Patents by Inventor Jan Erich Hemmelmann
Jan Erich Hemmelmann 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: 11527944Abstract: A method of making a component of an electrical machine is provided. An additive manufacturing process is used to manufacture a part, including applying beams of energy to a successive plurality of ferromagnetic material particles and fusing them together to form a ring or segment of a ring with an axis, a solid portion, and laminas that extend from the solid portion in a radial or axial direction.Type: GrantFiled: December 7, 2015Date of Patent: December 13, 2022Assignee: GENERAL ELECTRIC COMPANYInventors: Anoop Jassal, Jan Erich Hemmelmann, Mohamed Osama
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Patent number: 11434877Abstract: Direct-drive wind turbines (160) are disclosed. The wind turbine comprise a generator (3) mounted on a frame (1), the generator (3) comprising a generator stator (32) and a generator rotor (31) configured to rotate about a rotation axis (RA), the frame (1) has a protruding portion (11) extending beyond the generator (3), the protruding portion (11) comprising a first structure and a second structure; wherein the first and second structures are configured to rotate relative to each other and about the rotation axis (RA); wherein the first structure is attached to the generator stator (32) and the second structure is attached to the generator rotor (31); a brake system (2) attached to the first and second structures, the brake system (2) being spaced away from the generator (3) along the rotation axis (RA). Also disclosed are methods (200) for braking a direct-drive wind turbine (160).Type: GrantFiled: July 28, 2020Date of Patent: September 6, 2022Assignee: General Electric Renovables Espana, S.L.Inventors: Jan Erich Hemmelmann, Julian Fernandez Buezas
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Publication number: 20210320572Abstract: A method of making a component of an electrical machine is provided. An additive manufacturing process is used to manufacture a part, including applying beams of energy to a successive plurality of ferromagnetic material particles and fusing them together to form a ring or segment of a ring with an axis, a solid portion, and laminas that extend from the solid portion in a radial or axial direction.Type: ApplicationFiled: December 7, 2015Publication date: October 14, 2021Applicant: GENERAL ELECTRIC COMPANYInventors: Anoop JASSAL, Jan Erich HEMMELMANN, Mohamed OSAMA
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Publication number: 20210033073Abstract: Direct-drive wind turbines (160) are disclosed. The wind turbine comprise a generator (3) mounted on a frame (1), the generator (3) comprising a generator stator (32) and a generator rotor (31) configured to rotate about a rotation axis (RA), the frame (1) has a protruding portion (11) extending beyond the generator (3), the protruding portion (11) comprising a first structure and a second structure; wherein the first and second structures are configured to rotate relative to each other and about the rotation axis (RA); wherein the first structure is attached to the generator stator (32) and the second structure is attached to the generator rotor (31); a brake system (2) attached to the first and second structures, the brake system (2) being spaced away from the generator (3) along the rotation axis (RA). Also disclosed are methods (200) for braking a direct-drive wind turbine (160).Type: ApplicationFiled: July 28, 2020Publication date: February 4, 2021Inventors: Jan Erich Hemmelmann, Julian Fernandez Buezas
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Patent number: 10193427Abstract: A method of making a component of a radial or axial flux electrical machine is provided. An additive manufacturing process is used to manufacture a plurality of laminas, including applying beams of energy to a successive plurality of ferromagnetic material particles and fusing them together to form a ferromagnetic helix or spiral, disposing an insulating material on said ferromagnetic helix or spiral, compressing the ferromagnetic helix or spiral to form a compressed ferromagnetic helix or spiral, and fixing the compressed ferromagnetic helix or spiral. A method of making a component of a transverse flux electrical machine is provided, including using an additive manufacturing process.Type: GrantFiled: December 1, 2015Date of Patent: January 29, 2019Assignee: GENERAL ELECTRIC COMPANYInventors: Anoop Jassal, Jan Erich Hemmelmann, Mohamed Osama
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Publication number: 20170155309Abstract: A method of making a component of a radial or axial flux electrical machine is provided. An additive manufacturing process is used to manufacture a plurality of laminas, including applying beams of energy to a successive plurality of ferromagnetic material particles and fusing them together to form a ferromagnetic helix or spiral, disposing an insulating material on said ferromagnetic helix or spiral, compressing the ferromagnetic helix or spiral to form a compressed ferromagnetic helix or spiral, and fixing the compressed ferromagnetic helix or spiral. A method of making a component of a transverse flux electrical machine is provided, including using an additive manufacturing process.Type: ApplicationFiled: December 1, 2015Publication date: June 1, 2017Applicant: GENERAL ELECTRIC COMPANYInventors: Anoop JASSAL, Jan Erich HEMMELMANN, Mohamed OSAMA
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Patent number: 9413217Abstract: An electromagnetic braking system of a power generation system includes an electrically conductive disc coupled to a rotatable shaft operatively coupled between a prime mover and a generator; a controller for receiving a status signal from the power generation system and for generating a control signal based on the status signal; and an inducting unit for applying an electromagnetic braking force on the electrically conductive disc when commanded by the control signal to regulate a rotational speed of the rotatable shaft.Type: GrantFiled: June 28, 2012Date of Patent: August 9, 2016Assignee: General Electric CompanyInventors: Ara Panosyan, Simon Herbert Schramm, Jan Erich Hemmelmann, Christof Martin Sihler, Francesco Papini, Xiaoting Dong, Johannes Huber
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Patent number: 8901761Abstract: A variable speed electric machine and a method for generating electric energy is provided. The electric machine includes an outer stator with a first set of field windings. Further, the electric machine includes a modulator outer rotor that is concentric and is located proximate to the outer stator. The modulator outer rotor is operatively coupled to an input shaft. Furthermore the electric machine includes a permanent magnet inner rotor concentric to the modulator outer rotor. The electric machine also includes an inner stator with a second set of field windings. The inner stator is concentric to the inner rotor and is operatively coupled to an electric grid. The outer stator, the modulator outer rotor, inner stator and the inner rotor are magnetically coupled with each other so as to maintain a constant electric frequency at the inner stator.Type: GrantFiled: February 9, 2012Date of Patent: December 2, 2014Assignee: General Electric CompanyInventors: Jan Erich Hemmelmann, Manoj Ramprasad Shah
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Patent number: 8766753Abstract: A magnetizer including at least one reconfigurable magnetic flux guide coil is disclosed. A method of magnetizing a permanent magnet in-situ a mechanical member is also disclosed.Type: GrantFiled: July 9, 2009Date of Patent: July 1, 2014Assignee: General Electric CompanyInventors: Jan Erich Hemmelmann, Michal-Wolfgang Waszak, Tiziana Bertoncelli, Alexander Felix Fiseni
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Publication number: 20140001756Abstract: An electromagnetic braking system of a power generation system includes an electrically conductive disc coupled to a rotatable shaft operatively coupled between a prime mover and a generator; a controller for receiving a status signal from the power generation system and for generating a control signal based on the status signal; and an inducting unit for applying an electromagnetic braking force on the electrically conductive disc when commanded by the control signal to regulate a rotational speed of the rotatable shaft.Type: ApplicationFiled: June 28, 2012Publication date: January 2, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Ara Panosyan, Simon Herbert Schramm, Jan Erich Hemmelmann, Christof Martin Sihler, Francesco Papini, Xiaoting Dong, Johannes Huber
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Publication number: 20130207391Abstract: A variable speed electric machine and a method for generating electric energy is provided. The electric machine includes an outer stator with a first set of field windings. Further, the electric machine includes a modulator outer rotor that is concentric and is located proximate to the outer stator. The modulator outer rotor is operatively coupled to an input shaft. Furthermore the electric machine includes a permanent magnet inner rotor concentric to the modulator outer rotor. The electric machine also includes an inner stator with a second set of field windings. The inner stator is concentric to the inner rotor and is operatively coupled to an electric grid. The outer stator, the modulator outer rotor, inner stator and the inner rotor are magnetically coupled with each other so as to maintain a constant electric frequency at the inner stator.Type: ApplicationFiled: February 9, 2012Publication date: August 15, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Jan Erich Hemmelmann, Manoj Ramprasad Shah
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Publication number: 20130099503Abstract: An electrical machine stator is disclosed that includes a stack of laminations configured to be assembled together so as to define at least one stator tooth. Each lamination may include an inner edge, an outer edge and first and second side edges extending at least partially between the inner and outer edges so as to define at least a portion of the at least one tooth. Additionally, each lamination may define a nesting feature between the first and second side edges, wherein the nesting feature of each lamination is engaged against the nesting feature of an adjacent lamination when the stack of laminations is assembled together.Type: ApplicationFiled: October 25, 2011Publication date: April 25, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Bharat Bagepalli, Robert Michael Zirin, Randy Scott Longtin, Kiruba Sivasubramaniam Haran, Jan Erich Hemmelmann, Francesco Papini, Alexander Fiseni
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Patent number: 8319365Abstract: A system to provide constant speed mechanical output in a wind turbine is provided. The system includes at least one electrical machine configured to convert a rotary mechanical power received from a main gear to a machine electrical power. The system further includes one or more electrical converters electrically coupled to the machine and configured to convert the machine electrical power from a direct current (DC) power to an alternate current (AC) power or from the alternate current (AC) power to the direct current (DC) power, where the converters generate a differential electrical power. A torque converter is electrically coupled to the electrical converters and generates a constant speed mechanical output employing the differential electrical power received from the one or more electrical converters.Type: GrantFiled: December 17, 2010Date of Patent: November 27, 2012Assignee: General Electric CompanyInventors: Jan Erich Hemmelmann, Michal-Wolfgang Waszak
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Patent number: 8226354Abstract: A foundation for supporting a structure is provided. The foundation includes a foundation body, at least one anchor bolt connecting a lower anchor plate and the structure, a magnetostrictive load measuring sensor for measuring loads on the at least one anchor bolt, the magnetostrictive load measuring sensor being positioned within the foundation body.Type: GrantFiled: December 26, 2007Date of Patent: July 24, 2012Assignee: General Electric CompanyInventors: Jacob Johannes Nies, Jan Erich Hemmelmann, Christof Martin Sihler
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Publication number: 20120025527Abstract: A system to provide constant speed mechanical output in a wind turbine is provided. The system includes at least one electrical machine configured to convert a rotary mechanical power received from a main gear to a machine electrical power. The system further includes one or more electrical converters electrically coupled to the machine and configured to convert the machine electrical power from a direct current (DC) power to an alternate current (AC) power or from the alternate current (AC) power to the direct current (DC) power, where the converters generate a differential electrical power. A torque converter is electrically coupled to the electrical converters and generates a constant speed mechanical output employing the differential electrical power received from the one or more electrical converters.Type: ApplicationFiled: December 17, 2010Publication date: February 2, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Jan Erich Hemmelmann, Michal-Wolfgang Waszak
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Patent number: 8074450Abstract: The invention relates to a wind energy system with hydraulic energy transmission with non-symmetric actuation. The non-symmetric actuation is caused by valve control and mechanical means for controlling the actuation of the pistons. A cylinder unit is provided comprising a drive unit and an output unit associated with two hydraulic connections. The drive and the output unit comprise a minimum of two cylinders, in which pistons are reciprocating. Some of the cylinders can be switched off during low wind speeds. The cylinders communicate with a low pressure manifold and a high pressure manifold. These manifolds are part of the hydraulic connections. Use of the fluid-working machine as transmission in wind energy systems increases the overall economical efficiency.Type: GrantFiled: August 13, 2008Date of Patent: December 13, 2011Assignee: General Electric CompanyInventors: Jacob Johannes Nies, Jan Erich Hemmelmann
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Patent number: 8041225Abstract: An apparatus for enabling transmission of signals and data via means of infrared (IR) light for a wind turbine includes a plurality of IR data communication elements configured to provide unidirectional and bidirectional IR data exchange between non-rotating portions of the wind turbine and the rotatable wind turbine hub.Type: GrantFiled: December 21, 2009Date of Patent: October 18, 2011Assignee: General Electric CompanyInventors: Jan Erich Hemmelmann, Stefan Brandhoff, Alexander Felix Fiseni
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Patent number: 8020455Abstract: A magnetostrictive measurement system having one or more encoded polarized magnetic regions disposed circumferentially about a shaft, wherein adjacent magnetic regions along a section of the shaft have opposing polarities. In one embodiment the shaft is hollow and the encodings are interiorly disposed while in another embodiment the encodings are on the exterior surface of the shaft. There are one or more sensors, such as contact sensors, disposed about the shaft wherein the sensors enable measurements of at least one of bending moments or torque sensing. The sensors can also include non-contact sensors measuring the magnetic flux densities caused by the alternating magnetic fields from the rotating shaft. A processing section is used to process the sensor measurements, wherein the sensor measurements are used to compute at least one of shaft power, torque, speed, and bending moments.Type: GrantFiled: January 30, 2009Date of Patent: September 20, 2011Assignee: General Electric CompanyInventors: Christof Martin Sihler, Jan Erich Hemmelmann, Simon Schramm
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Publication number: 20110150497Abstract: An apparatus for enabling transmission of signals and data via means of infrared (IR) light for a wind turbine includes a plurality of IR data communication elements configured to provide unidirectional and bidirectional IR data exchange between non-rotating portions of the wind turbine and the rotatable wind turbine hub.Type: ApplicationFiled: December 21, 2009Publication date: June 23, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Jan Erich Hemmelmann, Stefan Brandhoff, Alexander Felix Fiseni
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Publication number: 20110006865Abstract: A magnetizer including at least one reconfigurable magnetic flux guide coil is disclosed. A method of magnetizing a permanent magnet in-situ a mechanical member is also disclosed.Type: ApplicationFiled: July 9, 2009Publication date: January 13, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Jan Erich Hemmelmann, Michal-Wolfgang Waszak, Tiziana Bertoncelli, Alexander Felix Fiseni