Patents by Inventor Udo Ingelfinger

Udo Ingelfinger 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 for operating an internal combustion engine
    Patent number: 8726855
    Abstract: The invention relates to a method for operating an internal combustion engine with a crankcase, a crankcase vent and an intake system. According to the invention, the pressure in the crankcase can be reduced, depending on a differential pressure between the intake system and the crankcase, to maximally ?500 mbar, in particular maximally ?300 mbar, with respect to ambient pressure for reducing lubricant consumption of the internal combustion engine.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: May 20, 2014
    Assignee: Audi AG
    Inventors: Udo Ingelfinger, Matthias Rosenbäck
  • METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE
    Publication number: 20110239965
    Abstract: The invention relates to a method for operating an internal combustion engine with a crankcase, a crankcase vent and an intake system. According to the invention, the pressure in the crankcase can be reduced, depending on a differential pressure between the intake system and the crankcase, to maximally ?500 mbar, in particular maximally ?300 mbar, with respect to ambient pressure for reducing lubricant consumption of the internal combustion engine.
    Type: Application
    Filed: December 8, 2009
    Publication date: October 6, 2011
    Applicant: Audi AG
    Inventors: Udo Ingelfinger, Matthias Rosenbäck