Patents by Inventor Jeffrey Hemphill

Jeffrey Hemphill 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).

  • Publication number: 20210363917
    Abstract: A phase adjuster assembly is disclosed herein that is configured to adjust a phase between a driving component and driven component of an internal combustion engine. The phase adjuster assembly includes an input gear configured to be driven by the driving component and an output gear configured to drive the driven component. A piston plate assembly is configured to adjust a phase between the driving component and the driven component via axial displacement of the piston plate assembly. A hydraulic fluid system is configured to selectively provide hydraulic fluid to a first piston control chamber on a first side of the piston plate assembly and to a second piston control chamber on a second side of the piston plate assembly to axially displace the piston plate assembly such that the phase between the driving component and the driven component is adjusted.
    Type: Application
    Filed: May 19, 2021
    Publication date: November 25, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Nicholas Hrusch, Todd Sturgin, Jeffrey Hemphill
  • Patent number: 11168690
    Abstract: A pump includes a fluid inlet section, a fluid outlet section, a rotor axially between the fluid inlet section and the fluid outlet section, a center section radially inside of the rotor and a stator including electrical coils for generating electromagnetic flux for moving the rotor around the center section. The rotor and the center section define a fluid flow chamber radially therebetween. The rotor is rotatable about the center section by the electromagnetic flux generated by the electrical coils. An inlet control section is configured for regulating fluid flow from the fluid inlet section into the fluid flow chamber during rotation of the rotor inside of the stator about the center section. An outlet control section is configured for regulating fluid flow from the fluid flow chamber into the fluid outlet section during rotation of the rotor inside of the stator about the center section. The electrical coils are axially offset from the rotor.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: November 9, 2021
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Jeffrey Hemphill
  • Publication number: 20210207568
    Abstract: An accessory drive, including a planetary gear set with a plurality of components arranged to be concentrically disposed around a crankshaft of an internal combustion engine. The plurality of components includes: a sun gear; a planet carrier; a ring gear; and a planet gear meshed with the sun gear and the ring gear. A first component of the planetary gear set: is arranged to non-rotatably connect to a rotor of an electric motor/generator; and is arranged to connect to a power transfer component for least one accessory. A second component of the planetary gear set is arranged to non-rotatably connect to the crankshaft. For a starting mode of the accessory drive, the electric motor/generator is arranged to: rotate the first component of the planetary gear set; and rotate the second component of the planetary gear set with respect to the first component of the planetary gear set.
    Type: Application
    Filed: January 6, 2020
    Publication date: July 8, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Jeffrey Hemphill
  • Patent number: 10989191
    Abstract: A pump includes a fluid inlet section, a fluid outlet section, a rotor axially between the fluid inlet section and the fluid outlet section, a stator surrounding the rotor and a center section radially inside of the rotor on a center axis of the pump. The rotor and the center section define a fluid flow chamber radially therebetween. The rotor is rotatable inside of the stator about the center section by electromagnetic forces urging the rotor towards the stator. The pump also includes an inlet control section configured for regulating fluid flow from the fluid inlet section into the fluid flow chamber and an outlet control section configured for regulating fluid flow from the fluid flow chamber into the fluid outlet section.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: April 27, 2021
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Jeffrey Hemphill, Justin Bitar
  • Patent number: 10951081
    Abstract: A bobbin is provided for a stator of an electromagnetic device. The bobbin has two spaced-apart walls around which copper windings are wound. The spaced-apart wall arrangement reduces the material and space occupied by the bobbin, allowing for additional copper windings.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: March 16, 2021
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Jeffrey Hemphill
  • Publication number: 20210048022
    Abstract: A gerotor pump includes an inner gerotor, a wobble cancellation element, and an outer gerotor disposed radially between the inner gerotor and the wobble cancellation element. The inner gerotor includes a first outer peripheral surface with n first lobes equally spaced from one another in a circumferential direction, and n first depressions, each disposed between an adjacent pair of first lobes. The inner gerotor and the wobble cancellation element are coaxial. The wobble cancellation element includes a first inner peripheral surface with n+1 second lobes equally spaced from one another in the circumferential direction, and n+1 arcuate surfaces, each arranged between an adjacent pair of second lobes. The outer gerotor includes a second outer peripheral surface including n+1 outer depressions complementary to and arranged to engage the second lobes, and a second inner peripheral surface comprising n+1 inner depressions complementary to and arranged to engage the first lobes.
    Type: Application
    Filed: August 11, 2020
    Publication date: February 18, 2021
    Inventors: Kyle DeHoff, Joshua Hixenbaugh, Jeffrey Hemphill, Todd Sturgin
  • Publication number: 20210010471
    Abstract: A pump, comprising a rotor axially located between a fluid inlet section and a fluid outlet section, wherein the rotor is configured to rotate about a center axis, a stator surrounding the rotor, wherein the stator includes an inner diameter surface and an outer diameter surface, wherein the inner diameter surface includes a groove surrounding the stator and concentric about the center axis, and a ring surrounding the stator, wherein the ring is adjacent to the groove and defines a gap between an outer diameter of the surface and an inner surface of the ring, wherein the ring includes a ring mass and the stator includes a stator mass, and the ring mass is substantially equal to the stator mass.
    Type: Application
    Filed: July 11, 2019
    Publication date: January 14, 2021
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventor: Jeffrey HEMPHILL
  • Publication number: 20200325898
    Abstract: A pump includes a fluid inlet section, a fluid outlet section, a rotor axially between the fluid inlet section and the fluid outlet section, a center section radially inside of the rotor and a stator including electrical coils for generating electromagnetic flux for moving the rotor around the center section. The rotor and the center section define a fluid flow chamber radially therebetween. The rotor is rotatable about the center section by the electromagnetic flux generated by the electrical coils. An inlet control section is configured for regulating fluid flow from the fluid inlet section into the fluid flow chamber during rotation of the rotor inside of the stator about the center section. An outlet control section is configured for regulating fluid flow from the fluid flow chamber into the fluid outlet section during rotation of the rotor inside of the stator about the center section. The electrical coils are axially offset from the rotor.
    Type: Application
    Filed: April 11, 2019
    Publication date: October 15, 2020
    Inventor: Jeffrey Hemphill
  • Publication number: 20200132178
    Abstract: A torsion damper includes an input carrier and an output carrier. The input carrier is configured to rotate about an axis and receive an input torque from a prime mover, such as an engine. An output carrier is spaced along the axis from the input carrier and is configured to transfer an output torque to a transmission component. The torsion damper includes two rings, namely a first ring connected to the input carrier and a second ring connected to the output carrier. The first and second rings are spaced apart from one another. A plurality of rolling elements are disposed between and connect the first and second rings. Rotation of the input carrier relative to the output carrier causes the rings to rotate, forcing the first ring to be in compression and the second to be in tension.
    Type: Application
    Filed: October 29, 2018
    Publication date: April 30, 2020
    Inventor: Jeffrey HEMPHILL
  • Patent number: 10630138
    Abstract: A reciprocating ramp motor, including: an output shaft including an axis of rotation; a first electro-magnetic device including a first coil; an annular core plate disposed about the output shaft and axially off-set from the first electro-magnetic device in a first axial direction; a roller device; and a first ramp non-rotatably connected to the output shaft; and sloping in the first axial direction along a first circumferential direction. The first coil is arranged to be electrically energized to displace the annular core plate in a second axial direction, opposite the first axial direction. Displacement of the annular core plate in the second axial direction is arranged to roll the roller device along the first ramp in the second axial direction. Displacement of the roller device along the first ramp in the second axial direction is arranged to rotate the output shaft in the first circumferential direction.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: April 21, 2020
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Jeffrey Hemphill
  • Publication number: 20200036253
    Abstract: A bobbin is provided for a stator of an electromagnetic device. The bobbin has two spaced-apart walls around which copper windings are wound. The spaced-apart wall arrangement reduces the material and space occupied by the bobbin, allowing for additional copper windings.
    Type: Application
    Filed: July 30, 2018
    Publication date: January 30, 2020
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Jeffrey HEMPHILL
  • Patent number: 10514035
    Abstract: A pump is provided. The pump includes a fluid inlet section; a fluid outlet section; a stator axially between the fluid inlet section and the fluid outlet section; a rotor axially between the fluid inlet section and the fluid outlet section, the rotor and the stator defining a fluid flow space radially therebetween; a movable inlet guide configured for guiding fluid flow from the fluid inlet section into the fluid flow space; and a movable outlet guide configured for guiding fluid flow from the fluid flow space into the fluid outlet section. The rotor is rotatable inside of the stator by electromagnetic forces urging the rotor towards the stator.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: December 24, 2019
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Jeffrey Hemphill, Philip George
  • Patent number: 10471827
    Abstract: A differential arrangement including a wedge clutch assembly is provided. The wedge clutch assembly includes a cage with a first plurality of tapered crossbars to at least partially define a plurality of tapered wedge pockets. A plurality of wedges are each arranged within a respective one of the plurality of wedge pockets and within a circumferential groove of an input drive gear or a differential assembly. An actuator assembly is configured to move the cage in at least one of a first axial direction or a second axial direction. Movement of the first plurality of tapered crossbars in one of the first axial direction or the second axial direction circumferentially drives the plurality of wedges into contact with the circumferential groove such that the input drive gear drives the differential assembly.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: November 12, 2019
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Brian Lee, Tomas Smetana, Jeffrey Hemphill
  • Publication number: 20190301456
    Abstract: A pump includes a fluid inlet section, a fluid outlet section, a rotor axially between the fluid inlet section and the fluid outlet section, a stator surrounding the rotor and a center section radially inside of the rotor on a center axis of the pump. The rotor and the center section define a fluid flow chamber radially therebetween. The rotor is rotatable inside of the stator about the center section by electromagnetic forces urging the rotor towards the stator. The pump also includes an inlet control section configured for regulating fluid flow from the fluid inlet section into the fluid flow chamber and an outlet control section configured for regulating fluid flow from the fluid flow chamber into the fluid outlet section.
    Type: Application
    Filed: March 28, 2018
    Publication date: October 3, 2019
    Inventors: Jeffrey Hemphill, Justin Bitar
  • Publication number: 20190301453
    Abstract: A pump includes a fluid inlet section; a fluid outlet section; a stator axially between the fluid inlet section and the fluid outlet section; a rotor axially between the fluid inlet section and the fluid outlet section, the rotor and the stator defining a fluid flow chamber radially therebetween, the rotor being rotatable inside of the stator by electromagnetic forces urging the rotor towards the stator; an inlet control section configured for regulating fluid flow from the fluid inlet section into the fluid flow chamber; and an outlet control section configured for regulating fluid flow from the fluid flow chamber into the fluid outlet section. The rotor, the stator, the inlet control section and the outlet control section are arranged and configured such that rotation of the rotor in the stator generates in the fluid flow chamber a first pressure portion and a second pressure portion that rotate about a center axis of the rotor.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 3, 2019
    Inventors: Jeffrey Hemphill, George Philip
  • Patent number: 10288130
    Abstract: An expandable piston assembly for a clutch pack includes an apply piston, a stator, a rotor, and at least one side cover fixed to the stator. The stator is fixed to the apply piston and includes a first arcuate segment and a first radial protrusion extending from the first arcuate segment and including a distal end. The rotor is axially aligned with and rotatable relative to the stator. The rotor includes a second arcuate segment extending proximate the first radial protrusion distal end and a second radial protrusion extending from the second arcuate segment and including a distal end proximate the first arcuate segment. In some example embodiments, the first and second arcuate segments, the first and second radial protrusions, and the at least one side cover collectively form a portion of a first chamber for receiving a pressurized hydraulic fluid to rotate the rotor relative to the stator.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: May 14, 2019
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Jeffrey Hemphill, Vural Ari, Philip George, Matthias Kruse
  • Publication number: 20190093642
    Abstract: A transmission pump comprising a pair of pistons located in corresponding chambers of the pump, the pistons configured to move fluid located in the chamber. The transmission pump also includes one or more return springs located in at least one of the chambers and configured to move the pair of pistons. The transmission pump also includes an electrical coil located adjacent the pair of pistons, wherein the coil is configured to produce a magnetic flux to move the pistons and springs.
    Type: Application
    Filed: September 27, 2017
    Publication date: March 28, 2019
    Inventor: Jeffrey HEMPHILL
  • Publication number: 20190081534
    Abstract: A reciprocating ramp motor, including: an output shaft including an axis of rotation; a first electro-magnetic device including a first coil; an annular core plate disposed about the output shaft and axially off-set from the first electro-magnetic device in a first axial direction; a roller device; and a first ramp non-rotatably connected to the output shaft; and sloping in the first axial direction along a first circumferential direction. The first coil is arranged to be electrically energized to displace the annular core plate in a second axial direction, opposite the first axial direction. Displacement of the annular core plate in the second axial direction is arranged to roll the roller device along the first ramp in the second axial direction. Displacement of the roller device along the first ramp in the second axial direction is arranged to rotate the output shaft in the first circumferential direction.
    Type: Application
    Filed: September 13, 2017
    Publication date: March 14, 2019
    Inventor: Jeffrey Hemphill
  • Publication number: 20190070955
    Abstract: A differential arrangement including a wedge clutch assembly is provided. The wedge clutch assembly includes a cage with a first plurality of tapered crossbars to at least partially define a plurality of tapered wedge pockets. A plurality of wedges are each arranged within a respective one of the plurality of wedge pockets and within a circumferential groove of an input drive gear or a differential assembly. An actuator assembly is configured to move the cage in at least one of a first axial direction or a second axial direction. Movement of the first plurality of tapered crossbars in one of the first axial direction or the second axial direction circumferentially drives the plurality of wedges into contact with the circumferential groove such that the input drive gear drives the differential assembly.
    Type: Application
    Filed: September 1, 2017
    Publication date: March 7, 2019
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Brian Lee, Tomas Smetana, Jeffrey Hemphill
  • Publication number: 20190009725
    Abstract: A workpiece support is provided for a pickup truck tailgate. The tailgate includes a retractable step including a pair of step support members. The attachment brackets include a workpiece support bar and a riser that are attached to the step support members and to each other at a right angle. The workpiece support bar and riser may be fixedly attached to each other or attached by a pivot connector. Detachable connectors are provided to connect a workpiece support bar and riser detachably to the step support members.
    Type: Application
    Filed: September 13, 2018
    Publication date: January 10, 2019
    Inventors: Dragan B. STOJKOVIC, Joshua R. HEMPHILL, Jack MARCHLEWSKI, Robert REINERS, Jeffrey HEMPHILL