Patents by Inventor Michael Rampfl

Michael Rampfl 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 system for checking an oil for an internal combustion engine, in particular of a motor vehicle
    Patent number: 11346834
    Abstract: A method for checking an oil as a lubricant for an internal combustion engine includes: performing a laboratory test in which, independently of the internal combustion engine, a three-dimensional temperature-viscosity-shear rate characteristic field which characterizes the oil is determined, which includes a plurality of viscosities, shear rates and temperatures of the oil determined experimentally by the laboratory test and in each case associates shear rates and viscosities with the temperatures; checking whether the temperature-viscosity-shear rate characteristic field meets at least one predeterminable first criterion; and if the temperature-viscosity-shear rate characteristic field meets the first criterion: performing at least one test bench trial in which, via the internal combustion engine, it is checked whether the oil meets at least one predeterminable second criterion.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: May 31, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Michael Rampfl
  • Method and System for Checking an Oil for an Internal Combustion Engine, in Particular of a Motor Vehicle
    Publication number: 20200217832
    Abstract: A method for checking an oil as a lubricant for an internal combustion engine includes: performing a laboratory test in which, independently of the internal combustion engine, a three-dimensional temperature-viscosity-shear rate characteristic field which characterizes the oil is determined, which includes a plurality of viscosities, shear rates and temperatures of the oil determined experimentally by the laboratory test and in each case associates shear rates and viscosities with the temperatures; checking whether the temperature-viscosity-shear rate characteristic field meets at least one predeterminable first criterion; and if the temperature-viscosity-shear rate characteristic field meets the first criterion: performing at least one test bench trial in which, via the internal combustion engine, it is checked whether the oil meets at least one predeterminable second criterion.
    Type: Application
    Filed: March 17, 2020
    Publication date: July 9, 2020
    Inventor: Michael RAMPFL
  • Emissions cleaning system and method for reducing emissions of internal combustion engines when the engine is switched off
    Patent number: 8413640
    Abstract: The invention relates to an emission cleaning system which is disposed on the intake tract of an internal combustion engine and has at least one device for taking in air and also at least one filter unit and a control/regulating device.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: April 9, 2013
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Stefan Mair, Michael Rampfl, Klaus Breuer
  • POLYMER MATERIAL, METHOD FOR IN SITU FUNCTIONALISATION OF POLYMER MATERIALS AND ALSO USE THEREOF
    Publication number: 20120121898
    Abstract: The present invention relates to a polymer material with a functionalised surface and also to a method for in situ functionalisation of polymer materials. Furthermore, the invention comprises the use of the polymer materials.
    Type: Application
    Filed: November 15, 2011
    Publication date: May 17, 2012
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Andrea Burdack-Freitag, Andreas Schmohl, Michael Rampfl, Klaus Breuer