Patents by Inventor Marcel Matischok

Marcel Matischok 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).

  • Procedure to operate a fuel system of an internal combustion engine
    Patent number: 7481202
    Abstract: In the operation of a fuel system of an internal combustion engine, the fuel is compressed by a fuel pump and travels by way of at least one fuel injection device into at least one combustion chamber of the internal combustion engine. It is proposed that at least periodically during a phase immediately when starting or just after starting the internal combustion engine, the fuel pump is actuated corresponding to an increased set point pressure. An increase in the set point pressure, however, is blocked if at least one blocking condition is met.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: January 27, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Posselt, Marko Lorenz, Marcel Matischok
  • Procedure to recognize a depressurized fuel system
    Patent number: 7383804
    Abstract: A procedure to recognize a depressurized fuel system of a motor vehicle with an internal combustion engine that includes a parameter characterizing the fuel system temperature is acquired when turning off the internal combustion engine; a parameter characterizing the fuel system temperature is acquired in the immediately subsequent driving cycle when starting the internal combustion engine; and from the difference between the shut-down temperature and the starting temperature, the pressure in the fuel system is inferred.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: June 10, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Jens Wolber, Karsten Hinn, Timm Hollmann, Matthias Walz, Marcel Matischok
  • Procedure to operate a fuel system of an internal combustion engine
    Publication number: 20080004786
    Abstract: In the operation of a fuel system (10) of an internal combustion engine (12), the fuel is compressed by a fuel pump (20) and travels by way of at least one fuel injection device (24) into at least one combustion chamber (36) of the internal combustion engine (12). It is proposed that at least periodically during a phase immediately when starting or just after starting the internal combustion engine (12), the fuel pump (20) is actuated corresponding to an increased set point pressure. An increase in the set point pressure, however, is blocked if at least one blocking condition is met.
    Type: Application
    Filed: June 28, 2007
    Publication date: January 3, 2008
    Applicant: Robert Bosch GmbH
    Inventors: Andreas Posselt, Marko Lorenz, Marcel Matischok
  • Procedure to recognize a depressurized fuel system
    Publication number: 20070101973
    Abstract: A procedure to recognize a depressurized fuel system of a motor vehicle with an internal combustion engine that includes a parameter characterizing the fuel system temperature is acquired when turning off the internal combustion engine; a parameter characterizing the fuel system temperature is acquired in the immediately subsequent driving cycle when starting the internal combustion engine; and from the difference between the shut-down temperature and the starting temperature, the pressure in the fuel system is inferred.
    Type: Application
    Filed: November 9, 2006
    Publication date: May 10, 2007
    Applicant: Robert Bosch GMBH
    Inventors: Jens Wolber, Karsten Hinn, Timm Hollmann, Matthias Walz, Marcel Matischok