Patents by Inventor Petr Chmelicek
Petr Chmelicek 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: 11632024Abstract: Construction of a permanent magnet rotor assembly having a plurality of magnetic poles and comprising a number of magnetic pole pieces arranged in circular array. Two sets of permanent magnets—one set magnetised in circumferential direction of the rotor and the second set providing flux in axial direction of rotor, generating a magnetic flux focused through the pole piece and interacting with the magnetic flux of the stator. End-plates made of magnetic material are present such there is an axial gap between the them and the array of magnetic pole pieces. Circumferentially magnetised magnets are placed in the circumferential gaps between the pole pieces, whereas the magnets providing flux in axial direction are placed in the gaps between the array of pole pieces and end-plates.Type: GrantFiled: September 26, 2018Date of Patent: April 18, 2023Assignee: ROMAX TECHNOLOGY LIMITEDInventors: Petr Chmelicek, Ashish Goel, Marek Jacubaszek
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Patent number: 11133725Abstract: An electrical machine comprising: a first rotor, the first rotor producing a first magnetic field having a first number of pole pairs; a second rotor comprising a plurality of pole pieces, the plurality of pole pieces being arranged to modulate the first magnetic field to produce a second magnetic field having a second number of pole pairs; a stator Comprising one or more windings arranged to produce a third magnetic field arranged to interact with the first number of pole pairs and the second number of pole pairs; wherein the interaction of the third magnetic field with the first number of pole pairs and the second number of pole pairs changes a torque ratio between the first rotor and the second rotor.Type: GrantFiled: January 16, 2018Date of Patent: September 28, 2021Assignee: Magnomatics LimitedInventors: Stuart Calverley, Petr Chmelicek
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Patent number: 11095175Abstract: The current invention relates to a magnetic pole arrangement comprising a plurality of magnetic pole assembles arranged back-to-back along a longitudinally extending axis of rotation X. Each providing flux to an air gap G. Each magnetic pole assembly comprising one or more magnetic poles pieces and two components of magnetic flux. The first component of magnetic flux provided by a plurality of axially magnetised axially displaced magnets arranged in circumferentially extending arrays. The second component of magnetic flux provided by a plurality of circumferentially magnetised magnets circumferentially spaced around the axis of rotation X.Type: GrantFiled: October 30, 2018Date of Patent: August 17, 2021Assignee: ROMAX TECHNOLOGY LIMITEDInventors: Petr Chmelicek, Ashish Goel
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Patent number: 11005321Abstract: The current invention relates to a magnetic pole assembly, providing flux to an air gap, comprising one or more magnetic pole pieces and one or more sources of magnetic flux. Said one or more sources of magnetic flux lie adjacent to the axial faces and circumferential faces and one of the radially inner face or radially outer face of each magnetic pole piece. Thereby to allow flux created by said one or more sources of magnetic flux to enter the one or more magnetic pole pieces in order to focus the magnetic flux of said pole piece towards and out of the radial surface not having a source of magnetic flux adjacent thereto. Such an arrangement, increases the flux density in the air gap adjacent to said radial surface not having a source of magnetic flux adjacent thereto.Type: GrantFiled: October 30, 2018Date of Patent: May 11, 2021Inventors: Petr Chmelicek, Ashish Goel
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Patent number: 10680502Abstract: A magnetically geared apparatus (400), a pole piece component (420) and a plurality of pole pieces (422) for such apparatus are disclosed. The magnetically geared apparatus (400) comprises the pole piece component (420) and the pole piece component (420) comprises the plurality of pole pieces (422) mounted to a carrier (421), wherein at least one of the pole pieces (500) comprises at least two axially-spaced portions spaced apart by a portion of a higher magnetic reluctance (560) than that of each of the two axially-spaced portions.Type: GrantFiled: August 23, 2016Date of Patent: June 9, 2020Assignee: MAGNOMATICS LIMITEDInventors: David James Powell, Petr Chmelicek
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Publication number: 20190341828Abstract: An electrical machine comprising: a first rotor, the first rotor producing a first magnetic field having a first number of pole pairs; a second rotor comprising a plurality of pole pieces, the plurality of pole pieces being arranged to modulate the first magnetic field to produce a second magnetic field having a second number of pole pairs; a stator Comprising one or more windings arranged to produce a third magnetic field arranged to interact with the first number of pole pairs and the second number of pole pairs; wherein the interaction of the third magnetic field with the first number of pole pairs and the second number of pole pairs changes a torque ratio between the first rotor and the second rotor.Type: ApplicationFiled: January 16, 2018Publication date: November 7, 2019Inventors: Stuart Calverley, Petr Chmelicek
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Publication number: 20190173342Abstract: The current invention relates to a magnetic pole assembly, providing flux to an air gap, comprising one or more magnetic pole pieces and one or more sources of magnetic flux. Said one or more sources of magnetic flux lie adjacent to the axial faces and circumferential faces and one of the radially inner face or radially outer face of each magnetic pole piece. Thereby to allow flux created by said one or more sources of magnetic flux to enter the one or more magnetic pole pieces in order to focus the magnetic flux of said pole piece towards and out of the radial surface not having a source of magnetic flux adjacent thereto. Such an arrangement, increases the flux density in the air gap adjacent to said radial surface not having a source of magnetic flux adjacent thereto.Type: ApplicationFiled: October 30, 2018Publication date: June 6, 2019Inventors: Petr CHMELICEK, Ashish GOEL
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Publication number: 20190131838Abstract: The current invention relates to a magnetic pole arrangement comprising a plurality of magnetic pole assembles arranged back-to-back along a longitudinally extending axis of rotation X. Each providing flux to an air gap G. Each magnetic pole assembly comprising one or more magnetic poles pieces and two components of magnetic flux. The first component of magnetic flux provided by a plurality of axially magnetised axially displaced magnets arranged in circumferentially extending arrays. The second component of magnetic flux provided by a plurality of circumferentially magnetised magnets circumferentially spaced around the axis of rotation X.Type: ApplicationFiled: October 30, 2018Publication date: May 2, 2019Inventors: Petr Chmelicek, Ashish Goel
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Publication number: 20190103791Abstract: Construction of a permanent magnet rotor assembly having a plurality of magnetic poles and comprising a number of magnetic pole pieces arranged in circular array. Two sets of permanent magnets—one set magnetised in circumferential direction of the rotor and the second set providing flux in axial direction of rotor, generating a magnetic flux focused through the pole piece and interacting with the magnetic flux of the stator. End-plates made of magnetic material are present such there is an axial gap between the them and the array of magnetic pole pieces. Circumferentially magnetised magnets are placed in the circumferential gaps between the pole pieces, whereas the magnets providing flux in axial direction are placed in the gaps between the array of pole pieces and end-plates.Type: ApplicationFiled: September 26, 2018Publication date: April 4, 2019Inventors: Ashish Goel, Marek Jakubaszek, Petr Chmelicek
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Publication number: 20180269770Abstract: A magnetically geared apparatus (400), a pole piece component (420) and a plurality of pole pieces (422) for such apparatus are disclosed. The magnetically geared apparatus (400) comprises the pole piece component (420) and the pole piece component (420) comprises the plurality of pole pieces (422) mounted to a carrier (421), wherein at least one of the pole pieces (500) comprises at least two axially-spaced portions spaced apart by a portion of a higher magnetic reluctance (560) than that of each of the two axially-spaced portions.Type: ApplicationFiled: August 23, 2016Publication date: September 20, 2018Inventors: David James Powell, Petr Chmelicek