Patents by Inventor Lorenzo Mazza
Lorenzo Mazza 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: 11955843Abstract: The present disclosure relates to a motor. The motor can include a stator defining an interior space, a rotor disposed in the interior space of the stator. The rotor can include a body defining a structure and a plurality of magnets disposed in the plurality of cavities. In some embodiments, the structure defines a plurality of cavities in the body of the rotor, the plurality of cavities includes at least a first cavity and a second cavity, the first cavity is spaced radially outward from the second cavity, and a thickness of the first cavity is larger than a thickness of the second cavity. In some embodiments, at least some of the cavities of the plurality of cavities have a magnet from the plurality of magnets disposed therein.Type: GrantFiled: December 22, 2021Date of Patent: April 9, 2024Assignee: ABB SCHWEIZ AGInventors: Darren Tremelling, Elio Perigo, Sheng Zhong, Lorenzo Mazza, Matthew Hoffman
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Publication number: 20230327583Abstract: A system for controlling plurality of synchronous motors connected in parallel including a motor drive, current sensor, and plurality of synchronous motors connected in parallel to the motor drive. The synchronous motors connected to the motor drive can include the same size and power rating to allow synchronous operation and have similar load capacity. Further, the system can operate with substantially similar loads on each of the plurality of synchronous motors. The motor drive can be a variable speed drive using vector control and a closed loop current controller to control the motors. The motor drive can be a variable frequency drive using scalar control and open loop controller to control the motors. The motor drive controls the plurality of synchronous motors by maintaining net active power and net active power, and by rejecting power perturbations, at the common node.Type: ApplicationFiled: April 8, 2022Publication date: October 12, 2023Inventors: Lorenzo Mazza, Zubair Ali, Toni Tuovinen, Brian Pisani
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Publication number: 20230198322Abstract: The present disclosure relates to a motor. The motor can include a stator defining an interior space, a rotor disposed in the interior space of the stator. The rotor can include a body defining a structure and a plurality of magnets disposed in the plurality of cavities. In some embodiments, the structure defines a plurality of cavities in the body of the rotor, the plurality of cavities includes at least a first cavity and a second cavity, the first cavity is spaced radially outward from the second cavity, and a thickness of the first cavity is larger than a thickness of the second cavity. In some embodiments, at least some of the cavities of the plurality of cavities have a magnet from the plurality of magnets disposed therein.Type: ApplicationFiled: December 22, 2021Publication date: June 22, 2023Inventors: Darren Tremelling, Elio Perigo, Sheng Zhong, Lorenzo Mazza, Matthew Hoffman
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Patent number: 10903776Abstract: An industrial electrical machine includes a stator; a rotor in magnetic communication with the stator; a plurality of windings disposed in the rotor and/or the stator; and an embedded solid state controller. The solid state controller is operative to control the operation of the industrial electrical machine. The solid state controller includes a power semiconductor switching device coupled to the plurality of windings, and includes a communication interface. The power semiconductor switching device is operative to provide switching during operation of the industrial electrical machine, and is operative to turn the electrical machine on and to turn the electrical machine off in response to a control input received by the communication interface.Type: GrantFiled: May 31, 2017Date of Patent: January 26, 2021Assignee: ABB Schweiz AGInventors: Pietro Cairoli, Lorenzo Mazza, Zhiguo Pan
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Patent number: 10673311Abstract: An electrical motor is provided to reduce torque ripple. Torque ripple is a variation in torque output as the rotor rotates. The motor has a stator and a rotor. The stator slots are used for windings. The rotor slots define a plurality of poles. The number of slots in the stator are equal to the number of slots in the rotor.Type: GrantFiled: August 22, 2017Date of Patent: June 2, 2020Assignee: ABB Schweiz AGInventors: Lorenzo Mazza, Rajib Mikail
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Patent number: 10476328Abstract: A rotor for an electric motor is provided. The rotor is constructed of a stack of first and second laminations. The laminations include segments and insulated regions between the segments. The first laminations include interconnections such that the first laminations are self-supporting. The second laminations are affixed to the first laminations to support the segments of the second laminations.Type: GrantFiled: May 30, 2017Date of Patent: November 12, 2019Assignee: ABB Schweiz AGInventors: Lorenzo Mazza, Alessandro Castagnini, Giulio Secondo
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Publication number: 20190068036Abstract: An electrical motor is provided to reduce torque ripple. Torque ripple is a variation in torque output as the rotor rotates. The motor has a stator and a rotor. The stator slots are used for windings. The rotor slots define a plurality of poles. The number of slots in the stator are equal to the number of slots in the rotor.Type: ApplicationFiled: August 22, 2017Publication date: February 28, 2019Inventors: Lorenzo Mazza, Rajib Mikail
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Publication number: 20180351424Abstract: A rotor for an electric motor is provided. The rotor is constructed of a stack of first and second laminations. The laminations include segments and insulated regions between the segments. The first laminations include interconnections such that the first laminations are self-supporting. The second laminations are affixed to the first laminations to support the segments of the second laminations.Type: ApplicationFiled: May 30, 2017Publication date: December 6, 2018Inventors: Lorenzo Mazza, Alessandro Castagnini, Giulio Secondo
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Publication number: 20180351438Abstract: An industrial electrical machine includes a stator; a rotor in magnetic communication with the stator; a plurality of windings disposed in the rotor and/or the stator; and an embedded solid state controller. The solid state controller is operative to control the operation of the industrial electrical machine. The solid state controller includes a power semiconductor switching device coupled to the plurality of windings, and includes a communication interface. The power semiconductor switching device is operative to provide switching during operation of the industrial electrical machine, and is operative to turn the electrical machine on and to turn the electrical machine off in response to a control input received by the communication interface.Type: ApplicationFiled: May 31, 2017Publication date: December 6, 2018Inventors: Pietro Cairoli, Lorenzo Mazza, Zhiguo Pan
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Patent number: 9343930Abstract: A stator has a plurality of segments connected with connectors to define a core for the stator. Each of the segments comprises a plurality of laminations arranged side by side forming a lamination stack with axially opposite sides. The lamination stack has an end cap abutting an axial side of the lamination stack. The end cap has first and second posts extending axially therefrom. At least one of the posts defines a wire path for wire wound around the stack. Each of the connectors comprises a bridge portion. The bridge portion has openings dimensioned to receive the posts in a manner that the connector is removably attachable to the post of the end cap of a segment and the post of the end cap of an adjacent segment. The connector has an insulator portion projecting from the bridge portion. The insulator portion extends between adjacent segments.Type: GrantFiled: May 15, 2013Date of Patent: May 17, 2016Assignee: Baldor Electric CompanyInventors: Matthew D. Hoffman, Robert J. Mantey, Douglas H. Sudhoff, Lorenzo Mazza, Bryan L. Paxton, Jeffrey L. Davis, Daniel Scott Dorsch
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Publication number: 20130313921Abstract: A stator has a plurality of segments connected with connectors to define a core for the stator. Each of the segments comprises a plurality of laminations arranged side by side forming a lamination stack with axially opposite sides. The lamination stack has an end cap abutting an axial side of the lamination stack. The end cap has first and second posts extending axially therefrom. At least one of the posts defining a wire path for wire wound around the stack. Each of the connectors comprises a bridge portion. The bridge portion has openings dimensioned to receive the posts in a manner that the connector is removably attachable to the post of the end cap of a segment and the post of the end cap of an adjacent segment. The connector has an insulator portion projecting from the bridge portion. The insulator portion extends between adjacent segments when the connector is removably attached to adjacent segments.Type: ApplicationFiled: May 15, 2013Publication date: November 28, 2013Applicant: Baldor Electric CompanyInventors: Matthew D. Hoffman, Robert J. Mantey, Douglas H. Sudhoff, Lorenzo Mazza, Bryan L. Paxton, Jeffrey L. Davis, Daniel Scott Dorsch