Patents by Inventor Jens Vortmeyer

Jens Vortmeyer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090033056
    Abstract: A stabilizer device for an axle of a motor vehicle. The axle has a roll stabilizer (2) and for each wheel at least one wheel guide control arm (1). The chassis-side articulation of the wheel guide control arm (1) is connected to an end area of the roll stabilizer (2) such that a twisting actuation of the roll stabilizer (2) takes place due to an inward deflection motion of the wheel guide control arm (1). An end of the roll stabilizer (2) is received in a hollow shaft (6) connected to the wheel guide control arm (1). The hollow shaft (6) is mounted in a chassis-side bearing flange (3) and the bearing flange (3) can be elastically connected to the vehicle. The stabilizer device is used especially to eliminate the conflicts of design goals between the requirements of uncoupling structure-borne noise and comfort of the chassis, on the one hand, and immediate response characteristic of the stabilizer, on the other hand.
    Type: Application
    Filed: February 28, 2007
    Publication date: February 5, 2009
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventor: Jens Vortmeyer
  • Publication number: 20080203694
    Abstract: Vehicle with a vehicle body (7); at least two wheels (3, 4), which are connected to the vehicle body (7) and are movable in relation thereto; a stabilizer (10), which has two legs (11, 12) connected mechanically to one another via a torsion spring (13); two actuators (16, 17), via which the legs (11, 12) are coupled with the wheels (3, 4); and a control means (21), by means of which the coupling characteristic of the actuators (16, 17) can be varied, wherein an additional spring (8, 9) each is led around each of the actuators (16, 17) on the outside, and wherein the legs (11, 12) are additionally connected to the wheels (3, 4) via the additional springs (8, 9).
    Type: Application
    Filed: September 18, 2006
    Publication date: August 28, 2008
    Inventors: Andreas Gartner, Jens Vortmeyer, Bernd Grannemann, Mauro Zanella, Metin Ersoy
  • Publication number: 20080191430
    Abstract: An actuator is provided for a two-part stabilizer, which builds up a spring rate in its opened position. A hydraulic absorbing unit (9) is arranged on the axle of the switchable coupling unit (8). The absorbing unit is connected to one stabilizer part (4), on the one hand, and to the other stabilizer part (5), on the other hand. The absorbing unit forms at least one pressure chamber (32) and a suction chamber (33) and assumes a blocked position in the locked position of the switchable coupling (8) and counteracts the relative twisting motion between the two stabilizer parts (4, 5) at a hydraulic spring rate in the opened position of the switchable coupling (8).
    Type: Application
    Filed: March 20, 2006
    Publication date: August 14, 2008
    Inventors: Bernd Grannemann, Andreas Hartmann, Jens Vortmeyer, Mauro Zanella
  • Publication number: 20080067769
    Abstract: A stabilizer arrangement is provided for a motor vehicle with a stabilizer (1), which is connected to the vehicle chassis and which is connected, on each side of the vehicle, to a spring-mounted wheel carrier part with a piston-cylinder unit (4, 4?). Each of the piston-cylinder units (4, 4?) includes at least one piston (8), which is movably arranged in a cylinder (7) and which splits the cylinder into a first and a second cylinder chamber (7a, 7b). The cylinder chambers are separate from one another. The piston-cylinder units (4, 4?) are respectively connected in an articulated manner, at one end, to an end of the stabilizer 1 and, at the other end, to a spring- mounted wheel carrier part. The piston (8) has a connecting line (14) that connects the first and second cylinder chambers. The respective connecting line (14) has a nonreturn valve (15), which acts in one direction. The piston (8) can be moved into at least one end position.
    Type: Application
    Filed: May 18, 2005
    Publication date: March 20, 2008
    Inventors: Metin Ersoy, Jens Vortmeyer
  • Publication number: 20080000710
    Abstract: A switchable stabilizer is provided as a compact assembly unit. The hydraulic system of the hydraulic and control part (9) may form a closed circuit with the piston-and-cylinder unit of the switchable coupling unit (3)and the hydraulic and control part (9) may be integrated in the cylindrical housing (10) of the switchable coupling (3).
    Type: Application
    Filed: September 28, 2005
    Publication date: January 3, 2008
    Inventors: Jens Vortmeyer, Andreas Hartmann, Bernd Grannemann, Mauro Zanella, Stefan Beetz, Torsten Baustian, Gerald Festner
  • Patent number: 7121559
    Abstract: A roll bar (1?) for a motor vehicle is proposed according to the present invention, with an unsplit torsion bar (5?), which is rotatably fastened to a vehicle chassis (3), is connected to two opposite wheel suspensions (4?) of the said axle of the vehicle, and has a torsion area for the elastic coupling of spring action movements of the opposite wheel suspensions (4?), wherein the roll bar (1?) has, furthermore, a first torsion tube (8?), which surrounds the unsplit torsion bar (5?) at least in a first partial area (B?) of its torsion area, and whose first end (8a?) is connected to the unsplit torsion bar (5?), rotating in unison therewith, and whose second end (8b?) can be connected to the unsplit torsion bar (5?) by means of a clutch arrangement (9?) in such a way that it selectively rotates in unison therewith, so that the torsional stiffness of the roll bar (1?) can be varied.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: October 17, 2006
    Assignee: ZF Lemforder Metallwaren AG
    Inventors: Metin Ersoy, Jens Vortmeyer
  • Patent number: 6874792
    Abstract: A stabilizer for a motor vehicle has a torsion bar divided into two shafts (1 and 2). The two shafts (1 and 2) are connected to one another via a mechanical coupling. The coupling has a locking disk, which is connected to a first of the two shafts (1), rotating with it in unison, and on the circumference of which at least one locking area is formed, and a housing (3), which is connected to the second shaft (2), rotating with it in unison. At least one locking mechanism (10), which is complementary to the locking area and engages the locking area in the coupled state of the coupling, is mounted movably on the housing (3). Furthermore, a spring (11), by which the locking mechanism (10) is pretensioned in the direction of the locking disk, is connected to the housing (3) and to the locking mechanism (10).
    Type: Grant
    Filed: May 27, 2002
    Date of Patent: April 5, 2005
    Assignee: ZF Lemförder Metallwaren AG
    Inventors: Jens Vortmeyer, Metin Ersoy
  • Publication number: 20040169346
    Abstract: A roll bar (1′) for a motor vehicle is proposed according to the present invention, with an unsplit torsion bar (5′), which is rotatably fastened to a vehicle chassis (3), is connected to two opposite wheel suspensions (4′) of the said axle of the vehicle, and has a torsion area for the elastic coupling of spring action movements of the opposite wheel suspensions (4′), wherein the roll bar (1′) has, furthermore, a first torsion tube (8′), which surrounds the unsplit torsion bar (5′) at least in a first partial area (B′) of its torsion area, and whose first end (8a′) is connected to the unsplit torsion bar (5′), rotating in unison therewith, and whose second end (8b′) can be connected to the unsplit torsion bar (5′) by means of a clutch arrangement (9′) in such a way that it selectively rotates in unison therewith, so that the torsional stiffness of the roll bar (1′) can be varied.
    Type: Application
    Filed: December 8, 2003
    Publication date: September 2, 2004
    Inventors: Metin Ersoy, Jens Vortmeyer
  • Publication number: 20040084857
    Abstract: Stabilizer for a motor vehicle with a torsion bar divided into two shafts 1 and 2, wherein the two shafts 1 and 2 are connected to one another via a mechanical coupling. The coupling has a locking disk, which is connected to a first of the two shafts 1, rotating with it in unison, and on the circumference of which at least one locking area is formed, and a housing 3, which is connected to the second shaft 2, rotating with it in unison. At least one locking means 10, which is complementary to the locking area and engages the locking area in the coupled state of the coupling, is mounted movably on the housing 3. Furthermore, a spring 11, by which the locking means 10 is pretensioned in the direction of the locking disk, is connected to the housing 3 and to the locking means 10.
    Type: Application
    Filed: January 16, 2003
    Publication date: May 6, 2004
    Inventors: Jens Vortmeyer, Metin Ersoy
  • Patent number: 6390506
    Abstract: A fastening system for fixing a first assembly unit to a second component for use especially in the motor vehicle industry is presented, which has at least one fastening screw, a corresponding first preassembly thread on the first assembly unit, in which the fastening screw is fixed after the preassembly, and a fastening thread on the first assembly unit or on the second component for fixing the first assembly unit to the second component by means of the fastening screw. The fastening screw has at least two threaded areas for preassembly and for fastening with different thread pitches, wherein the preassembly thread and the fastening thread as well as the threaded areas are provided with different pitches and the second threaded area, which is used for fastening and is facing away from the screw head, has a smaller diameter than the threaded area that is used for the preassembly and is adjacent to the screw head.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: May 21, 2002
    Assignee: NACAM Deutschland GmbH
    Inventors: Herniu Michalski, Fabian Metzger, Jens Vortmeyer, Andreas Rumpke
  • Patent number: 5664806
    Abstract: A crash system for the steering column in a motor vehicle, in which two tube ends are connected to one another by an insert which clamps the two tube ends to one another up to a predetermined axial load. This insert is a tolerance ring, whose cross-sectional profile is compressible. An adjustable clamping device surrounds the outer tube end and acts radially.
    Type: Grant
    Filed: May 16, 1996
    Date of Patent: September 9, 1997
    Assignee: Lemforder Metallwaren AG
    Inventors: Jens Vortmeyer, Kay Uwe Grams, Burkhard Schafer
  • Patent number: 5419581
    Abstract: An adjustable steering column for motor vehicles, in which a steering axle (2), which is composed of parts that are telescopingly displaceable in relation to one another and is connected at its top end (3) to the steering wheel, is rotatably mounted in a housing (1), and this housing is supported in a holder (4) that is a rigid part of the body both pivotably around a transverse axis (7) and displaceably in the longitudinal direction of the steering column in relation to the body. The actually supported position is continuously lockable by two hydraulically acting piston-and-cylinder units (13, 14), which are rigidly articulated to the body, on the one hand, and are connected to the housing (1) in an articulated manner, on the other hand.
    Type: Grant
    Filed: November 3, 1993
    Date of Patent: May 30, 1995
    Assignee: Lemforder Metallwaren AG
    Inventors: Burkhard Schafer, Kai-Uwe Grams, Jens Vortmeyer, Georg Hagemann, Eduard Jaegermeyr, Franz Promberger, Walter Egartner
  • Patent number: 5351572
    Abstract: The adjusting drive for axially adjustable steering columns in motor vehicles has a transmission between a drive unit mounted to rotate in a housing (2) secured to the body and a steering column tube (1) mounted to move axially in the housing. Gearing (5) is provided on the steering column tube extending in the axial direction. Gearing (8.1, 9.1) of the transmission engages with the steering column tube gearing. The gearing is provided as cycloidal gearing on two toothed racks (8, 9) whose gearing engages in the gearing on the steering column tube (1) out of phase with one another by half a tooth spacing, and which are movable eccentrically by the drive unit by a cam bearing (16, 17) out of phase by 180.degree..
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: October 4, 1994
    Assignee: Lemforder Metallwaren AG
    Inventor: Jens Vortmeyer
  • Patent number: 5214978
    Abstract: The present invention pertains to a steering column for motor vehicles with an angle-adjustable steering wheel, in which a steering shaft has a lower shaft 1 and an upper shaft 2. These shafts are connected to one another by a universal joint 5 rotatably mounted in a housing. The housing has a lower housing 3, which is attached to the vehicle body, and an upper housing 4, which, in contrast, is movable about an axis transverse to the longitudinal axis 11 of the steering column. Both housings form adjustable connection links for the angle adjustment of the steering wheel by connection links which can be motor-driven. The connection link has a worm segment 10 attached to the upper housing 4 and a worm 12 motor-rotatably mounted on the lower housing 3.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: June 1, 1993
    Assignee: Lemforder Metallwaren AG
    Inventors: Metin Ersoy, Jens Vortmeyer