Patents by Inventor Xavier Dunesme
Xavier Dunesme 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).
-
Patent number: 11349370Abstract: The invention relates mainly to a rotary electric machine for a motor vehicle. The machine (10) comprises a shaft (13); a rotor (12); a stator (16) comprising a body (25) provided with slots, and a winding (26) inserted into the slots; a first bearing (37) and a second bearing (38) surrounding an assembly formed by the rotor and the stator and each comprising a housing (40, 44) for rotatably mounting the rotor shaft (13). The first bearing comprises a transverse flange (371) and a cylindrical wall (372) of axial orientation derived from an outer periphery of said flange. The second bearing comprises a transverse flange (48) closing the first bearing and at least one rim (63) projecting from the flange and forming a junction area (64) where it joins the first bearing. Furthermore, the stator body has a region (Z1) of shrink-fitting to the cylindrical wall.Type: GrantFiled: April 26, 2018Date of Patent: May 31, 2022Assignee: Valeo Equipements Electriques MoteurInventors: Michel Fakes, Yannick Le-Meitour, Eric Simon, Matthieu Bonnici, Xavier Dunesme, Mathieu Redon
-
Publication number: 20200153309Abstract: The invention relates mainly to a rotary electric machine for a motor vehicle. The machine (10) comprises a shaft (13); a rotor (12); a stator (16) comprising a body (25) provided with slots, and a winding (26) inserted into the slots; a first bearing (37) and a second bearing (38) surrounding an assembly formed by the rotor and the stator and each comprising a housing (40, 44) for rotatably mounting the rotor shaft (13). The first bearing comprises a transverse flange (371) and a cylindrical wall (372) of axial orientation derived from an outer periphery of said flange. The second bearing comprises a transverse flange (48) closing the first bearing and at least one rim (63) projecting from the flange and forming a junction area (64) where it joins the first bearing. Furthermore, the stator body has a region (Z1) of shrink-fitting to the cylindrical wall.Type: ApplicationFiled: April 26, 2018Publication date: May 14, 2020Applicant: Valeo Equipements Electriques MoteurInventors: Michel Fakes, Yannick Le-Meitour, Eric Simon, Matthieu Bonnici, Xavier Dunesme, Mathieu Redon
-
Publication number: 20180083498Abstract: The invention relates to a stator (13) for an alternator or an electric machine, which comprises: a cylindrical hub (14) in which a plurality of slots (201) that extend in the axial direction are formed, and a coil (12) mounted in the slots; in which the stator core (14) comprises: a cylindrical base portion (203) forming a cylinder head (203), a plurality of teeth (202) arranged such as to extend from the base portion towards an axial center (X-X), the plurality of slots (201) being defined by the base portion and by an adjacent pair of the teeth (202). For each notch (201) the width at the opening of the notch (l_eo) is smaller than the width (l_ec) at the cylinder head (203).Type: ApplicationFiled: October 30, 2015Publication date: March 22, 2018Applicant: VALEO EQUIPEMENTS ELECTRIQUES MOTEURInventors: Eric SIMON, Matthieu BONNICI, Olivier SAVINOIS, Bruno DANDRE, Vincent RAMET, Stéphane DE CLERCQ, Xavier DUNESME, Jean-Francois GAUTRU, Pierre FAVEROLLE
-
Patent number: 9742231Abstract: A rotary electrical machine comprising a rotor and a stator (1). The stator comprises a tooth (21) delimited by notches (22), and a winding composed of n×M wires (3), wherein n corresponds to a number of phases and is equal to at least 2, and M corresponds to a number of continuous electric wires for each phase (3) and is equal to at least one. The winding is composed of successive turns, each of the successive turns comprising n×M wires wound simultaneously in n of the notches (22) to be inserted in n series of notches. Each of the series of the notches is dedicated to a single phase, and for each of the successive turns, each of the assembly of the M wires (3) constitutes a phase and is inserted in the same series of the notches (22).Type: GrantFiled: March 20, 2015Date of Patent: August 22, 2017Assignee: Valeo Equipements Electriques MoteurInventors: Xavier Dunesme, Jérôme Fournier, Jean-Pierre Chochoy, Ludovic Darras, Alain Defebvin, Stéphane De Clercq, Olivier Luittre, David Desmet, Nicolas Langlard
-
Publication number: 20150194853Abstract: A rotary electrical machine comprising a rotor and a stator (1). The stator comprises a tooth (21) delimited by notches (22), and a winding composed of n×M wires (3), wherein n corresponds to a number of phases and is equal to at least 2, and M corresponds to a number of continuous electric wires for each phase (3) and is equal to at least one. The winding is composed of successive turns, each of the successive turns comprising n×M wires wound simultaneously in n of the notches (22) to be inserted in n series of notches. Each of the series of the notches is dedicated to a single phase, and for each of the successive turns, each of the assembly of the M wires (3) constitutes a phase and is inserted in the same series of the notches (22).Type: ApplicationFiled: March 20, 2015Publication date: July 9, 2015Inventors: Xavier DUNESME, Jérôme FOURNIER, Jean-Pierre CHOCHOY, Ludovic DARRAS, Alain DEFEBVIN, Stéphane DE CLERCQ, Olivier LUITTRE, David DESMET, Nicolas LANGLARD
-
Patent number: 9016610Abstract: A method and device for winding a rotor or a stator (2), of a rotary electrical machine, having a series of teeth (21) which are delimited by notches (22). In each notch there are inserted M continuous electric wires (3) constituting a turn; M being equal to 1 or more, characterised in that n×M wires (3) are wound simultaneously in a number n of notches (22), n corresponding to the number of phases and being ?2. The assembly of the M wires (3) constituting a phase, being inserted in a single notch (22). The device for winding has at least two carriages (4, 5), with a series of teeth, delimited by n notches (40, 50). And, likewise corresponding to the winding, each set of M continuous electric wires (3) constituting a turn, is characterised in that M×n wires (3) are inserted simultaneously in the extension of the n notches (22) of the rotary electrical machine in the n notches (40, 50) in the respective carriages (4, 5).Type: GrantFiled: June 28, 2010Date of Patent: April 28, 2015Assignee: Valeo Equipements Electriques MoteurInventors: Xavier Dunesme, Jérôme Fournier, Jean-Pierre Chochoy, Ludovic Darras, Alain Defebvin, Stéphane DeClercq, Olivier Luittre, David Desmet, Nicolas Langlard
-
Patent number: 8946963Abstract: A polyphase stator for an internally ventilated rotating electrical machine comprises a body (14) provided with slots and carrying a coil (12) having at least one winding per phase. A plurality of pairs of lateral branches are mounted in a slot of the body (14). A plurality of connecting heads (50 to 55) extend outside the body (14) so as to form a first lead-out (42) and interconnect each pair of lateral branches. A plurality of coupling feet (150 to 155) are offset circumferentially with respect to the plurality of connecting heads and extend outside the body (14) so as to form a second lead-out (43) and interconnect each pair of lateral branches. One of the pluralities has a generally pointed shape and has an axial length of between 15 and 20 mm. The stator is used with an alternator or alternator-stator for a motor vehicle. An internally ventilated electrical machine is equipped with the stator.Type: GrantFiled: July 4, 2008Date of Patent: February 3, 2015Assignee: Valeo Equipments Electriques MoteurInventors: Xavier Dunesme, Jerome Fournier, Nicolas Langlard, Pierre Faverolle
-
Publication number: 20120292423Abstract: A method and device for winding a rotor or a stator (2), of a rotary electrical machine, having a series of teeth (21) which are delimited by notches (22). In each notch there are inserted M continuous electric wires (3) constituting a turn; M being equal to 1 or more, characterised in that n×M wires (3) are wound simultaneously in a number n of notches (22), n corresponding to the number of phases and being ?2. The assembly of the M wires (3) constituting a phase, being inserted in a single notch (22). The device for winding has at least two carriages (4, 5), with a series of teeth, delimited by n notches (40, 50). And, likewise corresponding to the winding, each set of M continuous electric wires (3) constituting a turn, is characterised in that M×n wires (3) are inserted simultaneously in the extension of the n notches (22) of the rotary electrical machine in the n notches (40, 50) in the respective carriages (4, 5).Type: ApplicationFiled: June 28, 2010Publication date: November 22, 2012Inventors: Xavier Dunesme, Jérôme Fournier, Jean-Pierre Chochoy, Ludovic Darras, Alain Defebvin, Stéphane De Clercq, Olivier Luittre, David Desmet, Nicolas Langlard
-
Publication number: 20100295393Abstract: A polyphase stator for an internally ventilated rotating electrical machine comprises a body (14) provided with slots and carrying a coil (12) having at least one winding per phase. A plurality of pairs of lateral branches are mounted in a slot of the body (14). A plurality of connecting heads (50 to 55) extend outside the body (14) so as to form a first lead-out (42) and interconnect each pair of lateral branches. A plurality of coupling feet (150 to 155) are offset circumferentially with respect to the plurality of connecting heads and extend outside the body (14) so as to form a second lead-out (43) and interconnect each pair of lateral branches. One of the pluralities has a generally pointed shape and has an axial length of between 15 and 20 mm. The stator is used with an alternator or alternator-stator for a motor vehicle. An internally ventilated electrical machine is equipped with the stator.Type: ApplicationFiled: July 4, 2008Publication date: November 25, 2010Inventors: Xavier Dunesme, Jéróme Fournier, Nicolas Langlard, Pierre Faverolle