Patents by Inventor Jean-Frederic Pierre Joseph BRUHAT

Jean-Frederic Pierre Joseph BRUHAT 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: 10865645
    Abstract: The invention relates to a method (100) for manufacturing a turbomachine fan comprising a plurality of blades mounted on a disc extending along a longitudinal axis, said method comprising the following steps of: —measuring (102) at least one structural parameter of each of the blades in the cold state, and, for each of the blades, estimating (103) at least one structural parameter in operation relating to a blade from the structural parameter(s) measured on said blade in the cold state, —determining (104) an optimal sequence of the blades around the disc from the structural parameters estimated in operation for each of the blades, and —mounting (105) the blades on the disc in the optimal sequence thus determined.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: December 15, 2020
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Anthony Bernard Germain Lafitte, Jean-Frederic Pierre Joseph Bruhat, Frederic Jean-Bernard Pouzadoux, Jean-Michel Roux
  • Patent number: 10794218
    Abstract: A hub of an intermediate casing for a dual-flow turbine engine includes a discharge flow duct extending between an inner shroud and an outer shroud of the hub, the discharge flow duct leading into the secondary flow space through an outlet opening formed in the outer shroud, the outlet opening included in a discharge plane substantially tangential to the outer shroud; and discharge fins including an upstream fin and a downstream fin. An upstream acute angle between the discharge plane and the skeleton line of the upstream fin is smaller than a downstream acute angle between the discharge plane and the skeleton line of the downstream fin.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: October 6, 2020
    Assignee: Safran Aircraft Engines
    Inventors: Jean-Frederic Pierre Joseph Bruhat, Philippe Jacques Pierre Fessou, Benjamin Lukowski
  • Patent number: 10480454
    Abstract: The invention relates to a hub (2) of an intermediate casing (1) for a bypass turbomachine comprising: —a bleed stream duct (18), —a bleed valve, comprising a mobile door at the inlet orifice to the bleed stream duct (18), —a set of bleed vanes (22) which are mounted with the ability to rotate about a pivot (26) in the bleed stream duct (18) between an open configuration in which a flow of air coming from the inlet orifice (4) passes between the bleed vanes (22) and a closed configuration, the pivot (26) for each bleed vane (22) being closer to its leading edge (BA) than to its trailing edge (BF).
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: November 19, 2019
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventor: Jean-Frederic Pierre Joseph Bruhat
  • Publication number: 20180195465
    Abstract: The invention relates to a hub (2) of an intermediate casing (1) for a bypass turbomachine comprising: —a bleed stream duct (18), —a bleed valve, comprising a mobile door at the inlet orifice to the bleed stream duct (18), —a set of bleed vanes (22) which are mounted with the ability to rotate about a pivot (26) in the bleed stream duct (18) between an open configuration in which a flow of air coming from the inlet orifice (4) passes between the bleed vanes (22) and a closed configuration, the pivot (26) for each bleed vane (22) being closer to its leading edge (BA) than to its trailing edge (BF).
    Type: Application
    Filed: June 16, 2016
    Publication date: July 12, 2018
    Inventor: Jean-Frederic Pierre Joseph BRUHAT
  • Publication number: 20180171803
    Abstract: The invention relates to a method (100) for manufacturing a turbomachine fan comprising a plurality of blades mounted on a disc extending along a longitudinal axis, said method comprising the following steps of: —measuring (102) at least one structural parameter of each of the blades in the cold state, and, for each of the blades, estimating (103) at least one structural parameter in operation relating to a blade from the structural parameter(s) measured on said blade in the cold state, —determining (104) an optimal sequence of the blades around the disc from the structural parameters estimated in operation for each of the blades, and —mounting (105) the blades on the disc in the optimal sequence thus determined.
    Type: Application
    Filed: June 8, 2016
    Publication date: June 21, 2018
    Applicant: Safran Aircraft Engines
    Inventors: Anthony Bernard Germain LAFITTE, Jean-Frederic Pierre Joseph BRUHAT, Frederic Jean-Bernard POUZADOUX, Jean-Michel ROUX
  • Publication number: 20180080337
    Abstract: A hub of an intermediate casing for a dual-flow turbine engine includes a discharge flow duct extending between an inner shroud and an outer shroud of the hub, the discharge flow duct leading into the secondary flow space through an outlet opening formed in the outer shroud, the outlet opening included in a discharge plane substantially tangential to the outer shroud; and discharge fins including an upstream fin and a downstream fin. An upstream acute angle between the discharge plane and the skeleton line of the upstream fin is smaller than a downstream acute angle between the discharge plane and the skeleton line of the downstream fin.
    Type: Application
    Filed: March 31, 2016
    Publication date: March 22, 2018
    Applicant: Safran Aircraft Engines
    Inventors: Jean-Frederic Pierre Joseph BRUHAT, Philippe Jacques Pierre FESSOU, Benjamin LUKOWSKI