公开(公告)号：US20240416597A1

公开(公告)日：2024-12-19

申请号：US18727273

申请日：2022-12-30

Applicant: SAFRAN ,  SAFRAN NACELLES

Inventor： Patrick DUNLEAVY ,  Bertrand Léon Marie DESJOYEAUX

IPC: B29C70/38 ,  B29C70/24 ,  B29C70/54 ,  B29L31/08

Abstract: Application head for automated fiber placement, which application head includes at least: an application roller that is designed to apply fibers to a shaping tool which application roller is rotatably movable on its axis for applying fibers to the shaping tool, and a feed device includes a winding of a strip of fibers having a predefined orientation, the strip of fibers being configured to be transferred by unwinding from the feed device onto the application roller with at least one portion of the fibers of the strip being oriented such that they are not perpendicular to the axis of the roller.

公开(公告)号：US20170254212A1

公开(公告)日：2017-09-07

申请号：US15506343

申请日：2015-08-20

Applicant: SAFRAN AIRCRAFT ENGINES ,  SAFRAN

Inventor： Sébastien PAUTARD ,  Maxime BRIEND ,  Emilie TROUSSET ,  Patrick DUNLEAVY

IPC: F01D9/02 ,  B29C45/40 ,  B29C45/00

CPC classification number: F01D9/02 ,  B29C45/0005 ,  B29C45/40 ,  B29C70/46 ,  B29C70/78 ,  B29D99/0025 ,  B29L2031/08 ,  F01D5/282 ,  F01D5/286 ,  F05D2220/32 ,  F05D2230/20 ,  F05D2300/603 ,  Y02T50/672 ,  Y02T50/673

Abstract: A guide vane for a gas turbine engine, the guide vane including an airfoil made of composite material having fiber reinforcement densified by a matrix, the fiber reinforcement being obtained from pre-impregnated long fibers agglomerated in the form of a mat, the airfoil being provided at least on a leading edge with a reinforcing strip, the reinforcing strip being made from a single strip of unidirectional fabric or of textile, or by stacking a plurality of pre-impregnated plies of unidirectional fabric or of textile made of carbon fibers or of glass fibers, and at least one platform positioned at a radial end of the airfoil, the platform being made of composite material having fiber reinforcement densified by a matrix, the fiber reinforcement being obtained from pre-impregnated long fibers.

公开(公告)号：US20250001653A1

公开(公告)日：2025-01-02

申请号：US18711409

申请日：2022-11-16

Applicant: SAFRAN

Inventor： Hugues Laurent ALGLAVE ,  Nicolas Pierre LANFANT ,  Patrick DUNLEAVY

IPC: B29C43/02 ,  B29C43/36 ,  B29C43/52 ,  B29K71/00 ,  B29K79/00

Abstract: A method for producing a component including a plurality of hollow complex elements, includes: filling a plurality of molding cavities with a thermoplastic material, the mold being maintained at a first temperature, applying a hold pressure to the thermoplastic material while the mold is cooled to a second temperature, and interrupting the hold pressure on the thermoplastic material while the mold is cooled to a third temperature.

公开(公告)号：US20250144868A1

公开(公告)日：2025-05-08

申请号：US18681344

申请日：2022-08-03

Applicant: SAFRAN

Inventor： Pierre Nicolas LANFANT ,  Hugues Laurent ALGLAVE ,  Patrick DUNLEAVY

IPC: B29C51/00 ,  B29C51/26 ,  B29C51/42 ,  B29L22/00

Abstract: A method for making an acoustic component includes a plurality of hollow complex acoustic elements, the method including heating a film of thermoplastic material to a first temperature above the glass transition temperature of the film; shaping the heated film of thermoplastic material in a tool including a mould which has a plurality of mould cavities having a shape corresponding to the shape of the complex acoustic elements of the acoustic component to be made, the heated film of thermoplastic material being shaped locally in each of the mould cavities, at least the mould being kept at a second temperature above the glass transition temperature of the thermoplastic material; cooling the mould; and removing a complex acoustic multi-element panel including a plurality of hollow complex acoustic elements from the mould.

公开(公告)号：US20230364868A1

公开(公告)日：2023-11-16

申请号：US18245199

申请日：2021-09-09

Applicant: SAFRAN

Inventor： Nicolas Pierre LANFANT ,  Patrick DUNLEAVY

IPC: B29C70/70 ,  B29C70/22 ,  B29C70/46 ,  F02K1/54

CPC classification number: B29C70/70 ,  B29C70/222 ,  B29C70/462 ,  F02K1/54 ,  B29L2031/7504

Abstract: A method for manufacturing a composite material part having a cellular structure that includes at least one cell delimited by walls. The method includes supplying at least a first core, providing a web of a first fibrous reinforcement comprising a plurality of long discontinuous fibers randomly distributed in a plane, and producing at least one strip of the first fibrous reinforcement. The method further includes producing a second fibrous reinforcement in the shape of a sock, inserting the first core into the sock, draping the strip around the sock containing the first core, placing the sock containing the first core and the wrapped strip in a mold, and thermocompression.

公开(公告)号：US20240042671A1

公开(公告)日：2024-02-08

申请号：US18259189

申请日：2022-01-13

Applicant: SAFRAN

Inventor： Nicolas Pierre LANFANT ,  Hugues Laurent ALGLAVE ,  Patrick DUNLEAVY

IPC: B29C51/22 ,  B29C35/08 ,  B29C33/72 ,  B29C51/04 ,  B29C51/26 ,  B29C51/44 ,  B29C51/42 ,  B32B3/28 ,  B32B27/08 ,  G10K11/168

CPC classification number: B29C51/22 ,  B29C35/0805 ,  B29C33/72 ,  B29C51/04 ,  B29C51/261 ,  B29C51/44 ,  B29C51/426 ,  B29C51/428 ,  B32B3/28 ,  B32B27/08 ,  G10K11/168 ,  B29C2035/0822 ,  B29L2031/60

Abstract: A method for continuously manufacturing a complex acoustic multi-element panel for an acoustic attenuation structure, the method including supplying a thermoplastic resin film at the entry of a stamping system including at least one pair of complementary cylinders, a heating of the thermoplastic resin film upstream of the entry of the stamping system, and a passage of the thermoplastic resin film between the at least one pair of complementary cylinders, the pair of complementary cylinders including a male cylinder with teeth radially protruding from the cylinder and a female cylinder with cavities on its radial surface, the cavities of the female cylinder being of shapes complementary to the shapes of the teeth of the male cylinder and a separation of the stamped film at the exit of the stamping system using a separator disposed at the exit of the stamping system between the stamped film and the female cylinder.

公开(公告)号：US20230131268A1

公开(公告)日：2023-04-27

申请号：US17915852

申请日：2021-03-30

Applicant: SAFRAN

Inventor： Hugues Laurent ALGLAVE ,  Patrick DUNLEAVY ,  Nicolas Pierre LANFANT ,  Cédric Pierre Michel THOMAS

IPC: B29C45/56 ,  G10K11/162

Abstract: A method for manufacturing an acoustic attenuation structure including a complex acoustic multi-element panel extending along a horizontal and a vertical direction and an acoustic skin covering one of horizontal faces of the complex acoustic multi-element panel, the complex acoustic multi-element panel including complex acoustic elements each having a shape gradually narrowing between a base and a tip and partitions surrounding each complex acoustic element to form a plurality of acoustic cells, the partitions extending along the vertical direction from the base of the complex acoustic elements, the complex acoustic multi-element panel being produced by injection of a filled or unfilled thermoplastic or thermosetting material. The complex acoustic multi-element panel and the plurality of partitions are produced as a single part by injection of a filled or unfilled thermoplastic or thermosetting material.

公开(公告)号：US20170247115A1

公开(公告)日：2017-08-31

申请号：US15315654

申请日：2015-07-02

Applicant: SAFRAN

Inventor： Robin MANDEL ,  Patrick DUNLEAVY ,  Emilie TROUSSET

IPC: B64D29/06 ,  B29C65/56 ,  B64F5/10 ,  B29C43/02 ,  B29C43/52 ,  B29C65/02 ,  B29C65/00

CPC classification number: B64D29/06 ,  B29C43/02 ,  B29C43/52 ,  B29C65/02 ,  B29C65/562 ,  B29C66/1122 ,  B29C66/474 ,  B29C66/524 ,  B29C66/532 ,  B29C66/61 ,  B29C66/71 ,  B29C66/712 ,  B29C66/72141 ,  B29C66/72143 ,  B29C66/73753 ,  B29C66/73941 ,  B29C70/08 ,  B29C70/44 ,  B29C70/48 ,  B29C70/84 ,  B29K2105/12 ,  B29L2031/30 ,  B29L2031/3076 ,  B64F5/10 ,  B29K2063/00 ,  B29K2049/00 ,  B29K2079/08

Abstract: A method for manufacturing of a part made of composite material including pre-compacting to a predetermined shape of a mixture of a first thermosetting resin with discontinuous long fibers so as to form a first preform, pre-curing the first preform until an intermediate conversion stage corresponding to a solidification of said first resin, contacting the first preform with a second preform including a fiber structure of continuous fibers impregnated with a second thermosetting resin, polymerizing the first and second preforms so as to form a part made of composite material including a body made of composite material including reinforcement made of continuous fibers consolidated by an organic matrix provided with a portion made of composite material including reinforcement made of discontinuous long fibers consolidated by an organic matrix.

公开(公告)号：US20150377282A1

公开(公告)日：2015-12-31

申请号：US14764871

申请日：2014-02-03

Applicant: SAFRAN

Inventor： Cedric THOMAS ,  Patrick DUNLEAVY ,  Wouter BALK

IPC: F16C3/02 ,  B29C70/52 ,  B29C53/56 ,  B29C70/16

CPC classification number: F16C3/026 ,  B29C53/56 ,  B29C53/58 ,  B29C70/16 ,  B29C70/222 ,  B29C70/52 ,  B29C70/521 ,  B29K2063/00 ,  B29K2105/0809 ,  B29L2031/75

Abstract: A method for producing by pultrusion a hollow main body of a rotary movement transmission shaft made of a composite material, the method including: impregnating a reinforcement; arranging a reinforcing fabric around a pultrusion chuck to wrap the pultrusion chuck, the fabric including circumferential fibers arranged in planes orthogonal to a longitudinal axis of the chuck; and then depositing the impregnated reinforcement around the reinforcing fabric.

Abstract translation: 一种通过拉挤生产由复合材料制成的旋转运动传动轴的中空主体的方法，所述方法包括：浸渍加强件; 在拉挤拉杆周围布置增强织物以包裹拉挤成型卡盘，所述织物包括布置在与卡盘的纵向轴线正交的平面中的周向纤维; 然后将浸渍的增强物沉积在增强织物周围。

公开(公告)号：US20150354103A1

公开(公告)日：2015-12-10

申请号：US14761792

申请日：2014-01-09

Applicant: SAFRAN ,  AIRCELLE

Inventor： Patrick DUNLEAVY ,  Bertrand DESJOYEAUX

IPC: D03D3/02 ,  B60B11/06 ,  B29B11/16 ,  D03D25/00

CPC classification number: B29B11/16 ,  B60B11/06 ,  B60B2310/241 ,  B60B2360/3444 ,  B60Y2200/51 ,  D03D3/02 ,  D03D25/005 ,  D10B2101/06 ,  D10B2101/08 ,  D10B2505/02 ,  Y10T428/1314 ,  Y10T428/1362

Abstract: A single-piece woven fiber structure for fabricating an axisymmetric part of varying diameter made out of composite material, the fiber structure having a portion of frustoconical shape with a large diameter and a small diameter, the ratio between the large diameter and the small diameter being not less than 2. The fiber structure is formed by winding layers of warp and weft yarns that are woven on a mandrel having a profile that is defined as a function of the profile of the part to be fabricated with warp yarn take-up. For each layer of yarns, the weft yarns are angularly distributed on a single diameter in a zone of the large diameter of the portion of frustoconical shape and on at least two different diameters in a zone of the small diameter of the portion of frustoconical shape in order to form at least two superposed plies of weft yarns.

Abstract translation: 一种用于制造由复合材料制成的不同直径的轴对称部分的单件编织纤维结构，所述纤维结构具有具有大直径和小直径的截头圆锥形形状的一部分，大直径和小直径之间的比率 不小于2.纤维结构通过卷绕经纱和纬纱的层而形成，该纬纱和纬纱在具有轮廓的心轴上编织，该轮廓被定义为待经纱卷绕的待制造部件的轮廓的函数。 对于每层纱线，纬纱在截头圆锥形部分的大直径区域中的单个直径上成角度分布，并且在截头圆锥形状部分的小直径区域中的至少两个不同直径上 以形成至少两个重叠的纬纱层。