Patents by Inventor Bryn Geoffrey Roddick Richards
Bryn Geoffrey Roddick Richards 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: 20220021264Abstract: An electric machine is described together with a stator. The electric machine comprises a stator, said stator comprising a cylindrical stator core having an end face; slots provided on the end face, each slot running through the stator core; a plurality of conductor bars disposed within the slots; and an end face assembly electrically connecting at least two of the conductor bars; a rotor having a plurality of magnetic pole pairs; and a controller electrically connected to said stator for regulating an excitation current supplied to or from the conductor bars, wherein the controller regulates an amplitude of the excitation current independently of a frequency of the excitation current. This arrangement simplifies stator construction and allows for optimisation of the electric machine.Type: ApplicationFiled: September 17, 2021Publication date: January 20, 2022Inventors: Bryn Geoffrey Roddick Richards, Luke Read, Kevin Gray, Martin Palmer
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Patent number: 10822994Abstract: A turbine of a turbocompound engine (10) for extracting energy from the exhaust fluid flow of an and a controller (40) thereof is described. The turbine (10) comprises a housing (30); a turbine wheel (12) rotatably coupled within the housing (30) and rotatable by a fluid flow to provide a rotational output (14); a variable load (34) applying a load to the rotational output; and a controller (40). The controller (40) is configured to: receive information (404) relating to the operating conditions of the turbine (10); calculate an optimum operating velocity (402) of the rotational output based on the operating conditions; and supply a signal (410) to the variable load (34) to vary the load applied to the rotational output (14) in response to said operating conditions so that the rotational output (14) rotates at a corrected operating velocity (408). Such an arrangement increases the ability to operate the turbine at its optimum operating velocity.Type: GrantFiled: March 4, 2014Date of Patent: November 3, 2020Assignee: Aeristech LimitedInventor: Bryn Geoffrey Roddick Richards
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Patent number: 10451087Abstract: A turbo-compressor comprises a compressor wheel having an attachment arrangement for attaching the wheel to a drive shaft. The attachment arrangement includes an axially extending spigot internally radially located in a bore in the drive shaft and secured to the drive shaft by fastening means into the rear of the compressor wheel. Thus the compressor wheel expands and tightens into the shaft at speed. Furthermore, the nose of the compressor wheel is free to accept an aerodynamic profile.Type: GrantFiled: August 8, 2014Date of Patent: October 22, 2019Assignee: Aeristech LimitedInventor: Bryn Geoffrey Roddick Richards
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Publication number: 20190229575Abstract: An electric machine is described together with a stator. The electric machine comprises a stator, said stator comprising a cylindrical stator core having an end face; slots provided on the end face, each slot running through the stator core; a plurality of conductor bars disposed within the slots; and an end face assembly electrically connecting at least two of the conductor bars; a rotor having a plurality of magnetic pole pairs; and a controller electrically connected to said stator for regulating an excitation current supplied to or from the conductor bars, wherein the controller regulates an amplitude of the excitation current independently of a frequency of the excitation current. This arrangement simplifies stator construction and allows for optimisation of the electric machine.Type: ApplicationFiled: August 21, 2017Publication date: July 25, 2019Inventors: Bryn Geoffrey Roddick Richards, Luke Read, Kevin Gray, Martin Palmer
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Publication number: 20180248502Abstract: A permanent magnet motor (2), and also a permanent magnet generator (102) comprising a plurality of phase windings, a control system (16) and a commutation circuit (6) is described. The commutation circuit (6) is operative for controlling a timing of a current supplied to the phase windings in dependence upon an angular position of the permanent magnet motor (2). The control system (16) is operative to supply a current to an individual of the phase windings in a current pulse event occurring within a commutation event. The duration of the current pulse event is less than the duration of the commutation event and the proportion of the commutation event for which the current is supplied to the individual of the phase windings is determined so as to control the speed of the motor (2).Type: ApplicationFiled: August 17, 2016Publication date: August 30, 2018Inventors: Bryn Geoffrey Roddick RICHARDS, Michal KALBARCZYK
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Patent number: 9787228Abstract: An electrical controller for electric rotating machines is provided. A control system for electric rotating machines transmits a controlled quantity of current to or from different windings of the electric rotating machine at any given time. Furthermore, the amplitude of the current is independently variable of the timing and duration of the transmission of the current to or from the windings. This allows increased control of the electric rotating machine and facilitates the operation of the electric motor at high mechanical and/or electrical speeds.Type: GrantFiled: April 27, 2015Date of Patent: October 10, 2017Assignee: Aeristech Control Technologies LimitedInventors: Bryn Geoffrey Roddick Richards, Wenshan Hu
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Publication number: 20160195109Abstract: A turbo-compressor comprises a compressor wheel having an attachment arrangement for attaching the wheel to a drive shaft. The attachment arrangement includes an axially extending spigot internally radially located in a bore in the drive shaft and secured to the drive shaft by fastening means into the rear of the compressor wheel. Thus the compressor wheel expands and tightens into the shaft at speed. Furthermore, the nose of the compressor wheel is free to accept an aerodynamic profile.Type: ApplicationFiled: August 8, 2014Publication date: July 7, 2016Inventor: Bryn Geoffrey Roddick Richards
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Publication number: 20160024961Abstract: A turbine of a turbocompound engine (10) for extracting energy from the exhaust fluid flow of an and a controller (40) thereof is described. The turbine (10) comprises a housing (30); a turbine wheel (12) rotatably coupled within the housing (30) and rotatable by a fluid flow to provide a rotational output (14); a variable load (34) applying a load to the rotational output; and a controller (40). The controller (40) is configured to: receive information (404) relating to the operating conditions of the turbine (10); calculate an optimum operating velocity (402) of the rotational output based on the operating conditions; and supply a signal (410) to the variable load (34) to vary the load applied to the rotational output (14) in response to said operating conditions so that the rotational output (14) rotates at a corrected operating velocity (408). Such an arrangement increases the ability to operate the turbine at its optimum operating velocity.Type: ApplicationFiled: March 3, 2014Publication date: January 28, 2016Inventor: Bryn Geoffrey Roddick Richards
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Publication number: 20150229248Abstract: An electrical controller for electric rotating machines is provided. A control system for electric rotating machines transmits a controlled quantity of current to or from different windings of the electric rotating machine at any given time. Furthermore, the amplitude of the current is independently variable of the timing and duration of the transmission of the current to or from the windings. This allows increased control of the electric rotating machine and facilitates the operation of the electric motor at high mechanical and/or electrical speeds.Type: ApplicationFiled: April 27, 2015Publication date: August 13, 2015Applicant: AERISTECH CONTROL TECHNOLOGIES LIMITEDInventors: Bryn Geoffrey Roddick Richards, Wenshan Hu
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Patent number: 9041328Abstract: An electrical controller for electric motors is provided. A control system for an electric motor comprises a supply for supplying excitation current to different windings of the motor at any given time. Furthermore, the amplitude of the excitation current is independently variable of the timing and duration of the application of the excitation current to the windings. This allows increased control of the motor and facilitates the operation of the motor at high mechanical and/or electrical speeds.Type: GrantFiled: June 22, 2011Date of Patent: May 26, 2015Assignee: AERISTECH LIMITEDInventors: Bryn Geoffrey Roddick Richards, Wenshan Hu
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Publication number: 20130134918Abstract: An electrical controller for electric motors is provided. A control system for an electric motor comprises a supply for supplying excitation current to different windings of the motor at any given time. Furthermore, the amplitude of the excitation current is independently variable of the timing and duration of the application of the excitation current to the windings. This allows increased control of the motor and facilitates the operation of the motor at high mechanical and/or electrical speeds.Type: ApplicationFiled: June 22, 2011Publication date: May 30, 2013Applicant: AERISTECH CONTROL TECHNOLOGIES LIMITEDInventors: Bryn Geoffrey Roddick Richards, Wenshan Hu