Patents by Inventor James Neimeier

James Neimeier 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).

  • Variable valve actuation assembly for an internal combustion engine
    Patent number: 6591798
    Abstract: A variable valve actuation assembly for actuation of an engine intake valve between low-lift and high-lift modes. The VVA assembly includes a special rocker assembly having a pivotable central high-lift cam follower and two peripheral low-lift cam followers; a camshaft having low-lift and high-lift lobes engageable with the respective cam followers; a primary latching assembly including a slidable primary latching pin in the rocker assembly for engaging and disengaging the high-lift follower; a solenoid for causing the primary latching pin to be engaged and disengaged; and a secondary latching mechanism between the solenoid and the primary latching pin to automatically limit engagement and disengagement of the primary latching pin to times in the duty cycle of the camshaft (during lift events) when ejections of the primary latching pin are not possible.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: July 15, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Nick J. Hendriksma, James Neimeier, Timothy Wilton Kunz
  • VARIABLE VALVE ACTUATION ASSEMBLY FOR AN INTERNAL COMBUSTION ENGINE
    Publication number: 20030111031
    Abstract: A variable valve actuation assembly for actuation of an engine intake valve between low-lift and high-lift modes. The VVA assembly includes a special rocker assembly having a pivotable central high-lift cam follower and two peripheral low-lift cam followers; a camshaft having low-lift and high-lift lobes engageable with the respective cam followers; a primary latching assembly including a slidable primary latching pin in the rocker assembly for engaging and disengaging the high-lift follower; a solenoid for causing the primary latching pin to be engaged and disengaged; and a secondary latching mechanism between the solenoid and the primary latching pin to automatically limit engagement and disengagement of the primary latching pin to times in the duty cycle of the camshaft (during lift events) when ejections of the primary latching pin are not possible.
    Type: Application
    Filed: December 17, 2001
    Publication date: June 19, 2003
    Inventors: Nick J. Hendricksma, James Neimeier, Timothy Wilton Kunz