Patents by Inventor Martin Hähnlen

Martin Hähnlen 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 monitoring a fuel supply system of an internal combustion engine and internal combustion engine for carrying out such a method
    Patent number: 11661900
    Abstract: A method for monitoring a fuel supply system in an internal combustion engine includes the steps of: recording a first pressure value in the fuel supply system in a region of the fuel supply system associated with a pre-filter and upstream of a low pressure pump; recording a second pressure value in the fuel supply system downstream of the low pressure pump in a region of the fuel supply system associated with a primary filter; monitoring the first pressure value and the second pressure value for an error state of the fuel supply system; and recognizing the error state only if the error state is plausible on a basis of both the first pressure value and the second pressure value.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: May 30, 2023
    Assignee: Rolls-Royce Solutions GmbH
    Inventors: Thomas Kottke, Robby Auer, Thilo Kreeb, Martin Hähnlen
  • METHOD FOR MONITORING A FUEL SUPPLY SYSTEM OF AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE FOR CARRYING OUT SUCH A METHOD
    Publication number: 20220145821
    Abstract: A method for monitoring a fuel supply system in an internal combustion engine includes the steps of: recording a first pressure value in the fuel supply system in a region of the fuel supply system associated with a pre-filter and upstream of a low pressure pump; recording a second pressure value in the fuel supply system downstream of the low pressure pump in a region of the fuel supply system associated with a primary filter; monitoring the first pressure value and the second pressure value for an error state of the fuel supply system; and recognizing the error state only if the error state is plausible on a basis of both the first pressure value and the second pressure value.
    Type: Application
    Filed: January 28, 2022
    Publication date: May 12, 2022
    Applicant: MTU Friedrichshafen GmbH
    Inventors: Thomas Kottke, Robby Gerbeth, Thilo Kreeb, Martin Hähnlen