Patents Assigned to Moteurs Leroy-Somer
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Publication number: 20150315989Abstract: The invention concerns a method for regulating the injection of fuel into a heat engine of a generator set including an alternator driven by the heat engine, the alternator including a voltage regulator, the heat engine including a speed regulator having an inlet that can receive an external speed setpoint, the method including the following steps: detecting a variation in torque and kinetic energy from electrical measurements on the alternator, carrying out an action on the input of the setpoint of the voltage regulator and/or the speed regulator, on the basis of the magnitude of the variation in torque relative to the kinetic energy level.Type: ApplicationFiled: November 22, 2013Publication date: November 5, 2015Applicant: MOTEURS LEROY-SOMERInventors: Jean-Marie ANDREJAK, Samuel MOSER, Patrice BETGE
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Patent number: 9154068Abstract: A method for regulating the output voltage of the alternator of a generator set, the generator set including a heat engine driving the alternator and the alternator including a rotor having a pole wheel. The method includes the following step: modifying the current in the pole wheel, at least during an increase in the load at the outlet of the alternator, in such a way as to bring the output voltage of the alternator to a value lower than the value before the increase in the load, the modification of the current in the pole wheel depending on the deceleration of the heat engine.Type: GrantFiled: August 28, 2012Date of Patent: October 6, 2015Assignee: MOTEURS LEROY-SOMERInventors: Jean-Marie Andrejak, Samuel Moser, Patrice Betge
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Patent number: 9112393Abstract: A rotor (100) having a first plurality of laminates (110), comprising a first plurality of protrusions (120) located at a periphery of each of the first plurality of laminates, and a second plurality of laminates (1101), arranged differently from the first plurality of laminates (110) around a shaft hole (132), comprising a second plurality of protrusions (120?) located at a periphery of each of the second plurality of laminates, wherein the first plurality of protrusions are asymmetric and/or angularly offset from the second plurality of protrusions, and wherein the second plurality of protrusions are asymmetric and/or angularly offset from the first plurality of protrusions. The rotor further having a plurality of magnets (115), each inserted between the first plurality of protrusions and/or the second plurality of protrusions, wherein reactive forces operate to hold the plurality of magnets.Type: GrantFiled: March 16, 2010Date of Patent: August 18, 2015Assignees: Control Techniques Dynamics Limited, Moteurs Leroy SomerInventors: Sujitha Jayasoma, Gaetan Adrien, Gunaratnam Sooriyakumar, Jean-Marc Brun
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Publication number: 20150202943Abstract: The invention relates to an assembly including: a heat engine; a generator, the shaft of which is rotated by the heat engine; one or more electric motors for the evaporators of a vehicle cooling or air-conditioning system, the generator powering the electric evaporator motor(s) by an inverter; one or more electric motors for the condenser of the cooling or air-conditioning system, in which the motors include a four-pole rotor, the generator directly powering the condenser motor(s) and the supply voltage of the condenser motor(s) being the generator output voltage; a compressor which is driven mechanically by the heat engine; and an auxiliary electric motor for driving the compressor when it is not being driven by the heat engine.Type: ApplicationFiled: July 17, 2013Publication date: July 23, 2015Applicant: MOTEURS LEROY-SOMERInventors: Régis GIRAUD, Stéphane DEDIEU
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Publication number: 20150145351Abstract: The present invention relates to a method for potting a stator of an electric machine, including:—introducing an expandable, preferably elastically deformable, non-metallic shell in a non-expanded state into the stator,—expanding the shell,—pouring a resin around the shell, inside the stator,—retracting and removing the shell after the resin has set.Type: ApplicationFiled: April 26, 2013Publication date: May 28, 2015Applicant: MOTEURS LEROY-SOMERInventors: Sébastien Porcher, Haikel Gherairi, Stéphane Dufau
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Patent number: 8987952Abstract: The present invention relates to an open rotary electric machine having a rotor mounted to rotate relative to at least one stator and co-operating with the stator to define at least one airgap, the rotor being suitable for rotating at least one fan having at least two channels, said fan including a first channel generating a first cooling air stream passing through the stator, and a second channel generating a second cooling air stream passing through the rotor, the fan including a solid web separating the first and second air streams.Type: GrantFiled: February 16, 2009Date of Patent: March 24, 2015Assignee: Moteurs Leroy-SomerInventor: Alexis Dutau
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Publication number: 20140361657Abstract: The invention relates to a magnetic circuit for a rotary electric machine, including: a plurality of packs of sheets stacked to form sectors, the facing sidewalls of said packs including nestable projections; and inserts introduced into housings defined at least partially by the nesting of the projections, said inserts being used to assemble the sectors to one another.Type: ApplicationFiled: December 4, 2012Publication date: December 11, 2014Applicant: MOTEURS LEROY-SOMERInventor: Patrick Vohlgemuth
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Publication number: 20140346912Abstract: The present invention relates to a flux-switching machine, including a stator having phase windings and field coils, wherein, in the machine, at least one field coil is arranged in a pair of notches separated by at least three teeth.Type: ApplicationFiled: November 7, 2012Publication date: November 27, 2014Applicant: MOTEURS LEROY-SOMERInventors: Philippe Manfe, Benjamin Gaussens
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Publication number: 20140265668Abstract: The present invention relates to a rotor for a rotary electric machine, extending along a longitudinal axis, including: projecting poles having pole shoes, and at least one internal cooling channel extending axially along at least one pole shoe.Type: ApplicationFiled: October 4, 2012Publication date: September 18, 2014Applicant: Moteurs Leroy-SomerInventor: Alexis Dutau
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Publication number: 20140225575Abstract: A method for regulating the output voltage of the alternator of a generator set, the generator set including a heat engine driving the alternator and the alternator including a rotor having a pole wheel. The method includes the following step: modifying the current in the pole wheel, at least during an increase in the load at the outlet of the alternator, in such a way as to bring the output voltage of the alternator to a value lower than the value before the increase in the load, the modification of the current in the pole wheel depending on the deceleration of the heat engine.Type: ApplicationFiled: August 28, 2012Publication date: August 14, 2014Applicant: MOTEURS LEROY-SOMERInventors: Jean-Marie Andrejak, Samuel Moser, Patrice Betge
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Publication number: 20140217746Abstract: The present invention relates to a method for regulating the injection of fuel into a combustion engine of an electric generator set including an alternator driven by the electric motor, the electric generator set including at least one sensor sensing the speed of the combustion engine and using a control loop having at least at input a signal coming from the sensor, the method involving the following steps: detecting an increase in load on the output side of the alternator from at least one electrical quantity on the output side of the alternator and, when an increase in load is detected, substituting at least one predefined value for at least one value delivered by the speed sensor at input to the control loop.Type: ApplicationFiled: August 1, 2012Publication date: August 7, 2014Applicant: MOTEURS LEROY-SOMERInventors: Samuel Moser, Jean-Marie Andrejak, Patrice Betge
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Publication number: 20140205464Abstract: The invention relates to an electric rotary machine including: a shaft of a rotor rotating about an axis, a fan carried by the shaft of the rotor, and a motor for driving the fan, allowing modulation of the relative rotational speed of the fan in relation to the shaft of the rotor.Type: ApplicationFiled: August 28, 2012Publication date: July 24, 2014Applicant: MOTEURS LEROY-SOMERInventor: Patrick Vohlgemuth
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Publication number: 20140203788Abstract: The invention relates to a method for regulating the output voltage of the alternator of a generator set, said generator set including a heat engine driving the alternator, the alternator including a rotor having a pole wheel. Said method includes the following step: detection of an increase in the power at the outlet of the alternator, and in the event of a detected increase, the value of the current in the polar wheel is modified in such a way as to temporarily bring the output voltage of the alternator to a value lower than the value before the detection of the increase in power, with the aim of decreasing the level of torque required from the heat engine.Type: ApplicationFiled: September 3, 2012Publication date: July 24, 2014Applicant: MOTEURS LEROY-SOMERInventors: Jean-Marie Andrejak, Samuel Moser, Patrice Betge
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Publication number: 20140191611Abstract: The invention relates to a magnetic rotor core for an electric rotary machine, including a stack of magnetic laminations having some poles provided with pole tips, said core including a stack that comprises laminations of which at least one of the poles has at least one at least partially truncated pole tip, preferably a single pole tip.Type: ApplicationFiled: August 1, 2012Publication date: July 10, 2014Applicant: MOTEURS LEROY-SOMERInventor: Patrick Vohlgemuth
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Publication number: 20140176087Abstract: The present invention relates to an alternator to be electrically connected to a load, the alternator including a rotor including: a rotary field, an excitation winding, a dissipative component and a switchover system allowing the rotary field to be connected selectively to the excitation winding or to the dissipative component, and a controller controlling the switchover system so as to regulate the current in the rotary field and, in response to a reduction in the load applied to the alternator, connects the dissipative component to the rotary field to dissipate the inductive energy that has built up in the rotary field.Type: ApplicationFiled: June 12, 2012Publication date: June 26, 2014Applicant: MOTEURS LEROY-SOMERInventors: Emile Mouni, Samuel Moser
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Publication number: 20130313828Abstract: The invention relates to electromechanical assemblies comprising an alternator, especially of high power, typically greater than or equal to IMW, and a converter, the alternator comprising a rotor driven in rotation, by a wind turbine for example, and more particularly to wound rotor synchronous alternators. The drive can also take place by means of a tide-driven, hydraulic or marine-current-driven generator. An alternator comprises in a manner known per se a field winding, generally at the rotor, supplied with DC current either by split rings and brushes, or by an exciter, so as to generate in an armature winding, generally at the stator, an AC voltage.Type: ApplicationFiled: July 31, 2013Publication date: November 28, 2013Applicant: Moteurs Leroy-SomerInventors: Luc Moreau, Pierre Rigaud, Thomas Verchere
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Publication number: 20130187507Abstract: The present invention relates to a rotor for a rotary electric machine, comprising: a hub comprising a stack of sheets, permanent magnets arranged on the surface of the stack of sheets, pole shoes covering the magnets and an attachment means for holding the pole shoes on the hub.Type: ApplicationFiled: October 4, 2011Publication date: July 25, 2013Applicant: MOTEURS LEROY-SOMERInventors: Colas Fouquart, Yannick Messin, Pierre Rigaud, Thomas Verchere
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Publication number: 20130106218Abstract: An electric machine including a casing and a terminal box attached to the casing. The terminal box includes two half-shells that are assembled one against the other, the half-shells being identical before they are made to form one or more cable ducts by the removal of one or more detachable portions provided for this purpose.Type: ApplicationFiled: March 22, 2011Publication date: May 2, 2013Applicant: MOTEURS LEROY-SOMERInventor: Patrick Vohlgemuth
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Patent number: 8427018Abstract: A stator for a rotary electric machine, the stator including a jacket and a stack of stator laminations placed inside the jacket, subassemblies of laminations of the stack having extensions with flow channels for passing a cooling fluid therethrough, the subassemblies being disposed in such a manner that fluid flowing along the stack is subjected to a succession of passes within the channels and of passes through wide zones extending between the channels, the stack laminations being arranged in such a manner that for at least one extension, and better for the majority, or even all of the extensions of a subassembly, the flow section made available to the flow of cooling fluid within the extension is greater than the flow section defined by the space extending radially between the extensions and the jacket.Type: GrantFiled: February 16, 2009Date of Patent: April 23, 2013Assignee: Moteur Leroy-SomerInventors: Alexis Dutau, Jacques Saint-Michel
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Patent number: 8354765Abstract: A motor provided with a secondary driving system including: a casing; a dented wheel permanently rotating during the normal operation of the motor together with the rotor inside the casing; an endless screw that can be brought into a clutch engagement position in which the screw meshes with the dented wheel and in which the rotation of the screw drives the dented wheel in a non-reversible manner and that can be removed from said position in order to allow the normal operation of the motor; a driving member for manually rotating the endless screw, the driving member rotating about the same rotation axis as the endless screw and rotating the latter by direct engagement.Type: GrantFiled: September 12, 2008Date of Patent: January 15, 2013Assignee: Moteurs Leroy-SomerInventors: Christophe Laliche, Serge Deltreil, Francisco Jimenez