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: 11870305Abstract: 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: GrantFiled: March 22, 2021Date of Patent: January 9, 2024Assignees: Rolls-Royce Singapore Pte. Ltd., Rolls-Royce plcInventors: Shanmukha Rama Krishna, Malaiyan Karthikeyan Srihariharan, Ellis Fui Hen Chong
-
Patent number: 11735965Abstract: 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: GrantFiled: March 22, 2021Date of Patent: August 22, 2023Assignees: Rolls-Royce plc, Rolls-Royce Singapore Pte. Ltd.Inventors: Ellis Fui Hen Chong, Shanmukha Rama Krishna, Mark Boden
-
Publication number: 20230116266Abstract: 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: ApplicationFiled: November 9, 2022Publication date: April 13, 2023Inventors: Ellis Fui Hen Chong, Alexander C. Smith, Yuanpeng Zhou
-
Publication number: 20220302777Abstract: 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: ApplicationFiled: March 22, 2021Publication date: September 22, 2022Inventors: Shanmukha Rama Krishna, Malaiyan Karthikeyan Srihariharan, Ellis Fui Hen Chong
-
Publication number: 20220302779Abstract: 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: ApplicationFiled: March 22, 2021Publication date: September 22, 2022Inventors: Ellis Fui Hen Chong, Shanmukha Rama Krishna, Mark Boden
-
Patent number: 10988035Abstract: 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: GrantFiled: October 11, 2019Date of Patent: April 27, 2021Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies, Inc., Rolls-Royce PLCInventors: Michael James Armstrong, Mark Jon Blackwelder, David John Howard Eames, Ellis Fui Hen Chong
-
Patent number: 10763715Abstract: 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: GrantFiled: December 27, 2017Date of Patent: September 1, 2020Assignees: Rolls Royce North American Technologies, Inc., Rolls Royce PLCInventors: David Loder, Ellis Fui Hen Chong, Edward Claude Rice
-
Publication number: 20200047897Abstract: 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: ApplicationFiled: October 11, 2019Publication date: February 13, 2020Inventors: Michael James Armstrong, Mark Jon Blackwelder, David John Howard Eames, Ellis Fui Hen Chong
-
Patent number: 10442542Abstract: 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: GrantFiled: June 8, 2016Date of Patent: October 15, 2019Assignees: Rolls-Royce North American Technologies, Inc., Rolls-Royce Corporation, Rolls-Royce PLCInventors: Michael James Armstrong, Mark Jon Blackwelder, David John Howard Eames, Ellis Fui Hen Chong
-
Publication number: 20190199151Abstract: 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: ApplicationFiled: December 27, 2017Publication date: June 27, 2019Inventors: David Loder, Ellis Fui Hen Chong, Edward Claude Rice
-
Stator winding arrangement for an electrical machine having series connected short and long windings
Patent number: 9853512Abstract: 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: GrantFiled: July 16, 2014Date of Patent: December 26, 2017Assignee: ROLLS-ROYCE plcInventors: David Reginald Trainer, Konstantinos Kampisios, Omar Fadhel Jasim, Ellis Fui Hen Chong, John James Anthony Cullen -
Patent number: 9735630Abstract: 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: GrantFiled: January 31, 2013Date of Patent: August 15, 2017Assignee: ROLLS-ROYCE plcInventors: Ellis Fui Hen Chong, Geraint Wyn Jewell, Leon Kevin Rodrigues
-
Publication number: 20160362187Abstract: 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: ApplicationFiled: June 8, 2016Publication date: December 15, 2016Inventors: Michael James Armstrong, Mark Jon Blackwelder, David John Howard Eames, Ellis Fui Hen Chong
-
Publication number: 20150035395Abstract: 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: ApplicationFiled: July 16, 2014Publication date: February 5, 2015Inventors: David Reginald TRAINER, Konstantinos KAMPISIOS, Omar Fadhel JASIM, Ellis Fui Hen CHONG, John James Anthony CULLEN
-
Publication number: 20140361649Abstract: 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: ApplicationFiled: January 31, 2013Publication date: December 11, 2014Applicant: Rolls-Royce PLCInventors: Ellis Fui Hen Chong, Geraint Wyn Jewell, Leon Kevin Rodrigues