公开(公告)号：US20240367329A1

公开(公告)日：2024-11-07

申请号：US18287169

申请日：2022-05-10

Applicant: SAFRAN NACELLES

Inventor： Renaud Venture ,  Benjamin Provost ,  Clément Rolland ,  Maxime Lebegue

IPC: B25J15/06

Abstract: A gripping head can be used for applying a patch to a surface to be draped. The gripping head for gripping a patch and applying the patch to a surface to be draped includes a suction chamber delimiting a suction sector and connected to a suction intake and a gripper connected to said suction chamber and comprising a piece of elastically deformable material configured to grip a patch under a gripping effect created in said suction chamber. The gripper includes selectively activatable gripping zones and the gripping head includes means for selectively activating the gripping zones.

公开(公告)号：US11472133B2

公开(公告)日：2022-10-18

申请号：US16785979

申请日：2020-02-10

Applicant: Safran Nacelles

Inventor： Bertrand Desjoyeaux ,  Davi Silva De Vasconcellos ,  Benjamin Provost

IPC: B29C33/68 ,  B29C70/32 ,  B29C70/22 ,  C04B35/628 ,  C04B35/64 ,  C04B35/80 ,  C08J5/24 ,  B29L23/00 ,  F02K1/44

Abstract: A method for manufacturing a fibrous tubular structure including lobes, in which fibers are draped/deposited on a mandrel having a shape corresponding to that of the fibrous structure, includes draping/deposition carried out such that at least one group of fibers has a same orientation with respect to the axis (A) of said fibrous structure, then, the fibers having been draped over an angular sector less than the total periphery of the mandrel, one of the ends of the fibrous structure is separated from the mandrel in order to allow the continuation of the draping on the same mandrel.

公开(公告)号：US10913181B2

公开(公告)日：2021-02-09

申请号：US16793523

申请日：2020-02-18

Applicant: SAFRAN NACELLES

Inventor： Benjamin Provost ,  Bertrand Desjoyeaux ,  Sébastien Louchard ,  Fabien Depeux

IPC: B32B1/08 ,  B29B11/16 ,  B64D29/00 ,  B32B5/12 ,  B29C70/30 ,  B64F5/10 ,  B64C7/02 ,  B29K105/08 ,  B29L31/30 ,  F02C7/04

Abstract: A method for manufacturing a preform has a non-developable end shape having, about a longitudinal axis (A), an end overall radius of curvature (R2), and, in at least a longitudinal section, curved segments forming bending radii linking straight segments. The method includes a step of depositing successive layers giving the preform an initial substantially rotational shape having, about the longitudinal axis (A), an initial overall radius of curvature, then a step of deploying the preform by increasing the initial overall radius of curvature until the end overall radius of curvature is reached (R2), in order to close the bending radii of the curved segments.

公开(公告)号：US10767288B2

公开(公告)日：2020-09-08

申请号：US15454022

申请日：2017-03-09

Applicant: SAFRAN NACELLES

Inventor： Benjamin Provost ,  Julien Lorrillard ,  Bertrand Desjoyeaux ,  Michel Rognant

IPC: D03D25/00 ,  B29C70/24 ,  D03J1/00 ,  F01D9/00 ,  F01D9/04 ,  B29B11/16 ,  F01D25/26 ,  F01D25/24 ,  F01D5/28 ,  B29K307/04

Abstract: The present disclosure concerns a preform for a curved composite stiffener for an axisymmetric part such as a shroud, including at least one web and at least one flange curved about an axis of revolution of the preform and defining a substantially “T” or an “I” shaped section. In one form, the preform includes a web and a flange, wherein the web includes a plurality of warp yarns circumferentially oriented relative to the axis of revolution of the preform, and a plurality of weft yarns oriented radially relative to said axis, and the flange includes a plurality of warp yarns circumferentially oriented relative to the axis of revolution of the preform, and a plurality of weft yarns substantially parallel to said axis.

公开(公告)号：US10479049B2

公开(公告)日：2019-11-19

申请号：US15974714

申请日：2018-05-09

Applicant: Safran Nacelles

Inventor： Arnaud Delehouze ,  Etienne Germain ,  Sébastien Louchard ,  Benjamin Provost

IPC: B32B7/04 ,  B32B7/08 ,  B29C70/54 ,  B32B7/02 ,  B32B27/06 ,  B29C64/165 ,  B32B1/00 ,  B32B27/12 ,  B29C65/56 ,  B29K307/04 ,  B29L31/00 ,  B29L31/30

Abstract: The present disclosure relates to a part made from composite material that includes a base and a T-shaped reinforcement. The T-shaped reinforcement includes a first L-shaped element having a first right-angled connection portion and a second L-shaped element having a second right-angled connection portion. The part further includes a plurality of needles, each connecting the base to the T-shaped reinforcement of the part, close to the connection portions and extending in multiple directions so as to oppose, in particular, the separation of the base from the T-shaped reinforcement.

公开(公告)号：US12179918B2

公开(公告)日：2024-12-31

申请号：US17188482

申请日：2021-03-01

Applicant: Safran Nacelles

Inventor： Bertrand Leon Marie Desjoyeaux ,  Julien Lorrillard ,  Benjamin Provost

IPC: B64C7/02 ,  B29B11/16 ,  B29C70/22 ,  B32B5/06 ,  B32B5/26 ,  D04H3/10 ,  D04H3/115 ,  D06C3/00

Abstract: A method for manufacturing a preform for producing a part made of composite material with an unchangeable final shape includes supplying a triaxial non-woven textile comprising a layer of fibers orientated in a first direction, a layer of fibers orientated in a second direction, a layer of fibers orientated in a third direction, and seams extending parallel to each other and forming sheaths for the circumferential fibers, arranging the textile on an element of unchangeable shape by placing the seams parallel to the circumferential direction of the element, and sliding the circumferential fibers into the sheaths so that the textile is in continuous contact with the element.

公开(公告)号：US20240253238A1

公开(公告)日：2024-08-01

申请号：US18692148

申请日：2022-09-16

Applicant: SAFRAN NACELLES

Inventor： Benjamin Provost ,  Clément Rolland ,  Maxime Lebegue ,  Renaud Venture

IPC: B25J9/16 ,  B25J11/00

CPC classification number: B25J9/1697 ,  B25J9/1653 ,  B25J9/1674 ,  B25J11/005

Abstract: A method for controlling the application of a patch can include the following steps:



positioning a patch on a surface to be covered by means of a gripper and with or without partial overlapping with adjacent patches;
acquiring by means of an optical control means at least one image of the positioned patch;
detecting defects in the positioning of the patch by identifying differences in the thickness of the patch on the surface to be covered based on the at least one image of the positioned patch; and
mapping the defects in the positioning of the patch.

公开(公告)号：US20240198611A1

公开(公告)日：2024-06-20

申请号：US18287130

申请日：2022-05-06

Applicant: SAFRAN NACELLES

Inventor： Benjamin Provost ,  Clément Rolland ,  Maxime Lebegue ,  Renaud Venture

IPC: B29C73/12 ,  B25J15/00 ,  B25J15/06

CPC classification number: B29C73/12 ,  B25J15/0085 ,  B25J15/0616

Abstract: This automaton for applying a patch to a draping surface (15) comprises a gripper (24) capable of grasping the patch and depositing it on the draping surface (15), and a heating system (25) for directly heating the draping surface (15).

公开(公告)号：US11473225B2

公开(公告)日：2022-10-18

申请号：US16212738

申请日：2018-12-07

Applicant: Safran Nacelles

Inventor： Julien Lorrillard ,  Bertrand Desjoyeaux ,  Michel Rognant ,  Benjamin Provost

IPC: D03D25/00 ,  D03D1/00 ,  D03D11/02 ,  D03D13/00 ,  D03D49/20 ,  B29B11/16 ,  D03D41/00 ,  D03J1/08 ,  D03D49/02 ,  B29C70/22 ,  B29B15/12 ,  B29C44/12 ,  B29C70/08

Abstract: A method of manufacturing a preform including a core and a sole includes contour weaving the preform on a lap roller having a groove or an outgrowth allowing shape weaving of the core and the sole of the preform. At least one portion of the core and at least one portion of the sole include weft yarns which cross each other on common warp yarns.

公开(公告)号：US11235492B2

公开(公告)日：2022-02-01

申请号：US16693551

申请日：2019-11-25

Applicant: Safran Nacelles

Inventor： Bertrand Desjoyeaux ,  Benjamin Provost ,  Fabien Depeux ,  Davi Silva De Vasconcellos

IPC: D03D1/00 ,  D03D3/02 ,  D03D3/08 ,  D03D13/00 ,  B32B1/08 ,  B32B5/02 ,  F02K1/48 ,  B29B11/16 ,  B29C70/22 ,  B29L31/00

Abstract: A tubular structure having lobes is produced as a single piece over at least two lobes. Circumferential fibres of the structure have a constant orientation with respect to the longitudinal axis (A) of the structure in any plane (P) transverse to the longitudinal axis. The structure is obtained by weaving or by filament winding.