Patents by Inventor Didier Boury

Didier Boury 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 of connecting a skirt to a thruster body casing
    Patent number: 10576671
    Abstract: The terminal portion of a prefabricated skirt is connected to a casing of a thruster body in the vicinity of an end wall thereof using a method including positioning the terminal portion of the skirt with circumferential clearance around the casing of the thruster body in the vicinity of the end wall; keeping the skirt in position relative to the casing of the thruster body; closing both ends of an annular space between the terminal portion of the skirt and the casing of the thruster body; injecting elastomer into the annular space; and curing the elastomer.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: March 3, 2020
    Assignee: ARIANEGROUP SAS
    Inventors: Didier Boury, Jacques Rey, Romain Bernard, Agnès Aymonier
  • METHOD OF CONNECTING A SKIRT TO A THRUSTER BODY CASING
    Publication number: 20160221236
    Abstract: The terminal portion of a prefabricated skirt is connected to a casing of a thruster body in the vicinity of an end wall thereof using a method including positioning the terminal portion of the skirt with circumferential clearance around the casing of the thruster body in the vicinity of the end wall; keeping the skirt in position relative to the casing of the thruster body; closing both ends of an annular space between the terminal portion of the skirt and the casing of the thruster body; injecting elastomer into the annular space; and curing the elastomer.
    Type: Application
    Filed: October 13, 2014
    Publication date: August 4, 2016
    Inventors: Didier BOURY, Jacques REY, Romain BERNARD, Agnès AYMONIER
  • System and method of controlling pressure oscillations of hydrodynamic origin for a solid propellant thruster
    Patent number: 7003942
    Abstract: The invention provides a system for passively controlling pressure oscillations of hydrodynamic origin in a solid propellant thruster comprising a body containing a charge of solid propellant, the system comprising at least one insert disposed in the thruster body transversely relative to the flow direction of the combustion gases of the solid propellant. The insert has an opening of non-axisymmetric shape so as to generate a three-dimensional effect on the flow and prevent axisymmetric turbulent modes from forming in the thruster. Thus, the control system of the invention serves to break the symmetry of the flow and thus prevents axisymmetric turbulence forming which is the source of instability that the present invention seeks to control. The present system is applicable to existing thrusters.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: February 28, 2006
    Assignees: Snecma Propulsion Solide, AVIO S.p.A.
    Inventors: Philippe Le Helley, Louis Jacques, Christophe Magniére, Gilles Uhrig, Bernard Bondon, Jean-Claude Tricot, Didier Boury, Marco Telara, Paolo Bellomi, Georgio Mastrangelo
  • System and method of controlling pressure oscillations of hydrodynamic origin for a solid propellant thruster
    Publication number: 20040144886
    Abstract: The invention provides a system for passively controlling pressure oscillations of hydrodynamic origin in a solid propellant thruster comprising a body containing a charge of solid propellant, the system comprising at least one insert disposed in the thruster body transversely relative to the flow direction of the combustion gases of the solid propellant. The insert has an opening of non-axisymmetric shape so as to generate a three-dimensional effect on the flow and prevent axisymmetric turbulent modes from forming in the thruster. Thus, the control system of the invention serves to break the symmetry of the flow and thus prevents axisymmetric turbulence forming which is the source of instability that the present invention seeks to control. The present system is applicable to existing thrusters.
    Type: Application
    Filed: August 27, 2003
    Publication date: July 29, 2004
    Applicant: Snecma Propulsion Solide
    Inventors: Philippe Le Helley, Louis Jacques, Christophe Magniere, Gilles Uhrig, Bernard Bondon, Jean-Claude Tricot, Didier Boury