Patents by Inventor Patrick Lee Jansen
Patrick Lee Jansen 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: 9093878Abstract: An electric machine that includes a rotor core made of magnetic steel; a stator configured with stationary windings therein; openings disposed within or on the rotor core; and a rotor circuit that is configured to introduce saliency based on an orientation of part of the rotor circuit in relationship to a pole location of the electric machine, where the rotor circuit is made of a conductive, non-magnetic material. A rotor component and various embodiments of electric machines are also disclosed. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.Type: GrantFiled: November 1, 2012Date of Patent: July 28, 2015Assignee: General Electric CompanyInventors: Kum Kang Huh, Patel Reddy, Ayman Mohamed Fawzi El-Refaie, Patrick Lee Jansen, Roy David Schultz, Lembit Salasoo
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Publication number: 20150084471Abstract: An electric machine that includes a rotor core made of magnetic steel; a stator configured with stationary windings therein; openings disposed within or on the rotor core; and a rotor circuit that is configured to introduce saliency based on an orientation of part of the rotor circuit in relationship to a pole location of the electric machine, where the rotor circuit is made of a conductive, non-magnetic material. A rotor component and various embodiments of electric machines are also disclosed. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.Type: ApplicationFiled: December 3, 2014Publication date: March 26, 2015Inventors: Kum Kang Huh, Patel Bhageerath Reddy, Ayman Mohamed Fawzi El-Refaie, Patrick Lee Jansen, Roy David Schultz, Lembit Salasoo
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Publication number: 20140361653Abstract: An electrical machine includes a rotor comprising a rotor core and a plurality of permanent magnets embedded radially within the rotor core to form a plurality of rotor poles. The electrical machine further includes a stator comprising a stator core disposed concentrically outside the rotor and including a plurality of stator teeth defining a plurality of stator slots there between. An arithmetic sum or difference of twice the number of stator teeth and the number of the stator poles equals the number of rotor poles.Type: ApplicationFiled: August 22, 2014Publication date: December 11, 2014Inventors: Patrick Lee Jansen, Ronghai Qu
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Patent number: 8847464Abstract: An electrical machine is provided. The electrical machine includes a rotor comprising an inner rotor having a plurality of inner rotor poles and an outer rotor having a plurality of outer rotor poles. The electrical machine further comprises a stator configured to modulate a magnetic flux and to transmit torque to inner rotor and the outer rotor, the stator comprising a stator core interposed concentrically between the inner rotor and the outer rotor; a multiple of stator windings disposed in a plurality of stator slots, the stator windings configured to form a multiple of stator poles. The stator further comprises a plurality of stator teeth interposed between the plurality of stator slots, wherein an arithmetic sum or difference of twice number of stator teeth and a number of the stator poles equals a number of rotor poles.Type: GrantFiled: June 12, 2008Date of Patent: September 30, 2014Assignee: General Electric CompanyInventors: Ronghai Qu, Patrick Lee Jansen
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Publication number: 20140116286Abstract: An electric machine that includes a rotor core made of magnetic steel; a stator configured with stationary windings therein; openings disposed within or on the rotor core; and a rotor circuit that is configured to introduce saliency based on an orientation of part of the rotor circuit in relationship to a pole location of the electric machine, where the rotor circuit is made of a conductive, non-magnetic material. A rotor component and various embodiments of electric machines are also disclosed. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.Type: ApplicationFiled: November 1, 2012Publication date: May 1, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Kum Kang Huh, Patel Reddy, Ayman Mohamed Fawzi El-Refaie, Patrick Lee Jansen, Roy David Schultz, Lembit Salasoo
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Patent number: 8421255Abstract: A system for determining a temperature of a permanent magnet in a machine includes a voltage sensor that generates a voltage signal reflective of a stator voltage and a current sensor that generates a current signal reflective of a stator current. A processor receives the voltage and current signals and generates a temperature signal reflective of the temperature of the permanent magnet in the machine. A method for controlling a load of a machine includes generating a voltage signal, a current signal, and a temperature signal reflective of the temperature of a permanent magnet in the machine. The method further includes adjusting the load of the machine based on the temperature signal.Type: GrantFiled: October 28, 2009Date of Patent: April 16, 2013Assignee: General Electric CompanyInventor: Patrick Lee Jansen
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Patent number: 8376708Abstract: A drivetrain for a wind turbine includes a gearbox and a generator. The gear box includes a housing and an output shaft that is rotatably coupled within the housing, wherein the gearbox further includes at least one bearing positioned between the housing and the output shaft. The generator includes a stator coupled to the housing such that the stator is positioned radially inward from the housing, and a rotor coupled to the output shaft such that the rotor is positioned radially inward from the stator.Type: GrantFiled: June 30, 2009Date of Patent: February 19, 2013Assignee: General Electric CompanyInventors: Priyangu C. Patel, Edwin Hidding, Gary R. Barnes, Patrick Lee Jansen, Adam Daniel Minadeo, Stephen B. Johnson, James H. Madge, Blake Weldon Wilson, Eric Steven Buskirk, Murtuza Lokhandwalla, Jacob Johannes Nies
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Patent number: 8358044Abstract: An electrical machine apparatus having magnetic gearing embedded therein includes a moveable rotor having a first magnetic field associated therewith, a stator configured with a plurality of stationary stator windings therein, and a magnetic flux modulator interposed between the moveable rotor and the stator windings. The magnetic flux modulator is configured to transmit torque between the first magnetic field associated with said moveable rotor and a second magnetic field excited by the plurality of stationary stator windings.Type: GrantFiled: February 14, 2006Date of Patent: January 22, 2013Assignee: General Electric CompanyInventors: Michal-Wolfgang Waszak, Jan Hemmelmann, Ronghai Qu, Patrick Lee Jansen
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Patent number: 8314529Abstract: A technique for winding multi-turn, stranded wire coils using rectangular cables avoids the risk of damage associated with edge-wise bends.Type: GrantFiled: October 22, 2008Date of Patent: November 20, 2012Assignee: General Electric CompanyInventors: Kiruba Sivasubramaniam, Patrick Lee Jansen, Gary Randall Barnes, Jessica Mary Brower, Stephen Bertram Johnson
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Patent number: 8258906Abstract: A magnetizer for magnetizing permanent magnets positioned in-situ a mechanical member is disclosed. The magnetizer comprises at least one primary superconducting coil configured to project a magnetic field flux configuration of a first type to at least a portion of a distal volume of a first type, and at least two auxiliary coils symmetrically disposed about the at least one primary superconducting coil and configured to project magnetic field flux configurations of a second type to at least a portion of a distal volume of a second type. A method of magnetizing a permanent magnet in-situ within a mechanical member is also disclosed.Type: GrantFiled: August 12, 2009Date of Patent: September 4, 2012Assignee: General Electric CompanyInventors: Kiruba Sivasubramaniam, Patrick Lee Jansen, Ernst Wolfgang Stautner
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Publication number: 20120133230Abstract: A split-pole magnetic module for use in large permanent magnet machines. The split-pole magnetic module has at least two permanent magnets positioned within a lamination stack at an angle relative to each other so that magnetic flux enters a first portion of an outer surface of the lamination stack and exits a second portion of the outer surface of the lamination stack. Consequently, little if any magnetic flux passes through, or is carried by, the support structure of a rotor or a stator.Type: ApplicationFiled: November 30, 2010Publication date: May 31, 2012Inventor: Patrick Lee JANSEN
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Patent number: 7982326Abstract: A system for controlling torque ripple in a permanent magnet synchronous machine includes a power converter configured to be coupled to the permanent magnet synchronous machine and to receive converter control signals and a system controller coupled to the power converter. The system controller includes a fundamental current controller configured for providing fundamental voltage commands, a harmonic current controller configured for using harmonic current commands, current feedback signals from the permanent magnet machine, and fundamental current commands in combination with positive and negative sequence regulators to obtain harmonic voltage commands, and summation elements configured for adding the fundamental voltage commands and the harmonic voltage commands to obtain the converter control signals.Type: GrantFiled: October 7, 2010Date of Patent: July 19, 2011Assignee: General Electric CompanyInventors: Zhuohui Tan, Xiaoming Yuan, Changyong Wang, Ronghai Qu, Robert William Delmerico, Patrick Lee Jansen
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Patent number: 7928616Abstract: A system for generating power comprising, a superconducting generator including, an armature assembly comprising, a body portion, a tooth portion having a front surface and a rear surface, a slot partially defined by the body portion and the tooth portion, an armature bar engaging the slot, and a cooling cavity partially defined by the tooth portion, communicative with the front surface and the rear surface.Type: GrantFiled: May 19, 2008Date of Patent: April 19, 2011Assignee: General Electric CompanyInventors: Kiruba Haran Sivasubramaniam, James William Bray, Patrick Lee Jansen, Evangelos Trifon Laskaris
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Publication number: 20110037545Abstract: A magnetizer for magnetizing permanent magnets positioned in-situ a mechanical member is disclosed. The magnetizer comprises at least one primary superconducting coil configured to project a magnetic field flux configuration of a first type to at least a portion of a distal volume of a first type, and at least two auxiliary coils symmetrically disposed about the at least one primary superconducting coil and configured to project magnetic field flux configurations of a second type to at least a portion of a distal volume of a second type. A method of magnetizing a permanent magnet in-situ within a mechanical member is also disclosed.Type: ApplicationFiled: August 12, 2009Publication date: February 17, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Kiruba Sivasubramaniam, Patrick Lee Jansen, Ernst Wolfgang Stautner
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Publication number: 20110018281Abstract: A system for controlling torque ripple in a permanent magnet synchronous machine includes a power converter configured to be coupled to the permanent magnet synchronous machine and to receive converter control signals and a system controller coupled to the power converter. The system controller includes a fundamental current controller configured for providing fundamental voltage commands, a harmonic current controller configured for using harmonic current commands, current feedback signals from the permanent magnet machine, and fundamental current commands in combination with positive and negative sequence regulators to obtain harmonic voltage commands, and summation elements configured for adding the fundamental voltage commands and the harmonic voltage commands to obtain the converter control signals.Type: ApplicationFiled: October 7, 2010Publication date: January 27, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Zhuohui Tan, Xiaoming Yuan, Changyong Wang, Ronghai Qu, Robert William Delmerico, Patrick Lee Jansen
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Publication number: 20100329867Abstract: A drivetrain for a wind turbine includes a gearbox and a generator. The gear box includes a housing and an output shaft that is rotatably coupled within the housing, wherein the gearbox further includes at least one bearing positioned between the housing and the output shaft. The generator includes a stator coupled to the housing such that the stator is positioned radially outward from the housing, and a rotor coupled to the output shaft such that the rotor is positioned radially inward from the stator.Type: ApplicationFiled: June 30, 2009Publication date: December 30, 2010Inventors: Priyangu C. Patel, Edwin Hidding, Gary R. Barnes, Patrick Lee Jansen, Adam Daniel Minadeo, Stephen B. Johnson, James H. Madge, Blake Weldon Wilson, Eric Steven Buskirk, Murtuza Lokhandwalla, Jacob Johannes Nies
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Patent number: 7847526Abstract: A system for controlling torque ripple in a permanent magnet synchronous machine includes a power converter configured to be coupled to the permanent magnet synchronous machine and to receive converter control signals and a system controller coupled to the power converter. The system controller includes a fundamental current controller configured for providing fundamental voltage commands, a harmonic current controller configured for using harmonic current commands, current feedback signals from the permanent magnet machine, and fundamental current commands in combination with positive and negative sequence regulators to obtain harmonic voltage commands, and summation elements configured for adding the fundamental voltage commands and the harmonic voltage commands to obtain the converter control signals.Type: GrantFiled: September 28, 2007Date of Patent: December 7, 2010Assignee: General Electric CompanyInventors: Zhuohui Tan, Xiaoming Yuan, Changyong Wang, Ronghai Qu, Robert William Delmerico, Patrick Lee Jansen
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Patent number: 7839048Abstract: A machine useful for ship propulsion purposes includes a ship propulsion motor with two concentric air gaps. In one embodiment, the machine includes a rotor with an inner rotor core and an outer rotor core; and a double-sided stator with an inner stator side and an outer stator side. The double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core.Type: GrantFiled: November 14, 2006Date of Patent: November 23, 2010Assignee: General Electric CompanyInventors: Patrick Lee Jansen, James Michael Fogarty, Ralph James Carl, Jr., James Patrick Francis Lyons, Ronghai Qu
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Patent number: 7830063Abstract: A machine useful for ship propulsion purposes include a double-sided generator or motor with two concentric air gaps. In one embodiment, the machine includes a double-sided rotor with an inner rotor side and an outer rotor side; and a stator with an inner stator core and an outer stator core, wherein the double-sided rotor is concentrically disposed between the inner stator core and the outer stator core.Type: GrantFiled: November 14, 2006Date of Patent: November 9, 2010Assignee: General Electric CompanyInventors: Patrick Lee Jansen, James Michael Fogarty, Ralph James Carl, Jr., James Patrick Francis Lyons, Ronghai Qu
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Publication number: 20100276929Abstract: A system for determining a temperature of a permanent magnet in a machine includes a voltage sensor that generates a voltage signal reflective of a stator voltage and a current sensor that generates a current signal reflective of a stator current. A processor receives the voltage and current signals and generates a temperature signal reflective of the temperature of the permanent magnet in the machine. A method for controlling a load of a machine includes generating a voltage signal, a current signal, and a temperature signal reflective of the temperature of a permanent magnet in the machine. The method further includes adjusting the load of the machine based on the temperature signal.Type: ApplicationFiled: October 28, 2009Publication date: November 4, 2010Applicant: GENERAL ELECTRIC COMPANYInventor: PATRICK LEE JANSEN