Patents Assigned to Neumayer Tekfor Holding GmbH
  • Patent number: 8381615
    Abstract: A shaft, such as a camshaft for use in the internal combustion engine of a motor vehicle, in which the shaft includes a basic shaft body, a plurality of functional bodies, such as cams, mounted in axially spaced positions on the basic shaft body, and at least one balancing element mounted on the basic shaft body, in which the at least one balancing element is produced separately from the basic shaft body and from the functional bodies, and the functional bodies and the at least one balancing element are subsequently mounted on said basic shaft body, for example, by axial press fitting.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: February 26, 2013
    Assignee: Neumayer Tekfor Holding GmbH
    Inventors: Manfred Vogel, Matthias Derse, Matthias Bechtold, Thomas Winkler
  • Patent number: 8360921
    Abstract: A differential, having at least one drive gear, at least two axle gears, at least one compensating gear, and at least one connector element, in which the connector element is subjected to at least one first torque from the drive gear and transmits at least one second torque to at least one of the at least two axle gears. The drive gear is constructed in such a manner that the drive gear at least partially encloses at least one interior space, and the connector element is arranged at least partially inside the interior space enclosed at least partially by the drive gear.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: January 29, 2013
    Assignee: Neumayer Tekfor Holding GmbH
    Inventors: Eva-Maria Finkenzeller, Renald Kuempel, Kathrin Fuchs
  • Patent number: 8342146
    Abstract: A camshaft assembly, particularly for use in an internal combustion engine, having a shaft base body and a plurality of cam parts. In order to be able to selectively shut down individual cylinders, cam parts are provided with cams which are arranged so as to be rotationally fixed and axially displaceable in relation to the shaft base body. Depending on a desired sequence of axially fixed and axially displaceable cam parts, it is proposed to arrange the axially displaceable cam parts on a longitudinally extending profile in an axially displaceable manner and to push the axially fixed cam parts—insofar as these are necesary—over or across the receiving area for the axially displaceable cam parts and to secure them to the shaft.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: January 1, 2013
    Assignee: Neumayer Tekfor Holding GmbH
    Inventors: Markus Schuler, Renald Kuempel
  • Patent number: 8342973
    Abstract: A sliding joint for motor vehicles, having an inner race which includes inner running grooves, an outer race which includes outer running grooves, a cage, and balls. The inner running grooves are constructed parallel to each other in the axial dimension and include a displacement segment and a functional segment, and the outer running grooves are likewise constructed parallel to each other in the axial dimension and also include a displacement segment and a functional segment.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: January 1, 2013
    Assignees: Neumayer Tekfor Holding GmbH, Hofer PDC GmbH
    Inventor: Matthias Lutz
  • Publication number: 20120329565
    Abstract: A cage for a ball joint, the cage being configured annularly about a longitudinal axis and having an inner surface and an outer surface, two edges delimiting the inner surface and the outer surface and a window, in which the inner surface surrounds an inner space of the cage and two webs laterally adjoin the window. One edge of the cage has an offset relative to the longitudinal axis in relation to one of the two webs at the height of the window. A ball joint with a corresponding cage is also disclosed.
    Type: Application
    Filed: August 31, 2012
    Publication date: December 27, 2012
    Applicant: Neumayer Tekfor Holding GmbH
    Inventors: Volker Szentmihalyi, Arne Schmidbauer
  • Patent number: 8313587
    Abstract: A method for producing a torque transmission device such as a fixed constant velocity ball joint constructed as an opposed track joint in which the curvatures bases of the tracks of the joint deviate in their axial course from the curvatures of the ball contact lines. The method is characterized in that prior to the formation of a longitudinal profile of a joint component, the component is brought to an increased hardness by a hardening process and a diffusion layer is partially or completely removed in the region of the longitudinal profile.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: November 20, 2012
    Assignee: Neumayer Tekfor Holding GmbH
    Inventors: Volker Szentmihalyi, Mathias Lutz, Ekkehard Koerner
  • Patent number: 8277330
    Abstract: A connecting arrangement between a shaft journal and a constant velocity rotary joint having a joint inner part and a joint outer part, in which the shaft journal engages in a rotationally fixed manner in one of the joint parts, and the shaft journal and the constant velocity rotary joint are two components. At least one clamping sleeve is provided which is axially secured on one of the components, and which includes at least one elastic element which can lock in place in a contour of the other component.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: October 2, 2012
    Assignee: Neumayer Tekfor Holding GmbH
    Inventor: Volker Szentmihalyi
  • Patent number: 8267006
    Abstract: An axial piston intended for an axial piston machine and comprised of at least two components forming a driving part and a compressing part. To enable manufacture of the axial piston in an easy and inexpensive way while simultaneously reducing the weight, the components are manufactured by a solid forming process and joined together by a capacitor discharge welding process.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: September 18, 2012
    Assignee: Neumayer Tekfor Holding GmbH
    Inventors: Stefan Malm, Renald Kuempel
  • Publication number: 20120227689
    Abstract: A camshaft including a carrier element and a cam, in which the carrier element is composed of carrier segments arranged axially one behind the other along a longitudinal axis such that the carrier segments are axially displaceable relative to each other.
    Type: Application
    Filed: May 24, 2012
    Publication date: September 13, 2012
    Applicant: Neumayer Tekfor Holding GmbH
    Inventor: Matthias BECHTOLD
  • Patent number: 8262485
    Abstract: A vibration damper (2) that is effective in the direction of rotation of a drive shaft and has a small radial extension. For this purpose, a first shaft part (6) is provided as a sleeve (8) and a second shaft part (7) is provided as an inner part extending axially into the sleeve (8). The two shaft parts (6, 7) engage via rotary drivers in complementary negative profiles (15, 16) of an interposed elastic damper part (10) in the direction of rotation. In addition to the negative profiles, the damper part may be provided with recesses (40) which modify its damping characteristics.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: September 11, 2012
    Assignee: Neumayer Tekfor Holding GmbH
    Inventor: Martin Lehmann
  • Patent number: 8262487
    Abstract: A ball joint having an inner hub which has an inner hub axis and an outer surface, in which inner races and cage guide surfaces are arranged in the inner hub; an outer hub which has an outer hub axis and an inner surface, in which outer races and cage guide surfaces are arranged in the outer hub, and a cage which is ring-shaped and has a cage axis. The inner surface of the cage extends in the direction of the cage axis, the outer surface of the cage extends away from the direction of the cage axis, an inner race is constructed to extend straight and/or parallel to the inner hub axis, and an outer race is constructed to extend straight and/or parallel to the outer hub axis.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: September 11, 2012
    Assignee: Neumayer Tekfor Holding GmbH
    Inventor: Martin Lehmann
  • Patent number: 8231298
    Abstract: The invention relates to a connecting arrangement between a shaft end and a joint part in which a collar on a connecting nut engages behind a another collar on the shaft end or on the joint part or on a clamping nut which clamps a bearing on the shaft, and one of the collars is formed by a oval ring received in a groove which facilitates disassembly of the connection formed by the connecting arrangement.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: July 31, 2012
    Assignee: Neumayer Tekfor Holding GmbH
    Inventor: Volker Szentmihalyi
  • Publication number: 20120190494
    Abstract: A differential, having at least one drive gear, at least two axle gears, at least one compensating gear, and at least one connector element, in which the connector element is subjected to at least one first torque from the drive gear and transmits at least one second torque to at least one of the at least two axle gears. The drive gear is constructed in such a manner that the drive gear at least partially encloses at least one interior space, and the connector element is arranged at least partially inside the interior space enclosed at least partially by the drive gear.
    Type: Application
    Filed: March 2, 2012
    Publication date: July 26, 2012
    Applicant: Neumayer Tekfor Holding GmbH
    Inventors: Eva-Maria Finkenzeller, Renald Kuempel, Kathrin Fuchs
  • Publication number: 20120184381
    Abstract: A sliding joint for motor vehicles, having an inner race which includes inner running grooves, an outer race which includes outer running grooves, a cage, and balls. The inner running grooves are constructed parallel to each other in the axial dimension and include a displacement segment and a functional segment, and the outer running grooves are likewise constructed parallel to each other in the axial dimension and also include a displacement segment and a functional segment.
    Type: Application
    Filed: March 28, 2012
    Publication date: July 19, 2012
    Applicants: Hofer PDC GmbH, Neumayer Tekfor Holding GmbH
    Inventor: Matthias LUTZ
  • Patent number: 8221250
    Abstract: A damper unit (1) composed of two parts (2, 3) which are connected to rotate with one another and between which an axially elastic element (7) is disposed. Such damper units are used particularly for axial damping and for compensating slight axial misalignments of shafts in drive trains. To improve such damper units, particularly with respect to their external diameters, the axially acting energy storage device is compressed by a rotational movement produced by threads upon axial loading of the two parts.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: July 17, 2012
    Assignee: Neumayer Tekfor Holding GmbH
    Inventor: Tobias Roser
  • Patent number: 8221277
    Abstract: A differential provided with a drive wheel comprising two pairs of bevel gears disposed in a two-part housing, one of the pairs of bevel gears being a pair of axle bevel gears and the other pair of bevel gears being a pair of compensating bevel gears.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: July 17, 2012
    Assignee: Neumayer Tekfor Holding GmbH
    Inventors: Manfred Vogel, Volker Szentmihalyi, Matthias Derse
  • Publication number: 20120121360
    Abstract: A fastening device including at least one nut and at least one holding element, in which the at least one nut and the at least one holding element functionally engage each other, and a fastening system including such a fastening device.
    Type: Application
    Filed: January 23, 2012
    Publication date: May 17, 2012
    Applicant: Neumayer Tekfor Holding GmbH
    Inventors: Christoph KARL, Klaus Ehrler
  • Publication number: 20120111139
    Abstract: A camshaft comprising a carrier element and at least one cam in which the carrier element is comprised of at least two carrier sections, and a method of manufacturing such a camshaft.
    Type: Application
    Filed: January 19, 2012
    Publication date: May 10, 2012
    Applicant: Neumayer Tekfor Holding GmbH
    Inventors: Johannes TISCH, Markus Schuler
  • Publication number: 20120107069
    Abstract: A fastening device comprising at least one nut, at least one support unit, and at least one spring element, with the nut, the support unit, and the spring element being constructed and matched to each other in such a way that the spring element exerts a force between the nut and the support unit.
    Type: Application
    Filed: December 1, 2011
    Publication date: May 3, 2012
    Applicant: Neumayer Tekfor Holding GmbH
    Inventors: Klaus Ehrler, Mauro Moraes De Souza, Juliano Savoy, Paulo Cesar Sigoli
  • Publication number: 20120103130
    Abstract: A method of fabricating a camshaft including at least one carrier unit and at least one functional element. The carrier unit is produced at least in part from at least one first blank by way of at least one first machining method, and the functional element is produced at least in part from at least one second blank by way of at least one second machining method. The invention further relates to a camshaft produced by the method of the invention.
    Type: Application
    Filed: December 9, 2011
    Publication date: May 3, 2012
    Applicant: Neumayer Tekfor Holding GmbH
    Inventors: Matthias Bechtold, Christian Fuchs, Johannes Tisch