Patents by Inventor Jurgen Kroll

Jurgen Kroll 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: 20170089415
    Abstract: The invention relates to a method for producing a wet friction lining wherein an oil is delivered through pores to a device operated using oil. In a method in which oil delivery from the wet lining is adjustable regardless of the production process for the wet friction lining, the pores are formed using a perforation process.
    Type: Application
    Filed: May 6, 2015
    Publication date: March 30, 2017
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Jurgen Kroll, Stefan Steinmetz
  • Patent number: 9528590
    Abstract: A decoupler for damping torque transmission irregularities between a vehicle drive shaft and a belt pulley for driving vehicle auxiliary components. The decoupler includes first and second ramp rings for transmitting torque delivered by the drive shaft to the belt pulley. A spring arrangement provides for axial engagement of the ramp rings. The ramp rings have respective sloped push and pull ramps directed toward the adjacent ramp ring so that in a coasting mode of the vehicle the ramp rings rotate relative to each other and in a vehicle drive mode the ramp rings are drawn toward one another. The decoupler includes a pulley damper for damping torque transmission irregularities to reduce noise emission.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: December 27, 2016
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Hartmut Mende, Jürgen Kroll
  • Publication number: 20150345610
    Abstract: A decoupler for damping torque transmission irregularities between a vehicle drive shaft and a belt pulley for driving vehicle auxiliary components. The decoupler includes first and second ramp rings for transmitting torque delivered by the drive shaft to the belt pulley. A spring arrangement provides for axial engagement of the ramp rings. The ramp rings have respective sloped push and pull ramps directed toward the adjacent ramp ring so that in a coasting mode of the vehicle the ramp rings rotate relative to each other and in a vehicle drive mode the ramp rings are drawn toward one another. The decoupler includes a pulley damper for damping torque transmission irregularities to reduce noise emission.
    Type: Application
    Filed: November 28, 2013
    Publication date: December 3, 2015
    Applicant: SCHAEFFLER TECHNOLOGIES AG & Co. KG
    Inventors: Hartmut MENDE, Jürgen KROLL
  • Patent number: 8641563
    Abstract: A belt pulley damper for attenuating torsional vibrations of a drive shaft and includes a belt pulley for driving a pull mechanism, particularly a pulling belt. A torsional vibration damper, particularly a decoupler for torsional vibrations is connected with a drive flange and includes a driven disk movable circumferentially relative to the drive flange, and a driven disk is axially movable relative to a belt pulley. The belt pulley and the driven disk include axially-opposed teeth. The belt pulley teeth and the driven disk teeth can be engaged below a threshold pull force occurring during drive operation, and can be disengaged above the threshold pull force. In that manner, undesired torsional vibrations can be avoided by a free-wheel device without substantially increasing noise.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: February 4, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Hartmut Mende, Jürgen Kroll
  • Publication number: 20110263365
    Abstract: A belt pulley damper for attenuating torsional vibrations of a drive shaft and includes a belt pulley for driving a pull mechanism, particularly a pulling belt. A torsional vibration damper, particularly a decoupler for torsional vibrations is connected with a drive flange and includes a driven disk movable circumferentially relative to the drive flange, and a driven disk is axially movable relative to a belt pulley. The belt pulley and the driven disk include axially-opposed teeth. The belt pulley teeth and the driven disk teeth can be engaged below a threshold pull force occurring during drive operation, and can be disengaged above the threshold pull force. In that manner, undesired torsional vibrations can be avoided by a free-wheel device without substantially increasing noise.
    Type: Application
    Filed: April 14, 2011
    Publication date: October 27, 2011
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventors: Hartmut Mende, Jürgen Kroll
  • Patent number: 7665590
    Abstract: A coupling system including at least two sub-units, one of which is pre-assembled on the engine side of a motor vehicle drive train, namely on the output shaft of the engine, and the other sub-unit is pre-assembled on the transmission side of the drive train. The pre-assembled sub-units each include respective interengaging teeth to provide a positive drive connection, and the teeth are biased toward each other to reduce circumferential play and thereby reduce noise that would be generated during operation of the drive train.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: February 23, 2010
    Assignee: LuK Lamellen und Kupplungsbau Beteriligungs KG
    Inventors: Jürgen Kroll, Hartmut Mende, Bin Zhou
  • Publication number: 20080179163
    Abstract: A coupling system including at least two sub-units, one of which is pre-assembled on the engine side of a motor vehicle drive train, namely on the output shaft of the engine, and the other sub-unit is pre-assembled on the transmission side of the drive train. The pre-assembled sub-units each include respective interengaging teeth to provide a positive drive connection, and the teeth are biased toward each other to reduce circumferential play and thereby reduce noise that would be generated during operation of the drive train.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 31, 2008
    Applicant: Luk Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Jurgen Kroll, Hartmut Mende, Bin Zhou
  • Publication number: 20040200313
    Abstract: A torsion-vibration absorber for use with a motor vehicle includes a transmission element at a driving end and a transmission element at a driven end adapted to be rotary deflected around an axis to the transmission element at the driving end. At least one compression spring connects the transmission element at the driven end with the transmission element at the driving end. At least one reinforcing component is encompassed by at least a portion of the at least one compression spring and includes a securing device to substantially limit displacement of the at least one reinforcing component in relation to the at least one compression spring.
    Type: Application
    Filed: April 14, 2003
    Publication date: October 14, 2004
    Inventors: Jurgen Kroll, Norbert Bastel, Till Ebner
  • Patent number: 6481549
    Abstract: The invention concerns a sub-assembly of a hydrodynamic converter which is comprised of an overrunning clutch with bearing rings, a stator of with integrated overrunning clutch outer ring, as well as two thrust bearings. The invention is identified by the following characteristics: the overrunning clutch has one or two cages and two bearing rings; the overrunning clutch has an overrunning clutch inner ring; the overrunning clutch has an overrunning clutch outer ring; the stator consists of glass reinforced plastic and is manufactured in an injection process; the stator is injected around the overrunning clutch outer ring during the injection process, so that it encompasses this—seen in axial section—in a U shape; each of the thrust bearings are arranged on axially opposite surfaces of the material surrounding the overrunning clutch outer ring.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: November 19, 2002
    Assignee: BorgWarner, Inc.
    Inventors: Jürgen Kroll, Rolf Köstel
  • Publication number: 20010023805
    Abstract: The invention concerns a sub-assembly of a hydrodynamic converter which is comprised of an overrunning clutch with bearing rings, a stator of with integrated overrunning clutch outer ring, as well as two thrust bearings.
    Type: Application
    Filed: March 8, 2001
    Publication date: September 27, 2001
    Inventors: Jurgen Kroll, Rolf Kostel
  • Patent number: 6186300
    Abstract: A motor vehicle clutch assembly with an outer ring which is rotationally driven by the engine. An inner ring of the clutch assembly is seated, with a clutch element, on the transmission input shaft of a speed-change gear. The clutch element locks during engaged conditions of the engine and opens during overrun conditions of the engine.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: February 13, 2001
    Assignee: BorgWarner Inc.
    Inventors: Karl-Heinz Bauer, Jurgen Kroll
  • Patent number: 6145645
    Abstract: A disk assembly having a circular friction lining mounted on one or both sides of a support member. An oil channel extends from the outer edge of the friction lining to the inner edge. The oil channel includes an enlarged middle oil reservoir section extending completely through the friction lining. An inlet section and an outlet section of the oil channel are in communication with the reservoir section and are narrow grooves which are embossed in the friction lining during bonding of the friction lining.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: November 14, 2000
    Assignee: Borg-Warner Automotive, GmbH
    Inventors: Jurgen Kroll, Norbert Bastel