Patents by Inventor István Király
István Király 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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Publication number: 20240014702Abstract: The present disclosure relates to a rotor for an electric machine. The rotor has a plurality of rotor poles each having at least one aperture. The at least one aperture includes a chamber for receiving a magnet; and at least one flux barrier for controlling the path through which magnetic flux flows in the rotor. The rotor poles each have at least one flux guide for guiding magnetic flux across the at least one flux barrier during a demagnetization event. The flux guide(s) form a constriction between the magnet receiving chamber and the flux barrier. The present disclosure also relates to an electric machine comprising a rotor; and a vehicle comprising an electric machine.Type: ApplicationFiled: November 3, 2021Publication date: January 11, 2024Inventors: Tiago CESA, Muhammed Fasil PALAKKUNNU VEETTIL, Istvan KIRALY
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Patent number: 11757316Abstract: An electrical machine comprises a stator and a rotor having a plurality of poles. Each pole comprises a radial axis centrally through the pole. Each pole comprises a first slot configuration having a magnet located centrally within the slot with the radial axis passing through the magnet or the magnet being substantially perpendicular to the radial axis. Each pole comprises a second slot configuration having a pair of magnets located at spaced apart positions within the slot. The pair of magnets are located each side of the radial axis. The first slot configuration is located between the second slot configuration and an outer perimeter of the rotor.Type: GrantFiled: December 7, 2021Date of Patent: September 12, 2023Assignee: JAGUAR LAND ROVER LIMITEDInventors: Alexandros Michaelides, Istvan Kiraly, Jose Malumbres Ruiz, Bonyadi Roozbeh
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Publication number: 20230253841Abstract: Aspects of the present invention relate to a rotor assembly (3) for an electric machine (1). The rotor assembly (3) includes a rotor (6). A plurality of permanent magnets (10) are mounted in respective magnet mounting apertures (11) formed in the rotor (6). The permanent magnets (10) each have first and second ends (15A, 15B). The rotor (6) has a plurality of circumferential rotor sections (20-n) formed between one or more of the magnet mounting apertures (11) and an outer circumference (C1) of the rotor (6). The circumferential rotor sections (20-n) each have at least one demagnetization protection barrier (21) for controlling a magnetic field applied to an associated one of the permanent magnets (10) during a demagnetization event. The present invention also relates to a rotor (6); and an electric machine (1) having a rotor assembly (3). The electric machine (1) is suitable for use in an electric drive unit for a vehicle (1).Type: ApplicationFiled: June 25, 2021Publication date: August 10, 2023Inventors: Istvan KIRALY, Tiago CESA
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Publication number: 20220166274Abstract: An electrical machine comprises a stator and a rotor having a plurality of poles. Each pole comprises a radial axis centrally through the pole. Each pole comprises a first slot configuration having a magnet located centrally within the slot with the radial axis passing through the magnet or the magnet being substantially perpendicular to the radial axis. Each pole comprises a second slot configuration having a pair of magnets located at spaced apart positions within the slot. The pair of magnets are located each side of the radial axis. The first slot configuration is located between the second slot configuration and an outer perimeter of the rotor.Type: ApplicationFiled: December 7, 2021Publication date: May 26, 2022Inventors: Alexandros MICHAELIDES, Istvan KIRALY, Jose MALUMBRES RUIZ, Bonyadi ROOZBEH
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Patent number: 11223250Abstract: An electrical machine (1) comprises a stator (20) and a rotor (10) having a plurality of poles (4). A pole comprises a radial axis (5) centrally through the pole. A pole comprises a first slot configuration (12, 13) having a magnet (15, 16) located centrally within the slot with the radial axis (5) passing through the magnet (15, 16) or the magnet being substantially perpendicular to the radial axis. A pole comprises a second slot configuration (11) having a pair of magnets (14-1, 14-2) located at spaced apart positions within the slot. The pair of magnets (14-1, 14-2) are located each side of the radial axis (5). The first slot configuration (12, 13) is located between the second slot configuration (11) and an outer perimeter (19) of the rotor (10).Type: GrantFiled: June 15, 2017Date of Patent: January 11, 2022Assignee: Jaguar Land Rover LimitedInventors: Alexandros Michaelides, Istvan Kiraly, Jose Malumbres Ruiz, Bonyadi Roozbeh
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Patent number: 10778054Abstract: The present disclosure relates to an electric drive motor (101; 201) for a vehicle. The electric drive motor (101; 201) has a stator (103) having a plurality of slots (107); and a rotor (102; 202) having a plurality of poles (106; 206). The poles (106; 206) each have at least a first permanent magnet (104; 204) centred on a d-axis of the pole (106; 206); and a plurality of flux barriers (109; 209) for disrupting at least an n-th order torque harmonic of the electric drive motor (101). Proximal to an outer surface of the rotor (102; 202), a first angular period (x11) between first and secondary flux barriers is defined by the equation (xi1=tao/n1), whereby: (xi1) is the first angular period; (tao) is the pole step; and n1 is an order number of a torque harmonic to be disrupted.Type: GrantFiled: June 8, 2016Date of Patent: September 15, 2020Assignee: JAGUAR LAND ROVER LIMITEDInventors: Jose Soler, Alexandros Michaelides, Istvan Kiraly
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Publication number: 20190165627Abstract: An electrical machine (1) comprises a stator (20) and a rotor (10) having a plurality of poles (4). A pole comprises a radial axis (5) centrally through the pole. A pole comprises a first slot configuration (12, 13) having a magnet (15, 16) located centrally within the slot with the radial axis (5) passing through the magnet (15, 16) or the magnet being substantially perpendicular to the radial axis. A pole comprises a second slot configuration (11) having a pair of magnets (14-1, 14-2) located at spaced apart positions within the slot. The pair of magnets (14-1, 14-2) are located each side of the radial axis (5). The first slot configuration (12, 13) is located between the second slot configuration (11) and an outer perimeter (19) of the rotor (10).Type: ApplicationFiled: June 15, 2017Publication date: May 30, 2019Applicant: Jaguar Land Rover LimitedInventors: Alexandros MICHAELIDES, Istvan KIRALY, Jose MALUMBRES RUIZ, Bonyadi ROOZBEH
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Publication number: 20190044395Abstract: The present disclosure relates to an electric machine (1) having a rotor (5) and a stator (4). The rotor (5) has a plurality of rotor poles (12). The stator (4) is part-annular and has a plurality of stator teeth (9) each having a winding. The stator (4) includes a plurality of sets (S1-9) of said stator teeth (9), each set (S1-9) comprising more than one stator tooth (9). The sets (S1-9) are magnetically de-coupled from each other. The windings (11) on the stator teeth (9) in each set (S1-9) are in different phases (A, B, C). The present disclosure also relates to a vehicle (2) having an electric machine (1) of the type described herein.Type: ApplicationFiled: January 30, 2017Publication date: February 7, 2019Inventors: Istvan KIRALY, Alexandros MICHAELIDES, Jose SOLER
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Publication number: 20190044396Abstract: The present disclosure relates to a method of configuring an electric machine (1). The electric machine (1) has a rotor (5) having Np rotor poles (12), where Np is the number of rotor poles (12); and a stator (4) having one or more cut-out sector and Nt stator teeth (9), where Nt is the number of stator teeth (9). The electric machine (1) is configured in dependence on a base model (Base1) having NtBase stator teeth (9) and rotor poles (12), where NtBase and NpBase are both integers greater than one and NpBase is an odd number. The method includes calculating Np using the equation (I) and calculating Nt using the equation (II); Where: Np is the number of rotor poles (12) and is greater than one; Nt is the number of stator teeth (9) and is greater than one; NpBase is the number of rotor poles (12) in the base model; NtBase is the number of stator teeth (9) in the base model; k is a non-negative integer; and f is a positive integer.Type: ApplicationFiled: January 30, 2017Publication date: February 7, 2019Inventors: Istvan KIRALY, Alexandros MICHAELIDES
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Publication number: 20180138764Abstract: The present disclosure relates to an electric drive motor (101; 201) for a vehicle. The electric drive motor (101; 201) has a stator (103) having a plurality of slots (107); and a rotor (102; 202) having a plurality of poles (106; 206). The poles (106; 206) each have at least a first permanent magnet (104; 204) centred on a d-axis of the pole (106; 206); and a plurality of flux barriers (109; 209) for disrupting at least an n-th order torque harmonic of the electric drive motor (101). Proximal to an outer surface of the rotor (102; 202), a first angular period (x11) between first and secondary flux barriers is defined by the equation (xi1=tao/n1), whereby: (xi1) is the first angular period; (tao) is the pole step; and n1 is an order number of a torque harmonic to be disrupted.Type: ApplicationFiled: June 8, 2016Publication date: May 17, 2018Inventors: Jose SOLER, Alexandros MICHAELIDES, Istvan KIRALY
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Patent number: 6248907Abstract: The invention relates to R-2-[3-([1,4]benzodioxan-2-ylmethylamino)-1-propyl]-3(2H)-pyridazinone of formula (1), and to S-2-[3-([1,4]benzodioxan-2-ylmethylamino)-1-propyl]-3(2H)-pyridazinone of formula (2), and to acid-addition salts thereof as well as pharmaceutical compositions containing these compounds. Furthermore, the invention relates to a process for the preparation of the above compounds. The new starting compounds of formulae (4) and (5) are also involved in the scope of the invention. The compounds according to the invention possess &agr;1- and &agr;2-adrenoceptor antagonistic effects and urogenital selectivity. Thus, they are useful for the treatment of the benign prostate hyperplasia.Type: GrantFiled: August 28, 2000Date of Patent: June 19, 2001Assignee: Gyogyszerkutato Intezet Kft.Inventors: Péter Mátyus, László Hársing, Marianne Tapfer née Karim, Judit Kosáry, Ágnes Papp née Behr, Antal Simay, Yemane Tilahun, Éva Tomori née Joszt, Edit Horváth, Katalin Horváth, Ildikó Varga, Erzsébet Zára née Kaczián, Margit Bidló née Iglóy, Alice Druga, György Rabloczky, Márta Varga, Egon Kárpáti, Endre Kasztreiner, István Király, Ildikó Máthé née Gyóry, György Máthé, László Sebestyén, Nándor Makk
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Patent number: 6194411Abstract: The invention relates to R-2-[3-([1,4]benzodioxan-2-ylmethylamino)-1-propyl]-3(2H)-pyridazionone of formula (1) and to S-2-[3-([1,4]benzodioxan-2-ylmethylamino)-1-propyl]-3(2H)-pyridazionone of formula (2) and to acid-addition salts thereof as well as pharmaceutical compositions containing these compounds. Furthermore, the invention relates to a process for the preparation of the above compounds. The new starting compounds of formula (4) and (5) are also involved in the scope of the invention. The compounds according to the invention possess &agr;1- and &agr;2-adrenoceptor antagonistic effects and urogenital selectivity. Thus, they are useful for the treatment of the benign prostate hyperplasia.Type: GrantFiled: July 20, 1998Date of Patent: February 27, 2001Assignee: Gyogyszerkutato Intezet Kft.Inventors: Péter Mátyus, László Hársing, Mariann née Tapfer Karim, Judit Kosáry, Ágnes née Behr Papp, Antal Simay, Yemane Tilahun, Éva née Joszt Tomori, Edit Horváth, Katalin Horváth, Ildikó Varga, Erzsébet née Kaczián Zára, Margit née Iglóy Bidló, Alice Druga, György Rabloczky, Márta Varga, Egon Kárpáti, Endre Kasztreiner, István Király, Ildikó née Gyóry Máthé, György Máthé, László Sebestyén, Nándor Makk