Patents by Inventor Jochen Lüdemann

Jochen Lüdemann 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: 20240332872
    Abstract: A plug holding device for holding a connection plug of an electrical plug connection on a housing section of a housing of an axle device includes a holder configured to hold the plug holding device on the housing section of the housing of the axle device and to hold the connection plug of the electrical plug connection. The plug holding device further includes a positioner configured to position the connection plug of the electrical plug connection relative to the plug holding device. The holder includes a feed-through configured to receive a male section of the connection plug of the electrical plug connection.
    Type: Application
    Filed: March 14, 2024
    Publication date: October 3, 2024
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Robert Schieck, Christoph Protze, Jochen Lüdemann
  • Patent number: 8960141
    Abstract: An adjusting shaft actuating device of a valve train for internal combustion engines includes a cam unit with first and second cams rigidly connected thereto. The second cam is spaced apart from the first cam in axial and peripheral directions. The device also includes a lever unit non-rotatably arranged on an adjusting shaft with first and second lever arms rigidly connected thereto. The second lever arm is spaced apart from the first lever arm in axial and peripheral directions. The first and second cams are configured to be brought into respective operative connections with the first and second lever arms by an axial alignment between the cam unit and lever unit. The first and second cams and the first and second lever arms are arranged such that the first operative connection and the second operative connection are produced during a rotation of the adjusting shaft in a temporally consecutive manner.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: February 24, 2015
    Assignee: IAV GmbH Ingenieurgesellschaft Auto und Verkehr
    Inventors: Jochen Luedemann, Uwe Parsche
  • Publication number: 20150013629
    Abstract: An adjusting shaft actuating device of a valve train for internal combustion engines includes a cam unit with first and second cams rigidly connected thereto. The second cam is spaced apart from the first cam in axial and peripheral directions. The device also includes a lever unit non-rotatably arranged on an adjusting shaft with first and second lever arms rigidly connected thereto. The second lever arm is spaced apart from the first lever arm in axial and peripheral directions. The first and second cams are configured to be brought into respective operative connections with the first and second lever arms by an axial alignment between the cam unit and lever unit. The first and second cams and the first and second lever arms are arranged such that the first operative connection and the second operative connection are produced during a rotation of the adjusting shaft in a temporally consecutive manner.
    Type: Application
    Filed: July 15, 2013
    Publication date: January 15, 2015
    Inventors: Jochen Luedemann, Uwe Parsche
  • Patent number: 8904977
    Abstract: A valve drive device for switching the stroke of gas exchange valves of an internal combustion engine includes a camshaft configured, at least in part, as a hollow shaft. A cam unit includes at least two different cams disposed on the camshaft so as to be rotationally engaged and axially displaceable with respect thereto. An adjustment sleeve is disposed so as to be rotationally engaged on an adjustment shaft and rotatable and axially displaceable inside the camshaft. The adjustment sleeve includes thereon a closed adjustment contour extending about a circumference of the adjustment sleeve and is operatively connected to the cam unit through an adjustment clearance in the camshaft via a first coupling element configured to permanently engage in the adjustment contour. A further coupling element is configured to permanently engage in the adjustment contour and connect to the camshaft so as to be fixed in position.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: December 9, 2014
    Assignee: IAV GmbH Ingenieurgesellschaft Auto und Verkehr
    Inventors: Andreas Werler, Joerg Wutzler, Uwe Parsche, Thomas Arnold, Jochen Luedemann
  • Publication number: 20130025554
    Abstract: A valve drive device for switching the stroke of gas exchange valves of an internal combustion engine includes a camshaft configured, at least in part, as a hollow shaft. A cam unit includes at least two different cams disposed on the camshaft so as to be rotationally engaged and axially displaceable with respect thereto. An adjustment sleeve is disposed so as to be rotationally engaged on an adjustment shaft and rotatable and axially displaceable inside the camshaft. The adjustment sleeve includes thereon a closed adjustment contour extending about a circumference of the adjustment sleeve and is operatively connected to the cam unit through an adjustment clearance in the camshaft via a first coupling element configured to permanently engage in the adjustment contour. A further coupling element is configured to permanently engage in the adjustment contour and connect to the camshaft so as to be fixed in position.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 31, 2013
    Applicant: IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHR
    Inventors: Andreas Werler, Joerg Wutzler, Uwe Parsche, Thomas Arnold, Jochen Luedemann