Patents by Inventor Jean-Luc Le Strat

Jean-Luc Le Strat 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).

  • Balanced turbine engine portion and turbine engine
    Patent number: 10415424
    Abstract: A balanced turbomachine part including one angular sector arranged to form a balancing ring centered about a ring axis. The angular sector includes a plurality of fasteners, a bearing face having a complementary shape to the balancing ring, the angular sector bearing on the bearing face. The part further includes a plurality of balancing masses each fastened to the corresponding fastener of the angular sector, at least one of the balancing masses also acting as a fastener for fastening the angular sector on the bearing face.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: September 17, 2019
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Jean-Luc Le Strat, Herve Pohier
  • Balancing screw, device and method for a rotating part of a turbine engine
    Patent number: 9970298
    Abstract: A balancing device for a rotating part of a turbomachine, includes a ferrule pierced with a plurality of ports, a balancing screw passing through each port, each balancing screw including a body and a head, the head of each balancing screw being pierced with a recess, the balancing screws being of at least one first type, the recess of the screws of the first type being formed by a driving recess from which an additional recess extends.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: May 15, 2018
    Assignee: SNECMA
    Inventors: Jean-Luc Le Strat, Hervé Pohier, Romain Jean-Louis Robert Thory
  • BALANCED TURBINE ENGINE PORTION AND TURBINE ENGINE
    Publication number: 20160290156
    Abstract: A balanced turbomachine part including one angular sector arranged to form a balancing ring centered about a ring axis. The angular sector includes a plurality of fasteners, a bearing face having a complementary shape to the balancing ring, the angular sector bearing on the bearing face. The part further includes a plurality of balancing masses each fastened to the corresponding fastener of the angular sector, at least one of the balancing masses also acting as a fastener for fastening the angular sector on the bearing face.
    Type: Application
    Filed: November 24, 2014
    Publication date: October 6, 2016
    Applicant: SNECMA
    Inventors: Jean-Luc LE STRAT, Herve POHIER
  • BALANCING SCREW, DEVICE AND METHOD FOR A ROTATING PART OF A TURBINE ENGINE
    Publication number: 20150354360
    Abstract: A balancing device for a rotating part of a turbomachine, includes a ferrule pierced with a plurality of ports, a balancing screw passing through each port, each balancing screw including a body and a head, the head of each balancing screw being pierced with a recess, the balancing screws being of at least one first type, the recess of the screws of the first type being formed by a driving recess from which an additional recess extends.
    Type: Application
    Filed: January 6, 2014
    Publication date: December 10, 2015
    Inventors: Jean-Luc LE STRAT, Hervé POHIER, Romain Jean-Louis Robert THORY
  • High pressure turbine of a turbomachine with improved assembly of the mobile blade radial clearance control box
    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
  • HIGH PRESSURE TURBINE OF A TURBOMACHINE WITH IMPROVED ASSEMBLY OF THE MOBILE BLADE RADIAL CLEARANCE CONTROL BOX
    Publication number: 20110076135
    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: Application
    Filed: May 25, 2009
    Publication date: March 31, 2011
    Applicant: SNECMA
    Inventors: Alain Dominique Gendraud, Delphine Leroux, Jean-Luc Le Strat, Pascal Tatiossian