Patents by Inventor Andrzej M. Trzynadlowski
Andrzej M. Trzynadlowski 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: 8120224Abstract: A permanent-magnet switched-flux (PMSF) device has an outer rotor mounted to a shaft about a central axis extending axially through the PMSF device. First and second pluralities of permanent-magnets (PMs) are respectively mounted in first and second circles, radially outwardly in first and second transverse planes extending from first and second sections of the central axis adjacent to an inner surface of the outer rotor. An inner stator is coupled to the shaft and has i) a stator core having a core axis co-axial with the central axis; and ii) first and second pluralities of stator poles mounted in first and second circles, radially outwardly from the stator core axis in the first and second transverse planes. The first and second pluralities of PMs each include PMs of alternating polarity.Type: GrantFiled: May 26, 2011Date of Patent: February 21, 2012Assignee: Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada, RenoInventors: Andrzej M. Trzynadlowski, Ling Qin
-
Publication number: 20110254401Abstract: A permanent-magnet switched-flux (PMSF) device has an outer rotor mounted to a shaft about a central axis extending axially through the PMSF device. First and second pluralities of permanent-magnets (PMs) are respectively mounted in first and second circles, radially outwardly in first and second transverse planes extending from first and second sections of the central axis adjacent to an inner surface of the outer rotor. An inner stator is coupled to the shaft and has i) a stator core having a core axis co-axial with the central axis; and ii) first and second pluralities of stator poles mounted in first and second circles, radially outwardly from the stator core axis in the first and second transverse planes. The first and second pluralities of PMs each include PMs of alternating polarity.Type: ApplicationFiled: May 26, 2011Publication date: October 20, 2011Applicant: Board of Regents of the Nevada System of Higher Education on Behalf of the University of NevadaInventors: Andrzej M. Trzynadlowski, Ling Qin
-
Patent number: 7960887Abstract: A permanent-magnet switched-flux (PMSF) device has an outer rotor mounted to a shaft about a central axis extending axially through the PMSF device. First and second pluralities of permanent-magnets (PMs) are respectively mounted in first and second circles, radially outwardly in first and second transverse planes extending from first and second sections of the central axis adjacent to an inner surface of the outer rotor. An inner stator is coupled to the shaft and has i) a stator core having a core axis co-axial with the central axis; and ii) first and second pluralities of stator poles mounted in first and second circles, radially outwardly from the stator core axis in the first and second transverse planes. The first and second pluralities of PMs each include PMs of alternating polarity.Type: GrantFiled: January 12, 2010Date of Patent: June 14, 2011Assignee: Board of regents of the Nevada System of Higher EducationInventors: Andrzej M. Trzynadlowski, Ling Qin
-
Publication number: 20110018383Abstract: A permanent-magnet switched-flux (PMSF) device has an outer rotor mounted to a shaft about a central axis extending axially through the PMSF device. First and second pluralities of permanent-magnets (PMs) are respectively mounted in first and second circles, radially outwardly in first and second transverse planes extending from first and second sections of the central axis adjacent to an inner surface of the outer rotor. An inner stator is coupled to the shaft and has i) a stator core having a core axis co-axial with the central axis; and ii) first and second pluralities of stator poles mounted in first and second circles, radially outwardly from the stator core axis in the first and second transverse planes. The first and second pluralities of PMs each include PMs of alternating polarity.Type: ApplicationFiled: January 12, 2010Publication date: January 27, 2011Applicant: Board of Regents of the Nevada System of Higher Education on Behalf of the University of Nevada,Inventors: Andrzej M. Trzynadlowski, Ling Qin
-
Patent number: 7646126Abstract: A permanent-magnet switched-flux (PMSF) device has a ferromagnetic outer stator mounted to a shaft about a central axis extending axially through the PMSF device. Pluralities of top and bottom stator poles are respectively mounted in first and second circles, radially outwardly in first and second transverse planes extending from first and second sections of the central axis adjacent to an inner surface of the ferromagnetic outer stator. A ferromagnetic inner rotor is coupled to the shaft and has i) a rotor core having a core axis co-axial with the central axis; and ii) first and second discs having respective outer edges with first and second pluralities of permanent magnets (PMs) mounted in first and second circles, radially outwardly from the rotor core axis in the first and second transverse planes. The first and second pluralities of PMs each include PMs of alternating polarity.Type: GrantFiled: June 9, 2008Date of Patent: January 12, 2010Assignee: Board of Regents of the Nevada System of Higher Education on Behalf of the University of Nevada, RenoInventors: Andrzej M. Trzynadlowski, Ling Qin
-
Publication number: 20090015089Abstract: A permanent-magnet switched-flux (PMSF) device has a ferromagnetic outer stator mounted to a shaft about a central axis extending axially through the PMSF device. Pluralities of top and bottom stator poles are respectively mounted in first and second circles, radially outwardly in first and second transverse planes extending from first and second sections of the central axis adjacent to an inner surface of the ferromagnetic outer stator. A ferromagnetic inner rotor is coupled to the shaft and has i) a rotor core having a core axis co-axial with the central axis; and ii) first and second discs having respective outer edges with first and second pluralities of permanent magnets (PMs) mounted in first and second circles, radially outwardly from the rotor core axis in the first and second transverse planes. The first and second pluralities of PMs each include PMs of alternating polarity.Type: ApplicationFiled: June 9, 2008Publication date: January 15, 2009Applicant: University of Nevada RenoInventors: Andrzej M. Trzynadlowski, Ling Qin
-
Patent number: 7385330Abstract: A permanent-magnet switched-flux (PMSF) apparatus comprises a plurality of permanent-magnet switched-flux (PMSF) devices, wherein each of the plurality of PMSF devices comprises a ferromagnetic outer rotor coupled to a shaft, wherein the ferromagnetic outer rotor comprises a plurality of permanent-magnets coupled to an inner surface of the ferromagnetic outer rotor, an inner stator rotatably disposed in the ferromagnetic outer rotor, wherein the inner stator comprises a stator core and multiple serrated edges forming multiple stator poles distal from the stator core, wherein the multiple stator poles are configured to interface with the plurality of permanent-magnets, and a coil disposed on the stator core between the multiple stator poles, wherein the coil is coupled to the plurality of permanent-magnets, wherein a magnetic flux of the plurality of permanent-magnets is operable to pass through the coil, and wherein the magnetic flux is configured to switch to an opposite direction in response to a rotation oType: GrantFiled: February 27, 2007Date of Patent: June 10, 2008Assignee: Board of Regents of the Nevada System of Higher Education on Behalf of the University of Nevada, RenoInventors: Andrzej M. Trzynadlowski, Ling Qin
-
Patent number: 6600669Abstract: A system and method for executing random pulse width modulation in electronic power converters. In accordance with this invention, the sampling period of sampling cycles for pulse width modulation remains constant while the period of switching cycles are varied. The periods of switching cycles are varied using random numbers to calculate delays between the start of coincident sampling and switching cycles.Type: GrantFiled: June 25, 2002Date of Patent: July 29, 2003Assignee: The Board of Regents of the University and Community College System of Nevada, on behalf of the University of Nevada at RenoInventors: Andrzej M. Trzynadlowski, Bin Huo
-
Publication number: 20030002299Abstract: A system and method for executing random pulse width modulation in electronic power converters. In accordance with this invention, the sampling period of sampling cycles for pulse width modulation remains constant while the period of switching cycles are varied. The periods of switching cycles are varied using random numbers to calculate delays between the start of coincident sampling and switching cycles.Type: ApplicationFiled: June 25, 2002Publication date: January 2, 2003Applicant: University of Nevada at Reno, a Nevada CorporationInventors: Andrzej M. Trzynadlowski, Bin Huo