Patents by Inventor Frédéric Paul Eichstadt

Frédéric Paul Eichstadt 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).

  • Publication number: 20240003316
    Abstract: A rear part for a turbojet engine includes a variable-geometry nozzle in which a convergent flap is provided with a lever supporting a bearing roller arranged axially between an upstream bearing wall and a downstream bearing wall, which are rigidly secured to a movable part capable of moving axially on command with respect to an upstream stator structure in such a way that the bearing roller is free to move with respect to the upstream and downstream bearing walls in a radial direction. During a downstream movement of the movable part, the upstream bearing wall pushes the lever to pivot a downstream end of the convergent flap towards the longitudinal axis. Operation of the drive mechanism for moving the movable part can thus be optimized while limiting the size and the mass of the mechanism for controlling the flaps.
    Type: Application
    Filed: November 5, 2021
    Publication date: January 4, 2024
    Inventors: Thierry KOHN, Frédéric Paul EICHSTADT, Elric Georges André FREMONT
  • Patent number: 11713730
    Abstract: In a convergent-divergent flap pair for a turbojet engine nozzle of the variable-geometry convergent-divergent type, the convergent flap and the divergent flap include respective cooling-air ducts connected to one another through air passage openings formed in respective contact surfaces of the convergent flap and of the divergent flap arranged facing one another.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: August 1, 2023
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Thierry Kohn, Frédéric Paul Eichstädt, Florent Luc Lacombe, François Leglaye, Brice Marie Yves Emile Le Pannerer
  • Patent number: 11572833
    Abstract: An aircraft engine assembly includes a dual-flow turbine engine, a pylon for mounting the turbine engine, thrust-absorbing rods connecting the turbine engine to the pylon, and an inter-flow compartment housing a lubricant tank. In order to facilitate the filling of the tank, a lubricant supply path is fluidly connected to the tank, this path passing through an inner hollow region of at least one of the two thrust-absorbing rods.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: February 7, 2023
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Antoine Elie Hellegouarch, Frédéric Paul Eichstadt, Quentin Matthias Emmanuel Garnaud
  • Publication number: 20220290631
    Abstract: In a convergent-divergent flap pair for a turbojet engine nozzle of the variable-geometry convergent-divergent type, the convergent flap and the divergent flap include respective cooling-air ducts connected to one another through air passage openings formed in respective contact surfaces of the convergent flap and of the divergent flap arranged facing one another.
    Type: Application
    Filed: August 27, 2020
    Publication date: September 15, 2022
    Inventors: Thierry KOHN, Frédéric Paul EICHSTADT, Florent Luc LACOMBE, François LEGLAYE, Brice Marie Yves Emile LE PANNERER
  • Patent number: 11035294
    Abstract: Bypass turbine engine, comprising a gas generator surrounded by a nacelle and connected to the latter by tubular arms, a primary flow duct within the gas generator being externally delimited by a first annular casing of the gas generator, and a bypass flow duct of a secondary flow around the gas generator being internally delimited by a second annular casing of the gas generator and externally by a third annular casing of the nacelle, the second and third casings being connected together by at least some of the tubular arms, characterized in that it comprises at least one lubricant tank located in the annular space that extends between the first and second casings, and lubricant supply means of the tank or of each tank that comprise at least one supply line extending from the or each tank to at least one filler opening located at the level of the third casing, passing within at least one of said arms connecting the second and third casings.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: June 15, 2021
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Frédéric Paul Eichstadt, Nicolas Maurice Hervé Aussedat, Bellal Waissi
  • Publication number: 20210115852
    Abstract: An aircraft engine assembly includes a dual-flow turbine engine, a pylon for mounting the turbine engine, thrust-absorbing rods connecting the turbine engine to the pylon, and an inter-flow compartment housing a lubricant tank. In order to facilitate the filling of the tank, a lubricant supply path is fluidly connected to the tank, this path passing through an inner hollow region of at least one of the two thrust-absorbing rods.
    Type: Application
    Filed: April 2, 2019
    Publication date: April 22, 2021
    Inventors: Antoine Elie HELLEGOUARCH, Frédéric Paul EICHSTADT, Quentin Matthias Emmanuel GARNAUD
  • Patent number: 10562638
    Abstract: The invention relates to a cradle (10) for an aircraft turbopropeller engine (12) of a substantially axial orientation, comprising a front arch (16) and a rear arch (18) extending transversely relative to said axial direction (A), said arches (16, 18) being open at their lower ends and connected to each other by at least one axial longeron (34) extending between said arches (16, 18), characterised in that the longeron (34) is arranged in an upper portion of the cradle (10) and is formed in a single piece with the front arch (16).
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: February 18, 2020
    Assignee: SAFRAN AIRCFRAFT ENGINES
    Inventors: Frederic Paul Eichstadt, Nora El Ghannam, Romain Jean-Claude Ferrier, Antoine Elie Hellegouarch
  • Publication number: 20190270524
    Abstract: The invention relates to a cradle (10) for an aircraft turbopropeller engine (12) of a substantially axial orientation, comprising a front arch (16) and a rear arch (18) extending transversely relative to said axial direction (A), said arches (16, 18) being open at their lower ends and connected to each other by at least one axial longeron (34) extending between said arches (16, 18), characterised in that the longeron (34) is arranged in an upper portion of the cradle (10) and is formed in a single piece with the front arch (16).
    Type: Application
    Filed: July 20, 2017
    Publication date: September 5, 2019
    Inventors: Frederic Paul EICHSTADT, Nora EL GHANNAM, Romain Jean-Claude FERRIER, Antoine Elie HELLEGOUARCH
  • Publication number: 20190112982
    Abstract: Bypass turbine engine, comprising a gas generator surrounded by a nacelle and connected to the latter by tubular arms, a primary flow duct within the gas generator being externally delimited by a first annular casing of the gas generator, and a bypass flow duct of a secondary flow around the gas generator being internally delimited by a second annular casing of the gas generator and externally by a third annular casing of the nacelle, the second and third casings being connected together by at least some of the tubular arms, characterized in that it comprises at least one lubricant tank located in the annular space that extends between the first and second casings, and lubricant supply means of the tank or of each tank that comprise at least one supply line extending from the or each tank to at least one filler opening located at the level of the third casing, passing within at least one of said arms connecting the second and third casings.
    Type: Application
    Filed: October 10, 2018
    Publication date: April 18, 2019
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Frédéric Paul Eichstadt, Nicolas Maurice Hervé Aussedat, Bellal Waissi
  • Publication number: 20180134402
    Abstract: A cradle for supporting an aircraft turbine engine, said cradle comprising an attachment interface for attaching a gas generator of the turbine engine. The cradle is produced in at least two portions comprising: an upper half-cradle, which is designed to be attached to a wing of the aircraft, a lower half-cradle, which is movable between a position in which it is connected to the upper half-cradle and a position in which it is disconnected from the upper half-cradle, and which comprises at least a portion of the attachment interface for attaching the gas generator, a guide configured for slidably guiding the lower half-cradle between the connected and disconnected positions thereof, and at least one lock for locking the lower half-cradle in the connected position thereof.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Antoine Elie Hellegouarch, Frédéric Paul Eichstadt, Thomas Gérard Daniel Riviere
  • Patent number: 8037687
    Abstract: In a bypass turbomachine, at least one air takeoff orifice is provided in the primary channel, said orifice leading to an air takeoff pipe housed inside an air inlet sleeve of the nacelle. The air takeoff pipe opens out in the vicinity of the pylon into two air diffusion pipes each secured to a respective maintenance cover, each air diffusion pipe opening out into an air injection pipe secured to a thrust reverser cover and itself opening out to the outside of the nacelle via the trailing edge thereof, each air injection pipe being suitable for uncoupling from the corresponding air diffusion pipe when the corresponding thrust reverser cover slides downstream.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: October 18, 2011
    Assignee: SNECMA
    Inventors: Bruno Albert Beutin, Jacky Raphael Michel Derenes, Frederic Paul Eichstadt, Alexandre Alfred Gaston Vuillemin
  • Publication number: 20090064658
    Abstract: In a bypass turbomachine, at least one air takeoff orifice is provided in the primary channel, said orifice leading to an air takeoff pipe housed inside an air inlet sleeve of the nacelle. The air takeoff pipe opens out in the vicinity of the pylon into two air diffusion pipes each secured to a respective maintenance cover, each air diffusion pipe opening out into an air injection pipe secured to a thrust reverser cover and itself opening out to the outside of the nacelle via the trailing edge thereof, each air injection pipe being suitable for uncoupling from the corresponding air diffusion pipe when the corresponding thrust reverser cover slides downstream.
    Type: Application
    Filed: August 8, 2008
    Publication date: March 12, 2009
    Applicant: SNECMA
    Inventors: Bruno Albert Beutin, Jacky Raphael Michel Derenes, Frederic Paul Eichstadt, Alexandre Alfred Gaston Vuillemin
  • Patent number: 7290988
    Abstract: A device for rotationally blocking a retaining ring (20) on a rotor disk (10) includes successive first (162, 262) and second (164, 264) blocking hooks of the disk (10), at least one cleat (302, 304, 306) of the retaining ring (20) arranged close to a split (24) in the ring (20). The position of the at least one cleat (302, 304, 306) on the retaining ring (20) is such that, when the retaining ring (20) is in place in a groove (22) situated in the rotor disk (10), the at least one cleat (302, 304, 306) is in abutment against the first blocking hook (162, 262), and the split (24) is covered by the second blocking hook (164, 264).
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: November 6, 2007
    Assignee: SNECMA
    Inventors: Erick Jacques Boston, Alain Marc Lucien Bromann, Pierre Debeneix, Frederic Paul Eichstadt
  • Patent number: 5795128
    Abstract: A control device for the pivot of a variably settable movable vane mounted so that the pivot is integrated in an air manifold comprises a rotatable mounting for pivotally mounting the pivot in a bore in a platform fixed to the manifold by upstream and downstream flanges, a link for rotating the pivot to vary the setting of the vane, and a ring mounted outside the manifold and connected to the link for controlling the setting of the vane. The rotatable mounting for pivotally mounting the pivot in the bore comprises an end piece which is fitted on the pivot and which itself fits within a hollow friction bush fixed in the bore. The bush is provided with a slit extending partly around its circumference, and the upstream end of the link projects through the slit via apertures in the manifold and the platform to engage with an eye provided on the pivot end piece which receives a correspondingly shaped intermediate portion of the end piece.
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: August 18, 1998
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "SNECMA"
    Inventor: Frederic Paul Eichstadt