Patents by Inventor Roman Grzeszik

Roman Grzeszik 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).

  • Fuel System
    Publication number: 20140305409
    Abstract: A fuel system comprises a first reservoir for a first fuel in liquid phase that has a first vapor pressure, and a second reservoir for a second fuel in liquid phase that has a second vapor pressure. The second vapor pressure is higher than the first vapor pressure. The fuel system further includes a mixing device for mixing the first fuel in liquid phase with the second fuel in liquid phase, and an injector which is hydraulically connected to the mixing device and is configured so that as, or immediately after, the mixture passes through an outlet opening of the injector, the second fuel changes from the liquid phase to a gaseous phase.
    Type: Application
    Filed: October 18, 2012
    Publication date: October 16, 2014
    Inventors: Stefan Arndt, Siamend Flo, Alexander Gluschke, Frank Nitsche, Thorsten Allgeier, Martin Maier, Roman Grzeszik, Henri Barbier, Andreas Herzig, Winfried Langer, Guenther Hohl, Juergen Arnold
  • Ignition system for an internal combustion engine
    Patent number: 7395793
    Abstract: An ignition system for an internal combustion engine, having a combustion chamber and a fuel injection device which injects a fuel directly into the combustion chamber in stream-guided fashion, is configured so that the ignition system has a positive polarity.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: July 8, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Manfred Vogel, Gernot Wuerfel, Axel Heinstein, Klaus-Peter Gansert, Axel Storch, Roman Grzeszik, Klaus Ries-Mueller, Detlev Nowak, Stefan Lauter, Robert Koehler, Paulo Ricardo
  • Ignition system for an internal combustion engine
    Publication number: 20060180120
    Abstract: An ignition system for an internal combustion engine, having a combustion chamber and a fuel injection device which injects a fuel directly into the combustion chamber in stream-guided fashion, is configured so that the ignition system has a positive polarity.
    Type: Application
    Filed: February 9, 2006
    Publication date: August 17, 2006
    Inventors: Manfred Vogel, Gernot Wuerfel, Axel Heinstein, Klaus-Peter Gansert, Axel Storch, Roman Grzeszik, Klaus Ries-Mueller, Detlev Nowak, Stefan Lauter, Robert Koehler, Paulo Ricardo
  • Fuel injection system
    Patent number: 6883491
    Abstract: A fuel-injection system for internal combustion engines has at least one fuel injector injecting fuel into a combustion chamber, which is delimited by a cylinder wall in which a piston is guided. A spark plug projects into the combustion chamber, and the fuel injector is located in the combustion chamber in the region of a gas-intake valve toward the cylinder wall. The fuel injector produces a plurality of fuel jets at least one of these fuel jets being tangentially oriented to the region of the spark plug.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: April 26, 2005
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Arndt, Gernot Würfel, Jürgen Raimann, Roman Grzeszik
  • Fuel injection system
    Publication number: 20040020459
    Abstract: A fuel-injection system for internal combustion engines has at least one fuel injector injecting fuel into a combustion chamber, which is delimited by a cylinder wall in which a piston is guided. A spark plug projects into the combustion chamber, and the fuel injector is located in the combustion chamber in the region of a gas-intake valve toward the cylinder wall. The fuel injector produces a plurality of fuel jets at least one of these fuel jets being tangentially oriented to the region of the spark plug.
    Type: Application
    Filed: July 24, 2003
    Publication date: February 5, 2004
    Inventors: Stefan Arndt, Gernot Wurfel, Jurgen Raimann, Roman Grzeszik