Patents by Inventor Thierry KOHN

Thierry KOHN 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: 20240141852
    Abstract: A rear portion of a convergent-divergent nozzle turbojet engine includes a device for controlling the position of a divergent flap relative to that of a convergent flap, including a first connecting rod having a first end portion hinged to the convergent flap and an opposite second end portion, a second connecting rod having a first end portion hinged to the divergent flap and an opposite second end portion, and a third connecting rod having a first end portion hinged to a synchronization ring and an opposite second end portion. The second end portion of the first connecting rod is hinged to the second end portion of the second connecting rod and/or to the second end portion of the third connecting rod, and the second end portion of the third connecting rod is hinged to the second end portion of the second connecting rod.
    Type: Application
    Filed: February 14, 2022
    Publication date: May 2, 2024
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Thierry KOHN, Dimitri Thomas KRAJKA
  • 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: 11739712
    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 including respective ducts for circulation of cooling air connected to one another to allow cooling of each of the flaps. The duct of the divergent flap includes an impingement cooling cavity defined by two walls of lateral ends provided with air passage orifices through which the impingement cooling cavity opens towards the outside.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: August 29, 2023
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: François Leglaye, Florent Luc Lacombe, Pierre André Gabriel Malbois, Sylvain Marcel Oblaza, Thierry Kohn
  • 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
  • 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: 11433336
    Abstract: A drive pinion of an air/oil separator of an accessory gearbox of a turbomachine, the air/oil separator being configured to be supplied at the input by an air flow to de-oil and to supply at the output, on the one hand, a de-oiled air flow and, on the other hand, an oil flow by centrifugation, the pinion being configured to drive the separator rotationally along an axis of rotation, the pinion being mounted facing a passage opening of the separator, the pinion comprising at least one guiding opening traversing the web plate defining at least one guiding surface inclined with respect to the axis of rotation in such a way as to guide along the axis an air flow to de-oil into the separator or a de-oiled air flow out of the separator via the guiding opening of the pinion.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: September 6, 2022
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Alexis Pereira, Thierry Kohn
  • Publication number: 20220275771
    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 including respective ducts for circulation of cooling air connected to one another to allow cooling of each of the flaps. The duct of the divergent flap includes an impingement cooling cavity defined by two walls of lateral ends provided with air passage orifices through which the impingement cooling cavity opens towards the outside.
    Type: Application
    Filed: August 27, 2020
    Publication date: September 1, 2022
    Inventors: François LEGLAYE, Florent Luc LACOMBE, Pierre André Gabriel MALBOIS, Sylvain Marcel OBLAZA, Thierry KOHN
  • Patent number: 11384650
    Abstract: The invention relates to a lead-through arm (30) for the auxiliaries of a turbomachine, intended to be mounted in a substantially radial direction of the turbomachine. The lead-through arm (30) comprises two fairing walls (32) connected at one of the axial ends thereof by a connecting element (34) and a transverse firewall (38) connecting the two fairing walls (32), characterised in that it comprises a firebreak member (36) disposed in the radial direction, said member (36) being elastically deformable and being inserted axially, and constrained elastically, between an axial end of the firewall (38) and the connecting element (34).
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: July 12, 2022
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventor: Thierry Kohn
  • Patent number: 11248487
    Abstract: A dual-flow turbomachine generally includes a cooling and turbine clearance control system located in a primary air flow path of the turbomachine, supplied a scoop configured to take air from a secondary air flow path arranged around the primary air flow path through an air inlet of the scoop, where the scoop may further include one wall configured to be arranged in the extension of a wall of the secondary flow path, and further where the air inlet may be formed in and flush with the wall.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: February 15, 2022
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Pascal Xavier Delaitre, Thierry Kohn, Bruna Manuela Ramos, Florian Benjamin Kévin Lacroix, Antonin Etienne Diego Tessiereau
  • Patent number: 11199203
    Abstract: The invention relates to a jet pump collector comprising a convergent duct extending along the longitudinal axis (AX) and comprising an intake opening for a fluid to be withdrawn, this convergent duct having a restriction shape terminated by a reduced end having a smaller cross-section than its intake opening. This convergent duct is equipped with a tube (17) orientated perpendicular to the longitudinal axis longitudinal (AX), this tube (17) comprising an outer portion extending outside of the convergent duct and being terminated by an intake opening (31) for a propulsion fluid, and an inner portion extending in the convergent duct and comprising a plurality of distribution openings (18, 19) for the propulsion fluid which are orientated towards the reduced end.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: December 14, 2021
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Thierry Kohn, Benissa Boujida, Benjamin Lemenand, Alexis Pereira
  • Patent number: 10906667
    Abstract: A method for transporting a turbine engine held by a transport kit by a carriage. The transport kit connected to a connection member hoists the engine to connect to an aircraft fuselage. The transport kit is a structure which includes a hoisting interface (328) arranged on a rigid hoisting arm (318) which extends over the turbine engine and is connected to a rigid transport arm (316) which extends over a lateral side of the turbine engine. The transport arm is connected to at least two engine mounts (340) solid with the turbine engine. The transport arm (316), or one of the engine mounts connected to the transport arm, includes a transport interface (324) that can be supported by a bearing element (332) of a truck (326) used for transporting the turbine engine.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: February 2, 2021
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Thierry Kohn, Stephane Baucher, Damien Cesar, Alexandre Dervaux, Franck Dubreucq, Thibaud Mangin
  • Publication number: 20200340366
    Abstract: The invention relates to a lead-through arm (30) for the auxiliaries of a turbomachine, intended to be mounted in a substantially radial direction of the turbomachine. The lead-through arm (30) comprises two fairing walls (32) connected at one of the axial ends thereof by a connecting element (34) and a transverse firewall (38) connecting the two fairing walls (32), characterised in that it comprises a firebreak member (36) disposed in the radial direction, said member (36) being elastically deformable and being inserted axially, and constrained elastically, between an axial end of the firewall (38) and the connecting element (34).
    Type: Application
    Filed: January 10, 2019
    Publication date: October 29, 2020
    Inventor: Thierry KOHN
  • Publication number: 20200316506
    Abstract: A drive pinion of an air/oil separator of an accessory gearbox of a turbomachine, the air/oil separator being configured to be supplied at the input by an air flow to de-oil and to supply at the output, on the one hand, a de-oiled air flow and, on the other hand, an oil flow by centrifugation, the pinion being configured to drive the separator rotationally along an axis of rotation, the pinion being mounted facing a passage opening of the separator, the pinion comprising at least one guiding opening traversing the web plate defining at least one guiding surface inclined with respect to the axis of rotation in such a way as to guide along the axis an air flow to de-oil into the separator or a de-oiled air flow out of the separator via the guiding opening of the pinion.
    Type: Application
    Filed: March 30, 2020
    Publication date: October 8, 2020
    Inventors: Alexis Pereira, Thierry Kohn
  • Publication number: 20200263707
    Abstract: The invention relates to a jet pump collector comprising a convergent duct extending along the longitudinal axis (AX) and comprising an intake opening for a fluid to be withdrawn, this convergent duct having a restriction shape terminated by a reduced end having a smaller cross-section than its intake opening. This convergent duct is equipped with a tube (17) orientated perpendicular to the longitudinal axis longitudinal (AX), this tube (17) comprising an outer portion extending outside of the convergent duct and being terminated by an intake opening (31) for a propulsion fluid, and an inner portion extending in the convergent duct and comprising a plurality of distribution openings (18, 19) for the propulsion fluid which are orientated towards the reduced end.
    Type: Application
    Filed: February 17, 2020
    Publication date: August 20, 2020
    Inventors: Thierry KOHN, Benissa BOUJIDA, Benjamin LEMENAND, Alexis PEREIRA
  • Patent number: 10689992
    Abstract: The invention relates to part of a turbine engine comprising two arms passing through a stream of the turbine engine, wherein each arm comprises an outer surface and an aerodynamic linking device. The aerodynamic linking device comprises fairings extending between the two arms, compressible interface means interposed between the fairings and means for retaining the fairings in place by pressure in relation to the arms, which compress the interface means.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: June 23, 2020
    Assignee: Safran Aircraft Engines
    Inventors: Thierry Kohn, Damien Cesar, Julien Sayn-Urpar
  • Publication number: 20180355748
    Abstract: A dual-flow turbomachine generally includes a cooling and turbine clearance control system located in a primary air flow path of the turbomachine, supplied a scoop configured to take air from a secondary air flow path arranged around the primary air flow path through an air inlet of the scoop, where the scoop may further include one wall configured to be arranged in the extension of a wall of the secondary flow path, and further where the air inlet may be formed in and flush with the wall.
    Type: Application
    Filed: June 6, 2018
    Publication date: December 13, 2018
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Pascal Xavier Delaitre, Thierry Kohn, Bruna Manuela Ramos, Florian Benjamin Kévin Lacroix, Antonin Etienne Diego Tessiereau
  • Patent number: 9919805
    Abstract: An aeronautic engine including: a housing made of electrically insulating material and including at least one metallic piece; a structural piece of the engine including metallic material and connected to the housing; and an equipment fixed to the housing, is provided. The equipment is connected to the structural piece by the metallic piece by an electrically conductive connecting path.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: March 20, 2018
    Assignee: SNECMA
    Inventors: Julien Sayn-Urpar, Jeremy Edmond Fert, Thierry Kohn, Julien Pavillet
  • Publication number: 20170362946
    Abstract: The invention relates to part of a turbine engine comprising two arms passing through a stream of the turbine engine, wherein each arm comprises an outer surface and an aerodynamic linking device. The aerodynamic linking device comprises fairings extending between the two arms, compressible interface means interposed between the fairings and means for retaining the fairings in place by pressure in relation to the arms, which compress the interface means.
    Type: Application
    Filed: June 19, 2017
    Publication date: December 21, 2017
    Applicant: Safran Aircraft Engines
    Inventors: Thierry Kohn, Damien Cesar, Julien Sayn-Urpar
  • Publication number: 20170166331
    Abstract: Structure (310) for transporting and hoisting a turbomachine (312), said structure comprising a hoisting interface (328) arranged on a rigid hoisting arm (318) which extends over the turbomachine and is connected to a rigid transport arm (316) which extends over a lateral side of the turbomachine, this transport arm being connected to at least two engine mounts (340) solid with the turbomachine. The transport arm (316), or one of the engine mounts connected to this transport arm, comprises a transport interface (324) that can be supported by a bearing element (332) of a truck (326) used for transporting the turbomachine.
    Type: Application
    Filed: February 2, 2015
    Publication date: June 15, 2017
    Inventors: Thierry KOHN, Stephane BAUCHER, Damien CESAR, Alexandre DERVAUX, Franck DUBREUCQ, Thibaud MANGIN
  • Patent number: 9611047
    Abstract: An arrangement of a tank of lubrication liquid for an aircraft turbomachine, under a nacelle cowling covering the turbomachine, is provided. The tank is arranged in the volume located between the turbomachine and the nacelle cowling. The nacelle cowling includes an opening for access to the volume. The tank is fastened to an internal face of a panel closing off the opening. The unit formed by the panel and the tank is added onto the nacelle cowling and is able to be mounted and dismounted from the nacelle cowling.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: April 4, 2017
    Assignee: SNECMA
    Inventors: Thierry Kohn, Jeremy Edmond Fert