Patents by Inventor Frank Tettenborn

Frank Tettenborn 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).

  • Method and device for controlling an internal combustion engine
    Patent number: 7032557
    Abstract: An internal combustion engine has an intake device (1), the intake pipes (5 to 8) for the intakes of cylinders of the internal combustion engine and actuators for adjusting the effective pipe lengths of the intake pipes (5 to 8) by closing or opening at least one opening of the intake pipes (5 to 8) up to a hollow body and at least one actuator for controlling the actuators. Within a first speed range whose upper limit is a first threshold value (N1), the actuators are moved into a closed position. For a speed (N), exceeding a first threshold value (N1) and being less than a second threshold value (N2), the actuators are moved into a leakage position. For a speed exceeding the second threshold value (N2), the actuators are moved into an open position.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: April 25, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hubert Limbrunner, Frank Tettenborn, Berthold Wolfram
  • Method and device for controlling an internal combustion engine
    Publication number: 20040168667
    Abstract: An internal combustion engine has an intake device (1), the intake pipes (5 to 8) for the intakes of cylinders of the internal combustion engine and actuators for adjusting the effective pipe lengths of the intake pipes (5 to 8) by closing or opening at least one opening of the intake pipes (5 to 8) up to a hollow body and at least one actuator for controlling the actuators. Within a first speed range whose upper limit is a first threshold value (N1), the actuators are moved into a closed position. For a speed (N), exceeding a first threshold value (N1) and being less than a second threshold value (N2), the actuators are moved into a leakage position. For a speed exceeding the second threshold value (N2), the actuators are moved into an open position.
    Type: Application
    Filed: January 16, 2004
    Publication date: September 2, 2004
    Inventors: Hubert Limbrunner, Frank Tettenborn, Berthold Wolfram