Patents by Inventor Darren Dale Tremelling
Darren Dale Tremelling 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: 10634188Abstract: Rotating machines and rotors therefor are disclosed. The bearings may be magnetic bearings configured to magnetically levitate the rotor. The rotors may include a hollow fiber-reinforced composite shaft and a magnetic bearing rotor core disposed on the shaft and configured for use with the magnetic bearing. In some examples, the rotating machines may be electrical machines.Type: GrantFiled: May 31, 2018Date of Patent: April 28, 2020Assignee: ABB Schweiz AGInventors: Darren Dale Tremelling, Dezheng Wu, Steven Carl Englebretson, Simon E. Mushi, Se Young Yoon, Yujing Liu
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Patent number: 10468952Abstract: A permanent magnet machine with a hybrid cage and methods for operating same are disclosed. According to one aspect, the subject matter described herein includes a rotor and hybrid cage for an electrical machine, the rotor comprising a rotor body having a central axis and including a plurality of permanent magnets positioned to create a plurality of rotor magnetic poles distributed around a peripheral surface of the rotor. The rotor also includes a hybrid cage that includes conductive loops around each of the rotor magnetic poles, where the conductive loops are controllable to form a closed circuit or an open circuit around each of the rotor magnetic poles.Type: GrantFiled: November 20, 2013Date of Patent: November 5, 2019Assignee: ABB Schweiz AGInventors: Darren Dale Tremelling, Wen Ouyang
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Patent number: 10436204Abstract: The subject matter described herein includes a fan assembly for cooling an electric machine and an electric machine incorporating such a fan assembly. One exemplary fan assembly according to the subject matter described herein includes a first fan annulus for surrounding a portion of an electric machine. The fan assembly further includes a fan drive circuit for driving the first fan annulus separately from a drive mechanism of the electric machine. The first fan annulus is configured to be, when rotating to cool the electric machine, mechanically disconnected from a housing and a rotor of the electric machine and separated from the housing by radial gap.Type: GrantFiled: May 30, 2014Date of Patent: October 8, 2019Assignee: ABB Schweiz AGInventors: Darren Dale Tremelling, Ghanshyam Shrestha, Patrick Schneider, Zhiguo Pan
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Patent number: 10283236Abstract: A corrosion resistant conduit system that protects against corrosion and against electrical shortage. The corrosion resistant conduit system includes: a multilayer conduit having a metal layer disposed between two polymeric layers, a conduit fitting having an electrically conductive component and a body having one or more layers of polymeric material, and means for conductively coupling the metallic layer of the multilayer tube to the electrically conductive component of the fitting, which provides a continuous electrical path throughout the corrosion resistant conduit system.Type: GrantFiled: February 12, 2016Date of Patent: May 7, 2019Assignee: ABB Schweiz AGInventors: Darren Dale Tremelling, Nikolaus Peter Zant, Yan Gao, Letisha McLaughlin Lam, Mark Drane, Cong Thanh Dinh, Ian Rubin de la Borbolla, Ronald White
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Patent number: 10177633Abstract: The subject matter described herein includes a multiphase fractional slot concentrated winding machine. One such machine includes a machine module including a rotor and a stator. The stator includes a plurality of radially extending teeth. Each tooth is individually wound with a coil. The machine further includes a multiphase series converter circuit physically connected to an end of the machine module to energize the coils for multiphase operation.Type: GrantFiled: December 23, 2014Date of Patent: January 8, 2019Assignee: ABB Schweiz AGInventors: Ghanshyam Shrestha, Zhiguo Pan, Mario Schweizer, Darren Dale Tremelling, Waqas Mahmood Arshad
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Publication number: 20180274118Abstract: A method includes providing a conductor with a joint and a solution. In accordance with a step of the method, the conductor with the joint is inserted into the solution for a time sufficient to deposit a sufficient amount of conductive material in the joint to allow current to flow through the joint at a desired level when the conductor is installed in an application. In accordance with another aspect of the method, a structure with a joint is inserted into the solution for a time sufficient to deposit a sufficient amount of conductive material in the joint to strengthen the joint to a desired level. In accordance with another step of the method, an electromotive force is applied between an anode and the conductor for electolytic formation of the joint. In another aspect of the invention, the solution is configured for electroless formation of the joint.Type: ApplicationFiled: March 22, 2017Publication date: September 27, 2018Inventors: Sheng Zhong, Ghanshyam Shrestha, Darren Dale Tremelling
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Publication number: 20180274589Abstract: Rotating machines and rotors therefor are disclosed. The bearings may be magnetic bearings configured to magnetically levitate the rotor. The rotors may include a hollow fiber-reinforced composite shaft and a magnetic bearing rotor core disposed on the shaft and configured for use with the magnetic bearing. In some examples, the rotating machines may be electrical machines.Type: ApplicationFiled: May 31, 2018Publication date: September 27, 2018Inventors: Darren Dale Tremelling, Dezheng Wu, Steven Carl Englebretson, Simon E. Mushi, Se Young Yoon, Yujing Liu
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Patent number: 10012263Abstract: Rotating machines and rotors therefor are disclosed. The bearings may be magnetic bearings configured to magnetically levitate the rotor. The rotors may include a hollow fiber-reinforced composite shaft and a magnetic bearing rotor core disposed on the shaft and configured for use with the magnetic bearing. In some examples, the rotating machines may be electrical machines.Type: GrantFiled: September 13, 2013Date of Patent: July 3, 2018Assignee: ABB Research, LtdInventors: Darren Dale Tremelling, Dezheng Wu, Steven Carl Englebretson, Simon E. Mushi, Se Young Yoon, Yujing Liu
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Publication number: 20180025807Abstract: A corrosion resistant conduit system that protects against corrosion and against electrical shortage. The corrosion resistant conduit system includes: a multilayer conduit having a metal layer disposed between two polymeric layers, a conduit fitting having an electrically conductive component and a body having one or more layers of polymeric material, and means for conductively coupling the metallic layer of the multilayer tube to the electrically conductive component of the fitting, which provides a continuous electrical path throughout the corrosion resistant conduit system.Type: ApplicationFiled: February 12, 2016Publication date: January 25, 2018Applicant: ABB Technology AGInventors: Darren Dale Tremelling, Nikolaus Peter Zant, Yan Gao, Letisha McLaughlin Lam, Mark Drane, Cong Thanh Dinh, Ian Rubin de la Borbolla, Ronald White
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Patent number: 9667109Abstract: Permanent magnet electrical machine rotors and construction methods can include at least one magnet and at least one retention element. An axial relative force maintained between one or more magnets and one or more retention elements can urge the retention element along one or more magnet surfaces to induce a hoop stress in the retention elements and a compressive stress within the magnets.Type: GrantFiled: March 14, 2012Date of Patent: May 30, 2017Assignee: ABB Research Ltd.Inventor: Darren Dale Tremelling
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Patent number: 9571022Abstract: An electrical DC generation system is disclosed. According to one aspect, a system for electrical DC generation includes an electrical machine having multiple stator windings and multiple rectifiers for connection to portions of the stator windings. At least one active rectifier and at least one passive rectifier are connected in series to form a DC bus having a positive terminal and a negative terminal, where the positive terminal of the DC bus is connected to a positive output terminal of the electrical machine and where the negative terminal of the DC bus is connected to a negative output terminal of the electrical machine. The at least one active rectifier is used to control a current flowing through the DC bus and/or an output voltage of the electrical machine.Type: GrantFiled: August 30, 2013Date of Patent: February 14, 2017Assignee: ABB SCHWEIZ AGInventors: Zhiguo Pan, Darren Dale Tremelling
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Patent number: 9385645Abstract: An electrical DC generation system is disclosed. According to one aspect, a system for electrical DC generation system includes an electrical machine, having a positive output terminal and a negative output terminal, a plurality of stator windings, a plurality of passive rectifiers connected to the plurality of stator windings, the plurality of passive rectifiers being connected in series to form an intermediate bus having a positive terminal and a negative terminal. The system also includes a DC-DC converter circuit having input terminals connected to the positive and negative terminals of the intermediate bus and having output terminals electrically isolated from the input terminals and connected in series with the intermediate bus. The DC-DC converter output voltage is adjusted to regulate torque of the electrical machine by adjusting stator current of the electrical machine.Type: GrantFiled: August 30, 2013Date of Patent: July 5, 2016Assignee: ABB TECHNOLOGY AGInventors: Zhiguo Pan, Darren Dale Tremelling
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Publication number: 20160181893Abstract: The subject matter described herein includes a multiphase fractional slot concentrated winding machine. One such machine includes a machine module including a rotor and a stator. The stator includes a plurality of radially extending teeth. Each tooth is individually wound with a coil. The machine further includes a multiphase series converter circuit physically connected to an end of the machine module to energize the coils for multiphase operation.Type: ApplicationFiled: December 23, 2014Publication date: June 23, 2016Inventors: Ghanshyam Shrestha, Zhiguo Pan, Mario Schweizer, Darren Dale Tremelling, Waqas Mahmood Arshad
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Publication number: 20150349609Abstract: The subject matter described herein includes a fan assembly for cooling an electric machine and an electric machine incorporating such a fan assembly. One exemplary fan assembly according to the subject matter described herein includes a first fan annulus for surrounding a portion of an electric machine. The fan assembly further includes a fan drive circuit for driving the first fan annulus separately from a drive mechanism of the electric machine. The first fan annulus is configured to be, when rotating to cool the electric machine, mechanically disconnected from a housing and a rotor of the electric machine and separated from the housing by radial gap.Type: ApplicationFiled: May 30, 2014Publication date: December 3, 2015Inventors: Darren Dale Tremelling, Ghanshyam Shrestha, Patrick Schneider, Zhiguo Pan
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Publication number: 20150318774Abstract: A permanent magnet machine with a hybrid cage and methods for operating same are disclosed. According to one aspect, the subject matter described herein includes a rotor and hybrid cage for an electrical machine, the rotor comprising a rotor body having a central axis and including a plurality of permanent magnets positioned to create a plurality of rotor magnetic poles distributed around a peripheral surface of the rotor. The rotor also includes a hybrid cage that includes conductive loops around each of the rotor magnetic poles, where the conductive loops are controllable to form a closed circuit or an open circuit around each of the rotor magnetic poles.Type: ApplicationFiled: November 20, 2013Publication date: November 5, 2015Inventors: Darren Dale Tremelling, Wen Ouyang
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Publication number: 20150275966Abstract: Rotating machines and rotors therefor are disclosed. The bearings may be magnetic bearings configured to magnetically levitate the rotor. The rotors may include a hollow fiber-reinforced composite shaft and a magnetic bearing rotor core disposed on the shaft and configured for use with the magnetic bearing. In some examples, the rotating machines may be electrical machines.Type: ApplicationFiled: September 13, 2013Publication date: October 1, 2015Applicant: ABB RESEARCH LTD.Inventors: Darren Dale Tremelling, Dezheng Wu, Steven Carl Englebretson, Simon E. Mushi, Se Young Yoon, Yujing Liu
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Publication number: 20150061606Abstract: An electrical DC generation system is disclosed. According to one aspect, a system for electrical DC generation system includes an electrical machine, having a positive output terminal and a negative output terminal, a plurality of stator windings, a plurality of passive rectifiers connected to the plurality of stator windings, the plurality of passive rectifiers being connected in series to form an intermediate bus having a positive terminal and a negative terminal. The system also includes a DC-DC converter circuit having input terminals connected to the positive and negative terminals of the intermediate bus and having output terminals electrically isolated from the input terminals and connected in series with the intermediate bus. The DC-DC converter output voltage is adjusted to regulate torque of the electrical machine by adjusting stator current of the electrical machine.Type: ApplicationFiled: August 30, 2013Publication date: March 5, 2015Inventors: Zhiguo Pan, Darren Dale Tremelling
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Publication number: 20150061607Abstract: An electrical DC generation system is disclosed. According to one aspect, a system for electrical DC generation includes an electrical machine having multiple stator windings and multiple rectifiers for connection to portions of the stator windings. At least one active rectifier and at least one passive rectifier are connected in series to form a DC bus having a positive terminal and a negative terminal, where the positive terminal of the DC bus is connected to a positive output terminal of the electrical machine and where the negative terminal of the DC bus is connected to a negative output terminal of the electrical machine. The at least one active rectifier is used to control a current flowing through the DC bus and/or an output voltage of the electrical machine.Type: ApplicationFiled: August 30, 2013Publication date: March 5, 2015Inventors: Zhiguo Pan, Darren Dale Tremelling
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Publication number: 20130062984Abstract: Permanent magnet electrical machine rotors and construction methods therefor are disclosed. Permanent magnet electrical machine rotors may include at least one magnet and at least one retention element. The at least one magnet may have a surface. An axial relative force maintained between the at least one magnet and the at least one retention element may urge the retention element along the surface to induce a hoop stress in the at least one retention element and a compressive stress within the at least one magnet.Type: ApplicationFiled: March 14, 2012Publication date: March 14, 2013Applicant: ABB RESEARCH LTD.Inventor: Darren Dale Tremelling