Patents by Inventor Delphine Roussin-Leroux

Delphine Roussin-Leroux 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: 9004852
    Abstract: A turbomachine high-pressure turbine including a rotor disc with upstream and downstream annular flanges separating a radially internal annular cavity in which the hub of the disc extends from two radially external annular cavities, of which one is upstream of the disc and receives a ventilation air flow and of which the other is downstream of the disc, the upstream flange of the disc including a mechanism connecting to the upstream eternal cavity and the internal cavity for ventilating the hub of the disc.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: April 14, 2015
    Assignee: SNECMA
    Inventors: Mathieu Dakowski, Fabrice Garin, Delphine Roussin-Leroux, Wilfried Schweblen
  • Patent number: 8800291
    Abstract: A diffuser which straightens the flow of air issuing from a centrifugal compressor in a turbine engine is provided. The diffuser having a cylindrical shape and including a first part having the form of two substantially parallel discs extending substantially radially relative to the axis of symmetry of the diffuser, a second bent part, and a third part intended to open out into a downstream cavity, positioned downstream of the diffuser and fed with air issuing from the compressor. The first part is traversed by a plurality of channels distributed evenly over its circumference and opening out on its downstream face so as to bring the air contained in the downstream cavity into communication with a bleed cavity situated upstream of the diffuser.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: August 12, 2014
    Assignee: SNECMA
    Inventors: Eric Stephan Bil, Jean-Francois Rios, Delphine Roussin-Leroux
  • Patent number: 8662828
    Abstract: A high pressure turbine of a turbomachine such as a turbojet, in which a control box of radial clearances of rotating blades are provided. An annular element including a determined flexibility has one end fixed to an annular support and the other end supported by a simple axial bearing with a given pressure on the upstream side of the control box. Thus, disturbing vibration loads are prevented at the attachment points of the control box with the external casing of turbines, thereby also eliminating the risk of cracks occurring.
    Type: Grant
    Filed: May 25, 2009
    Date of Patent: March 4, 2014
    Assignee: SNECMA
    Inventors: Alain Dominique Gendraud, Delphine Roussin-Leroux, Jean-Luc Le Strat, Pascal Tatiossian
  • Publication number: 20110314828
    Abstract: Diffuser intended to straighten the flow of air issuing from a centrifugal compressor in a turbine engine, the said diffuser having a cylindrical shape and comprising a first part having the form of two substantially parallel discs extending substantially radially relative to the axis of symmetry of the diffuser, a second bent part and a third part intended to open out into a downstream cavity, positioned downstream of the said diffuser and fed with air issuing from the said compressor, characterized in that the first part is traversed by a plurality of channels distributed evenly over its circumference and opening out on its downstream face so as to bring the air contained in the said downstream cavity into communication with a bleed cavity situated upstream of the said diffuser.
    Type: Application
    Filed: June 21, 2011
    Publication date: December 29, 2011
    Applicant: SNECMA
    Inventors: Eric Stéphan BIL, Jean-Francois Rios, Delphine Roussin-Leroux
  • Publication number: 20110280735
    Abstract: A turbomachine high-pressure turbine including a rotor disc with upstream and downstream annular flanges separating a radially internal annular cavity in which the hub of the disc extends from two radially external annular cavities, of which one is upstream of the disc and receives a ventilation air flow and of which the other is downstream of the disc, the upstream flange of the disc including a mechanism connecting to the upstream eternal cavity and the internal cavity for ventilating the hub of the disc.
    Type: Application
    Filed: October 16, 2009
    Publication date: November 17, 2011
    Applicant: SNECMA
    Inventors: Mathieu Dakowski, Fabrice Garin, Delphine Roussin-Leroux, Wilfried Schweblen