Patents by Inventor Alex Creviston

Alex Creviston 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: 10164492
    Abstract: An electric machine including a stator, a rotor surrounded by and rotatable relative to the stator, a supply terminal assembly, and an electronic module electrically connected to the stator. The electronic module includes a terminal having at least one bonding region. An electrical buss is attached to the supply terminal assembly, and includes a first and second conductor portions each having a connection region joined to a bonding region of the terminal of the electronic module. The terminal of the electronic module is electrically connected to the supply terminal assembly by the first and second conductor portions. Also disclosed is a method for manufacturing such an electric machine.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: December 25, 2018
    Assignee: BORGWARNER INC.
    Inventors: Alex Creviston, Chris Bledsoe
  • Patent number: 9661789
    Abstract: An alternator includes a housing body, and an electronics chassis electrically in common with output voltage (B+) of the alternator, conductively isolated from heat of the housing body, and having cooling fins. An air router intermediate the housing body and the chassis directs cooling air from air intake openings to the cooling fins. An electric machine includes a housing with air intake openings, an electronics chassis having rectifier electronics mounted thereon and having axially-extending cooling fins, and an air router secured intermediate the housing body and the electronics chassis, for routing the cooling air from the air intake openings directly to the cooling fins. An alternator includes a housing, an electronics chassis electrically in common with (B+), air intake openings, and an air router secured intermediate the housing body and the electronics chassis, the air router structured for routing air from the air intake openings directly to the electronics chassis.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: May 23, 2017
    Assignee: Remy Technologies, LLC
    Inventors: Alex Creviston, Chris Bledsoe
  • Patent number: 9450477
    Abstract: A method of cooling electronics of an alternator includes mounting the electronics onto an electrically conductive electronics chassis, and electrically connecting the electronics chassis to a positive DC (B+) output voltage terminal of the alternator, whereby the electronics chassis is electrically insulated from ground potential and thermally conductively isolated from the alternator housing. An alternator includes the housing at ground potential, the electronics chassis at B+ potential, and the mounted electronics. The electronics chassis is electrically insulated and conductively isolated from the housing. An electric machine includes the electronics chassis having an electronics mounting surface, and a convection surface, and defines an electrical bus for conducting a B+ potential. An electronics chassis assembly has an insulator secured between the housing at ground potential and the electronics chassis.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: September 20, 2016
    Assignee: Remy Technologies, LLC
    Inventors: Alex Creviston, Chris Bledsoe
  • Patent number: 9371810
    Abstract: An alternator-starter assembly for an internal combustion engine having a crankshaft and a drive member operatively connected to the crankshaft. The alternator-starter assembly includes an electric machine, a transmission assembly, and a controller. The electric machine includes a stator and a rotor that is configured for rotation relative to the stator. The transmission assembly includes a first drive shaft operatively connected to the rotor, a second drive shaft operatively connected to the drive member, and a gear assembly operatively connected to the first drive shaft and the second drive shaft. The controller is connected to the electric machine and is configured to operate the electric machine as a generator when the gear assembly is in a first gear configuration and to operate the electric machine as a motor when the gear assembly is in a second gear configuration.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: June 21, 2016
    Assignee: Remy Technologies, LLC
    Inventor: Alex Creviston
  • Publication number: 20150295478
    Abstract: An electric machine having a stator and a rotor operably coupled therewith. An accessory is coupled with the electric machine and an electrical device is mounted in a housing. The housing may advantageously include a polymeric shell that is overmolded on a conductive element providing communication between the electrical device and an external circuit. In some embodiments, a printed circuit board is mounted within the housing and thermally coupled with a metallic base member. In other embodiments, a second printed circuit board is provided with the first printed circuit board having a substrate with a greater thermal conductivity than the substrate of the second printed circuit board. The first printed circuit board may include a MOSFET rectifier and may take the form of a ceramic printed circuit board with the second board being an FR-4 board. The electric machine may be advantageously employed as an alternator for a vehicle.
    Type: Application
    Filed: June 1, 2015
    Publication date: October 15, 2015
    Inventors: Alex Creviston, Chris Bledsoe
  • Publication number: 20150256040
    Abstract: An electric machine including a stator, a rotor surrounded by and rotatable relative to the stator, a supply terminal assembly, and an electronic module electrically connected to the stator. The electronic module includes a terminal having at least one bonding region. An electrical buss is attached to the supply terminal assembly, and includes a first and second conductor portions each having a connection region joined to a bonding region of the terminal of the electronic module. The terminal of the electronic module is electrically connected to the supply terminal assembly by the first and second conductor portions. Also disclosed is a method for manufacturing such an electric machine.
    Type: Application
    Filed: May 19, 2015
    Publication date: September 10, 2015
    Inventors: Alex Creviston, Chris Bledsoe
  • Patent number: 9130430
    Abstract: An electric machine includes a core with a plurality of slots. A plurality of electric conductors are positioned in the slots. Each of the plurality of electric conductors includes a U-turn portion extending between two in-slot portions and connection ends extending from the in-slot portions. The connection ends are positioned on an opposite end of the core from the U-turn portions. A plurality of insulation tubes are positioned in the plurality of slots. The in-slot portions of the electric conductors extend through the insulation tubes.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: September 8, 2015
    Assignee: Remy Technologies LLC
    Inventors: Bradley D. Chamberlin, Koon Hoong Wan, Alex Creviston
  • Publication number: 20150207389
    Abstract: A method of cooling electronics of an alternator includes mounting the electronics onto an electrically conductive chassis, and electrically connecting the chassis to positive DC output voltage (B+) of the alternator, whereby the chassis is electrically insulated from ground potential and conductively isolated from heat of the housing. An alternator includes a housing at ground potential, a chassis at B+ potential, and electronics mounted to the chassis, where the chassis is electrically insulated and conductively isolated from the housing. An electric machine includes a B+ chassis having an electronics mounting surface, having a convection surface, and defining an electrical bus for conducting a B+ potential. A chassis assembly has an insulator secured between a frame at ground potential and the B+ chassis.
    Type: Application
    Filed: January 22, 2014
    Publication date: July 23, 2015
    Inventors: Alex Creviston, Chris Bledsoe
  • Publication number: 20150207287
    Abstract: A method includes resistance brazing using high-phosphorous electroless nickel (EN) plating both as a resistance path and as a flux. A method for fixing an electrical terminal to a pair of copper conductor bus strips includes the steps of plating the electrical terminal with high-phosphorous EN, placing the EN-plated terminal between the bus strips, and resistance brazing the terminal to the bus strips using the EN plating both as a resistance path and as a flux. A method of providing a high current electrical connection includes the steps of extending a terminal from a bottom surface of an electrical module, plating the terminal extension with high-phosphorous EN, placing a bus conductor into abutment with the plated terminal extension, and resistance brazing the bus conductor to the plated terminal extension using the high-phosphorous electroless nickel as a resistance path.
    Type: Application
    Filed: January 22, 2014
    Publication date: July 23, 2015
    Inventors: Alex Creviston, Ronald Gentry, Christopher Bledsoe
  • Publication number: 20150208528
    Abstract: An alternator includes a housing body, and an electronics chassis electrically in common with output voltage (B+) of the alternator, conductively isolated from heat of the housing body, and having cooling fins. An air router intermediate the housing body and the chassis directs cooling air from air intake openings to the cooling fins. An electric machine includes a housing with air intake openings, an electronics chassis having rectifier electronics mounted thereon and having axially-extending cooling fins, and an air router secured intermediate the housing body and the electronics chassis, for routing the cooling air from the air intake openings directly to the cooling fins. An alternator includes a housing, an electronics chassis electrically in common with (B+), air intake openings, and an air router secured intermediate the housing body and the electronics chassis, the air router structured for routing air from the air intake openings directly to the electronics chassis.
    Type: Application
    Filed: January 22, 2014
    Publication date: July 23, 2015
    Inventors: Alex Creviston, Chris Bledsoe
  • Patent number: 9067546
    Abstract: An interlock system and method are provided for protecting high voltage electrical couplings. The interlock system may control access to the electrical couplings based on the voltage of the electrical couplings. The interlock system may also selectively energize and de-energize the electrical couplings based on the position of a lid.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: June 30, 2015
    Assignee: Remy Technologies, L.L.C.
    Inventors: Andrew Meyer, Ronald Erli, Alex Creviston, Colin Hamer, Cary Ramey
  • Publication number: 20150096518
    Abstract: A starting system for an internal combustion engine is disclosed. During a key-start, a starter assembly is used to initiate rotation of the engine crankshaft. After the engine speed reaches a transfer speed, an alternator is used to supply torque to the engine until the engine is started. In some embodiments, the starter motor is de-energized while the alternator is cranking the engine and before the engine is started. The same battery pack is used to power both the starter motor and the alternator when starting the engine. An automatic start-stop system is also disclosed. When automatically restarting the engine, the alternator alone is used to restart the engine if it is still coasting above a restart engine speed. If the engine speed is below the restart engine speed, the starter motor initially cranks the engine when restarting the engine.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 9, 2015
    Inventors: Alex Creviston, Bradley D. Chamberlin
  • Patent number: 8978395
    Abstract: An electric machine system includes: an electric motor; and an absorption cooling system driven by heat generated by the electric motor and configured to cool a primary cooling fluid that removes the heat from the electric motor to a temperature below an ambient temperature of an ultimate heat sink. A method for operating the electric machine system is also disclosed.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: March 17, 2015
    Assignee: Remy Technologies, L.L.C.
    Inventor: Alex Creviston
  • Patent number: 8872399
    Abstract: An electrical device includes a plurality of stacked laminates that form a tubular stator portion, a cooling passage partially defined by orifices formed in the plurality of stacked laminates, a housing including a cavity further defining the cooling passage, the cooling passage defining a fluid flow path parallel to a rotational axis of the stator portion, a sump portion communicative with the cooling passage, the sump portion including a cavity defined by the stator portion and the housing member.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: October 28, 2014
    Assignee: Remy Technologies, L.L.C.
    Inventors: Brad Chamberlin, Larry Kubes, Alex Creviston
  • Publication number: 20140132094
    Abstract: A rotor of an electric machine includes a lamination stack having a plurality of longitudinally extending magnet channels each having a magnet space and longitudinally extending gaps on each lateral end of the magnet space. A plurality of permanent magnets are respectively disposed in ones of the magnet channels, substantially non-magnetic bars are disposed in each longitudinally extending gap, and a thermally conductive filler material secures the magnets and the bars within the channels. A method of thermal management of an internal permanent magnet (IPM) rotor includes installing, into at least one longitudinally extending magnet channel of a lamination stack, a pair of substantially non-magnetic bars adjacent opposite lateral ends of a longitudinally extending permanent magnet, and transferring heat from the magnet through the bars into the lamination stack.
    Type: Application
    Filed: November 9, 2012
    Publication date: May 15, 2014
    Applicant: Remy Technologies, LLC
    Inventors: Bradley D. Chamberlin, Colin Hamer, Alex Creviston, Koon Hoong Wan
  • Publication number: 20140070637
    Abstract: A rotor of an electric machine includes a rotor core having a plurality of longitudinally extending magnet channels each containing a permanent magnet, and a plurality of moldable containers each containing a heat transfer material and each being contiguous with portions of the respective permanent magnet and its magnet channel. A method of thermal management of an internal permanent magnet (IPM) rotor includes installing, into at least one longitudinally extending magnet channel of a rotor core, a permanent magnet having opposite lateral ends. The method also includes installing a moldable container, enclosing a heat transfer material, into the magnet channel adjacent one of the lateral ends of the permanent magnet. The method further includes transferring heat from the magnet through the container into the rotor core.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 13, 2014
    Inventors: Colin Hamer, Alex Creviston, Koon Hoong (Thomas) Wan
  • Publication number: 20140028139
    Abstract: A method of forming a rotor includes placing a plurality of laminations into a stack having a plurality of longitudinally extending magnet slots, placing a plurality of permanent magnets into ones of the magnet slots, and injecting a low viscosity epoxy resin into the lamination stack, thereby substantially filling the magnet slots with a portion of the epoxy resin having a thermal conductivity greater than 0.3 Watts/(meter*degree Kelvin) and substantially filling axial spaces between adjacent ones of the laminations with a portion of the epoxy resin having a thermal conductivity less than that of the epoxy resin in the magnet spaces.
    Type: Application
    Filed: July 26, 2012
    Publication date: January 30, 2014
    Inventors: Colin Hamer, Bradley D. Chamberlin, Alex Creviston, Koon Hoong Wan
  • Publication number: 20130342030
    Abstract: An interlock system and method are provided for protecting high voltage electrical couplings. The interlock system may control access to the electrical couplings based on the voltage of the electrical couplings. The interlock system may also selectively energize and de-energize the electrical couplings based on the position of a lid.
    Type: Application
    Filed: June 22, 2012
    Publication date: December 26, 2013
    Applicant: Remy Technologies, L.L.C.
    Inventors: Andrew Meyer, Ronald Erli, Alex Creviston, Colin Hamer, Cary Ramey
  • Patent number: 8591369
    Abstract: An asynchronous boost assist system for a motor vehicle includes a first electric motor, a second electric motor positioned opposite the first electric motor and a differential gear system operatively connected to the first and second electric motors. The differential gear system includes a first differential gear set and a second differential gear set. The first differential gear set is operatively connected to the first and second electric motors and the second differential gear set is configured and disposed to operatively connect to first and second vehicle wheels. A controller is operatively connected to each of the first and second electric motors. The controller selectively independently controls an operational speed of each of the first and second electric motors to selectively provide an acceleration boost through the second differential gear set.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: November 26, 2013
    Assignee: Remy Technologies, L.L.C.
    Inventors: Balazs Palfai, Alex Creviston, Attila Nagy, Gurkamal Singh
  • Patent number: D692377
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: October 29, 2013
    Assignee: Remy Technologies, LLC
    Inventors: Alex Creviston, Christopher A. Bledsoe, John Patrick Amos