Patents by Inventor Christian Sobottka

Christian Sobottka 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).

  • Apparatus for pumping fuel from a tank to an internal combustion engine, and method for pressure detection
    Patent number: 7383821
    Abstract: An apparatuses for pumping fuel to an internal combustion engine has a feed pump, a pressure line leading from the feed pump to the internal combustion engine, a check valve, and a pressure sensor connected to the pressure line is operatively connected to the pressure line downstream of the feed pump and upstream of the check valve. The measurement signal of the pressure sensor is used as a controlled variable for regulating the feed pump and/or for a leak diagnosis in the pressure line and/or for a tank leak diagnosis. The apparatus according to the invention is simplified because only a single pressure sensor is provided for the pressure change in the pressure line and in the tank.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: June 10, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Juergen Gras, Christian Sobottka, Karl-Bernhard Lederle
  • Apparatus for pumping fuel from a tank to an internal combustion engine, and method for pressure detection
    Publication number: 20070108856
    Abstract: An apparatuses for pumping fuel to an internal combustion engine has a feed pump, a pressure line leading from the feed pump to the internal combustion engine, a check valve, and a pressure sensor connected to the pressure line is operatively connected to the pressure line downstream of the feed pump and upstream of the check valve. The measurement signal of the pressure sensor is used as a controlled variable for regulating the feed pump and/or for a leak diagnosis in the pressure line and/or for a tank leak diagnosis. The apparatus according to the invention is simplified because only a single pressure sensor is provided for the pressure change in the pressure line and in the tank.
    Type: Application
    Filed: October 29, 2004
    Publication date: May 17, 2007
    Inventors: Juergen Gras, Christian Sobottka, Karl-Bernhard Lederle
  • Method of and device for determination of characteristic values of an internal combustion engine
    Patent number: 6327531
    Abstract: In a method of and device for providing data of a model for determination of characteristic variables for controlling an internal combustion engine, in particular an internal combustion engine with direct injection or suction pipe injection, for each predetermined operation point of the internal combustion engine at least one local model in particular of low order is provided with data.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: December 4, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Matthias Philipp, Christian Sobottka, Henri Huynh