Patents Assigned to Moteurs Leroy-Somers
  • Rotary electric machine with forced ventilation
    Patent number: 6909211
    Abstract: The present invention provides an electric machine with forced ventilation, the machine comprising: a rotor capable of rotating about an axis of rotation; a stator within which the rotor can rotate, said stator comprising a stack of laminations presenting slots housing windings; and a fan, in particular a fan that is capable of rotating independently of the rotor; the laminations being configured to form cooling channels in which a stream of cooling air generated by the fan can flow, and the stack being disposed between two spacers interconnected by bars.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: June 21, 2005
    Assignee: Moteurs Leroy-Somer
    Inventors: Philippe Ciciliani, Arnaud Lhote, Hong-Hai Duong
  • Bearing assembly including rolling elements
    Patent number: 6896412
    Abstract: The present invention relates to an assembly comprising: a cage, rolling elements placed inside the cage, a shaft passing through said cage and supported by the rolling elements, the cage having sealing parts extending on either side of the rolling elements, the two spaces formed between said sealing parts and the shaft, at least one communication path between the two spaces.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: May 24, 2005
    Assignee: Moteurs Leroy-Somer
    Inventor: Jean Begue
  • Rotary electric machine having a flux-concentrating rotor and a stator with windings on teeth
    Patent number: 6891299
    Abstract: A rotary electric machine including a flux-concentrating rotor with permanent magnets disposed between pole pieces, and a stator with teeth having a free end deprived of pole swellings and a concentrated winding. The pole pieces and the magnets are configured so as to minimize the difference Ld?Lq where Ld is inductance on a forward axis and Lq is inductance on a quadrature axis.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: May 10, 2005
    Assignee: Moteurs Leroy-Somer
    Inventors: Eric Coupart, Pascal Gauthier, Jacques Saint-Michel, Christophe Gilles, André Eydelie, Laurent Jadeau, Philippe Augier, Jean-Marie Guillot
  • Electrical machine, in particular for an elevator
    Publication number: 20050029883
    Abstract: The present invention relates to an electrical machine, comprising: a supporting structure; a stator cantilevered-out from the structure; and a rotor mounted to rotate on the structure about an axis of rotation in such a manner as to be capable of being driven by the stator, the supporting structure comprising a hollow central shaft substantially coaxial about the axis of rotation of the rotor, an electric cable for powering the stator traveling along the inside of the shaft, and the rotor having a drive surface for transmitting torque to at least one element that is to be driven, the drive surface being situated at least in part around the shaft.
    Type: Application
    Filed: June 22, 2004
    Publication date: February 10, 2005
    Applicant: MOTEURS LEROY-SOMER
    Inventors: Pascal Gauthier, Christophe Gilles, Pascal Beynaud, Christian Rey
  • Discoid machine
    Patent number: 6833647
    Abstract: The present invention relates to a discoid machine having a rotor and a stator placed facing each other along the axis of rotation of the rotor. The machine is synchronous and has at least two rotors disposed on either side of a stator.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: December 21, 2004
    Assignee: Moteurs Leroy-Somer
    Inventors: Jacques Saint-Michel, Atef Abou-Akar
  • Stator for a rotary electric machine
    Publication number: 20040124720
    Abstract: The present invention relates to a stator for a rotary electric machine, the stator comprising a stator body made up of a stack of stator laminations and first and second nested concentric disposed with clearance about the stator body. First resilient damping elements are placed between the two parts. These resilient damping elements are disposed circumferentially around the inner one of said two parts between the outer surface of said inner part and the facing inner surface of the outer part. Relative movement between the two parts is limited both axially and circumferentially by second damping elements.
    Type: Application
    Filed: December 26, 2002
    Publication date: July 1, 2004
    Applicant: MOTEURS LEROY-SOMER
    Inventors: Dominique Condamin, Jean Gaste, Philippe Murzeau, Eric Boulai
  • Machine including a pulley and an electric motor for driving an elevator cable
    Publication number: 20040124736
    Abstract: A machine includes a motor that includes a stator carrying a concentrated winding wound on teeth and a rotor rotatable about the stator. The rotor includes a tubular casing and permanent magnets, and a pulley coupled to the rotor.
    Type: Application
    Filed: October 20, 2003
    Publication date: July 1, 2004
    Applicant: MOTEURS LEROY-SOMER
    Inventors: Pascal Gauthier, Christophe Gilles, Pascal Beynaud
  • Strip of lamination sectors and a method of manufacturing a magnetic circuit for an electrical machine
    Patent number: 6741005
    Abstract: The invention relates to a strip of lamination sectors for making a magnetic circuit of an electrical machine, the sectors are interconnected by links, and the strip is for winding on a mandrel to form a stack of layers of sectors. Said links lie outside the sectors.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: May 25, 2004
    Assignee: Moteurs Leroy-Somer
    Inventor: Patrick Vohlgemuth
  • Device for producing electricity having voltage-booster chopper circuit with an IGBT transistor
    Patent number: 6713990
    Abstract: The invention provides a device for producing electricity intended in particular to be stowed on board a vehicle or a container, including a three-phase alternator able to be driven in rotation at a variable speed by a thermal engine, a rectifier for generating a rectified current form the current delivered by the alternator and a voltage-booster chopper using the self-inductance of the alternator to step up the voltage. The alternator includes six or eight poles and operates with a switching frequency of preferably between 3 and 15 kHz.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: March 30, 2004
    Assignee: Moteurs Leroy-Somer
    Inventors: Régis Giraud, Christian Andrieux, Eric Coupart
  • Alternator
    Publication number: 20040051412
    Abstract: The present invention relates to an electric rotary machine comprising:
    Type: Application
    Filed: July 7, 2003
    Publication date: March 18, 2004
    Applicant: MOTEURS LEROY SOMER
    Inventors: Patrick Vohlgemuth, Philippe R. Manfe, Francois C. Czajkowski
  • Electric machine having at least one magnetic field detector
    Patent number: 6683397
    Abstract: An electric machine includes a stator and a permanent magnet flux-concentrating rotor. The permanent magnet flux-concentrating rotor has permanent magnets and pole pieces. The permanent magnets are engaged between the pole pieces. The electric machine also has at least one magnetic-field detector that is mounted on the stator. The at least one-magnetic-field detector is mounted on the stator in such a manner as to detect a magnetic field of the permanent magnets in a location that overlaps a peripheral region of the rotor when the machine if observed on the axis of rotation of the rotor.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: January 27, 2004
    Assignee: Moteurs Leroy-Somer
    Inventors: Pascal Gauthier, Eric Coupart, Jacques Saint-Michel, Christophe Gilles
  • Method and a machine for manufacturing a magnetic circuit for an electrical machine
    Publication number: 20040010907
    Abstract: A method of manufacturing a magnetic circuit for an electrical machine, the method comprising:
    Type: Application
    Filed: January 22, 2003
    Publication date: January 22, 2004
    Applicant: MOTEURS LEROY-SOMER
    Inventor: Patrick Vohlgemuth
  • Rotary electric machine with forced ventilation
    Publication number: 20040000821
    Abstract: The present invention provides an electric machine with forced ventilation, the machine comprising:
    Type: Application
    Filed: March 25, 2003
    Publication date: January 1, 2004
    Applicant: MOTEURS LEROY-SOMER
    Inventors: Philippe Ciciliani, Arnaud Lhote, Hong-Hai Duong
  • Drive element such as a driving wheel or a hoisting winch, the element comprising a synchronous motor
    Patent number: 6661137
    Abstract: The present invention relates to a drive element such as a driving wheel for a goods-handling cart or the like, or such as a hoisting winch, the drive element comprising a wheel or a drum and an electric motor for rotating the wheel or the drum. The electric motor is a synchronous motor having a permanent-magnet rotor and a stator comprising teeth and respective individual windings on said teeth.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: December 9, 2003
    Assignee: Moteurs Leroy-Somer
    Inventor: Pascal Gauthier
  • Bearing assembly including rolling elements
    Publication number: 20030142892
    Abstract: The present invention relates to an assembly comprising:
    Type: Application
    Filed: December 26, 2002
    Publication date: July 31, 2003
    Applicant: MOTEURS LEROY-SOMER
    Inventor: Jean Begue
  • Rotary electric machine stator having individual removable coils
    Patent number: 6531797
    Abstract: The invention relates to a stator for a rotary electric machine. The stator comprising: a stator magnetic circuit having teeth and individual coils each engaged on a tooth, each coil including connection ends formed by respective flat bundles of stripped wires curved to form respective hook shapes, the connection ends being soldered to locally stripped portions of sheathed electric cables.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: March 11, 2003
    Assignee: Moteurs Leroy-Somer
    Inventors: Andre Eydelie, Phillippe Augier, Jean-Marie Guillot
  • Discoid machine
    Publication number: 20030011274
    Abstract: The present invention relates to a discoid machine having a rotor and a stator placed facing each other along the axis of rotation of the rotor. The machine is synchronous and has at least two rotors disposed on either side of a stator.
    Type: Application
    Filed: July 12, 2002
    Publication date: January 16, 2003
    Applicant: MOTEURS LEROY-SOMER
    Inventors: Jacques Saint-Michel, Atef Abou-Akar
  • Electric machine having an outer rotor
    Publication number: 20020171305
    Abstract: The present invention relates a rotary electric machine having
    Type: Application
    Filed: April 15, 2002
    Publication date: November 21, 2002
    Applicant: MOTEURS LEROY-SOMER
    Inventors: Eric Coupart, Pascal Gauthier, Christophe Gilles, Atef Abou Akar, Jacques Saint-Michel
  • Device for producing electricity from a three-phase network, in particular for a road vehicle
    Patent number: 6480404
    Abstract: A device for producing electricity, the device comprising a three-phase alternator comprising three windings, a rectifier for converting the AC delivered by the alternator into rectified current, and a voltage-raising chopper using the self-inductance of the alternator to raise the voltage. The device includes a switch unit enabling the three windings to be connected either in a star configuration when the alternator is being rotated to produce electricity, or else to the respective phases of a three-phase network when the alternator is stopped.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: November 12, 2002
    Assignee: Moteurs Leroy-Somer
    Inventors: Régis Giraud, Christian Andrieux, Christophe Cester
  • Rotary electric machine having a stator made up of sectors assembled together
    Publication number: 20020163278
    Abstract: The invention relates to a rotary electric machine including a stator, powered by a polyphase current, having a magnetic circuit with teeth forming intervening slots for receiving electrical conductors. The magnetic circuit is made up of an assembly of sectors defining air-gaps intersecting the teeth at half-width.
    Type: Application
    Filed: April 5, 2002
    Publication date: November 7, 2002
    Applicant: MOTEURS LEROY-SOMER
    Inventors: Pascal Gauthier, Eric Coupart, Jacques Saint-Michel, Christophe Gilles