Patents Assigned to Schaeffler Technologies AG & Co. KG
  • Publication number: 20210292884
    Abstract: A method for producing a reduced friction sliding surface on a machine element includes applying a coating comprising amorphous carbon to a surface of the machine element and locally heating the coating with a laser. The coating is heated to a temperature below an evaporation temperature of the coating to achieve a local volumetric increase in the coating and a local increase in a layer thickness of the coating. A surface structure of the coating includes a multiplicity of elevations resulting from a local phase transformation of the coating from amorphous carbon into graphite due to the locally heating.
    Type: Application
    Filed: March 23, 2018
    Publication date: September 23, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Oliver WITTER, Klaus FELDNER, Stefan DUPKE, Holger PÄTZOLD, Frank SCHLEREGE, Serge KURSAWE
  • Publication number: 20210291648
    Abstract: An electromechanical drive arrangement for a motor vehicle includes an electromechanical main drive motor, a reduction gear unit comprising a gear input, a gear output, at least one reduction stage and a gear housing that houses the reduction stage, an axle differential gear for branching the drive power guided over the reduction stage into a first wheel drive train section and a second wheel drive train section, and an auxiliary unit that can be driven by the main drive motor via the reduction stage. At least parts of the auxiliary unit are integrated into the gear housing. A switching body is provided in the gear housing such that the drive connection from the reduction stage to the axle differential gear can be switchably closed and switchably separated.
    Type: Application
    Filed: August 7, 2019
    Publication date: September 23, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Andrea Reichert, Martin Dressel
  • Publication number: 20210293162
    Abstract: A hydraulics unit for an internal combustion engine with a hydraulically variable gas exchange valve gear, is provided that includes a hydraulic housing having a pressure chamber, a pressure relief chamber and a venting duct. The venting duct is connected, on a hydraulic housing inner side, to the pressure relief chamber via a restriction and opens on a hydraulic housing outer side. The venting duct has a siphon with a downward first duct section and an upward second duct section, respectively in the direction of gravity and in the venting direction. When a gas exchange valve is closed, a lowermost section of the siphon is below a boundary of a pressure chamber defined by a slave piston.
    Type: Application
    Filed: September 29, 2017
    Publication date: September 23, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Lothar von SCHIMONSKY, Nicola MORELLI, Steffen PFEIFFER
  • Publication number: 20210293287
    Abstract: A clutch pack for a clutch in a drive train of a motor vehicle includes an axis defining an axial direction and a disk, rotatable about the axis, for contacting a counter-disk to transfer a torque. The disk includes a main body with a contact region for absorbing torque from or transferring a torque to the counter-disk, a toothed region for torque-transmitting contact with a disk carrier, and a region of specific elastic softness in the axial direction disposed between the contact region and the toothed region. In an example embodiment, the region of specific elastic softness in the axial direction is a steel sheet spring region.
    Type: Application
    Filed: June 12, 2019
    Publication date: September 23, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Marc Finkenzeller
  • Publication number: 20210293305
    Abstract: A plate link chain for a continuously variable transmission having cone pulleys includes a plurality of plates arranged transverse to a wrap-around direction of the plate link chain, a rocker pin and a securing element. The rocker pin extends transverse to the wrap-around direction, connects the plurality of plates to one another, and is arranged to absorb a force applied by the cone pulleys. The securing element is welded onto the rocker pin, forms a stop for a one of the plurality of plates transverse to the wrap-around direction, and has a nose protruding transverse to the wrap-around direction. The nose defines a contact point between the securing element and the one of the plurality of plates.
    Type: Application
    Filed: July 15, 2019
    Publication date: September 23, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Alexander Gorbunov
  • Publication number: 20210293315
    Abstract: A washer assembly and a hydrodynamic torque converter comprising the washer assembly is provided. The washer assembly comprises a washer and a plate; the washer is annular and comprises a washer body and two or more positioning clamps protruding radially inward from an inner periphery of the washer body, at least one side of the positioning clamp in a circumferential direction having a positioning protrusion protruding; the plate is annular, an inner periphery portion of the plate being provided with two or more positioning notches; an edge of at least one side of the positioning notch in the circumferential direction being provided with a positioning groove; and the washer is mounted to one end face of the plate. The washer assembly saves the internal space of the torque converter and saves the material cost of the washer.
    Type: Application
    Filed: September 14, 2018
    Publication date: September 23, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Joshua Cerreta
  • Publication number: 20210293277
    Abstract: A sealing device and a sealing arrangement which creates an improved outer seal in front of the sealing lips, for example, wherein the outer seal can be used in a confined space and affords an enhanced sealing effect for a low coefficient of friction and/or ease of fitting
    Type: Application
    Filed: July 5, 2017
    Publication date: September 23, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Hyunjae KIM, Daekyoung LEE, Alexander Häpp
  • Patent number: 11124179
    Abstract: A vehicle comprising a steering axle, a steering device configured to steer the steering axle, wherein a steering wheel angle can be input via the steering device, wherein the steering wheel angle leadings to a steering angle of wheels of the steering axle, and a quotient of the steering wheel angle to the steering angle defines a steering ratio, a first drive, wherein the first drive allows a wheel-selective distribution of a first torque to the wheels of the steering axle, a second drive, wherein the second drive allows a wheel-selective distribution of a second torque to the wheels of a drive axle, and a controller configured to receive input variables defining driving dynamic variables of the vehicle, wherein the drive dynamic variables allow a change in the steering ratio to ascertained, and the controller outputs control information for distributing the drive torque.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: September 21, 2021
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Juergen Roemer, Marcel Philipp Mayer
  • Patent number: 11125303
    Abstract: A hydraulic tensioning device for a chain drive of an internal combustion engine, having a receptacle and having a tensioning piston which is guided in displaceable fashion in a cylindrical hollow space of the receptacle and which has a piston hollow space, wherein the piston hollow space together with the cylindrical hollow space of the receptacle forms a pressure chamber, and having a pressure relief valve unit arranged in the piston hollow space. The pressure relief valve unit is a preassembled structural unit and comprises a spring, a closing body and a valve seat and also a valve receptacle which surrounds the valve seat in a first subsection, wherein the valve receptacle forms an interference fit with the valve seat, and wherein the valve receptacle or the valve seat in a second subsection form an interference fit with the inner shell surface of the tensioning piston.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: September 21, 2021
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Thomas Ullein, Rainer Fuhrmann
  • Patent number: 11125273
    Abstract: A bearing cage assembly is disclosed herein that includes a first cage half formed as a plastic cage and a second cage half formed as a metal shell. The first cage half includes a first base rim and a first plurality of arms extending axially from the first base rim. The second cage half includes a second base rim and a second plurality of arms extending axially from the second base rim. The second plurality of arms are each formed by a first flange and a second flange. The first flange and the second flange are spaced apart from each other in a radial direction to define a receptacle dimensioned to receive a respective one of the first plurality of arms. Free ends of the first flange and the second flange are crimped over to retain the first cage half with the second cage half.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: September 21, 2021
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Dennis Roffe, Ronald Taylor, Guihui Zhong, Michael Heaton
  • Patent number: 11125311
    Abstract: A torque converter includes a cover having a first surface and an annular plate axially spaced from the cover and having a second surface facing the first surface. A disc of the torque converter is disposed between the cover and the plate and has opposing first and second faces adjacent to the first and second surfaces, respectfully. Each of the faces defines a projection joined to one of the first and second surfaces by at least one capacitive discharge weld.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: September 21, 2021
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventor: Justin Persinger
  • Patent number: 11125302
    Abstract: A hydraulic tensioning device for a chain drive, including tensioning piston, which is guided in a holder and which has locking grooves on the outer peripheral surface of the tensioning piston, and including a locking element, which has at least two annular sections and at least two radial extensions, wherein the locking element can be brought into engagement with one of the locking grooves by the at least two annular sections, and including a clamping stop and a sliding stop, which are axially spaced apart from each other. In order to simplify the design, the holder has at least two axial extensions, which extend in the axial direction between the clamping stop plane and the sliding stop plane. The at least two axial extensions and the tensioning piston do not enclose the at least two radial extensions.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: September 21, 2021
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Alexander Schug, Patrick Wege, Rainer Fuhrmann
  • Patent number: 11125279
    Abstract: A friction clutch includes an axis of rotation, a disk spring, a plurality of leaf springs, a clutch cover and a pressure plate. The disk spring is for engaging the friction clutch. The disk spring includes tongues. The plurality of leaf springs is axially fixed to the tongues. The pressure plate is axially displaceable relative to the clutch cover and attached to the clutch cover in a torsion-resistant manner by the plurality of leaf springs.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: September 21, 2021
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventor: Christoph Raber
  • Patent number: 11129289
    Abstract: A bearing assembly, comprising a bearing configured to support a machine part, an installation space configured to receive at least one electronic module, a mount in the installation space that includes an electric line and the electronic module is attached to the mount, one or more continuous electronic conductor paths, and one or more interrupted conductor path that is parallel to the continuous electronic conduct path.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: September 21, 2021
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Christoph Weeth, Jens Heim
  • Publication number: 20210283735
    Abstract: A loading device for a plunge-cut grinding machine for centerless external cylindrical grinding includes a receiving frame, a support body, and a displacement actuator. The receiving frame is open in a gravitational direction and is for receiving a blank workpiece to be machined. The support body forms a support base for the blank workpiece. The displacement actuator is for axially displacing the receiving frame relative to the support body and into a grinding gap of the plunge-cut grinding machine. The receiving frame includes a conveying stop on an axially facing end face. The conveying stop is for axially expelling a final workpiece arranged in the grinding gap.
    Type: Application
    Filed: February 27, 2018
    Publication date: September 16, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Daniel Seubold
  • Publication number: 20210285442
    Abstract: An electric pump actuator for a continuously variable transmission includes a gear wheel pump, a first electric motor, a second electric motor, and an electric control unit. The gear wheel pump has a first gear wheel and a second gear wheel meshing with the first gear wheel. The first electric motor is for actuating the first gear wheel, and the second electric motor is for actuating the second gear wheel independent of the first gear wheel. The electronic control unit is arranged to control the first electric motor to transmit a first torque to the first gear wheel, and control the second electric motor to transmit a second torque to the second gear wheel that is set against the first torque in at least one rotation angle range.
    Type: Application
    Filed: May 3, 2018
    Publication date: September 16, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Shinobu Kamada, Masahiro Toriumi, Takao Miyazaki, Keiju Abo
  • Publication number: 20210285506
    Abstract: A centrifugal clutch includes an input part, an output part, a centrifugally engageable and disengageable friction unit, and a shifting apparatus. The friction unit has first frictional elements connected to the input part, and second frictional elements connected to the output part and layered alternately with the first frictional elements. The shifting apparatus is for frictionally engaging the first frictional elements and the second frictional elements to engage the clutch. The shifting apparatus has a centrifugal mass and a brake spring. When the centrifugal mass moves from a disengaged position to an engaged position, the brake spring is arranged to apply a first braking force contrary to a first direction of motion of the centrifugal mass. The brake spring is also arranged to apply a second braking force contrary to a second direction of motion of the centrifugal mass. The first braking force is greater than the second braking force.
    Type: Application
    Filed: January 17, 2018
    Publication date: September 16, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Sebastian Heuberger
  • Publication number: 20210285469
    Abstract: A hydrostatic actuator system includes an electric motor for delivering a hydraulic fluid via a piston unit. The actuator system is operating using a method in which a change in volume caused by a temperature change is sensed by a pressure measurement. The method reliably identifies a state of the transfer of the hydraulic fluid from a planetary roller transmission compartment into the master piston. The pressure measurement is continuously evaluated, and, in the event of a negative signal of the pressure measurement, suction of the hydraulic fluid by a planetary roller transmission lying in the hydraulic fluid between the electric motor and the piston unit into the piston unit is recognized and a fault signal is output.
    Type: Application
    Filed: June 11, 2019
    Publication date: September 16, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Erhard Hodrus
  • Publication number: 20210285495
    Abstract: A bearing cage assembly is disclosed that includes two sub-assemblies. Both cage sub-assemblies include a shell half formed from plastic, and defining a plurality of rolling element pockets and openings. Each sub-assembly also includes a frame half formed from metal, and including a rim and a plurality of crossbars. The shell halves are overmolded with the frame halves. The first cage sub-assembly and the second cage sub-assembly are connected to each other via insertion of the crossbars into the openings of the other sub-assembly, such that free ends of the crossbars engage the other rim.
    Type: Application
    Filed: March 13, 2020
    Publication date: September 16, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Guihui Zhong, Michael Heaton, Dennis Roffe
  • Publication number: 20210284009
    Abstract: A hybrid module includes a driveshaft connection point for receiving a first torque, a transmission shaft connection point for outputting a second torque, a torque-receiving means for receiving a third torque from an electrical machine, and a dry multiplate clutch. The dry multiplate clutch includes an outer plate holder, torsionally rigidly connected to the transmission shaft connection point and to the torque-receiving means, an inner plate holder, torsionally rigidly connected to the driveshaft connection point, at least one outer plate axially movably mounted in the outer plate holder, and a plurality of inner plates, axially movably mounted in the inner plate holder to form a stack of plates together with the at least one outer plate. When the stack of plates is axially pressed with a target contact pressure, a target torque can be transmitted from the driveshaft connection point to the torque-receiving means and the transmission shaft connection point.
    Type: Application
    Filed: July 29, 2019
    Publication date: September 16, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Rolf Meinhard