Patents by Inventor Eric Jacques Lefebvre

Eric Jacques Lefebvre 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).

  • Turbine stator for aircraft turbine engine including a vibration damping device
    Patent number: 8133010
    Abstract: A turbine stator for an aircraft turbine engine is disclosed. The turbine stator includes a stator wall supporting a high pressure air injector fixed on the downstream side, and an annular abradable element support. The lower radial end of the element support is fixed to the high pressure air injector and the upper radial end of the element support is fixed to the stator wall, such that they jointly delimit a cavity under pressure. The turbine stator also includes at least one vibration damping device located in the cavity under pressure. The vibration damping device is in contact with each of the two elements taken among the stator wall and the annular support.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: March 13, 2012
    Assignee: SNECMA
    Inventors: Mathieu Dakowski, Sandrine Gandelot, Eric Jacques Lefebvre
  • System for retaining blades in a rotor
    Patent number: 7824157
    Abstract: The rotor disk carries an axial retention plate facing slots having blade roots received therein, the disk and the plate are shaped so as to define outer circumferential interlock and inner circumferential interlock.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: November 2, 2010
    Assignee: SNECMA
    Inventors: Herve Marc Philippe Buisson, Jean-Luc Christian Yvon Goga, Eric Jacques Lefebvre
  • Locking of the blades in a fan rotor
    Patent number: 7686585
    Abstract: A fan rotor is provided. Each blade of the fan rotor is held by a bolt. Each blade includes a blade root engaged in a groove of the rim and held by a bolt. The bolt includes a concave plate with its curve directed upstream.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: March 30, 2010
    Assignee: SNECMA
    Inventors: Herve Marc Philippe Buisson, Jean-Luc Christian Yvon Goga, Eric Jacques Lefebvre
  • LOCKING OF THE BLADES IN A FAN ROTOR
    Publication number: 20090226321
    Abstract: A fan rotor is provided. Each blade of the fan rotor is held by a bolt. Each blade includes a blade root engaged in a groove of the rim and held by a bolt. The bolt includes a concave plate with its curve directed upstream.
    Type: Application
    Filed: July 28, 2006
    Publication date: September 10, 2009
    Applicant: SNECMA
    Inventors: Herve Marc Buisson, Jean-Luc Christian Yvon Goga, Eric Jacques Lefebvre
  • Method of calibrating the mass of components intended to be mounted at the periphery of a rotor
    Patent number: 7553125
    Abstract: A method of calibrating the mass of components intended to be mounted at the periphery of a rotor, the method consisting, for each of the components, in removing by machining a volume of material in a region of the component situated on one of its axes of inertia in order to bring the mass of the component to a predetermined value.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: June 30, 2009
    Assignee: Snecma
    Inventors: Stephane Audic, Eric Jacques Lefebvre, Thierry Nitre
  • TURBINE STATOR FOR AIRCRAFT TURBINE ENGINE INCLUDING A VIBRATION DAMPING DEVICE
    Publication number: 20090097971
    Abstract: This invention relates to a turbine stator (5) for an aircraft turbine engine, comprising: a stator wall (46) supporting a high pressure air injector (50) fixed on the downstream side; an annular abradable element support (54) the lower radial end (54a) of which is fixed to said high pressure air injector and its upper radial end (54b) is fixed to said stator wall, such that they jointly delimit a cavity (58) under pressure. According to the invention, it also comprises at least one vibration damping device (74) located in said cavity (58) under pressure, said vibration damping device being in contact with each of the two elements taken among said stator wall (46) and said annular support (54).
    Type: Application
    Filed: October 8, 2008
    Publication date: April 16, 2009
    Applicant: SNECMA
    Inventors: Mathieu DAKOWSKI, Sandrine Gandelot, Eric Jacques Lefebvre
  • SYSTEM FOR RETAINING BLADES IN A ROTOR
    Publication number: 20070253822
    Abstract: The rotor disk carries an axial retention plate facing slots having blade roots received therein, the disk and the plate are shaped so as to define outer circumferential interlock and inner circumferential interlock.
    Type: Application
    Filed: April 24, 2007
    Publication date: November 1, 2007
    Applicant: SNECMA
    Inventors: Herve Marc Philippe BUISSON, Jean-Luc Christian Yvon Goga, Eric Jacques Lefebvre