Patents Assigned to Jacobi Motors LLC
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Publication number: 20250260281Abstract: A rotor of a synchronous motor includes a rotor core connected to a shaft, a set of magnets configured to be operably magnetizable and de-magnetizable, and one or more pairs of wedges extending from the rotor core. Each wedge of the one or more pairs of wedges has a proximal end thereof connected to a subset of magnets from the set of magnets. Each wedge of the one or more pairs of wedges is connected by a corresponding rib.Type: ApplicationFiled: February 8, 2024Publication date: August 14, 2025Applicant: Jacobi Motors, LLCInventors: Ahmed Salah Morsy, Chaitanya Kumar Ravipalli, Pierre-Olivier Gourmelon, Nathan Rukavina, Faustino Villarreal-Blozis
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Publication number: 20250167653Abstract: A method of changing a magnetic flux density in an air gap between a stator and a rotor in a real-time flux-mnemonic permanent magnet synchronous machine comprising permanent magnets, the method comprising applying at least one current pulse to adjust a magnetic operating point of the magnets, wherein the at least one current pulse has a duration of less than 3 ms. For applying the at least one current pulses, the method comprises consecutively applying a plurality of primitive pulses.Type: ApplicationFiled: January 21, 2025Publication date: May 22, 2025Applicant: Jacobi Motors, LLCInventors: Nicolaus Radford, Mohammadreza Barzegaranbaboli, Ahmed Morsy
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Publication number: 20250153586Abstract: An integrated synchronous motor charger includes a battery, and a synchronous motor having a set of phase windings, with each phase winding thereof having an open-ended winding configuration, the synchronous motor being electrically connected to the battery via a bidirectional inverter on a first end of at least one phase winding from the set of phase windings, and to a power source on a second end of the at least one phase winding. The synchronous motor is operably shiftable between a charging mode and a driving mode, the synchronous motor allowing electric power to flow bidirectionally between the power source and the battery in the charging mode, and allowing electric power to flow bidirectionally between the battery and the synchronous motor in the driving mode.Type: ApplicationFiled: November 9, 2023Publication date: May 15, 2025Applicant: Jacobi Motors, LLCInventors: Ahmed Morsy, Brian Wightman
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Patent number: 12126297Abstract: A method for magnetizing a soft magnet in a rotor of a variable-flux memory motor (VFMM) includes: generating a first pulse of electric current that has a duration of equal to or more than 0.1 millisecond (ms) and equal to or less than 2 ms; and applying the first pulse to a stator winding of the VFMM to set a magnetization state of the soft magnet to a first magnetization state.Type: GrantFiled: October 23, 2020Date of Patent: October 22, 2024Assignee: Jacobi Motors LLCInventors: Nicolaus Radford, Mohammadreza Barzegaranbaboli
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Publication number: 20240186874Abstract: A method of changing a magnetic flux density in an air gap between a stator and a rotor in a real-time flux-mnemonic permanent magnet synchronous machine comprising permanent magnets, the method comprising applying at least one current pulse to adjust a magnetic operating point of the magnets, wherein the at least one current pulse has a duration of less than 3 ms. For applying the at least one current pulses, the method comprises consecutively applying a plurality of primitive pulses.Type: ApplicationFiled: February 13, 2024Publication date: June 6, 2024Applicant: Jacobi Motors, LLCInventors: Nicolaus Radford, Mohammadreza Barzegaranbaboli, Ahmed Morsy
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Patent number: 11996739Abstract: A multi-pole rotor of a variable-flux memory motor (VFMM) includes: a plurality of poles. Each pole includes: a curved soft magnet, wherein an outer periphery of the curved soft magnet is toward the rotational axis of the rotor; a first non-magnetic and non-conductive material disposed on the outer periphery of the curved soft magnet; and a second non-magnetic and non-conductive material disposed on an inner periphery of the curved soft magnet.Type: GrantFiled: January 11, 2021Date of Patent: May 28, 2024Assignee: Jacobi Motors LLCInventors: Nicolaus Radford, Mohammadreza Barzegaranbaboli
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Publication number: 20240146226Abstract: A system for shifting operation modes of Variable Flux Memory Motor (VFMM) from external inputs includes one or more VFMMs that convert electrical power to kinetic energy, the one or more VFMMs being configured to shift to any one of a plurality of operation modes, one or more man-machine interfaces that receive one or more external inputs from a user, the one or more external inputs being indicative of a target operation mode from the plurality of operation modes selected by the user, and a controller that shifts the operation mode of the one or more VFMMs to the target operation mode based on the one or more external inputs received from the one or more man-machine interfaces.Type: ApplicationFiled: October 26, 2023Publication date: May 2, 2024Applicant: Jacobi Motors, LLCInventors: Nicolaus Adam Radford, Iain Cooper, Pierre-Olivier Gourmelon, John Parry
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Patent number: 11936256Abstract: A flux-mnemonic permanent magnet synchronous machine (FMPMSM) includes: an annular stator having a winding; a rotor disposed concentric with the stator; and a power inverter for dispensing an excitation current and at least one current pulse. The rotor includes: at least two circumferentially magnetized adjustable permanent magnets, each permanent magnet having two poles normal to an air gap between the stator and rotor; and one or more flux adjusters adjacent to one or more magnet poles of the permanent magnets. A polarization ratio of magnetization of at least one of the permanent magnets is adjustable during operation of the FMPMSM by application of the at least one current pulse.Type: GrantFiled: April 22, 2021Date of Patent: March 19, 2024Assignee: Jacobi Motors, LLCInventors: Nicolaus Radford, Mohammadreza Barzegaranbaboli, Ahmed Morsy
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Publication number: 20230238865Abstract: A variable axial flux motor (VAFL) includes: a stator; and a first rotor part. The stator is disposed next to the first rotor part, along a rotational axis of the VAFL. A pole of the first rotor part includes: a first hard magnet; a first soft magnet; and a first ferrous part.Type: ApplicationFiled: January 20, 2023Publication date: July 27, 2023Applicant: Jacobi Motors LLCInventor: Mohammadreza Barzegaranbaboli
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Publication number: 20220407374Abstract: A multi-pole rotor of a variable-flux memory motor (VFMM) includes: a plurality of poles. Each pole includes: a curved soft magnet, wherein an outer periphery of the curved soft magnet is toward the rotational axis of the rotor; a first non-magnetic and non-conductive material disposed on the outer periphery of the curved soft magnet; and a second non-magnetic and non-conductive material disposed on an inner periphery of the curved soft magnet.Type: ApplicationFiled: January 11, 2021Publication date: December 22, 2022Applicant: Jacobi Motors LLCInventors: Nicolaus Radford, Mohammadreza Barzegaranbaboli
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Publication number: 20220376638Abstract: A method for magnetizing a soft magnet in a rotor of a variable-flux memory motor (VFMM) includes: generating a first pulse of electric current that has a duration of equal to or more than 0.1 millisecond (ms) and equal to or less than 2 ms; and applying the first pulse to a stator winding of the VFMM to set a magnetization state of the soft magnet to a first magnetization state.Type: ApplicationFiled: October 23, 2020Publication date: November 24, 2022Applicant: Jacobi Motors LLCInventors: Nicolaus Radford, Mohammadreza Barzegaranbaboli
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Publication number: 20210336519Abstract: A flux-mnemonic permanent magnet synchronous machine (FMPMSM) includes: an annular stator having a winding; a rotor disposed concentric with the stator; and a power inverter for dispensing an excitation current and at least one current pulse. The rotor includes: at least two circumferentially magnetized adjustable permanent magnets, each permanent magnet having two poles normal to an air gap between the stator and rotor; and one or more flux adjusters adjacent to one or more magnet poles of the permanent magnets. A polarization ratio of magnetization of at least one of the permanent magnets is adjustable during operation of the FMPMSM by application of the at least one current pulse.Type: ApplicationFiled: April 22, 2021Publication date: October 28, 2021Applicant: Jacobi Motors LLCInventors: Nicolaus Radford, Mohammadreza Barzegaranbaboli, Ahmed Morsy
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Patent number: 10848014Abstract: In one aspect, embodiments of the invention are directed to a multi-pole rotor of a variable-flux memory motor (VFMM) that includes: a rotor core; and a plurality of poles. Each of the poles includes: one or more soft rotor magnets; a first ferrous wedge; and a second ferrous wedge. The one or more soft rotor magnets are disposed between the first and second ferrous wedges in a circumferential direction of the rotor.Type: GrantFiled: April 12, 2019Date of Patent: November 24, 2020Assignee: Jacobi Motors LLCInventors: Nicolaus Radford, Mohammadreza Barzegaranbaboli, Akhila Bachapalli, Takashi Nakachi, Chaitanya Ravipalli, Brian Wightman, Shriya Bhatnagar
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Publication number: 20200328632Abstract: In one aspect, embodiments of the invention are directed to a multi-pole rotor of a variable-flux memory motor (VFMM) that includes: a rotor core; and a plurality of poles. Each of the poles includes: one or more soft rotor magnets; a first ferrous wedge; and a second ferrous wedge. The one or more soft rotor magnets are disposed between the first and second ferrous wedges in a circumferential direction of the rotor.Type: ApplicationFiled: April 12, 2019Publication date: October 15, 2020Applicant: Jacobi Motors LLCInventors: Nicolaus Radford, Mohammadreza Barzegaranbaboli, Akhila Bachapalli, Takashi Nakachi, Chaitanya Ravipalli, Brian Wightman, Shriya Bhatnagar
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Patent number: 10790712Abstract: In one aspect, embodiments of the invention are directed to a multi-pole rotor of a variable-flux memory motor (VFMM) that includes: a rotor core; and a plurality of poles. Each of the poles includes: one or more soft rotor magnets; a first ferrous wedge; and a second ferrous wedge. The one or more soft rotor magnets are disposed between the first and second ferrous wedges in a circumferential direction of the rotor.Type: GrantFiled: April 12, 2019Date of Patent: September 29, 2020Assignee: Jacobi Motors LLCInventors: Nicolaus Radford, Mohammadreza Barzegaranbaboli, Akhila Bachapalli, Takashi Nakachi, Chaitanya Ravipalli, Brian Wightman, Shriya Bhatnagar