Patents by Inventor Yann Pascal Raymond Rene Lebret

Yann Pascal Raymond Rene Lebret 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 USING LASER SHOCK IMPACTS TO PRODUCE RAISED ELEMENTS ON A WALL SURFACE CAPABLE OF BEING SWEPT BY A FLUID IN ORDER TO CONTROL THE INTENSITY OF TURBULENCE IN A TRANSITION ZONE
    Publication number: 20130333213
    Abstract: A method for producing, on the surface of a wall capable of being swept by a fluid, raised elements forming disruptions of the boundary layer is disclosed. The method includes applying laser shocks to the surface so as to create peaks on the edge of the impact zones such that the peaks form the disruptive raised elements.
    Type: Application
    Filed: August 9, 2012
    Publication date: December 19, 2013
    Applicant: SNECMA
    Inventors: Yann Pascal Raymond René LEBRET, Claude Marcel Mons
  • Method of using laser shock impacts to produce raised elements on a wall surface capable of being swept by a fluid in order to control the intensity of turbulence in a transition zone
    Patent number: 8607456
    Abstract: A method for producing, on the surface of a wall capable of being swept by a fluid, raised elements forming disruptions of the boundary layer is disclosed. The method includes applying laser shocks to the surface so as to create peaks on the edge of the impact zones such that the peaks form the disruptive raised elements.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: December 17, 2013
    Assignee: SNECMA
    Inventors: Yann Pascal Raymond Rene Lebret, Claude Marcel Mons
  • Method of using laser shock impacts to produce raised elements on a wall surface capable of being swept by a fluid in order to control the intensity of turbulence in a transition zone
    Patent number: 8256116
    Abstract: A method for producing, on the surface of a wall capable of being swept by a fluid, raised elements forming disruptions of the boundary layer is disclosed. The method includes applying laser shocks to the surface so as to create peaks on the edge of the impact zones such that the peaks form the disruptive raised elements.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: September 4, 2012
    Assignee: SNECMA
    Inventors: Yann Pascal Raymond Rene Lebret, Claude Marcel Mons
  • Turbomachine casing with treatment, a compressor, and a turbomachine including such a casing
    Patent number: 8100629
    Abstract: A casing supporting a series of stationary vanes between which there are disposed series of moving blades movable in rotation about a longitudinal axis in which the radially outer ends of the moving blades being close to the inside face of the casing is disclosed. The casing includes, at least over an annulus situated facing one of the series of moving blades, at least one casing treatment zone facing towards the blades and including a surface relief disturbance in the form of a groove of closed outline. The invention is applicable to controlling rotating separation in a turbomachine compressor.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: January 24, 2012
    Assignee: SNECMA
    Inventor: Yann Pascal Raymond Rene Lebret
  • METHOD FOR FORMING RAISED ELEMENTS DISRUPTIVE OF THE BOUNDARY LAYER
    Publication number: 20090083979
    Abstract: The present invention relates to a method for producing, on the surface of a wall capable of being swept by a fluid, raised elements forming disruptions of the boundary layer. It is characterized in that laser shocks are applied to said surface so as to create peaks on the edge of the impact zones, the peaks forming said disruptive raised elements.
    Type: Application
    Filed: September 24, 2008
    Publication date: April 2, 2009
    Applicant: SNECMA
    Inventors: Yann Pascal Raymond Rene LEBRET, Claude Marcel Mons
  • Nose cone for a turbomachine
    Patent number: 7419364
    Abstract: A nose cone for a turbomachine, such as a turbojet in particular, the cone being mounted on the end of a shaft carrying fan blades and being associated with a controlled axial displacement mechanism, thereby making it possible to modify the axial position of the cone relative to the fan blades.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: September 2, 2008
    Assignee: SNECMA
    Inventors: Edouard Marie Gabriel Ramstein, Yann Pascal Raymond Rene Lebret
  • TURBOMACHINE CASING WITH TREATMENT, A COMPRESSOR, AND A TURBOMACHINE INCLUDING SUCH A CASING
    Publication number: 20080199306
    Abstract: The invention relates to a casing supporting series of stationary vanes between which there are disposed series of moving blades movable in rotation about a longitudinal axis, the radially outer ends of said moving blades being close to the inside face of the casing. In characteristic manner, the casing includes, at least over an annulus situated facing one of the series of moving blades, at least one casing treatment zone facing towards the blades and including at a surface relief disturbance in the form of a groove of closed outline. The invention is applicable to controlling rotating separation in a turbomachine compressor.
    Type: Application
    Filed: February 21, 2008
    Publication date: August 21, 2008
    Applicant: SNECMA
    Inventor: Yann Pascal Raymond Rene LEBRET