WO2009109713A2 - Système de guidage pour la maintenance d'une nacelle d'aéronef - Google Patents
Système de guidage pour la maintenance d'une nacelle d'aéronef Download PDFInfo
- Publication number
- WO2009109713A2 WO2009109713A2 PCT/FR2009/000062 FR2009000062W WO2009109713A2 WO 2009109713 A2 WO2009109713 A2 WO 2009109713A2 FR 2009000062 W FR2009000062 W FR 2009000062W WO 2009109713 A2 WO2009109713 A2 WO 2009109713A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- downstream
- internal structure
- nacelle
- turbojet engine
- turbojet
- Prior art date
Links
- 238000012423 maintenance Methods 0.000 title claims abstract description 21
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 45
- 239000000725 suspension Substances 0.000 claims abstract description 25
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000005465 channeling Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D29/00—Power-plant nacelles, fairings, or cowlings
- B64D29/08—Inspection panels for power plants
Definitions
- the invention relates in particular to a turbojet engine nacelle for an aircraft.
- An aircraft is driven by several turbojets each housed in a nacelle also housing a set of ancillary actuators related to its operation and providing various functions when the turbojet engine is in operation or stopped.
- These ancillary actuating devices comprise in particular a mechanical thrust reverser actuation system.
- a nacelle generally has a tubular structure comprising an air inlet upstream of the turbojet engine, a median section intended to surround a fan of the turbojet engine, a downstream section housing a thrust reverser means and intended to surround the combustion chamber of the turbojet engine. .
- the tubular structure is generally terminated by an ejection nozzle whose outlet is located downstream of the turbojet engine.
- downstream is understood here to mean the direction corresponding to the direction of the flow of cold air entering the turbojet engine.
- upstream refers to the opposite direction.
- the modern nacelles are intended to house a turbofan engine capable of generating through the blades of the rotating fan a hot air flow (also called “primary flow”) from the combustion chamber of the turbojet, and a cold air flow (“secondary flow”) flowing outside the turbojet through an annular passage also called vein.
- a turbojet engine usually comprises a so-called “upstream” portion comprising the blades of the fan and a so-called “downstream” part housing the gas generator.
- a nacelle for such a motor generally has an outer structure, called Outer Fixed Structure (OFS) and a concentric internal structure, called Inner Fixed Structure (IFS), surrounding the structure of the engine itself downstream of the fan.
- the internal and external structures define a vein for channeling the flow of cold air flowing to the outside of the engine.
- the primary and secondary flows are ejected from the engine by the rear of the nacelle.
- Each propulsion unit of the aircraft is thus formed by a nacelle and a motor which are suspended from a fixed structure of the aircraft, for example under a wing or on the fuselage, by means of a pylon or suspension mast attached to the engine or the nacelle.
- It is currently known to make a turbojet engine maintenance by accessing localized areas of the engine through doors located on I 1 IFS which allow only access to a restricted area and difficult access to tools bulky maintenance.
- NFS may comprise two upstream and downstream lateral sections, the downstream lateral section being movable in translation relative to the engine. This embodiment only allows access to the engine parts located at the downstream end thereof.
- I 1 IFS comprises a slide system by translating IFS I 1 along the axis of the engine.
- the nacelle 1 surrounds the engine of the turbojet engine 5 via a downstream structure comprising an external structure 6 (OFS) and a Internal Structure 9 (IFS) (see Figures 1 and 2).
- the nacelle 1 is, moreover, attached to a suspension mast 10.
- the internal structure 9 of the nacelle is usually formed of two elements 9a and 9b of substantially semicylindrical shape, on either side of a longitudinal vertical plane of symmetry 11 of the nacelle 1.
- the two elements 9a and 9b are movably mounted so as to be able to be deployed between a working position and a maintenance position in order to give access to the engine for maintenance operations.
- the two elements 9a and 9b are pivotally mounted about a longitudinal hinge axis in the upper part 13 (at the so-called 12 o'clock position) of the inverter.
- the two elements 9a and 9b are held in the closed position by means of locks arranged along a connecting line 15 located in the lower part (at the so-called 6 o'clock position).
- the external structures 6 and internal 9 are linked and kept open by a system of jacks and rods (not shown).
- this embodiment involves pivoting the elements at the downstream end of the nacelle, which requires the addition of additional devices and a structure adapted to allow this movement.
- the structure thus obtained is complex and cumbersome because the efforts go to specific places such as hinges and latches.
- An object of the present invention is to provide a turbojet engine nacelle allowing access to the engine as a whole by simplifying maintenance operations.
- the subject of the invention is a nacelle for a turbojet engine of an aircraft, comprising a downstream structure comprising:
- an external structure a concentric internal structure intended to surround a downstream part of the turbojet engine and comprising an upstream section of relatively small diameter and a downstream section of relatively large diameter, said internal structure defining with the external structure an annular flow channel; and a guiding system for connecting the internal structure and the downstream part of the turbojet engine or a part of a suspension pylon, characterized in that the guidance system comprises means for combining a translation and rotation movement of the engine.
- the nacelle of the present invention comprises guide means for moving the internal structure along the profile of the upstream section of relatively small diameter and the downstream section of relatively large diameter while maintaining the fixed external structure.
- the internal structure moves downstream first deviating from the engine and then translating so as to follow the profile of the downstream part of the turbojet engine.
- the nacelle of the invention advantageously allows to ensure a displacement of the internal structure without risk of hitting or damaging the elements of the downstream section of the outer structure of the nacelle.
- the internal structure is retracted downstream leaving substantially discover the downstream portion and therefore the turbojet engine.
- Direct access to the turbojet engine from the outside of the nacelle is, for example, achieved by opening a door or a grid of thrust reversers. Therefore, the invention allows easy access to people and tools to a substantially larger part of the engine than that of the prior art.
- the downstream structure of the nacelle of the invention does not comprise an external structure secured to the internal structure by means of a beam-like structure as well as hinges ensuring the opening of the internal and external structures, as this is the case in the prior art.
- an external structure secured to the internal structure by means of a beam-like structure as well as hinges ensuring the opening of the internal and external structures, as this is the case in the prior art.
- An upper bifurcation in the 12 o'clock position allows the fairing of the suspension mast.
- the structure and equipment required for pivoting and securing the two side structures 9a and 9b can be removed.
- the nacelle of the invention has a gain in mass, a gain in flexibility, a reduction in the complexity of the maintenance and a reduction in size.
- a nacelle of the invention reduces by about 5% the weight of each thrust reverser.
- air friction losses are reduced due to the reduction of the wet surface in contact with the air resulting from the reduction in the length of the lower bifurcation.
- the reduction results in a reduction in the fuel consumption of the engine of the order of 0.1%.
- a maintenance operation does not require moving a portion of the external structure or other elements of the nacelle of the invention to allow the opening of the internal structure.
- the structure of the invention comprises one or more of the following optional features considered alone or according to all the possible combinations:
- the internal structure is formed in the form of at least two elements, which allows easier opening of the internal structure and also access to localized areas without opening the entire internal structure;
- the elements are located on either side of a longitudinal plane of symmetry of the nacelle, allowing access to areas located on either side of the engine;
- the guiding system comprises at least one upstream connecting rod and at least one downstream connecting rod of different length and intended to connect the internal structure to the downstream part of the turbojet engine or to a part of the suspension pylon so that the respective axes of said connecting rods are contained in planes parallel to the axis of the turbojet engine without said axes being parallel to each other, which makes it possible to obtain a coupled rotational and translational movement which closely follows the profile of the turbojet engine;
- the guiding system comprises at least one connecting rod intended to connect the internal structure and the downstream part of the turbojet or part of the suspension pylon, and at least one sliding means capable of sliding in a corresponding slide intended to be mounted on the turbojet, which allows to move the internal structure closer to the turbojet engine profile;
- a pivot connects the slideway to the internal structure; -
- the axis of each slide is contained in a plane parallel to the axis of the turbojet, which allows to move the internal structure further downstream;
- the guiding system comprises at least one downstream sliding means and at least one upstream sliding means connected to the internal structure and able to slide each in a corresponding slide intended to be mounted on the turbojet engine or on a portion of the engine mast; suspension, and at least two pivots connecting each slide to the internal structure, which allows to further clear the internal structure;
- the internal structure comprises at least one locking device in the working position, which makes it possible to secure the platform when the aircraft is in operation;
- said locking device can be activated by means of a flexible downstream actuating cable upstream of the internal structure, which makes it possible to actuate the locking device in an easy manner.
- the subject of the invention is a turbojet engine for insertion into a nacelle according to the invention, comprising a downstream part comprising an upstream section of relatively small diameter and a downstream section of relatively large diameter, characterized in that it comprises mounting means mounted on the downstream portion and configured to cooperate with the guide system of the internal structure of the nacelle so that the internal structure moves by combining a rotational movement and translation according to the profile the upstream section of relatively small diameter and the downstream section of relatively large diameter between a working position in which the internal structure serves as a fairing of the downstream portion of the turbojet engine and a maintenance position in which the internal structure discovers said portion downstream of the turbojet.
- the mounting means comprise rails or slides capable of cooperating with the guide system of the internal structure of the nacelle.
- Such guiding means provide an easier opening for carrying out a maintenance operation on the engine.
- the subject of the invention is a suspension pylon for attaching a turbojet engine to a wing of an aircraft, said turbojet engine being substantially surrounded by a nacelle according to the invention, characterized in that it comprises mounting means configured to cooperate with the guide system of the internal structure of the nacelle so that at least a portion of said internal structure combines translational and rotational movement between a working position in which the internal structure serves refit of the downstream portion of the turbojet engine and a maintenance position in which the internal structure discovers the downstream part of the turbojet, allowing the displacement of said structure internal following the profile of the upstream section of relatively small diameter and the downstream section of relatively large diameter.
- the mounting means comprise rails or slides capable of cooperating with the guide system of the internal structure of the nacelle.
- the subject of the invention is a propulsion unit for an aircraft, characterized in that it comprises, on the one hand, a turbojet according to the invention or a mast according to the invention and, on the other hand , a corresponding nacelle according to the invention.
- FIG. 1 is a cross section of a nacelle of the prior art in the working position
- FIG. 2 is a cross section of the nacelle of Figure 1 in the maintenance position
- FIG. 3 is a cross section of a nacelle according to the invention comprising an internal structure in the working position;
- FIG. 4 is a sectional sectional view of a nacelle according to Figure 1 in the maintenance position
- FIG. 5 is a side view of a nacelle according to the invention in the maintenance position;
- FIG. 6 is a side view of a variant of the nacelle of FIG. 5;
- FIGS. 7 to 10 are perspective views of one embodiment of a nacelle according to the invention.
- FIGS. 11 to 14 are perspective views of a second embodiment of a nacelle according to the invention.
- FIGS. 15 to 18 are perspective views of a third embodiment of a nacelle according to the invention.
- FIG. 19 is a side view of another embodiment of a nacelle according to the invention.
- a nacelle 100 according to the invention comprises an upstream air intake structure 102, a median structure 103 surrounding a fan 104 of a turbojet engine 105, and a downstream structure comprising, in a manner known per se, an external structure 106, called OFS, housing thrust reverser means 107.
- the nacelle 100 according to the invention is attached downstream by via any suitable means, including rods, turbojet 105 and / or a suspension mast, not shown, for the attachment of the turbojet engine 105 under an aircraft wing.
- the thrust reversal means 107 are, for example, constituted by one or more doors or one or more grids.
- the outer structure 107 also defines an annular flow channel 108 with an internal structure 109, called IFS, concentric for surrounding a downstream portion 111 of the turbojet extending downstream of the fan.
- the internal structure 109 comprises an upstream section 113 of relatively small diameter widening in a downstream section 114 of relatively large diameter so as to substantially follow the profile of the turbojet engine 105.
- the internal structure 109 is formed of at least two elements, in particular two elements 120 and 122.
- the elements 120 and 122 allow easier opening of the internal structure 109.
- the elements 120 and 122 allow access to localized areas of the inner structure 109 without opening all of said internal structure.
- the elements 120 and 122 are located on either side of a longitudinal plane of symmetry 123 of the nacelle. Such an arrangement ensures an opening of the internal structure 109 to zones situated opposite to each other of the turbojet engine 105.
- the elements 120 and 122 are of substantially hemicylindrical shape, but these elements 120 and 122 may be of any other form known to those skilled in the art that is compatible with the profile of the turbojet engine 105.
- the structure of the turbojet engine 105 is substantially concealed by the elements 120 and 122 (FIG. 3) in the working position, namely in position allowing the aircraft to operate and in particular to fly.
- a guide system 140 is intended to connect the internal structure 109 to the downstream portion 111 of the turbojet engine.
- the guide system 140 allows the displacement of at least a part of the structure internal 109 along the profile of the upstream section of relatively small diameter 113 and the downstream section of relatively large diameter 114 by combining a translational movement and rotation between a working position in which the inner structure 109 serves as fairing of the downstream part 111 of the turbojet engine and a maintenance position in which the internal structure 109 discovers said downstream portion 111 of the turbojet engine.
- the guide system 140 advantageously allows the inner structure 109 to remain during its movement in the air flow passage 108 without striking the external structure 106 and avoiding the downstream portion 111 of the turbojet engine.
- the guide system 140 can be attached to the turbojet engine 105 or to the suspension mast for attaching the nacelle 100 of the invention to a wing of an aircraft.
- the outer structure 106 has as a thrust reversal means a door 150 ( Figure 5) or a set of grids 152 ( Figure 6).
- the door 150 and the set of grids 152 are able to be opened or closed via locks (not shown) located on the external structure 106.
- the nacelle 100 according to the invention also comprises an upstream structure. 154 comprising an air inlet structure 156 through which cold air enters.
- the internal structure 109 is moved downstream of the turbojet engine 105 by the guidance system 140. Access to the turbojet engine is achieved by the opening of the door 150, the external structure 106 remaining fixed.
- the internal structure 109 is also moved downstream of the turbojet engine 105 by the guidance system 140.
- the access to the turbojet engine 105 is achieved by the opening of the grids 152 which implies the displacement of the outer structure 106 also downstream.
- the guide system 140 comprises at least one upstream rod and at least one downstream rod.
- each element may comprise a guide system 140 comprising at least one upstream rod and at least one downstream rod.
- the guide system 140 comprises in particular four upstream rods, preferably two upstream rods 160, and in particular four downstream rods, preferably two downstream rods 162.
- the internal structure 109 comprises two elements 120
- two upstream and downstream rods which can be mounted at 12h thus connecting the turbojet engine 105 and the first element 120.
- two upstream and downstream connecting rods can be mounted at 6 o'clock connecting the second element to the turbojet engine 105.
- mounted at 6 o'clock means a device mounted diametrically opposite to the rods arranged at 12 o'clock.
- each element typically comprises the same number of rods arranged adequately with respect to the connecting rods of the first element.
- the guide system 140 has only one upstream connecting rod and one downstream connecting rod, it may be advantageous to connect the internal structure 109 to a part of the suspension pole.
- the two upstream and downstream connecting rods 160 and 162 are of different lengths.
- the downstream rods 160 and upstream 162 typically have a length of between 0.5 and 1 m, in particular between 0.75 and 0.85 m.
- the upstream rod 162 has a length 10 to 20% greater than the length of the downstream connecting rod 160.
- the connecting rods 160 and 162 connect the internal structure 109 to the downstream portion 111 of the turbojet engine so that the respective axes connecting rods 160 and 162 are contained in planes parallel to the axis 163 of the turbojet engine 105 without said axes being parallel to each other.
- the rods thus disposed 160 and 162 advantageously make it possible to follow as closely as possible the profile of the turbojet engine 105.
- the guiding system 140 comprises at least one connecting rod intended to connect the downstream part 111 of the turbojet engine and the internal structure 109, and at least one sliding means, capable of sliding in a corresponding slide intended to be mounted on the turbojet engine 105 or on a portion of the suspension pylon.
- each element may comprise at least one connecting rod and at least one sliding means as defined above.
- the guide system 140 comprises in particular two connecting rods, preferably a connecting rod 170, and in particular two sliding means, preferably a sliding means 172.
- the sliding means is at least one slide, at least a skate or any other means known to those skilled in the art.
- the guide system 140 connects said elements 120 to the downstream portion 111 of the turbojet or the suspension pylon.
- the guide system 140 has only one element and the guide system 140 has only one connecting rod 170 and a sliding means 172, it may be advantageous to connect the element of the structure. internal 109 to a part of the suspension mast.
- the elements 120 have the advantage of being able to move simultaneously.
- the guide system 140 may comprise two connecting rods, one of which is arranged at 12 o'clock and the other at 6 o'clock with respect to the turbojet engine 105, each connecting rod connecting an element.
- the guide system 140 may comprise two sliding means sliding in slides located at 12 o'clock and 6 o'clock whose axes are in a plane parallel to the axis 173 of the turbojet engine 105, each sliding means belonging to an element.
- each element typically comprises the same number of rods arranged adequately with respect to the connecting rods of the first element.
- a pivot 174 connects the slideway 172 to the inner structure 109 for moving the inner structure 109 closer to the profile of the turbojet engine 105.
- each slideway 172 is contained in a plane parallel to the axis 173 of the turbojet engine making it possible to obtain an even greater recoil downstream of the internal structure 109.
- the guiding system 140 comprises at least one downstream sliding means and at least one upstream sliding means connected to the internal structure 109 and each capable of sliding in a corresponding slide intended to be mounted on the turbojet engine 105 or on a portion of the suspension pylon, and at least one pivot connecting each slideway to the internal structure 109, making it possible to further disengage the structure downstream.
- each element may comprise a guiding system comprising at least one downstream sliding means and at least one upstream sliding means as defined above.
- the guide system 140 comprises in particular four downstream sliding means, preferably two, and in particular four upstream sliding means, preferably two which are able to slide in a corresponding slideway 180 and 182.
- the guide system 140 comprises in particular eight pivots, preferably four pivots 184 and 186.
- the downstream and upstream sliding means are configured so as to slide on or in the slides 180 and 182.
- the sliding means are sliders, pads or any other means known to those skilled in the art.
- the axes of the two slides 180 and 182 are not parallel to each other. However, the axis of each slideway 180, 182 is contained in a plane parallel to the axis 183 of the turbojet engine 105.
- the guide system 140 may comprise two sliding means sliding in slides located at 12 o'clock and 6 o'clock whose axes are in a plane parallel to the axis of the turbojet engine 105, each sliding means belonging to an element.
- each element typically comprises the same number of sliding means arranged adequately with respect to the sliding means of the first element. .
- the guide system 140 comprises only one upstream slide and one downstream slide, it may be advantageous to connect the element of the inner structure 109. to a part of the suspension mast.
- the internal structure 109 comprises at least one locking device 190 which makes it possible to secure the platform when the aircraft is in operation. operation.
- the locking device 190 comprises for example one or more locks 192 disposed in particular on the housing of the turbojet engine 105 and / or one or more latches 194 on the suspension mast or on the symmetrical part of the internal structure 109.
- the locking device 190 can be activated by means of a flexible cable (not shown) for operating downstream upstream of the internal structure 109.
- a flexible cable not shown
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/864,925 US8448896B2 (en) | 2008-01-30 | 2009-01-21 | Guiding system for aircraft nacelle maintenance |
EP09716458A EP2238032A2 (fr) | 2008-01-30 | 2009-01-21 | Système de guidage pour la maintenance d'une nacelle d'aéronef |
CA2708288A CA2708288A1 (fr) | 2008-01-30 | 2009-01-21 | Systeme de guidage pour la maintenance d'une nacelle d'aeronef |
BRPI0906986-0A BRPI0906986A2 (pt) | 2008-01-30 | 2009-01-21 | Nacela para tubo jato de uma aeronave, turbo jato de duplo fluxo, mastro de suspensão e conjunto de propulsão para aeronave. |
RU2010134982/11A RU2494927C2 (ru) | 2008-01-30 | 2009-01-21 | Направляющая система для технического обслуживания гондолы летательного аппарата |
CN200980103231.2A CN101925516B (zh) | 2008-01-30 | 2009-01-21 | 用于飞行器发动机舱维护的导引系统 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR08/00501 | 2008-01-30 | ||
FR0800501A FR2926790B1 (fr) | 2008-01-30 | 2008-01-30 | Systeme de guidage pour la maintenance d'une nacelle d'aeronef |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009109713A2 true WO2009109713A2 (fr) | 2009-09-11 |
WO2009109713A3 WO2009109713A3 (fr) | 2009-10-29 |
Family
ID=39739453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2009/000062 WO2009109713A2 (fr) | 2008-01-30 | 2009-01-21 | Système de guidage pour la maintenance d'une nacelle d'aéronef |
Country Status (8)
Country | Link |
---|---|
US (1) | US8448896B2 (fr) |
EP (1) | EP2238032A2 (fr) |
CN (1) | CN101925516B (fr) |
BR (1) | BRPI0906986A2 (fr) |
CA (1) | CA2708288A1 (fr) |
FR (1) | FR2926790B1 (fr) |
RU (1) | RU2494927C2 (fr) |
WO (1) | WO2009109713A2 (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9783315B2 (en) * | 2012-02-24 | 2017-10-10 | Rohr, Inc. | Nacelle with longitudinal translating cowling and rotatable sleeves |
US9217390B2 (en) * | 2012-06-28 | 2015-12-22 | United Technologies Corporation | Thrust reverser maintenance actuation system |
FR2999155B1 (fr) * | 2012-12-12 | 2014-11-21 | Aircelle Sa | Ensemble propulsif pour aeronef |
US10094286B2 (en) | 2013-01-29 | 2018-10-09 | United Technologies Corporation | Gas turbine engine with lower bifurcation heat exchanger |
US9404507B2 (en) * | 2013-04-15 | 2016-08-02 | Mra Systems, Inc. | Inner cowl structure for aircraft turbine engine |
US8979020B2 (en) * | 2013-06-07 | 2015-03-17 | Pratt & Whitney Canada Corp. | Mounting system for mounting engine nacelle components and associated method |
US9370827B2 (en) * | 2013-08-28 | 2016-06-21 | The Boeing Company | System and method for forming perforations in a barrel section |
US9797271B2 (en) | 2014-04-25 | 2017-10-24 | Rohr, Inc. | Access panel(s) for an inner nacelle of a turbine engine |
DE102015206093A1 (de) * | 2015-04-02 | 2016-10-06 | Rolls-Royce Deutschland Ltd & Co Kg | Triebwerksverkleidung einer Fluggasturbine |
FR3044719B1 (fr) * | 2015-12-08 | 2017-12-22 | Snecma | Ensemble de propulsion d'aeronef equipe de marches permettant a un operateur d'atteindre sa portion superieure |
FR3075176B1 (fr) * | 2017-12-18 | 2020-11-06 | Safran Aircraft Engines | Ensemble de capot ouvrant et mecanisme de deploiement |
FR3110547B1 (fr) * | 2020-05-20 | 2022-04-22 | Safran Nacelles | Nacelle pour ensemble propulsif à très grand taux de dilution, comprenant une structure interne avant amovible et structurelle |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2622930A1 (fr) * | 1987-11-06 | 1989-05-12 | Aerospatiale | Capotage pour turboreacteur a double flux |
FR2897339A1 (fr) * | 2006-02-16 | 2007-08-17 | Aircelle Sa | Nacelle de turboreacteur a ouverture laterale des capots |
FR2901244A1 (fr) * | 2006-05-16 | 2007-11-23 | Airbus France Sas | Dispositif d'articulation de portes d'une nacelle d'aeronef et nacelle equipee dudit dispositif d'articulation |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU290678A1 (ru) * | 1969-08-19 | 1980-01-15 | Предприятие | Капот двигател летательного аппарата |
CN1206670A (zh) * | 1997-07-29 | 1999-02-03 | 王建成 | 多功能碟形飞行器 |
US6220546B1 (en) * | 1999-12-29 | 2001-04-24 | The Boeing Company | Aircraft engine and associated aircraft engine cowl |
FR2916737B1 (fr) * | 2007-06-01 | 2010-05-28 | Airbus France | Ensemble moteur pour aeronef a nacelle coulissante. |
-
2008
- 2008-01-30 FR FR0800501A patent/FR2926790B1/fr not_active Expired - Fee Related
-
2009
- 2009-01-21 BR BRPI0906986-0A patent/BRPI0906986A2/pt not_active IP Right Cessation
- 2009-01-21 WO PCT/FR2009/000062 patent/WO2009109713A2/fr active Application Filing
- 2009-01-21 RU RU2010134982/11A patent/RU2494927C2/ru not_active IP Right Cessation
- 2009-01-21 CN CN200980103231.2A patent/CN101925516B/zh not_active Expired - Fee Related
- 2009-01-21 US US12/864,925 patent/US8448896B2/en not_active Expired - Fee Related
- 2009-01-21 EP EP09716458A patent/EP2238032A2/fr not_active Withdrawn
- 2009-01-21 CA CA2708288A patent/CA2708288A1/fr not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2622930A1 (fr) * | 1987-11-06 | 1989-05-12 | Aerospatiale | Capotage pour turboreacteur a double flux |
FR2897339A1 (fr) * | 2006-02-16 | 2007-08-17 | Aircelle Sa | Nacelle de turboreacteur a ouverture laterale des capots |
FR2901244A1 (fr) * | 2006-05-16 | 2007-11-23 | Airbus France Sas | Dispositif d'articulation de portes d'une nacelle d'aeronef et nacelle equipee dudit dispositif d'articulation |
Also Published As
Publication number | Publication date |
---|---|
US20100327110A1 (en) | 2010-12-30 |
FR2926790A1 (fr) | 2009-07-31 |
BRPI0906986A2 (pt) | 2015-07-21 |
RU2010134982A (ru) | 2012-03-10 |
FR2926790B1 (fr) | 2010-02-12 |
US8448896B2 (en) | 2013-05-28 |
CN101925516B (zh) | 2015-10-21 |
CA2708288A1 (fr) | 2009-09-11 |
EP2238032A2 (fr) | 2010-10-13 |
CN101925516A (zh) | 2010-12-22 |
WO2009109713A3 (fr) | 2009-10-29 |
RU2494927C2 (ru) | 2013-10-10 |
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