Patents by Inventor Jerome RAGOT

Jerome RAGOT 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: 12255498
    Abstract: A rotor for an electric machine includes a rotor main body which has at least two poles between which in the circumferential direction of the rotor is disposed at least one pole gap, and a rotor shaft which is coupled in a rotationally fixed manner to the rotor main body. The rotor has a support device which has a covering body that is configured for covering at least regions of an end side of the rotor main body. The support device has an annular body, which is different from the covering body, and in the direction of radial extent of the rotor is braced in relation to the rotor main body, on the one hand, and in the direction of radial extent of the rotor is braced in relation to the covering body, on the other hand.
    Type: Grant
    Filed: December 1, 2022
    Date of Patent: March 18, 2025
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Markus Lang, Jerome Ragot, Robert Schmidt
  • Publication number: 20250088051
    Abstract: An electric axial flux machine includes a permanent magnet arrangement having permanent magnets to excite a magnetic flux, a flux-guiding carrier having two axially opposite end sides, wherein at least one of the end sides has carrier regions to which the permanent magnets are secured, and a binding arrangement for absorbing forces acting on the permanent magnets, which has a plurality of bindings extending axially through the carrier and at the end side over the permanent magnets to fix the permanent magnets to the associated carrier regions and to absorb forces acting axially on the permanent magnets, and where the carrier has axial passages through which the bindings are guided and which wrap the permanent magnets and the carrier regions.
    Type: Application
    Filed: September 6, 2024
    Publication date: March 13, 2025
    Inventors: Alena BABL, Matthias Dorfner, Zakaria El Khawly, Jerome Ragot
  • Publication number: 20240372429
    Abstract: A rotor for an electric machine includes a rotor main part which has at least one pole core, at least one winding device which is received on the at least one pole core, and at least one contact device which is rotationally fixed to the rotor main part and which is coupled to the at least one winding device to conduct a current. The at least one winding device includes at least one winding that is plugged onto the at least one pole core and has two winding wire ends, at least one winding wire end of which is coupled to the at least one contact device to conduct a current via at least one plug connection.
    Type: Application
    Filed: August 31, 2022
    Publication date: November 7, 2024
    Inventors: Markus LANG, Jerome RAGOT, Robert SCHMIDT
  • Publication number: 20240322633
    Abstract: The invention relates to a rotor (20) for an electric machine (10), comprising:—at least one rotor laminated core (30) that has at least one coil receiving opening (40);—at least one coil device (50) which is located in the at least one coil receiving opening (40); and—at least one holding device (70) which is joined to the rotor laminated core (30) and prevents an outward movement (B), brought about by centrifugal force, of the at least one coil device (50) in the radial extension direction (R) of the rotor (20) and out of the at least one coil receiving opening (40) during normal use of the electric machine (10).
    Type: Application
    Filed: July 25, 2022
    Publication date: September 26, 2024
    Inventors: Jerome RAGOT, Robert SCHMIDT
  • Publication number: 20240283317
    Abstract: A sliding cover for a salient-pole rotor of an electric machine is configured to close a slot formed between two rotor poles of the salient-pole rotor which are adjacent in the peripheral direction and two supporting rings of the salient-pole rotor which are mutually axially opposite. The sliding cover is of a multi-part design and includes a slot wedge, which can be mechanically connected to the two adjacent rotor poles; a support, which is linearly guided in the slot wedge and includes a sealing surface of the sliding cover for pressing against at least one of the supporting rings and can be slid axially along the slot wedge in order to change the axial position of the sealing surface.
    Type: Application
    Filed: July 26, 2022
    Publication date: August 22, 2024
    Inventors: Markus LANG, Jerome RAGOT, Robert SCHMIDT
  • Publication number: 20240204604
    Abstract: A rotor includes a magnetic field-generating component for producing a rotor magnetic field and a rotor core for holding the component. The rotor core has an annular rotor yoke and at least two rotor poles which are arranged on the rotor yoke and are configured in multiple parts, and each of which has a rotor tooth integrally formed on the rotor yoke and a pole shoe that is separate from the rotor tooth for arranging the component on the corresponding rotor tooth. The pole shoes are pressed radially against the respective rotor tooth, and the rotor has auxiliary joining parts, each of which is configured to fix at least one pole shoe to the corresponding rotor tooth by a force-fitting connection and which are at least partly arranged in respective pole gaps between two rotor poles and are secured to the rotor yoke by at least one connection element.
    Type: Application
    Filed: May 17, 2022
    Publication date: June 20, 2024
    Inventors: Silko FEUSTEL, Jerome RAGOT, Yann TREMAUDANT
  • Publication number: 20240162767
    Abstract: The invention relates to a rotor, in particular for a current-excited synchronous machine, comprising a rotor main body which has a plurality of rotor teeth, the rotor teeth being wound with a conductor material in order to form a winding, the conductor material having conductor ends which, in order to produce an electrical connection, are pressed axially against a stop via a contact element, and the contact element or the stop being designed to electrically connect, in the circumferential direction, at least two conductor ends.
    Type: Application
    Filed: April 13, 2022
    Publication date: May 16, 2024
    Inventors: Jerome RAGOT, Robert SCHMIDT
  • Patent number: 11817744
    Abstract: A stator for an electric machine of a motor vehicle includes a laminated core having an inner side with winding grooves and an outer side. Windings, which are arranged in the winding grooves, form winding heads on axially opposing front faces of the laminated core. A cooling jacket conducts cooling fluid and has a first metal sheet which forms an inner wall of the cooling jacket facing the laminated core, and a second metal sheet which forms an outer wall of the cooling jacket surrounding the inner wall. An axial height of the cooling jacket exceeds an axial height of the laminated core. The cooling jacket has a laminated-core cooling jacket region for encasing the laminated core and two axially opposing winding-head cooling jacket regions adjoining the laminated-core cooling jacket region for encasing the winding heads.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: November 14, 2023
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Felix Bolotnikov, Thomas Hoefler, Joachim Maerz, Jerome Ragot
  • Publication number: 20230179047
    Abstract: A rotor for an electric machine includes a rotor main body which has at least two poles between which in the circumferential direction of the rotor is disposed at least one pole gap, and a rotor shaft which is coupled in a rotationally fixed manner to the rotor main body. The rotor has a support device which has a covering body that is configured for covering at least regions of an end side of the rotor main body. The support device has an annular body, which is different from the covering body, and in the direction of radial extent of the rotor is braced in relation to the rotor main body, on the one hand, and in the direction of radial extent of the rotor is braced in relation to the covering body, on the other hand.
    Type: Application
    Filed: December 1, 2022
    Publication date: June 8, 2023
    Inventors: Markus LANG, Jerome RAGOT, Robert SCHMIDT
  • Patent number: 11549557
    Abstract: A shaft-hub connection including a hub element and a shaft element is provided. The hub element includes a hub. The shaft element includes at least one first elongated region arranged in at least one second elongated region of the hub and is at least rotationally fixed to the hub element by way of a longitudinal press-fit including the elongated regions. The longitudinal press-fit has at least one first excess region with a first excess, and at least one second excess region, following the first excess region in the circumferential direction of the shaft element, with a second excess that is smaller than the first excess.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: January 10, 2023
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Endre Barti, Jerome Ragot, Anastasios Vichos
  • Patent number: 11381138
    Abstract: A cooling cap for a stator of an electrical machine of a motor vehicle is provided. The cooling cap can be fitted onto an end winding of electrical windings of the stator which project beyond an axial end of a laminated core of the stator and which cooling cap is designed as a heat sink for cooling the end winding, wherein the cooling cap is formed, at least in regions, from an electrical insulating material. A stator and a motor vehicle including the cooling cap are also provided.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: July 5, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Julian Blum, Andreas Huber, Jerome Ragot, Jens Richter
  • Publication number: 20200412183
    Abstract: A stator for an electric machine of a motor vehicle includes a laminated core having an inner side with winding grooves and an outer side. Windings, which are arranged in the winding grooves, form winding heads on axially opposing front faces of the laminated core. A cooling jacket conducts cooling fluid and has a first metal sheet which forms an inner wall of the cooling jacket facing the laminated core, and a second metal sheet which forms an outer wall of the cooling jacket surrounding the inner wall. An axial height of the cooling jacket exceeds an axial height of the laminated core. The cooling jacket has a laminated-core cooling jacket region for encasing the laminated core and two axially opposing winding-head cooling jacket regions adjoining the laminated-core cooling jacket region for encasing the winding heads.
    Type: Application
    Filed: October 23, 2019
    Publication date: December 31, 2020
    Inventors: Felix BOLOTNIKOV, Thomas HOEFLER, Joachim MAERZ, Jerome RAGOT
  • Patent number: 10840751
    Abstract: An electrical synchronous machine is provided for a rail-free vehicle. The vehicle has drive wheels and the synchronous machine is designed to generate a torque, which propels the vehicle, at the drive wheels. The synchronous machine has a stator and a rotor which rotates around the stator, wherein the stator has a stator winding of at least three-phase construction for forming a rotating stator magnetic field, and wherein the rotor has at least one rotor winding which is designed for forming a rotor magnetic field. A method for at least partially circumferentially establishing a current-excited synchronous machine provides a rotor yoke, provides a large number of rotor poles, fastens the rotor poles to the rotor yoke for forming a rotor, provides a stator, and inserts the stator into the rotor.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: November 17, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Burghard Baier, Julian Blum, Dragoljub Duricic, Zakaria El Khawly, Augusto Guccione, Andreas Huber, Daniel Loos, Joerg Merwerth, Jerome Ragot, Jan-Oliver Roth, Berthold Schinnerl, Jan Sousek, Sherif Zaidan
  • Publication number: 20200244145
    Abstract: A cooling cap for a stator of an electrical machine of a motor vehicle is provided. The cooling cap can be fitted onto an end winding of electrical windings of the stator which project beyond an axial end of a laminated core of the stator and which cooling cap is designed as a heat sink for cooling the end winding, wherein the cooling cap is formed, at least in regions, from an electrical insulating material. A stator and a motor vehicle including the cooling cap are also provided.
    Type: Application
    Filed: April 15, 2020
    Publication date: July 30, 2020
    Inventors: Julian BLUM, Andreas HUBER, Jerome RAGOT, Jens RICHTER
  • Publication number: 20190390717
    Abstract: A shaft-hub connection including a hub element and a shaft element is provided. The hub element includes a hub. The shaft element includes at least one first elongated region arranged in at least one second elongated region of the hub and is at least rotationally fixed to the hub element by way of a longitudinal press-fit including the elongated regions. The longitudinal press-fit has at least one first excess region with a first excess, and at least one second excess region, following the first excess region in the circumferential direction of the shaft element, with a second excess that is smaller than the first excess.
    Type: Application
    Filed: September 4, 2019
    Publication date: December 26, 2019
    Inventors: Endre BARTI, Jerome RAGOT, Anastasios VICHOS
  • Publication number: 20190157924
    Abstract: An electrical synchronous machine is provided for a rail-free vehicle. The vehicle has drive wheels and the synchronous machine is designed to generate a torque, which propels the vehicle, at the drive wheels. The synchronous machine has a stator and a rotor which rotates around the stator, wherein the stator has a stator winding of at least three-phase construction for forming a rotating stator magnetic field, and wherein the rotor has at least one rotor winding which is designed for forming a rotor magnetic field. A method for at least partially circumferentially establishing a current-excited synchronous machine provides a rotor yoke, provides a large number of rotor poles, fastens the rotor poles to the rotor yoke for forming a rotor, provides a stator, and inserts the stator into the rotor.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Inventors: Burghard BAIER, Julian BLUM, Dragoljub DURICIC, Zakaria EL KHAWLY, Augusto GUCCIONE, Andreas HUBER, Daniel LOOS, Joerg MERWERTH, Jerome RAGOT, Jan-Oliver ROTH, Berthold SCHINNERL, Jan SOUSEK, Sherif ZAIDAN