Patents Assigned to Schaeffler Technologies GmbH & Co. KG
  • Publication number: 20110021276
    Abstract: A spring retainer assembly, including: a flange plate; a plurality of springs in contact with a radially outer portion of the flange plate; a first cover plate; a second cover plate; a spring retainer; and at least one fastening device. The spring retainer and the first plate substantially surround respective outer circumferences of the plurality of springs; and the at least one fastening device is for fixedly connecting the spring retainer to a torque-transmitting device. In one embodiment, the spring retainer is axially fixed by the connection to the torque-transmitting device and includes a first portion, and contact of the first portion with the first plate positions the first plate in a desired axial position with respect to the plurality of springs. In one embodiment, the spring retainer includes a plurality of protrusions and a circumferential end for each spring is in contact with a respective protrusion.
    Type: Application
    Filed: July 22, 2010
    Publication date: January 27, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventor: Jonathan JAMESON
  • Publication number: 20110022258
    Abstract: A method for controlling a hybrid motor vehicle which has an electromotive internal combustion engine, which is operated by an electric accumulator and is operatively connected to a generator for the charging of the accumulator, and a control unit for controlling the drive unit, in particular the internal combustion engine as a function of the charge state of the accumulator. So that the internal combustion engine is operated advantageously, in addition to a control process as a function of the charge state of the accumulator, in order to protect the control unit and/or for the effective operation thereof, the internal combustion engine is controlled, at least as a function of a retrieved continuous power rating of the accumulator, a temperature of the accumulator, of vibrations occurring in the motor vehicle and/or of a downtime of the internal combustion engine.
    Type: Application
    Filed: July 26, 2010
    Publication date: January 27, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Ralf STOPP, Michael BOGNER
  • Publication number: 20110019954
    Abstract: The invention relates to an axial bearing arrangement (1) and a method for the manufacture thereof, with a first bearing ring (3) forming a structural unit (16) with a radially inwardly directed axial projection (11) with a radially outwardly directed resilient element (13) and a first running surface (5), and a second bearing ring (2) with a radially outwardly arranged axial projection (10) with a radially inwardly directed resilient element (12), with a second running surface (4), and a single-piece rolling body cage (6) which receives distributed over the circumference rolling bodies (8) which roll on the running surfaces (4, 5), wherein the rolling body cage (6) radially engages over the two resilient elements (12, 13).
    Type: Application
    Filed: July 21, 2010
    Publication date: January 27, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventor: James Kevin BROWN
  • Publication number: 20110019953
    Abstract: A rolling bearing with a brake mechanism, in particular a rotary connection, which has an outer bearing ring and an inner bearing ring, between which rolling bodies roll on assigned tracks. A brake element, which is connected displaceably to one of the bearing rings, is pressed against an opposite surface connected to the associated other bearing ring in order to produce a braking effect by frictional engagement and the frictional engagement can be cancelled by means of an electromagnet. The brake element is arranged as an integral bearing component inside one of the bearing rings and is pressed against the opposite surface by means of a spring force. The spring force is variably settable and the electromagnet includes one of the bearing rings as a soft-iron core and a coil enclosing the latter.
    Type: Application
    Filed: October 22, 2008
    Publication date: January 27, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Christian Nuissl, Juergen Stoelzle
  • Patent number: 7874415
    Abstract: A torque transfer device, in particular in the drive train of a motor vehicle for torque transfer between a drive unit, in particular a combustion engine, and a transmission with at least one multi-disk clutch, in particular, a twin multi-disk clutch, comprising at least one disk packet, comprising outer disks, connected torque proof with an outer disk carrier, and inner disks, connected torque proof with an inner disk carrier (17, 27), and with at least one operating lever device for operating the multi-disk clutch, wherein a pressure transfer device extends between the disk packet and the operating lever device through at least one pass-through opening, which is cut out in a carrier device. The seal device is disposed between the inner disk carrier and the pass-through opening.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: January 25, 2011
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Ivo Agner, Gabor Izso, Oliver Noehl
  • Patent number: 7874273
    Abstract: A camshaft adjuster (1), in which an adjustment of the camshaft adjuster is limited by a limiting element (11) is provided. The limiting element (11) is connected by an eccentric to the associated component (3), in particular, to an inner rotor. By use of an eccentric adjustment of the limiting element, the position of the limiting element in the peripheral direction can be adapted according to the production conditions within the tolerance range. In this way, the mounting of the camshaft adjuster is simplified and the achievable accuracy of the limiting position is improved.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: January 25, 2011
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Steffen Hertrich, Lothar Schmitt
  • Patent number: 7874953
    Abstract: A stator torque transmitting assembly for a vehicle including a stator shaft connected to a stator in a torque converter for the vehicle and arranged to transmit torque from the stator during a torque conversion mode for the torque converter. In some aspects, the assembly includes a first planetary gear set with a first sun gear, a first planetary carrier, and a first ring gear. The first sun gear is rotationally connected to the stator shaft and the first carrier is grounded. A first transmission input shaft is rotationally connected to the first ring gear and to a second carrier in a second planetary gear set in a transmission in the vehicle. A second transmission input shaft, rotationally connected to a turbine in the torque converter, is rotationally connected to a second ring gear in the second planetary gear set.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: January 25, 2011
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Christopher Shamie, Jeffrey Hemphill
  • Patent number: 7876084
    Abstract: A method for the determination of a motor voltage limit, wherein a clutch actuator of an automated shift transmission remains motionless, including the steps of (a) raising or lowering a withstand voltage by an increment ?U, starting from a current withstand voltage (Ucurr), and (b) determining whether the clutch actuator moves under the changed withstand voltage.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: January 25, 2011
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Markus Baehr, Juergen Gerhart, Michael Schuhen
  • Publication number: 20110015013
    Abstract: A hydraulic tensioning system (1), which is used in traction mechanism drives, particularly chain drives of internal combustion engines, is provided. The tensioning system (1) includes a piston (3), which is designed in the shape of a crucible, subjected to a pressure by a pressure spring (8), guided in a linearly displaceable manner in a housing (2) and spring-loaded against a traction mechanism. Hydraulic fluid can flow out of a pressure chamber (5) depending on an actuating direction of the piston (3) via an overpressure valve (11) forming a damping device (22) and associated with the piston (3) or can enter via a one-way valve (7) of the housing (2) into the pressure chamber (5). The overpressure valve (11) encloses a plate valve (21) that is integrated in the piston (3), and a pressure spring (8) of the piston (3) surrounds an outside of the valve housing (12) of the overpressure valve (11).
    Type: Application
    Filed: June 13, 2008
    Publication date: January 20, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Dominik Hofmann, Roman Kern
  • Publication number: 20110011191
    Abstract: A ball-screw drive, which has a spindle nut arranged on a threaded spindle and an axial bearing which is arranged so as to act on the threaded spindle and which has a bearing part arranged so as to be rotatable relative to the threaded spindle. The bearing part is arranged so as to be captively retained on the threaded spindle by a captive retention means.
    Type: Application
    Filed: July 2, 2010
    Publication date: January 20, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Juergen OSTERLAENGER, Josef MIKO, Stefanie BAERTHLEIN
  • Publication number: 20110015015
    Abstract: A mechanical tensioner that includes a pulley arm with a tension pulley for a tension element drive of an internal combustion engine. The pulley arm is mounted to a mounting base that is fixedly attached to the engine. A spring that functions in compression and torsion is located about a pivot axis on the mounting base, with one end connected to the pulley arm and the other end attached to the mounting base. The spring provides torsion to the pulley arm to maintain tension on the tension element, and is also compressed between a mounting flange of the pulley arm and a support flange on the mounting base to transmit an axial force between the pulley arm and an outer hub that is fixed to the mounting base. A shaped bush which functions at least as a damping element, and can also function as a bearing, is located in the space between the outer hub and the pulley arm.
    Type: Application
    Filed: May 28, 2010
    Publication date: January 20, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventor: Ross Gresley
  • Publication number: 20110015014
    Abstract: A tensioning system (1) configured as a module solution and which has a drive gear (3) and a driven gear (5) connected via a tensioning element (4). A carrier element (8) is disposed in an installation space (6) that is limited by the tensioning gears, the drive gear (3) and the driven gear (5) and a tight side (13) and a slack side (16) of the tensioning element (4). All components of the tensioning system are captively combined via the carrier element (8) to form an externally pre-mountable assembly, that can be delivered, for example, to an internal combustion engine.
    Type: Application
    Filed: September 17, 2008
    Publication date: January 20, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Petrus Hubertus Kroon, Michael Kastner
  • Publication number: 20110011692
    Abstract: A drive train, in particular, a hybrid drive train with a torque converter, which can be operatively connected with a drive through a clutch. The clutch includes an emergency operation actuation device with at least one emergency operation actuation element, which defines a centrifugal oil cavity which includes oil and which is coupled with the drive.
    Type: Application
    Filed: July 15, 2010
    Publication date: January 20, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Michael Kuehnle, Thorsten Krause, Dominique Engelmann, Parviz Movlazada, Benjamin Voegtle
  • Publication number: 20110012045
    Abstract: A non-return valve for a hydraulic tensioning system which is used in traction mechanism drives of internal combustion engines and which manipulates a hydraulic fluid flow between a pressure chamber and a reservoir. The non-return valve has a valve body which is inserted in a housing and which is embodied as a ball and which, when the non-return valve is closed, is supported in a spring-loaded fashion against a valve seat of a through-flow cross-section. When the non-return valve is open, the valve body is assigned to a valve seat of the housing and the flow cross-section (19) of the valve seat ensures a fluid flow through the non-return valve.
    Type: Application
    Filed: December 9, 2008
    Publication date: January 20, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Christian Schaefer, Thomas Kraft, Bernd Hartmann
  • Publication number: 20110007993
    Abstract: A method for filling a ball roller bearing with roll bodies, and a ball roller bearing, which is filled according to the method and has an outer and an inner bearing ring and a plurality of ball rollers, which are arranged between these bearing rings and have two side surfaces, which are flattened symmetrically from a basic spherical shape, parallel to one another and held at uniform distances from one another by a bearing cage. The ball rollers roll in groove-shaped raceways recessed in the inner face of the outer bearing ring and the outer face of the inner bearing ring. The ball roller bearing is filled by an eccentric axial, tilting fitting of the ball rollers through the interval between the bearing rings in the form, that the filled ball roller bearing is filled to the extent of about 94% and has a service life of up to 253%.
    Type: Application
    Filed: November 10, 2008
    Publication date: January 13, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Horst Doeppling, Ernst Geiger, Heinrich Hofmann, Joachim Muser
  • Publication number: 20110005482
    Abstract: A device for variably adjusting control times of gas exchange valves of an internal combustion engine. The device has a drive element, an output element, a rotation angle limiting device, a control valve and counter-working pressure chambers. Phase adjustment between the output and drive element is initiated by applying pressure to one of the pressure chambers while discharging the other pressure chamber. The rotation angle limiting device, which can be transferred from a locked state into an unlocked state due to pressure, prevents phasing when locked and allows phasing when unlocked. The control valve has a valve housing and a control piston. An inflow connection, an outflow connection, a first and a second working connection and a third working connection are embodied on the valve housing. The working connections are offset in relation to other and do not overlap on the valve housing.
    Type: Application
    Filed: November 24, 2008
    Publication date: January 13, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Jens Hoppe, Andreas Roehr
  • Publication number: 20110006760
    Abstract: A bottom bracket with a torque sensor unit. The bottom bracket has at least one pedal crank, a shaft that is non-rotatably connected to the at least one pedal crank, and a torque detection device for detecting a torque in the region of the shaft. The torque detection device has a first magnetization and a sensor which detects a change of the first magnetized due to a torque passed into the shaft. The bottom bracket allows a reliable and fast detection of torques, especially of the different torques of both pedal cranks. Utilizing the shaft, which is designed as a hollow shaft and the first magnetization, which is arranged on at least one section of the shaft.
    Type: Application
    Filed: December 6, 2008
    Publication date: January 13, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Stefan Glueck, Michael Pausch, Frank Benkert
  • Publication number: 20110005214
    Abstract: A hydraulic system for actuating a motor vehicle transmission by a control hydraulic power source that includes a control hydraulic pump for providing a high hydraulic pressure, a control pressure accumulator, and a low-pressure hydraulic pump for providing low-pressure volumetric flow of hydraulic fluid for operating a low-pressure hydraulic component. The low-pressure pump is operatively drivingly connected with the control hydraulic pump that is connected in a charged manner with the control pressure accumulator and with a transmission actuator.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 13, 2011
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventor: Marco GRETHEL
  • Publication number: 20110007994
    Abstract: A segment rolling bearing for an axial hydraulic pump, which can be integrated in a simple way. The segment rolling bearing has an outer raceway carrier, an inner raceway carrier, a plurality of rolling bodies, and a cage. The rolling bodies are arranged in the cage such that they roll between the outer raceway carrier and the inner raceway carrier in such a way that the outer raceway carrier can be pivoted about a common pivot axis with respect to the inner raceway carrier. The cage is connected to the inner and/or to the outer raceway carrier directly and captively in at least one connecting region, at least in the radial direction with respect to the common pivot axis.
    Type: Application
    Filed: June 8, 2010
    Publication date: January 13, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Harald VORNEHM, Peter DECKER, Michael PAUSCH, Klaus DRESCHER
  • Publication number: 20110000330
    Abstract: The ball nut of a ball screw at the inner circumference of which a ball groove is provided, wound helically about the longitudinal axis for rolling balls, and at its outer circumference a roller bearing is arranged for rotatably supporting the ball nut, wherein the roller bearing has an inner ring which is supported by means of a support ring arranged on the ball nut in the axial support direction, wherein the support ring is arranged as a result of material deformation in the axial support direction with positive engagement on the ball nut.
    Type: Application
    Filed: July 2, 2010
    Publication date: January 6, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Wolfgang DOEPPLING, Dieter ADLER, Horst STEINBINDER, Marco MEISBORN