Patents by Inventor Pierre-Yves Maillard

Pierre-Yves Maillard 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: 7634916
    Abstract: Unbalanced mass effects can occur at the low pressure compressor (5) of an aircraft engine. Stiffeners (20) are proposed to increase the stiffness of the assembly and therefore reduce possible cracks due to accidental unbalanced masses, one end (22) of the stiffener can be fixed to the engine casing (7) at the structural arm (10), and the other end (32) can be fixed to the compressor (5), preferably at the upstream face of the third guide vane (RD3). Advantageously, the stiffeners (20) are made of two parts fixed to each other; their manufacturing is optimized to limit the additional weight due to their presence.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: December 22, 2009
    Assignee: Snecma
    Inventors: Jerome Mace, Claude Lejars, Pierre-Yves Maillard, Francois Buffenoir, Thierry Niclot
  • Patent number: 7214030
    Abstract: The system enables an increase in the guidance length of the outer pivot of the vane, so that the bushing can be extracted without needing to open the stator casing. It mainly includes a bushing placed inside a bossing of the stator, the length of which is greater than the length of the bossing projecting outwards from the bossing. Thus, the contact length of the outer pivot is prolonged. The bushing is terminated at its end by a gripping hook to enable extraction of the bushing by means of a claw. It is advantageously also provided with a positioning edge.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: May 8, 2007
    Assignee: Snecma Moteurs
    Inventors: Jean-Baptiste Arilla, Pierre-Yves Maillard, Alain Marc Lucien Bromann
  • Publication number: 20070039309
    Abstract: Unbalanced mass effects can occur at the low pressure compressor (5) of an aircraft engine. Stiffeners (20) are proposed to increase the stiffness of the assembly and therefore reduce possible cracks due to accidental unbalanced masses, one end (22) of the stiffener can be fixed to the engine casing (7) at the structural arm (10), and the other end (32) can be fixed to the compressor (5), preferably at the upstream face of the third guide vane (RD3). Advantageously, the stiffeners (20) are made of two parts fixed to each other; their manufacturing is optimized to limit the additional weight due to their presence.
    Type: Application
    Filed: July 5, 2005
    Publication date: February 22, 2007
    Applicant: SNECMA MOTEURS
    Inventors: Jerome Mace, Claude Lejars, Pierre-Yves Maillard, Francois Buffenoir, Thierry Niclot
  • Publication number: 20050089390
    Abstract: The invention concerns a turbine engine with an axis of rotation B comprising a blower casing (10) and a blower (V) with movable blades (17). A clearance lies between the internal surface of the casing and the free ends of the blades. A bearing of the blower is connected to fixed parts of the turbine engine by connections such that, in the event of a load on the blower blades, these connections break and the axis of rotation of the blower oscillates about the axis of rotation B. The casing comprises, bonded to its internal surface and over at least part of the extent of the clearance, a layer of thermoformable foam (19) placed opposite the ends of the blades (17) of the blower (V).
    Type: Application
    Filed: August 2, 2004
    Publication date: April 28, 2005
    Applicant: SNECMA MOTEURS
    Inventors: Eric Gerain, Eric Celerier, Francois Brefort, Pierre-Yves Maillard
  • Publication number: 20050036885
    Abstract: The system enables an increase in the guidance length of the outer pivot (11) of the vane (10), so that the bushing (50) can be extracted without needing to open the stator casing. It mainly includes a bushing (50) placed inside a bossing (21) of the stator, the length of which is greater than the length of the bossing (21) projecting outwards from the bossing. Thus, the contact length of the outer pivot (11) is prolonged. The bushing is terminated at its end by a gripping hook (41) to enable extraction of the bushing by means of a claw. It is advantageously also provided with a positioning edge (42).
    Type: Application
    Filed: July 12, 2004
    Publication date: February 17, 2005
    Applicant: SNECMA MOTEURS
    Inventors: Jean-Baptiste Arilla, Pierre-Yves Maillard, Alain Bromann