Patents by Inventor Dirk Hoeffken

Dirk Hoeffken 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).

  • Pneumatic actuating drive having integrated electropneumatic position control
    Patent number: 8191455
    Abstract: An electropneumatic actuator system for operating assemblies of an internal combustion engine includes a housing, in which an actuator is movably accommodated, which in turn is configured to be hollow and includes an aeration channel and a deaeration channel. A control slide valve is assigned to the actuator which is operated by a magnetic coil and which aerates, deaerates or closes a pressure chamber of the housing as a function of the relative position of the actuator.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: June 5, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Michael Baeuerle, Helmut Schneider, Dirk Hoeffken
  • Pneumatic Actuating Drive Having Integrated Electropneumatic Position Control
    Publication number: 20090205332
    Abstract: An electropneumatic actuator system for operating assemblies of an internal combustion engine includes a housing, in which an actuator is movably accommodated, which in turn is configured to be hollow and includes an aeration channel and a deaeration channel. A control slide valve is assigned to the actuator which is operated by a magnetic coil and which aerates, deaerates or closes a pressure chamber of the housing as a function of the relative position of the actuator.
    Type: Application
    Filed: April 23, 2007
    Publication date: August 20, 2009
    Inventors: Michael Baeuerle, Helmut Schneider, Dirk Hoeffken