Patents by Inventor Pierre Philippe Marie Loheac

Pierre Philippe Marie Loheac 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: 8991749
    Abstract: An aircraft pylon for mounting a dual-flow or triple-flow jet engine, the pylon including an upper surface for connection to the aircraft, two side flanks, and a flange on the lower portion of the pylon. The pylon further includes at least one portion that extends downstream from the cold flow nozzle of the jet engine and lies in the cold flow and, on the portion thereof extending into the cold flow beyond the nozzle, at least one opening, positioned on one of the flanks of the pylon, by which an air stream is injected into or drawn from the gas flow that flows along the flanks of the pylon.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: March 31, 2015
    Assignee: SNECMA
    Inventors: Alain Dravet, Jacques Michel Albert Julliard, Pierre Philippe Marie Loheac
  • Publication number: 20130032663
    Abstract: An aircraft pylon for mounting a dual-flow or triple-flow jet engine, the pylon including an upper surface for connection to the aircraft, two side flanks, and a flange on the lower portion of the pylon. The pylon further includes at least one portion that extends downstream from the cold flow nozzle of the jet engine and lies in the cold flow and, on the portion thereof extending into the cold flow beyond the nozzle, at least one opening, positioned on one of the flanks of the pylon, by which an air stream is injected into or drawn from the gas flow that flows along the flanks of the pylon.
    Type: Application
    Filed: February 25, 2011
    Publication date: February 7, 2013
    Applicant: SNECMA
    Inventors: Alain Dravet, Jacques Michel Albert Julliard, Pierre Philippe Marie Loheac
  • Patent number: 7854123
    Abstract: The pattern relates to a cover for a turbomachine nozzle, the cover having a plurality of patterns each with an outline of triangular shape having a base and two vertices that are spaced downstream and interconnected by a side. For each pattern, the vertices present respective curved outlines and they are interconnected by a curved portion presenting a radius of curvature greater than the radii of curvature of the outlines of said vertices, each side being connected to the trailing edge of the cover via a curved outline presenting a radius of curvature greater than the radii of curvature of the outlines of the vertices and greater than the radius of curvature of the outline of the curved portion, and the vertices and the curved portion are inclined radially towards the inside of the cover, with the curved portion being radially offset outwards relative to the vertices.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: December 21, 2010
    Assignee: Snecma
    Inventors: Dax Au, Pascal Moise Michel Bigot, Pierre Briend, Pierre Philippe Marie Loheac
  • Patent number: 7735776
    Abstract: The present invention relates to an air inlet for a nacelle of a jet engine with a front fan, comprising an upper part (115S), a lower part (115I), an inner lateral part (115int) and an outer lateral part (ext), defining a leading edge (115) between an external wall (111) of the nacelle and an internal wall (113) forming the air supply channel of the jet engine. According to the invention, the air inlet is characterized in that the leading edge of the outer lateral part (115ext) is to the rear with respect to the leading edge of the inner lateral part (115int). Preferably, the leading edge of the upper part (115S) is likewise to the rear with respect to the leading edge of the lower part (115I).
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: June 15, 2010
    Assignee: SNECMA
    Inventors: Philippe Gerard Chanez, Pierre Philippe Marie Loheac
  • Patent number: 7581384
    Abstract: The invention relates to an annular cover for a turbomachine nozzle, the cover having a plurality of patterns extending a trailing edge of said cover and spaced apart circumferentially from one another, each pattern having an outline that is substantially triangular in shape, with a base formed by a portion of the trailing edge of the cover and a vertex spaced downstream from the base and connected thereto by two sides. For each pattern, the vertex presents an outline that is substantially curved; each side is connected to the trailing edge of the cover following an outline that is substantially curved having a radius of curvature that is greater than the radius of curvature of the outline of the vertex; and the outline of each of the sides includes at least one point of inflexion having a tangent that is substantially parallel to the base.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: September 1, 2009
    Assignee: SNECMA
    Inventors: Dax Au, Pascal Moise Michel Bigot, Pierre Briend, Pierre Philippe Marie Loheac
  • Publication number: 20090084111
    Abstract: The invention relates to a cowl for a turbomachine nozzle, the cowl including a plurality of repetitive patterns disposed to extend a trailing edge of said cowl and spaced circumferentially apart from one another. Each pattern is in the form of a quadrilateral having a base that is formed by a portion of the trailing edge of the cowl and two vertices that are spaced downstream from the base and that are connected thereto via two sides, each side having the shape of a parabola. Each pattern is asymmetrical relative to a midplane of the pattern containing a longitudinal axis of said cowl, and it comprises a first portion inclined radially towards the inside of the cowl, and a second portion inclined radially towards the outside of the cowl.
    Type: Application
    Filed: September 15, 2008
    Publication date: April 2, 2009
    Applicant: SNECMA
    Inventors: Sebastien Jean-Paul AEBERLI, Pierre Philippe Marie Loheac, Stephane Jacques Francois Thomas, Alexandre Alfred Gaston Vuillemin, Kamel Zeggai
  • Publication number: 20080105487
    Abstract: The invention relates to a mixer for a bypass turbomachine, the mixer comprising a cylindrical member having a sinusoidal portion at its downstream end defining inner lobes and outer lobes distributed circumferentially, each outer lobe comprising a pair of radial walls interconnected by an outer curvilinear dome, each inner lobe comprising a pair of radial walls interconnected by an inner curvilinear dome, the walls of the outer lobes radially extending the walls of the inner lobes, the radial walls of the outer lobes and of the inner lobes presenting an outline that is substantially curved with at least one point of inflection.
    Type: Application
    Filed: June 18, 2007
    Publication date: May 8, 2008
    Applicant: SNECMA
    Inventors: Pierre Philippe Marie Loheac, Alexandre Alfred Gaston Vuillemin
  • Publication number: 20080041062
    Abstract: The invention relates to an annular cover for a turbomachine nozzle, the cover having a plurality of patterns extending a trailing edge of said cover and spaced apart circumferentially from one another, each pattern having an outline that is substantially triangular in shape, with a base formed by a portion of the trailing edge of the cover and a vertex spaced downstream from the base and connected thereto by two sides. For each pattern, the vertex presents an outline that is substantially curved; each side is connected to the trailing edge of the cover following an outline that is substantially curved having a radius of curvature that is greater than the radius of curvature of the outline of the vertex; and the outline of each of the sides includes at least one point of inflexion having a tangent that is substantially parallel to the base.
    Type: Application
    Filed: June 7, 2007
    Publication date: February 21, 2008
    Applicant: SNECMA
    Inventors: Dax Au, Pascal Moise Michel Bigot, Pierre Briend, Pierre Philippe Marie Loheac
  • Publication number: 20070176052
    Abstract: The present invention relates to an air inlet for a nacelle of a jet engine with a front fan, comprising an upper part (115S), a lower part (115I), an inner lateral part (115int) and an outer lateral part (ext), defining a leading edge (115) between an external wall (111) of the nacelle and an internal wall (113) forming the air supply channel of the jet engine. According to the invention, the air inlet is characterized in that the leading edge of the outer lateral part (115ext) is to the rear with respect to the leading edge of the inner lateral part (115int). Preferably, the leading edge of the upper part (115S) is likewise to the rear with respect to the leading edge of the lower part (115I).
    Type: Application
    Filed: January 26, 2007
    Publication date: August 2, 2007
    Applicant: SNECMA
    Inventors: Philippe Gerard CHANEZ, Pierre Philippe Marie Loheac