Patents Assigned to Schaeffler KG
  • Patent number: 8753018
    Abstract: A wheel bearing useful for automobiles includes an axle shaft and an axle tube around the shaft, inner and outer bearing races defined respectively at the outer periphery of the shaft and the inner periphery of the tube. A circumferential row of balls and a circumferential set of rollers disposed axially apart between the inner and outer bearing races to form a ball bearing and a roller bearing, in parallel, for supporting the axle shaft within the axle tube.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: June 17, 2014
    Assignee: Schaeffler KG
    Inventor: Lawrence Cislo
  • Patent number: 8327542
    Abstract: The invention relates to a method for the production of a drop-forged balancing shaft for a mass balancing gear of an internal combustion engine. The balancing shaft has an unbalanced plane formed by the rotational axis thereof and an eccentric mass center of gravity, and at least one bearing journal, the outer lateral surface of which serves as a track for a rolling bearing supporting the balancing shaft in the internal combustion engine. To this end, the balancing shaft is to be forged in a forging die having a parting plane extending in the direction of the rotational axis and rotated in relation to the unbalanced plane.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: December 11, 2012
    Assignee: Schaeffler KG
    Inventors: Siegfried Tisch, Klaus Weigand
  • Patent number: 8202170
    Abstract: Example aspects of the present invention broadly comprise at least two concentric rings with complementary ramped surfaces, at least one of the rings being rotatable relative to another one of the rings so that contact is made at the ramped surfaces. The complementary ramped surfaces form respective circumferences of the rings. At least one of the ramped surfaces may have a sinusoidal profile, or a profile forming at least one of a straight line, concave, or convex. In some example embodiments of the invention, a first one of the rings is a coupling member and a second one of the rings is a tubular slipper with a friction surface radially opposite of the ramped surface. The tubular slipper is arranged to radially expand or contract upon contacting the coupling member.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: June 19, 2012
    Assignee: Schaeffler KG
    Inventors: Tomas Smetana, Brian Lee
  • Patent number: 8197145
    Abstract: A revolving joint comprising at least one anti-friction bearing and an electromotive drive unit. The anti-friction bearing is in contact with at least one row of rolling bodies arranged in a row rotating the joint around the rotational axis of the anti-friction bearing. The rolling bodies are in contact with at least one race that can be driven to rotate by the drive unit.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: June 12, 2012
    Assignee: Schaeffler KG
    Inventors: Frank Neubert, Franz-Josef Ebert, Jurgen Klutsch, Gerold Strum
  • Publication number: 20120132499
    Abstract: A wheel spindle drive element for a wheel disconnect system. The wheel spindle assembling onto an outer diameter of a spindle, displacing material to form a joint with high torque transmission characteristics.
    Type: Application
    Filed: September 20, 2011
    Publication date: May 31, 2012
    Applicant: SCHAEFFLER KG
    Inventor: Mark Brown
  • Patent number: 8187128
    Abstract: The invention relates to a clamping device comprising a pivoting arm on which a clamping roll is rotatably arranged. In order to damp pivoting movements of the pivoting arm, a damping device is provided in the region of a pivoting axis X. Furthermore, the pivoting arm is supported by a tension spring device which ensures a frictional arrangement of the clamping roll on a traction mechanism, in the assembled state.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: May 29, 2012
    Assignee: Schaeffler KG
    Inventors: Stefan Mack, Matthias Schmidl, Rainer Pflug
  • Patent number: 8170811
    Abstract: A drive device, which has a drive shaft mounted in such a way as to rotate about an axis, two driving cranks which are connected to the drive shaft in an angularly rigid manner in relation to the axis in the peripheral direction, and an output element which is connected to the drive shaft and transmits torque between the drive shaft and a load element. To enable the measurement of the torque transmitted by the shaft as easily and economically as possible, the drive device has at least one magnetostrictive sensor which is connected to the drive shaft in a fixed manner and axially arranged between a driving crank and the output element.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: May 1, 2012
    Assignee: Schaeffler KG
    Inventors: Harald Grab, Michael Pausch
  • Patent number: 8162786
    Abstract: The invention relates to a traction mechanism drive (1) of an internal combustion engine, which comprises an output member (2) and also a drive member (3) in which the associated belt pulleys (5, 7) are connected via a traction mechanism (6). In this case, the pivotably arranged drive member (3) is supported via a spring means (9) which can pivot, in conjunction with a deflection lever (13), between an assembly position (17) and an operating position (18).
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: April 24, 2012
    Assignee: Schaeffler KG
    Inventors: Andreas Lang, Bernd Sebald
  • Patent number: 8161925
    Abstract: Proposed is a valve drive for an internal combustion engine, having a gas exchange valve (11) and having a valve actuating element (4) which has a contact face (8) for an end face (9) on a valve shank (10) of the gas exchange valve (11) which is actuated in the opening and closing direction by the valve actuating element (4). Here, the contact face (8) and/or the end face (9) should be provided with a wear prevention layer (12) which is composed of at least one metal-free amorphous hydrocarbon layer with sp2 and sp3 hybridized carbon.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: April 24, 2012
    Assignee: Schaeffler KG
    Inventors: Oliver Schnell, Tim Matthias Hosenfeldt
  • Patent number: 8161929
    Abstract: The invention proposes a switchable tappet (1) of a valve train of an internal combustion engine, said tappet comprising a hollow cylindrical housing (3) comprising a bottom (2), an inner element (5) being guided for relative axial displacement in a bore (4) of the housing (3), an at least indirect support for a gas exchange valve extending on a cam-distal front end (6) of the inner element (5), two diametrically opposing pistons as coupling elements (8) being arranged in a radial bore (7) of the inner element (5), which coupling elements (8), for effecting coupling [full valve lift], can be displaced partly beyond a parting surface (9) between the housing (3) and the inner element (5) into an entraining surface (12) of the housing (3) by the force of a compression spring (10a) clamped between inner front ends (10) of the coupling elements (8), wherein the entraining surface (12) is an direct constituent of a separate annular member (13) that is fixed in a cam-distal region of the bore (4) of the housing (3),
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: April 24, 2012
    Assignee: Schaeffler KG
    Inventors: Mario Kuhl, Lothar von Schimonsky, Norbert Nitz, Lucia Hinkovska, Sandra Schäfer
  • Patent number: 8157069
    Abstract: In an overrunning clutch (1), an annular space is formed between an inner raceway (3) and an outer raceway, in which annular space is arranged a cage (5) which has cut-outs (4) for holding clamping bodies (2), with each cut-out (4) being delimited by transverse webs (10) which run in the axial direction, and with in each case one spring element (6), which projects into a cut-out (4) and exerts a force on a clamping body (2), adjoining the transverse webs (10). At that side of the transverse web (10) which faces away from the spring element (6), at least one retaining lug (4), which serves to retain a clamping body (2), extends into a cut-out (4).
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: April 17, 2012
    Assignee: Schaeffler KG
    Inventor: Frieder Altmann
  • Patent number: 8157452
    Abstract: A radial roller bearing for storing shafts in wind turbine transmissions, which has an external bearing ring with an inner runway, an internal bearing ring arranged coaxial thereto provided with an external runway, and a plurality of roller bodies that displace on the runways between the hearing rings held at regular intervals by a bearing cage. To prevent slip, the roller bodies are replaced by hollow rollers that have a greater diameter and a smaller elasticity module than the roller bodies ensuring, when the radial roller bearing is in the load-free state, permanent contact with the bearing rings, a permanent drive of the bearing cage and that the roller bodies have kinematic rotation. The hollow rollers have a higher bending strength, and their internal cover surface has a maximum surface roughness of Rz?25 ?m preventing localized peaks of tension, without any disaggregation in the axial direction.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: April 17, 2012
    Assignee: Schaeffler KG
    Inventors: Bernd Endres, Christian Hoffinger, Alban Kronenberger, Tobias Mueller
  • Patent number: 8157451
    Abstract: A bearing arrangement of a roller-mounted unbalanced mass shaft. The rollers are in punctiform contact with one of the raceways at a low shaft rotational speed, and in linear contact with both raceways at a high shaft rotational speed.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: April 17, 2012
    Assignee: Schaeffler KG
    Inventors: Peter Solfrank, Matthias Fick, Alexander Tasche
  • Patent number: 8152381
    Abstract: A rolling bearing which has a sealing arrangement and a sensor component, particularly an encoder, which is fitted with a mounting flange. The rolling bearing further has an inner ring and an outer ring between which rolling members are arranged. The sealing arrangement is equipped with at least one sealing element between the inner ring and the outer ring. In order to provide a rolling bearing which can easily be retrofitted with a retrofit sensor, particularly a retrofit encoder, and is well protected against environmental influence, the sensor component that is fitted with the mounting flange is designed as a retrofit part, while at least one water discharge port is disposed in the region of the mounting flange.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: April 10, 2012
    Assignee: Schaeffler KG
    Inventors: Wilhelm Walter, Alexander Haepp, Erwin Hartmann
  • Patent number: 8143735
    Abstract: The present invention relates to an electric starting device (1) for an internal combustion engine (5), which electric starting device (1) comprises an electric starter (4) and a starter-generator (2) which is assigned to a traction mechanism drive (3). The starting of the internal combustion engine (5) may take place by means of the electric starter (4) or the starter-generator (2) in each case individually or in a combination of the two units. Also provided is a start-stop device of the internal combustion engine (5), in which a controlled supply of power to the starter-generator (2) is provided in synchronization with a start by means of the electric starter (4).
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: March 27, 2012
    Assignee: Schaeffler KG
    Inventor: Hans Bauer
  • Patent number: 8136495
    Abstract: A switchable support element (1) for a valve train of an internal combustion engine, said support element (1) comprising a housing (2) that can be arranged through an outer peripheral wall (3) in a reception of the internal combustion engine and in whose bore (4) an axially movable inner element (6) extends, a head (5) of the inner element (6) protruding beyond an edge (7) of the housing (2), coupling elements (8) being associated to the inner element (6) for a selective coupling of the inner element (6) in an axially extended position of the inner element (6) to the housing (2), and said inner element (6) being biased by at least one lost motion spring (9) in a direction leading out of the housing (2), wherein the coupling elements (8) are at least one slide which, in case of uncoupling, is positioned in a guide (10) of the housing (2) extending in radial or secant direction and which comprises a flattened upper side (12) starting from a radially inner front end (11) of the slide, and this flattened upper si
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: March 20, 2012
    Assignee: Schaeffler KG
    Inventors: Joachim Seitz, Bodo Rörig
  • Patent number: 8136992
    Abstract: A hydrostatic mounting of longitudinally displaceably arranged machine parts, which have pressure pockets for hydraulic fluid for building up a hydrostatic pressure between two machine parts, gaps for the hydraulic fluid which are adjacent to the pressure pockets and are delimited by gap faces of the two machine parts, drainage for the reception of hydraulic fluid, and at least one seal arranged between the machine parts and surrounding the drainage sealing against leakage of hydraulic fluid out of the hydrostatic mounting. At least one circumferential portion of the seal has an outer sealing lip and an inner sealing lip. The inner sealing lip is adjacent to the gaps, and a vacuum-loadable drainage portion of the drainage is arranged between the two sealing lips.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: March 20, 2012
    Assignee: Schaeffler KG
    Inventors: Dietmar Rudy, Wolfgang Bauer
  • Patent number: 8132551
    Abstract: A switchable cam follower of a valve train assembly of an internal combustion engine is proposed, with an external lever that encloses an internal lever with its arms, of which components, that can deviate from each other flexibly, run on an axis that is attached to a valve side end, and the internal lever on an underside on the valve side end possesses a mechanism for a gas exchange valve as well as a complementary surface at the other end for storage on a head of a support element. A special characteristic is that guidance plates for the gas exchange valve come out from the underside of the external lever. That way, the switchable cam follower can be made narrower at least on the valve side. In addition, development of the mechanism for the gas exchange valve on the internal lever is simplified.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: March 13, 2012
    Assignee: Schaeffler KG
    Inventor: Debora Manther
  • Publication number: 20120043174
    Abstract: The over-running bi-directional clutch is used to synchronize gears in a transmission to allow for locking and unlocking the gears in an efficient manner.
    Type: Application
    Filed: October 11, 2011
    Publication date: February 23, 2012
    Applicant: SCHAEFFLER KG
    Inventors: Brian Lee, Jeffrey Hemphill
  • Patent number: RE44864
    Abstract: In a switching element (1) for a valve train of an internal combustion engine for switching to different valve lifts, said switching element (1) comprising an outer element (2) having an inner element (4) arranged for axial displacement therein, each of the outer and the inner element (2, 4) comprising a reception (11, 9) aligned to each other in a relative position, at least one piston (10) being arranged in at least one of the receptions (11, 9) for sliding toward the other of the receptions (9, 11) to couple the inner element (4) to the outer element (2) in said relative position, and a high-position stop for defining said relative position being arranged between the inner and the outer element (4, 2), at least one part of the high-position stop is configured as an adjustable, separate element (13). This element (13) cooperates through a preferably conical section (15) of its outer periphery with a complementary chamfer (18) on one end (17) of a guide (16) in the outer element (2).
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: April 29, 2014
    Assignee: Ina Schaeffler KG
    Inventors: Hermann Wenisch, Mario Kuhl, Peter Sailer, Oliver Schnell