公开(公告)号：US12264394B1

公开(公告)日：2025-04-01

申请号：US18838765

申请日：2023-02-16

Applicant: SAFRAN LANDING SYSTEMS ,  SAFRAN CERAMICS

Inventor： Matthieu Champagne ,  Jeff Roustand ,  Franck Lamouroux ,  Sébastien Bertrand

IPC: C23C16/455 ,  C23C16/04 ,  C23C16/44 ,  C23C16/458

Abstract: A method for densifying porous annular substrates having a central passage by chemical vapor infiltration, the method including providing stacks of porous annular substrates, providing a plurality of individual modules including stacks disposed on a support plate having a perforated injection tube each mounted on a gas inlet opening, forming a stack of individual modules, aligning the individual modules of the stack in a sealed manner by means of an annular seal disposed between the injection tube of a second individual module and the gas inlet opening of a first individual module with which it cooperates, and injecting into the internal volume of each stack of porous annular substrates a gas phase including a gaseous precursor of a matrix material to be deposited within the porosities of the substrates.

公开(公告)号：US12172339B2

公开(公告)日：2024-12-24

申请号：US17414765

申请日：2019-12-19

Applicant: SAFRAN CERAMICS

Inventor： Eric Philippe ,  Medhy Damien Bounia ,  Aurélia Clerambourg

IPC: B28B1/24 ,  B28B1/52 ,  B28B7/00 ,  B28B7/40

Abstract: A tool for manufacturing a ceramic matrix composite part by injecting a slurry, the tool includes an injection chamber intended to receive at least one fibrous preform to be densified, wherein the injection chamber includes first injection ports which are formed in a first side of the injection chamber for injecting the slurry into the injection chamber, the first injection ports being distributed along the first side of the injection chamber; the injection chamber includes first drainage ports which are formed on the first side of the injection chamber for draining a liquid phase of the slurry from the injection chamber, the first drainage ports being distributed along the first side of the injection chamber; and the tool includes a first filtration element which is located on the first side of the injection chamber and which is located opposite the first drainage ports.

公开(公告)号：US12090741B2

公开(公告)日：2024-09-17

申请号：US16800286

申请日：2020-02-25

Applicant: Safran Nacelles ,  Safran Ceramics

Inventor： Bertrand Desjoyeaux ,  Davi Silva De Vasconcellos ,  Florent Bouillon ,  Arnaud Delehouze

IPC: B32B5/02 ,  B32B3/12 ,  F02K1/82

CPC classification number: B32B5/024 ,  B32B3/12 ,  F02K1/827 ,  B32B2250/03 ,  B32B2262/105 ,  B32B2307/102 ,  B32B2605/18

Abstract: A panel for a nacelle of an aircraft propulsion assembly includes two skins and a cell structure provided with transverse partitions defining cells. The cell structure includes folds with at least one central part forming at least one part of at least one transverse partition and at least one peripheral part extending along at least one of the skins. A nacelle with such a panel is provided, as well as a method for manufacturing such a panel.

公开(公告)号：US20240263560A1

公开(公告)日：2024-08-08

申请号：US18699150

申请日：2022-09-30

Applicant: SAFRAN AIRCRAFT ENGINES ,  SAFRAN CERAMICS

Inventor： Patrick Joseph Marie GIRARD ,  Didier René André ESCURE ,  Matthieu Arnaud GIMAT ,  Sébastien Serge Francis CONGRATEL ,  Arthur DE CASTRO

IPC: F01D5/30 ,  F01D5/14 ,  F01D9/04

CPC classification number: F01D5/3084 ,  F01D5/141 ,  F01D9/041 ,  F05D2300/6033

Abstract: Blade of a turbomachine turbine including a airfoil extending along a first direction between an internal end and an external end, a base secured to said internal end, and a root secured to said external end and extending, along a second direction perpendicular to said first direction, between an upstream edge, and a downstream edge and, along a third direction orthogonal to the first and second directions, between first and second lateral edges, the first side edge having, in a plane including the second and third directions, a shape complementary to that of the second lateral edge. The first lateral edge includes a first portion extending from the upstream edge, and a second portion externally protruding along the third direction at an acute angle with the first portion.

公开(公告)号：US20240133306A1

公开(公告)日：2024-04-25

申请号：US18546169

申请日：2022-02-08

Applicant: SAFRAN AIRCRAFT ENGINES ,  SAFRAN CERAMICS

Inventor： Sébastien Serge Francis CONGRATEL ,  Aurélien GAILLARD ,  Matthieu Arnaud GIMAT ,  Clément JARROSSAY ,  David René Pierre LE CAIR

IPC: F01D9/04

CPC classification number: F01D9/042 ,  F01D9/041 ,  F05D2250/71 ,  F05D2260/38 ,  F05D2300/6033

Abstract: A turbine engine nozzle extending about an axis and including a vane assembly mounted between an outer shroud and an inner shroud; and a position retaining device configured to be placed in an elastically prestressed state between the inner shroud and an inner platform of the vane assembly to apply a stress on the vane assembly towards the outer shroud. The contact between the inner shroud and the inner platform is obtained by one same surface of the position retaining device.

公开(公告)号：US20240052863A1

公开(公告)日：2024-02-15

申请号：US18266749

申请日：2021-11-11

Applicant: SAFRAN CERAMICS

Inventor： Gaël BOUCHY ,  Thomas REVEL ,  Christophe Paul AUPETIT ,  Thierry Guy Xavier TESSON

IPC: F16B5/02 ,  F16B5/06 ,  F16B35/06

CPC classification number: F16B5/02 ,  F16B5/06 ,  F16B35/06

Abstract: An assembly for a turbine engine includes at least a first part and a second part, and at least one bolt including a screw engaging with a nut. The screw extends through respective openings in the first part and in the second part. A bearing element of the bolt has an annular flange mounted between the screw or the nut and the first part. The flange has a bearing surface bearing that is tapered and forms an angle (α) with an additional bearing surface of the first part such that only an outer peripheral area of the flange bearing surface comes into contact with the additional bearing surface of the first part, in a non-tightened state of the bolt, the flange deformable such that when the nut is tightened on the screw, a larger area of the flange bearing surface bears on the additional bearing surface of the first part.

公开(公告)号：US20240051884A1

公开(公告)日：2024-02-15

申请号：US18483796

申请日：2023-10-10

Applicant: SAFRAN CERAMICS

Inventor： Simon ARNAL ,  Lisa PIN

IPC: C04B41/50 ,  C04B41/00 ,  C04B41/45 ,  C04B41/52 ,  C04B41/87 ,  C04B41/89 ,  C23C24/10

CPC classification number: C04B41/5024 ,  C04B41/0072 ,  C04B41/009 ,  C04B41/4545 ,  C04B41/522 ,  C04B41/87 ,  C04B41/89 ,  C23C24/10

Abstract: A method for coating a ceramic matrix composite part with an environmental barrier, includes a) applying, to the surface of the part, a coating composition including a first powder of a rare earth silicate and a second powder including boron, the coating composition having a ratio R=[mass of the second powder]/[mass of the first powder] of between 0.1% and 5%, wherein the second powder includes a boron powder, and b) sintering the first and second powders in order to obtain the environmental barrier on the part.

公开(公告)号：US20240018057A1

公开(公告)日：2024-01-18

申请号：US18254297

申请日：2021-11-10

Applicant: SAFRAN CERAMICS ,  IRT ANTOINE DE SAINT EXUPERY ,  UNIVERSITE DE LIMOGES ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： Marc SINGLARD ,  Gautier MECUSON ,  Anne AIMABLE ,  Cécile PAGNOUX ,  Aude PAILLASSA

IPC: C04B35/80 ,  C04B41/00

CPC classification number: C04B35/80 ,  C04B41/0072 ,  C04B2235/5256 ,  C04B2235/48

Abstract: A method for producing a ceramic matrix composite part, includes forming a fiber preform from a plurality of fibrous structures including core-shell particles, the core-shell particles including a core portion formed by a core of ceramic material and a shell formed by an adhesive layer, the adhesive defining an outer surface of the core-shell particles and completely coating the core of ceramic material, and sintering the core-shell particles in the fiber preform obtained in order to form the ceramic matrix in the porosity thereof.

公开(公告)号：US20240018054A1

公开(公告)日：2024-01-18

申请号：US18255030

申请日：2021-11-22

Applicant: SAFRAN CERAMICS ,  IRT ANTOINE DE SAINT EXUPERY

Inventor： William ROS ,  Simon Lucien René THIBAUD ,  Maxime BOX ,  Christophe HIRONDELLE

IPC: C04B35/573 ,  C04B35/80

CPC classification number: C04B35/573 ,  C04B35/80 ,  C04B2235/5244 ,  C04B2235/5252 ,  C04B2235/6565

Abstract: Method for manufacturing a part made from CMC for improving control of the step of densifying the part, and intermediate part for implementing said method, the intermediate part comprising a reinforcement, a matrix comprising a ceramic material, and at least one insert, which is made from a material different from that of the reinforcement and the matrix and which is designed to promote migration of liquid silicon within the intermediate part during a step of densifying the intermediate part.

公开(公告)号：US20230407816A1

公开(公告)日：2023-12-21

申请号：US18250964

申请日：2021-10-29

Applicant: SAFRAN CERAMICS

Inventor： Eric CONETE ,  Benoit CARRERE ,  Thomas VANDELLOS

IPC: F02K1/80

CPC classification number: F02K1/80

Abstract: A turbomachine turbine assembly having a longitudinal axis and including an exhaust casing, an ejection cone arranged downstream of the exhaust casing, the ejection cone having an outer annular wall for the flow of a primary air stream and an acoustic box arranged radially inside said outer annular wall. The acoustic box can include a radially inner annular wall and a connection member interposed longitudinally between the exhaust casing and the inner annular wall of the ejection cone. The connection member can be fastened to the exhaust casing and to the inner annular wall. The upstream end of the outer annular wall can be connected to the connection member with a degree of freedom in the radial direction and a degree of freedom in the longitudinal direction.