Patents Assigned to Schaeffler KG
  • Patent number: 8043007
    Abstract: Hydrostatic profile rail guide with a guide carriage that is hydrostatically mountable on a guide rail, whereby the guide carriage features a back and two sides that are attached to the back, between which the guide rail is located, whereby the back features a mounting surface on the side facing away from the guide rail for the mounting of, for example, a machine part, with the mounting surface concave when seen in the longitudinal direction of the guide rail.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: October 25, 2011
    Assignee: Schaeffler KG
    Inventor: Dietmar Rudy
  • Patent number: 8043008
    Abstract: The invention relates to a rolling-element bearing unit for rotatably bearing two components, nested into each other, which rotate about separate rotational axes that are at an angle to each other, especially the roll core and roll sleeve of a width stretching roll for a paper machine. The rolling-element bearing unit according to the invention comprises an outer rolling-element bearing for rotationally bearing the outer component, a pivoting bearing carrying the outer rolling-element bearing and allowing adjustment of the angle of the outer rolling-element bearing, an angularly adjustable inner rolling-element bearing for rotationally bearing the inner component, and an eccentric which consist of an inner and an outer eccentric ring via which eccentric rings the centers of the two rolling-element bearings can be adjusted in relation to each other.
    Type: Grant
    Filed: August 25, 2007
    Date of Patent: October 25, 2011
    Assignee: Schaeffler KG
    Inventor: Martin Grehn
  • Patent number: 8042502
    Abstract: A valve drive with a decompression brake for an internal combustion engine, which has a camshaft with a cam, a rocker arm for transmitting the cam stroke to a gas exchange valve, a pivot bearing supporting the rocker arm, and a hydraulic valve play compensating element arranged in force flow between the cam and gas exchange valve. The valve play compensating element is fixed in the engine and valve drive also has a secondary lever with a first and second lever section. The secondary lever is angularly connected, between the lever sections, to a lever support formed on the rocker arm, is supported with the first lever section on the valve play compensating element and actuates the gas exchange valve by the second lever section. The effective lever arm of the first lever section is considerably greater than the effective lever arm of the second lever section.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: October 25, 2011
    Assignee: Schaeffler KG
    Inventor: Oliver Schnell
  • Patent number: 8043180
    Abstract: A tensioner (1, 1?) for a traction mechanism such as a belt, chain or the like, with a tensioning lever (4) which can be acted on by a helical spring (2), can pivot about a stationary shaft and on which a tensioning element is provided for abutment against the traction mechanism to be tensioned. The helical spring (2) is held at its ends by spring receptacles (6, 7) and a means (8, 9, 71) is provided for delimiting the spring excursion.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: October 25, 2011
    Assignee: Schaeffler KG
    Inventors: Rainer Pflug, Matthias Schmidl, Roland Arneth, Stefan Mack
  • Patent number: 8042668
    Abstract: The three mode overrunning bi-directional clutch has a first mode where the slipper race and fixed race are coupled and power is not transmitted between the inner input shaft and the outer shaft. A second mode where the slipper race is uncoupled from the fixed race and the slipper race engages the outer shaft to provide power transmission between the inner shaft and the outer shaft. The third mode couples the slipper race to the fixed race but uses a brake to provide radial force against the slipper race to allow for partial engagement between the slipper race and the outer shaft. This third mode allows for a smooth transition between the first mode and the second mode.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: October 25, 2011
    Assignee: Schaeffler KG
    Inventor: Brian Lee
  • Patent number: 8043186
    Abstract: The two stage check valve for the automatic transmission system provides a first member that opens in response to a first pressure and a second member which opens in response to a second pressure where the second pressure is higher than the first pressure.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: October 25, 2011
    Assignee: Schaeffler KG
    Inventors: Ross Gresley, Eric Nelson
  • Patent number: 8037857
    Abstract: A hydraulic support element for a switchable cam follower of a valve drive of an internal combustion engine, which has a pot-like housing with a bore, a pressure piston formed in one piece with an external casing and head projecting over an edge of the housing and a high pressure space for a hydraulic medium. The high pressure space is supplied, via a non-return valve from a first reservoir space, which is fed via first passages in the housing and pressure piston. A second reservoir space is formed in the pressure piston axially above the first reservoir space and is filled by second passages in the housing and pressure piston. From the second reservoir space a hydraulic medium is conducted to the cam follower via an opening in the head. The reservoir spaces are separated by a ball around which the internal wall of the pressure piston is wrapped.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: October 18, 2011
    Assignee: Schaeffler KG
    Inventors: Peter Sailer, Werner Bretting, Norbert Geyer
  • Patent number: 8033748
    Abstract: An arrangement for the articulated connection of wagons of a multiple-element vehicle with the aid of joint having spherical bearing faces, wherein comprising a radial pivoting bearing having an inner ring with a convexly curved spherical bearing face and an outer ring with a concavely curved spherical bearing face, the radial pivoting bearing being installed with a vertical bearing axis Z and the inner ring and the outer ring each being held by one connecting construction, the bearing of asymmetric configuration, the inner ring and the outer ring being arranged offset with respect to one another in the direction of the bearing axis Z, and, that in relation to a center point (M) of the inner ring, the bearing faces are larger in the direction of a negative Z axis extending downwards from the center point along the bearing axis, than the bearing faces in the direction of a positive Z axis extending upwards from the center point along the bearing axis.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: October 11, 2011
    Assignee: Schaeffler KG
    Inventor: Andreas Krome
  • Patent number: 8033737
    Abstract: A rolling bearing which has at least one bearing ring and a plurality of rollers. The bearing ring has a raceway for the rollers and at least one lateral rim for axially guiding the rollers. The roller has front face facing the rim and the rim has a rim hearing surface facing the roller. At least sections of at least the front face or the rim bearing surface have a toroidal camber in the direction of the rim bearing surface or the front face.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: October 11, 2011
    Assignee: Schaeffler KG
    Inventor: Jan De Mul
  • Publication number: 20110239815
    Abstract: A drive device for a machine, which has a drive shaft that can be rotated about an axis, and two driving cranks which are connected to the shaft in an angularly rigid manner in relation to the axis thereof. In order to determine the torque applied to the drive shaft in a simple and economical manner, the drive device has at least one magnetostrictive body connected to the driving cranks in a fixed manner, and a magnetic field sensor for measuring the magnetic stray field of the magnetostrictive body.
    Type: Application
    Filed: May 8, 2008
    Publication date: October 6, 2011
    Applicant: SCHAEFFLER KG
    Inventors: Harald Grab, Michael Pausch
  • Patent number: 8025038
    Abstract: A cam follower for actuating a gas exchange valve of an internal combustion engine, which has a lifting body cold formed from sheet metal and that forms, on a valve-sided lifting section which has two lateral walls and a first base section connecting the walls, a cross-sectional profile which is open towards the gas exchange valve in a U-shaped manner, and on a joint-sided lifting section that has lateral walls and a second base section connecting the walls, a modifiable cross-sectional profile which is initially open towards the gas exchange valve in a U-shaped manner the U-shape adopting a trough shape that has a protruding annular cavity. The trough shape adjacent to an annular cavity on the side of the valve-sided lifting section is M-shaped and has two free recesses open towards the gas exchange valve and extend respectively between one of the lateral walls and the second base section.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: September 27, 2011
    Assignee: Schaeffler KG
    Inventors: Helmut Engelhardt, Christian Minner
  • Patent number: 8025129
    Abstract: Parking brake actuator is an overrunning single directional clutch which provides for infinite locking positions.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: September 27, 2011
    Assignee: Schaeffler KG
    Inventor: Ross Gresley
  • Publication number: 20110224039
    Abstract: A process for producing a sliding bearing bush in a cast component of lightweight metal, preferably a tensioning lever of a belt tensioner. The process includes the following steps: a die, which forms the seat for a sliding bearing bush to be pressed in and has radially outer groove drawing noses, is inserted into a lightweight metal pressure die-casting die. After the liquid lightweight metal has been injected into the lightweight metal pressure die-casting die and subsequently solidified, the die is then drawn out of the lightweight metal pressure die-casting die in such a way that an aperture, which has a groove profile, is formed as a seat for the sliding bearing bush to be pressed in.
    Type: Application
    Filed: July 3, 2008
    Publication date: September 15, 2011
    Applicant: SCHAEFFLER KG
    Inventors: Michael Huss, Hermann Stief, Thomas Kraft
  • Patent number: 8011832
    Abstract: A linear guide, which has a guide carriage that is mounted in a longitudinally moveable manner on a guide rail and to which an additional component, for example a measuring head, can be fastened by a fastening device. The fastening device has a pin which is fastened to the guide carriage at the end side. The pin has a fastening section to which the additional component can be fastened, that projects from the guiding carriage at the end side.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: September 6, 2011
    Assignee: Schaeffler KG
    Inventors: Martin Menges, Dietmar Rudy, Michael Rebmann
  • Publication number: 20110209677
    Abstract: A hydraulic assembly (1), particularly for an electrohydraulic valve control of an internal combustion engine, and a hydraulic valve (2) for forming such an assembly are provided. The assembly includes a hydraulic valve with a valve housing (4) and a valve carrier (3) with a valve receiver (5) in which the valve housing is received. The valve housing has a first circumferential groove (9) and a second circumferential groove (10), with the grooves (9 and 10) being defined respectively by groove walls (13, 15 and 14, 16) and extending on two sides of a hydraulic connection (6) which extends through a peripheral wall of the valve housing (4). A bead (11, 12) formed by a plastic deformation of material of the valve carrier being received in each of the two said grooves (9, 10), so that the groove walls and the beads not only fix the valve housing in the valve receiver by positive engagement but also cooperate with each other to hydraulically seal the valve housing.
    Type: Application
    Filed: December 14, 2009
    Publication date: September 1, 2011
    Applicant: SCHAEFFLER KG
    Inventors: Thomas Krämer, Marco Meisborn, Steffen Alvermann, Johannes Weninger, Henrik Meinel
  • Patent number: 8007185
    Abstract: The radial rolling bearing has an outer bearing ring, an inner bearing ring, and spherical rollers arranged between bearing rings. The spherical rollers have two flat side faces arranged parallel to one another. The spherical rollers are retained with uniform spacing to one another in the peripheral direction by a bearing cage. The spherical rollers have a width between their side faces of approximately 70% of the diameter of their spherical basic shape. The running faces of the rollers roll in two groove-shaped raceways which are formed in the inner side of the outer bearing ring and in the outer side of the inner bearing ring. At least one of the axial rims which delimit the groove-shaped raceways is reduced in radial height such that the radial bearing can be equipped with an increased number of spherical rollers in an axial assembly process.
    Type: Grant
    Filed: December 9, 2006
    Date of Patent: August 30, 2011
    Assignee: Schaeffler KG
    Inventors: Heinrich Hofmann, Horst Doppling, Georg Goppelt
  • Patent number: 8007182
    Abstract: The invention relates to an anti-friction bearing comprising a first bearing race, a second bearing race and a plurality of anti-friction bodies that are located between the first bearing race and the second bearing race. According to the invention, the anti-friction bearings are arranged in several rows, which are asymmetrical in the longitudinal direction of the anti-friction bearing in relation to any plane that runs perpendicularly to said longitudinal direction of the anti-friction bearing.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: August 30, 2011
    Assignee: Schaeffler KG
    Inventors: Christian Mock, Peter Niebling, Berthold Krautkraemer, Ralf Heiss, Kay Schumacher
  • Patent number: 8007180
    Abstract: The invention relates to a sealing arrangement that seals at least one radial intermediate space between at least one inner bearing ring and at least one outer bearing ring. Said sealing arrangement comprises at least one first support that supports at least one elastic seal and a second support which supports at least one encoder located outside the intermediate space. The encoder is radially oriented towards at least one sensor that is disposed above the encoder in a radially outward direction.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: August 30, 2011
    Assignee: Schaeffler KG
    Inventors: Peter Niebling, Jens Heim, Heinrich Hofmann, Darius Dlugai, Roland Langer
  • Patent number: 8007183
    Abstract: The invention relates to a double-row angular contact anti-friction bearing having a split outer bearing ring, a one-piece inner bearing ring, and anti-friction bodies located in two rows between the two rings. The outer bearing ring is split axially into two individual rings. To permit simple, reliable and secure transport of the bearing, the individual outer bearing rings are interconnected by a connecting element in a positive fit that allows play and the outer surfaces of the individual rings have at least one recess, which is spanned by the connecting element. At least the recess of an individual ring has a groove, in which a hook element on the connecting element engages in a positive fit and the individual rings can be twisted in relation to one another.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: August 30, 2011
    Assignee: Schaeffler KG
    Inventors: Ralf Ansorge, Rudolf Zeidlhack
  • Patent number: 8007179
    Abstract: The invention relates to a wheel bearing arrangement which enables a hub to be mounted in at least one non-rotating external ring such that it can rotate about the rotational axis of the hub. The wheel bearing arrangement comprises at least one sealing arrangement and one encoder and the sealing arrangement is secured to the hub side on the side of the wheel bearing arrangement whereon a radial flange extends in a radial manner from the hub. The encoder is actively connected to the sealing arrangement.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: August 30, 2011
    Assignee: Schaeffler KG
    Inventors: Jens Heim, Peter Niebling, Gottfried Ruoff, Darius Dlugai, Christian Mock