jacquemard, Adrien Laurenceau, Romain Boudier
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Patent number: 9790794Abstract: The main purpose of the invention is a propeller (32) for a turbomachine (1) comprising a plurality of blades (48) and a blade support ring (47) fitted with housings (50) each of which holding a pivot (52) supporting the root (58) of one of said blades (48), characterized in that at least one of the pivots (52) is associated with at least one dynamic scoop (100), capable of moving between distinct positions, an open position in which a cooling airflow (F) can be captured, and a closed position as a function of the orientation of the corresponding blade.Type: GrantFiled: October 8, 2013Date of Patent: October 17, 2017Assignee: SNECMAInventors: Sarah Chartier, Adrien Jacques Philippe Fabre, Dominik Igel, Christophe Jacquemard, Sébastien Tajan
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Patent number: 9765624Abstract: The main aim of the invention is a propeller (32) for a turboengine (1) comprising a plurality of blades (48) and a blade support ring (47) provided with housings (50), each receiving a pivot (52) bearing the foot (58) of one of said blades (48), characterized in that at least one of the pivots (52) is equipped with at least one counterweight system (90, 91) provided with at least one inner channel (93, 96) for airflow ventilation discharge (F1, F3) for capturing and guiding said airflow directly in contact with the blade foot (58) borne by said at least one of the pivots (52).Type: GrantFiled: October 8, 2013Date of Patent: September 19, 2017Assignee: SNECMAInventors: Sebastien Tajan, Christophe Jacquemard
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Publication number: 20170174322Abstract: The invention relates to the field of aerial propellers, in particular the field of variable-pitch propellers, specifically for unducted fans. More specifically, the invention relates to a pivot (15) for a blade (14) of a propeller (3a, 3b), the pivot including at least a proximal portion (15a) made of metal and suitable for being retained in a radial orifice of a propeller hub, while being capable of turning in said orifice about a longitudinal axis (Z) of the pivot (15), and a distal portion (15b) including a receptacle (20) suitable for retaining a blade root, and at least one arm (17) of organic matrix composite material extending laterally relative to said longitudinal axis (Z) and supporting a flyweight (16).Type: ApplicationFiled: March 9, 2017Publication date: June 22, 2017Applicant: SNECMAInventors: Sebastien TAJAN, Adrien Jacques Philippe FABRE, Christophe JACQUEMARD, Adrien LAURENCEAU, Romain BOUDIER
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Patent number: 9677408Abstract: A control system includes a power actuator coaxial with the axis of rotation of the propeller, and a transmission device connecting the power actuator to pivots, of the blades to be controlled, arranged substantially radially with respect to the axis of rotation. The actuator is a rotary jack whose mobile part rotates about the axis of rotation and is connected to the transmission device by a mobile mechanical connection which transforms the rotation imparted by the mobile part of the jack about the axis of rotation into a rotation of the blades about the axes of the pivots which are perpendicular to the axis of rotation.Type: GrantFiled: April 29, 2014Date of Patent: June 13, 2017Assignee: SNECMAInventors: Sébastien Tajan, Christophe Jacquemard, Adrien Fabre
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Patent number: 9453414Abstract: A cleat for a blade foot of a blade of a propeller of a turboengine is provided. The cleat allows the discharge of ventilation airflow of the blade foot.Type: GrantFiled: October 2, 2013Date of Patent: September 27, 2016Assignee: SNECMAInventors: Sebastien Tajan, Christophe Jacquemard
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Publication number: 20160186584Abstract: The present invention relates to a rotor for a turbomotor impeller, with variable-pitch blades, comprising blade roots capable of rotating in a blade supporting structure and a device for feathering the blades. Said feathering device comprises at least one flyweight secured to a crank connected by a gear set to at least one of said blade roots.Type: ApplicationFiled: August 14, 2014Publication date: June 30, 2016Applicant: SNECMAInventors: Sébastien Emile Philippe Tajan, Adrien Jacques Philippe Fabre, Christophe Jacquemard
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Publication number: 20160121999Abstract: A pivot for an air propeller blade, the pivot including a rotary support for mounting radially on a propeller hub while being suitable for pivoting about a pivot axis; and a blade support including a housing for receiving a blade root and at least one arm extending laterally relative to the pivot axis and carrying a flyweight forming a counterweight; the arm and its flyweight presenting the general geometrical shape of a spherical cap.Type: ApplicationFiled: June 12, 2014Publication date: May 5, 2016Applicant: SNECMAInventors: Sebastien Tajan, Adrien Jaccques Philippe Fabre, Christophe Jacquemard, Adrien Laurenceau
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Publication number: 20150260045Abstract: The main purpose of the invention is a propeller (32) for a turbomachine (1) comprising a plurality of blades (48) and a blade support ring (47) fitted with housings (50) each of which holding a pivot (52) supporting the root (58) of one of said blades (48), characterised in that at least one of the pivots (52) is associated with at least one dynamic scoop (100), capable of moving between distinct positions, an open position in which a cooling airflow (F) can be captured, and a closed position as a function of the orientation of the corresponding blade.Type: ApplicationFiled: October 8, 2013Publication date: September 17, 2015Applicant: SNECMAInventors: Sarah Chartier, Adrien Jacques, Philippe Fabre, Dominik Igel, Christophe Jacquemard, Sébastien Tajan
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Publication number: 20150030450Abstract: The invention relates to a control device (1) of the pitch of blades of a rotor of a propeller, comprising: a radial shaft (6), a pivot (8) connected to the blade, the rotation of the radial shaft (6) driving the rotation of the pivot (8) for the modification of the pitch of the blade, characterised in that it comprises: an insert (12) fixed rigidly to the pivot (8) so as to block their relative displacement, the radial shaft (6) being configured to drive in rotation the insert (12), at least one peg (24) passing through the insert (12) and the pivot (8) for transmission of the rotation of the insert (12) to the pivot (8), a heat insulation element (15) arranged between the insert (12) and the pivot (8), whereof the thermal conductivity is less than the thermal conductivity of the pivot (8) and of the radial shaft (6). The invention also relates to a propeller comprising this device.Type: ApplicationFiled: July 24, 2014Publication date: January 29, 2015Applicant: SNECMAInventors: Adrien FABRE, Sebastien Tajan, Christophe Jacquemard, Sarah Chartier
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Publication number: 20140341739Abstract: The invention relates to the field of aerial propellers, in particular the field of variable-pitch propellers, specifically for unducted fans. More specifically, the invention relates to a pivot (15) for a blade (14) of a propeller (3a, 3b), the pivot including at least a proximal portion (15a) made of metal and suitable for being retained in a radial orifice of a propeller hub, while being capable of turning in said orifice about a longitudinal axis (Z) of the pivot (15), and a distal portion (15b) including a receptacle (20) suitable for retaining a blade root, and at least one arm (17) of organic matrix composite material extending laterally relative to said longitudinal axis (Z) and supporting a flyweight (16).Type: ApplicationFiled: May 16, 2014Publication date: November 20, 2014Applicant: SNECMAInventors: Sebastien TAJAN, Adrien Jacques Philippe Fabre, Christophe Jacquemard, Adrien Laurenceau, Romain Boudier
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Publication number: 20140322016Abstract: The control system (23) comprises a power actuator (24) coaxial with the axis of rotation (A) of the propeller, and a transmission device (25) connecting the power actuator to pivots (15), of the blades to be controlled (16), arranged substantially radially with respect to said axis of rotation. Advantageously, said actuator (24) is a rotary jack whose mobile part (28) rotates about said axis of rotation and is connected to the transmission device (25) by means of a mobile mechanical connection (34) which transforms the rotation imparted by the mobile part (28) of the jack about said axis of rotation into a rotation of the blades (16) about the axes (B) of the pivots (15) which are perpendicular to the axis of rotation (A).Type: ApplicationFiled: April 29, 2014Publication date: October 30, 2014Applicant: SNECMAInventors: Sébastien TAJAN, Christophe JACQUEMARD, Adrien FABRE
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Publication number: 20140099206Abstract: The main aim of the invention is a propeller (32) for a turboengine (1) comprising a plurality of blades (48) and a blade support ring (47) provided with housings (50), each receiving a pivot (52) bearing the foot (58) of one of said blades (48), characterised in that at least one of the pivots (52) is equipped with at least one counterweight system (90, 91) provided with at least one inner channel (93, 96) for airflow ventilation discharge (F1, F3) for capturing and guiding said airflow directly in contact with the blade foot (58) borne by said at least one of the pivots (52).Type: ApplicationFiled: October 8, 2013Publication date: April 10, 2014Applicant: SNECMAInventors: Sebastien TAJAN, Christophe Jacquemard
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Publication number: 20140099205Abstract: The principal aim of the invention is a cleat (100) for a blade foot (58) of a blade (48) of a propeller (32) of a turboengine (1), characterised in that it is open-work to allow the discharge of ventilation airflow of the blade foot (58).Type: ApplicationFiled: October 2, 2013Publication date: April 10, 2014Applicant: SNECMAInventors: Sebastien TAJAN, Christophe Jacquemard