Patents by Inventor Ralf Stark

Ralf Stark 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).

  • Patent number: 8938972
    Abstract: An engine apparatus is provided for a flying object, the engine apparatus including a combustion chamber having a throat region and a nozzle region, the nozzle region having a nozzle wall, wherein the nozzle region expands from the throat region towards an exit end relative to a combustion chamber axis, wherein the nozzle region has associated therewith a skirt having a skirt wall, the skirt being positioned downstream relative to the exit end and surrounding the exit end of the nozzle region, and wherein the skirt wall is at an acute angle away from the combustion chamber axis with respect to the nozzle wall, at least at the exit end of the nozzle region.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: January 27, 2015
    Assignee: Deutsches Zentrum fuer Luft-und Raumfahrt e.V.
    Inventors: Ralf Stark, Chloé Génin
  • Patent number: 8561385
    Abstract: A flying object is provided with an engine comprising a combustion chamber with a combustion space and a nozzle with a nozzle space following the combustion chamber, the transition between combustion chamber and nozzle lying in a plane in which a cross-section of the combustion space converges, in which thrust control in terms of magnitude and/or thrust vector can be carried out in a simple manner, it is provided that a centre body adapted to have combustion products flowing around it is at least partially arranged in the nozzle space, outside of the combustion space, and at least three jet vanes are arranged at the centre body.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: October 22, 2013
    Assignee: Deutsches Zentrum fuer Luft- und Raumfahrt e.V.
    Inventors: Helmut Ciezki, Ralf Stark
  • Publication number: 20130233942
    Abstract: An engine apparatus is provided for a flying object, the engine apparatus including a combustion chamber having a throat region and a nozzle region, the nozzle region having a nozzle wall, wherein the nozzle region expands from the throat region towards an exit end relative to a combustion chamber axis, wherein the nozzle region has associated therewith a skirt having a skirt wall, the skirt being positioned downstream relative to the exit end and surrounding the exit end of the nozzle region, and wherein the skirt wall is at an acute angle away from the combustion chamber axis with respect to the nozzle wall, at least at the exit end of the nozzle region.
    Type: Application
    Filed: April 24, 2013
    Publication date: September 12, 2013
    Applicant: Deutsches Zentrum fuer Luft-und Raumfahrt e.V.
    Inventors: Ralf Stark, Cloé Génin
  • Publication number: 20110083418
    Abstract: In order to provide a flying object with an engine comprising a combustion chamber with a combustion space and a nozzle with a nozzle space following the combustion chamber, the transition between combustion chamber and nozzle lying in a plane in which a cross-section of the combustion space converges, in which thrust control in terms of magnitude and/or thrust vector can be carried out in a simple manner, it is provided that a centre body adapted to have combustion products flowing around it is at least partially arranged in the nozzle space, outside of the combustion space, and at least three jet vanes are arranged at the centre body.
    Type: Application
    Filed: October 13, 2010
    Publication date: April 14, 2011
    Inventors: Helmut Ciezki, Ralf Stark