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1.发明申请公开(公告)号：US20180148381A1
公开(公告)日：2018-05-31
申请号：US15878443
申请日：2018-01-24
Applicant: Safran Nacelles
Inventor： Arnaud DELEHOUZE , Sylvain SENTIS , Bertrand DESJOYEAUX
IPC: C04B35/80 , C04B38/00 , F02C7/045 , G10K11/162 , C04B35/117
CPC classification number: C04B35/803 , C04B30/02 , C04B35/117 , C04B35/18 , C04B35/80 , C04B38/00 , C04B2111/52 , C04B2235/5224 , C04B2235/5228 , C04B2235/5252 , C04B2235/5256 , C04B2235/616 , F02C7/045 , F02C7/24 , F05D2300/6032 , F05D2300/6034 , G10K11/162 , Y02T50/672 , C04B38/0003
Abstract: The present disclosure concerns a porous body made of a ceramic-matrix composite material for an acoustic attenuation panel and a method of manufacturing the porous body. The porous body includes a plurality of interwoven ceramic fibers, a metal oxide matrix, and a plurality of channels interwoven with the ceramic fibers and interconnected together. The channels define at least one cavity. In one form, at least one channel is wrapped around a ceramic fiber. In another form, at least one ceramic fiber and at least one channel are twisted together. In yet another form, at least one channel is wrapped around a ceramic fiber and twisted with the ceramic fiber. The present disclosure also concerns an acoustic attenuation panel including the porous body and an aircraft propulsion unit having such a panel.
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公开(公告)号：US20170232693A1
公开(公告)日：2017-08-17
申请号：US15585426
申请日：2017-05-03
Applicant: SAFRAN NACELLES
Inventor： Arnaud DELEHOUZE , Sylvain SENTIS , Philippe PRUNIN , Aristide BOUDARD
CPC classification number: B29C73/10 , B29C37/0075 , B29C65/4825 , B29C65/5042 , B29C65/76 , B29C66/242 , B29C66/721 , B29C66/72525 , B29C70/443 , B29C70/74 , B29C73/32 , B29L2031/3076 , B32B3/12 , B32B3/266 , B32B37/146 , B32B2305/024 , B32B2605/18 , G10K11/172
Abstract: The present disclosure relates to a method of repairing a damaged portion of a perforated skin of a panel using a doubler made of composite material which is designed to be applied to the damaged portion of the perforated skin. The method includes at least one step in which a sealing film is applied to the damaged portion of the perforated skin in order to temporarily seal the perforations in the skin, and a step in which the doubler is produced over the previously deposited sealing film.
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3.发明申请公开(公告)号：US20170122204A1
公开(公告)日：2017-05-04
申请号：US15403658
申请日：2017-01-11
Applicant: SAFRAN NACELLES
Inventor： Marc VERSAEVEL , Arnaud DELEHOUZE , Laurence LEMAINS , Pierre-François BEHAGHEL
CPC classification number: F02C7/047 , B64D15/04 , B64D29/00 , B64D33/02 , B64D2033/0206 , B64D2033/0233 , F01D25/10 , F01D25/24 , F02C7/045 , F05D2220/323
Abstract: A front lip of a turbofan engine nacelle is provided, defined at the rear by a partition wall, the lip comprising an annular de-icing space including a tube for supplying hot air in order to de-ice the outer walls thereof, said lip also including acoustic panels arranged on the wall thereof substantially radially facing the axis of the nacelle. The front lip includes hot-air outlet bores/piercings which are arranged between the front end of the lip and said acoustic panels, which allow a flow of hot air, from said annular space, forming a substantially regular film which covers said acoustic panels with a boundary layer in order to heat said acoustic panels.
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Patent Agency Ranking
4.发明申请公开(公告)号：US20200300196A1
公开(公告)日：2020-09-24
申请号：US16800286
申请日：2020-02-25
Applicant: Safran Nacelles , Safran Ceramics
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.
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5.发明申请公开(公告)号：US20180257338A1
公开(公告)日：2018-09-13
申请号：US15974714
申请日：2018-05-09
Applicant: Safran Nacelles
Inventor： Arnaud DELEHOUZE , Etienne GERMAIN , Sébastien LOUCHARD , Benjamin PROVOST
CPC classification number: B32B7/08 , B29C64/165 , B29C65/564 , B29C70/543 , B29K2307/04 , B29L2031/003 , B29L2031/3076 , B32B1/00 , B32B7/02 , B32B7/04 , B32B27/06 , B32B27/12 , B32B2307/514 , B32B2307/54 , B32B2307/558 , B32B2605/00 , B32B2605/18 , Y10T428/24174 , Y10T428/249923
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.
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公开(公告)号：US20200010206A1
公开(公告)日：2020-01-09
申请号：US16549359
申请日：2019-08-23
Applicant: Safran Nacelles
Inventor： Bertrand DESJOYEAUX , Sylvain SENTIS , Arnaud DELEHOUZE , François TAILLARD
Abstract: An rear fairing for a pylon supporting an aircraft turbojet engine forms an aerodynamic surface covering the base of the pylon. The rear fairing is elongated in a longitudinal direction and includes a floor arranged opposite the hot gases exiting the turbojet engine and side walls constituting aerodynamic surfaces. The floor and the side walls include ceramic matrix composite materials made from preforms formed by layers of superimposed warp and weft yarns, the preforms have interlayer weaving yarns connecting the layers to one another.
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公开(公告)号：US20180166058A1
公开(公告)日：2018-06-14
申请号：US15878431
申请日：2018-01-24
Applicant: Safran Nacelles
Inventor： Arnaud DELEHOUZE , Sylvain SENTIS , Bertrand DESJOYEAUX
CPC classification number: G10K11/168 , B32B3/06 , B32B3/12 , B32B3/26 , B32B3/266 , B32B5/02 , B32B9/005 , B32B9/041 , B32B15/14 , B32B15/20 , B32B18/00 , B32B37/14 , B32B2250/40 , B32B2255/20 , B32B2260/021 , B32B2260/04 , B32B2262/10 , B32B2262/105 , B32B2307/102 , B32B2605/18 , B32B2607/00 , C04B35/638 , C04B35/71 , C04B35/803 , C04B37/005 , C04B38/06 , C04B2235/522 , C04B2235/616 , C04B2237/064 , C04B2237/34 , C04B2237/343 , C04B2237/38 , C04B2237/597 , C04B2237/62 , C04B2237/76 , C04B2237/80 , C25D11/246 , F02C7/045 , F02K1/827 , F05D2250/283 , F05D2300/6033 , G10K11/172 , Y02T50/672
Abstract: The present disclosure relates to a method for producing an acoustic attenuation panel having two outer skins made from a composite material with a ceramic matrix containing a fibrous reinforcement. The skins are assembled on each side of a central honeycomb core having walls forming acoustic cavities produced by at least partial electrochemical conversion of aluminum into aluminum oxide. The method includes inserting a fugitive filler material into the acoustic cavities, leaving an annular space free in each cavity, on each side against the skin, extending around the cavity, and a step of sintering the composite material, in which the fugitive material is removed and the spaces around the cavities are filled with the composite material.
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公开(公告)号：US20170241924A1
公开(公告)日：2017-08-24
申请号：US15589049
申请日：2017-05-08
Applicant: SAFRAN NACELLES
Inventor： Arnaud DELEHOUZE , Emmanuel PIEL , Nicolas PREUD'HOMME
CPC classification number: G01N25/02 , B64F5/60 , G01N25/4866
Abstract: The present disclosure relates to a method of characterizing the thermal ageing of a part made of composite material, in particular a composite material having an organic matrix. The method includes taking from the part a sample of composite material, subjecting the sample to modulated temperature differential calorimetry, determining, from the curve representing the total heat flow component associated with irreversible phenomena, the temperature at which a local extremum appears, this local extremum being characteristic of the thermal ageing, and determining the thermal ageing of the composite material by comparing the temperature at which the local extremum appears with a reference chart.
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