Patents by Inventor Ellis Fui Hen Chong

Ellis Fui Hen Chong 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: 11870305
    Abstract: A rotor assembly includes a plurality of segmented magnets disposed about an outer surface of a rotor core and a plurality of segmented metallic bands configured to secure the plurality of segmented magnets to the outer surface of the rotor core. The number of segments of the segmented metallic bands in an axial direction is greater than the number of segments of the segmented magnets.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: January 9, 2024
    Assignees: Rolls-Royce Singapore Pte. Ltd., Rolls-Royce plc
    Inventors: Shanmukha Rama Krishna, Malaiyan Karthikeyan Srihariharan, Ellis Fui Hen Chong
  • Patent number: 11735965
    Abstract: A rotor assembly includes a plurality of segmented magnets on an outer surface of a rotor core, a metallic layer on the outer surface of the plurality of segmented magnets, and a plurality of segmented metallic bands on the outer surface of the metallic layer. The plurality of segmented metallic bands is configured to secure the plurality of segmented magnets to the outer surface of the rotor core, and each band of the plurality of metallic bands has an axial length less than an axial length of the rotor.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: August 22, 2023
    Assignees: Rolls-Royce plc, Rolls-Royce Singapore Pte. Ltd.
    Inventors: Ellis Fui Hen Chong, Shanmukha Rama Krishna, Mark Boden
  • Publication number: 20230116266
    Abstract: The present disclosure relates to an electromechanical system comprising a toothed rotor and a stator segment. The stator segment comprises an armature coil defining a coil interior. The stator segment further comprises first and second stator portions, each stator portion comprising connected inner and outer radially extending poles. Each of the inner poles passes through the coil interior and each of the outer poles is provided outside of the coil interior. The stator segment further comprises a bridge spacing the stator portions and the bridge comprises a magnetic field generator arranged to generate a magnetic field between the stator portions.
    Type: Application
    Filed: November 9, 2022
    Publication date: April 13, 2023
    Inventors: Ellis Fui Hen Chong, Alexander C. Smith, Yuanpeng Zhou
  • Publication number: 20220302777
    Abstract: A rotor assembly includes a plurality of segmented magnets disposed about an outer surface of a rotor core and a plurality of segmented metallic bands configured to secure the plurality of segmented magnets to the outer surface of the rotor core. The number of segments of the segmented metallic bands in an axial direction is greater than the number of segments of the segmented magnets.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 22, 2022
    Inventors: Shanmukha Rama Krishna, Malaiyan Karthikeyan Srihariharan, Ellis Fui Hen Chong
  • Publication number: 20220302779
    Abstract: A rotor assembly includes a plurality of segmented magnets on an outer surface of a rotor core, a metallic layer on the outer surface of the plurality of segmented magnets, and a plurality of segmented metallic bands on the outer surface of the metallic layer. The plurality of segmented metallic bands is configured to secure the plurality of segmented magnets to the outer surface of the rotor core, and each band of the plurality of metallic bands has an axial length less than an axial length of the rotor.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 22, 2022
    Inventors: Ellis Fui Hen Chong, Shanmukha Rama Krishna, Mark Boden
  • Patent number: 10988035
    Abstract: An alternating current type electric propulsion system is described that includes an AC generator and a plurality of propulsors electrically coupled to the AC generator. A first propulsor from the plurality of propulsors includes a first motor that drives a first fan of the first propulsor at a first speed. A second propulsor from the plurality of propulsors comprises a second motor that drives a second fan of the second propulsor at a second speed that is different than the first speed.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: April 27, 2021
    Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies, Inc., Rolls-Royce PLC
    Inventors: Michael James Armstrong, Mark Jon Blackwelder, David John Howard Eames, Ellis Fui Hen Chong
  • Patent number: 10763715
    Abstract: A rotor assembly with a rotor hub, a plurality of permanent magnets positioned circumferentially around at least a portion of the rotor hub, and a coating on at least a portion of the plurality of permanent magnets. The coating forming a retaining band that circumferentially extends around the rotor hub and the plurality of permanent magnets. The coating includes a nano-crystalline layer including a metal or metal alloy and defines an average grain size of less than about 50 nanometers (nm).
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: September 1, 2020
    Assignees: Rolls Royce North American Technologies, Inc., Rolls Royce PLC
    Inventors: David Loder, Ellis Fui Hen Chong, Edward Claude Rice
  • Publication number: 20200047897
    Abstract: An alternating current type electric propulsion system is described that includes an AC generator and a plurality of propulsors electrically coupled to the AC generator. A first propulsor from the plurality of propulsors includes a first motor that drives a first fan of the first propulsor at a first speed. A second propulsor from the plurality of propulsors comprises a second motor that drives a second fan of the second propulsor at a second speed that is different than the first speed.
    Type: Application
    Filed: October 11, 2019
    Publication date: February 13, 2020
    Inventors: Michael James Armstrong, Mark Jon Blackwelder, David John Howard Eames, Ellis Fui Hen Chong
  • Patent number: 10442542
    Abstract: An alternating current type electric propulsion system is described that includes an AC generator and a plurality of propulsors electrically coupled to the AC generator. A first propulsor from the plurality of propulsors includes a first motor that drives a first fan of the first propulsor at a first speed. A second propulsor from the plurality of propulsors comprises a second motor that drives a second fan of the second propulsor at a second speed that is different than the first speed.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: October 15, 2019
    Assignees: Rolls-Royce North American Technologies, Inc., Rolls-Royce Corporation, Rolls-Royce PLC
    Inventors: Michael James Armstrong, Mark Jon Blackwelder, David John Howard Eames, Ellis Fui Hen Chong
  • Publication number: 20190199151
    Abstract: A rotor assembly with a rotor hub, a plurality of permanent magnets positioned circumferentially around at least a portion of the rotor hub, and a coating on at least a portion of the plurality of permanent magnets. The coating forming a retaining band that circumferentially extends around the rotor hub and the plurality of permanent magnets. The coating includes a nano-crystalline layer including a metal or metal alloy and defines an average grain size of less than about 50 nanometers (nm).
    Type: Application
    Filed: December 27, 2017
    Publication date: June 27, 2019
    Inventors: David Loder, Ellis Fui Hen Chong, Edward Claude Rice
  • Patent number: 9853512
    Abstract: Described is an electrical machine, including: a rotor having a magnetic flux source mounted thereto; a stator winding arrangement having a first set of electrical connections to provide a first output channel, and a second set of electrical connections to provide a second output channel, the first and second channels being electrically out of phase, wherein the stator winding arrangement is constructed from a plurality of winding portions which are connected in electrical series.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: December 26, 2017
    Assignee: ROLLS-ROYCE plc
    Inventors: David Reginald Trainer, Konstantinos Kampisios, Omar Fadhel Jasim, Ellis Fui Hen Chong, John James Anthony Cullen
  • Patent number: 9735630
    Abstract: This invention relates to a laminated core for an electrical machine, including: a plurality of laminations configured to define a channel in a surface of the laminated core for the flow of a cooling fluid, wherein the channel has a base and at least one side wall, the at least one side wall having a stepped profile.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: August 15, 2017
    Assignee: ROLLS-ROYCE plc
    Inventors: Ellis Fui Hen Chong, Geraint Wyn Jewell, Leon Kevin Rodrigues
  • Publication number: 20160362187
    Abstract: An alternating current type electric propulsion system is described that includes an AC generator and a plurality of propulsors electrically coupled to the AC generator. A first propulsor from the plurality of propulsors includes a first motor that drives a first fan of the first propulsor at a first speed. A second propulsor from the plurality of propulsors comprises a second motor that drives a second fan of the second propulsor at a second speed that is different than the first speed.
    Type: Application
    Filed: June 8, 2016
    Publication date: December 15, 2016
    Inventors: Michael James Armstrong, Mark Jon Blackwelder, David John Howard Eames, Ellis Fui Hen Chong
  • Publication number: 20150035395
    Abstract: Described is an electrical machine, including: a rotor having a magnetic flux source mounted thereto; a stator winding arrangement having a first set of electrical connections to provide a first output channel, and a second set of electrical connections to provide a second output channel, the first and second channels being electrically out of phase, wherein the stator winding arrangement is constructed from a plurality of winding portions which are connected in electrical series.
    Type: Application
    Filed: July 16, 2014
    Publication date: February 5, 2015
    Inventors: David Reginald TRAINER, Konstantinos KAMPISIOS, Omar Fadhel JASIM, Ellis Fui Hen CHONG, John James Anthony CULLEN
  • Publication number: 20140361649
    Abstract: This invention relates to a laminated core for an electrical machine, including: a plurality of laminations configured to define a channel in a surface of the laminated core for the flow of a cooling fluid, wherein the channel has a base and at least one side wall, the at least one side wall having a stepped profile.
    Type: Application
    Filed: January 31, 2013
    Publication date: December 11, 2014
    Applicant: Rolls-Royce PLC
    Inventors: Ellis Fui Hen Chong, Geraint Wyn Jewell, Leon Kevin Rodrigues