Patents by Inventor Benoit LARDY

Benoit LARDY 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).

  • Inertia friction welding method for welding together two portions of a rotary subassembly of a turbine engine
    Patent number: 9597748
    Abstract: An inertia friction welding (IFW) method for welding together two portions of a rotary subassembly for a turbine engine is provided. At least one of the portions includes a plurality of hooked teeth at its periphery for anchoring blade roots. One of the two portions for welding together is held by a clamp and set into rotation by a motor, and the other one of the two portions for welding together is held by a torque take-up ring gear mounted on a carriage that is movable in translation. In order to avoid any crack formation in the hooks of the teeth during welding, the plurality of hooked teeth is covered with a damper device for shifting the frequency of the vibratory response of the teeth, thereby creating damping.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: March 21, 2017
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Benoit Lardy, Dominique Bernard Lourdin
  • INERTIA FRICTION WELDING METHOD FOR WELDING TOGETHER TWO PORTIONS OF A ROTARY SUBASSEMBLY OF A TURBINE ENGINE
    Publication number: 20160339539
    Abstract: An inertia friction welding (IFW) method for welding together two portions of a rotary subassembly for a turbine engine is provided. At least one of the portions includes a plurality of hooked teeth at its periphery for anchoring blade roots. One of the two portions for welding together is held by a clamp and set into rotation by a motor, and the other one of the two portions for welding together is held by a torque take-up ring gear mounted on a carriage that is movable in translation. In order to avoid any crack formation in the hooks of the teeth during welding, the plurality of hooked teeth is covered with a damper device for shifting the frequency of the vibratory response of the teeth, thereby creating damping.
    Type: Application
    Filed: January 16, 2015
    Publication date: November 24, 2016
    Applicant: SNECMA
    Inventors: Benoit LARDY, Dominique Bernard LOURDIN