Patents by Inventor Dirk Schoeneberg

Dirk Schoeneberg 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).

  • Valve drive for gas exchange valves of an internal combustion engine, comprising a movable cam support and twin worm gear
    Patent number: 8365692
    Abstract: A valve drive assembly cooperable with gas exchange valves of an internal combustion engine having a cam shaft and at least one came support rotatably fixed and axially displaceable on the cam shaft and having at least two cam profiles selectively engageable with a roller provided on a follower engageable with a valve comprising a cam support having a cylindrical surface disposed coaxially with a cam shaft, provided with a pair of oppositely inclined, spiral grooves; and means selectively insertable into the grooves, coacting with side walls of such grooves as the cam shaft rotates to effect axial displacement of the cam support.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: February 5, 2013
    Assignee: Audi AG
    Inventors: Dirk Schoeneberg, Joerg Wutzler, Holger Voges, Gero Bromme
  • Valve drive for gas exchange valves of an internal combustion engine, comprising an axially movable bearing
    Patent number: 8297247
    Abstract: A valve drive assembly for selectively actuating a pair of valves of an internal combustion engine generally consisting of a pairs of cam supports rotatably fixed an axially displaceable on a camshaft, each provided with at least two cam profiles; means rotatably fixed and axially displaceable relative to the cam shaft, interposed between the cam supports; and means for selectively axially displacing the cam supports and the interposed means as a unit.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: October 30, 2012
    Assignee: Audi AG
    Inventors: Dirk Schoeneberg, Holger Voges, Joerg Wutzler
  • Valve Drive for Gas Exchange Valves of an Internal Combustion Engine, Comprising a Movable Cam Support and Twin Worm Gear
    Publication number: 20100269769
    Abstract: A valve drive assembly cooperable with gas exchange valves of an internal combustion engine having a cam shaft and at least one came support rotatably fixed and axially displaceable on the cam shaft and having at least two cam profiles selectively engageable with a roller provided on a follower engageable with a valve comprising a cam support having a cylindrical surface disposed coaxially with a cam shaft, provided with a pair of oppositely inclined, spiral grooves; and means selectively insertable into the grooves, coacting with side walls of such grooves as the cam shaft rotates to effect axial displacement of the cam support.
    Type: Application
    Filed: February 28, 2008
    Publication date: October 28, 2010
    Inventors: Dirk Schoeneberg, Joerg Wutzler, Holger Voges, Gero Bromme
  • Valve Drive for Gas Exchange Valve of an Internal Combustion Engine, Comprising an Axially Movable Bearing
    Publication number: 20100175652
    Abstract: A valve drive assembly for selectively actuating a pair of valves of an internal combustion engine generally consisting of a pairs of cam supports rotatably fixed an axially displaceable on a camshaft, each provided with at least two cam profiles; means rotatably fixed and axially displaceable relative to the cam shaft, interposed between the cam supports; and means for selectively axially displacing the cam supports and the interposed means as a unit.
    Type: Application
    Filed: February 28, 2008
    Publication date: July 15, 2010
    Inventors: Dirk Schoeneberg, Holger Voges, Joerg Wutzler