Patents by Inventor Frederic DUMSER

Frederic DUMSER 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).

  • Publication number: 20250289485
    Abstract: A control device includes: a first control module, which is configured for being operatively connected with a controlled device, the first control module being configured for: checking, in response to a safety signal, whether the controlled device is in a predetermined safety state; and taking at least one safety measure so as to bring the controlled device into the predetermined safety state if the checking shows that the controlled device is not in the predetermined safety state.
    Type: Application
    Filed: May 29, 2025
    Publication date: September 18, 2025
    Applicant: Rolls-Royce Solutions GmbH
    Inventors: Ingo Lehmann, Frederic Dumser
  • Patent number: 10563568
    Abstract: A prechamber for an internal combustion engine, including a surface that is situated in the interior of the prechamber and that is impinged by a flow during the operation of the prechamber. The surface has at least one first surface region and at least one second surface region, wherein the first surface region has a defined texture, whereas the second surface region is untextured.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: February 18, 2020
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventor: Frederic Dumser
  • Publication number: 20180313256
    Abstract: A prechamber for an internal combustion engine, including a surface that is situated in the interior of the prechamber and that is impinged by a flow during the operation of the prechamber. The surface has at least one first surface region and at least one second surface region, wherein the first surface region has a defined texture, whereas the second surface region is untextured.
    Type: Application
    Filed: October 6, 2016
    Publication date: November 1, 2018
    Inventor: Frederic DUMSER
  • Patent number: 9151212
    Abstract: A pre-chamber system for an internal combustion engine has a pre-chamber having a wall, a spark plug having at least one electrode, and a gas introduction device, particularly a gas valve. A gas channel connects the gas introduction device to the pre-chamber via an inlet opening. A riser channel connects the pre-chamber (2) to a combustion chamber of the internal combustion engine. A guiding device influences the flow of the gas in the pre-chamber, the guiding device being arranged adjacent to the inlet opening in such a manner that in operation, the volume flow of hot gas flowing into the pre-chamber via the channel (8) and reaching the electrode (13) of the spark plug (4) is reduced by the guiding device (9).
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: October 6, 2015
    Assignee: GE Jenbacher GMBH & Co OG
    Inventors: Frederic Dumser, Florian Becker
  • Publication number: 20140251259
    Abstract: Pre-chamber system for an internal combustion engine with: -a pre-chamber having a wall, -a spark plug having at least one electrode, -a gas introduction device, particularly a gas valve, -a gas channel connecting the gas introduction device to the pre-chamber via an inlet opening, -a rise channel for connecting the pre-chamber to a combustion chamber of the internal combustion engine, -a guiding device for influencing the flow of the gas in the pre-chamber, said guiding device being arranged adjacent to the inlet opening in such a manner that in operation, a volume flow of hot gas flowing into the pre-chamber via the rise channel and reaching the electrode of the spark plug is reduced by the guiding device.
    Type: Application
    Filed: May 22, 2014
    Publication date: September 11, 2014
    Applicant: GE Jenbacher GmbH & Co OG
    Inventors: Frederic DUMSER, Florian BECKER