WO2010040907A1 - Structure d'entrée d'air pour une nacelle pour turboréacteur - Google Patents
Structure d'entrée d'air pour une nacelle pour turboréacteur Download PDFInfo
- Publication number
- WO2010040907A1 WO2010040907A1 PCT/FR2009/000893 FR2009000893W WO2010040907A1 WO 2010040907 A1 WO2010040907 A1 WO 2010040907A1 FR 2009000893 W FR2009000893 W FR 2009000893W WO 2010040907 A1 WO2010040907 A1 WO 2010040907A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air intake
- extension
- lip
- panel
- intake structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/78—Other construction of jet pipes
- F02K1/82—Jet pipe walls, e.g. liners
- F02K1/822—Heat insulating structures or liners, cooling arrangements, e.g. post combustion liners; Infrared radiation suppressors
-
- 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
- B64D29/06—Attaching of nacelles, fairings or cowlings
-
- 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
- B64D33/00—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/02—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
-
- 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
- B64D33/00—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/02—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
- B64D2033/0206—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes comprising noise reduction means, e.g. acoustic liners
-
- 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
- B64D33/00—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/02—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
- B64D2033/0266—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes specially adapted for particular type of power plants
- B64D2033/0286—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes specially adapted for particular type of power plants for turbofan engines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Definitions
- an aircraft nacelle has a structure comprising an air intake structure, a median structure and a downstream section.
- the term “downstream” is understood here to mean the direction corresponding to the direction of the flow of cold air entering the turbojet engine.
- the term “upstream” refers to the opposite direction.
- the air intake structure is located upstream of the turbojet engine used to propel the aircraft. Downstream of the air intake structure, the median structure is intended to surround a blower of the turbojet engine. Further downstream is the downstream section generally housing thrust reverser means for surrounding the combustion chamber of the turbojet engine.
- the nacelle ends with an ejection nozzle whose output is located downstream of the turbojet engine.
- the air inlet structure comprises at least one outer panel, at least one inner panel and one air inlet lip having an inner wall intended to be in contact with the airflow entering the turbojet engine.
- the outer panel or panels extend into the air intake lip. In other words, generally, the outer panel or panels are not reported on the air intake lip.
- the air inlet lip is removably attached to the inner panel (s).
- the mobile structure comprising an air intake lip and the outer panel or panels is movable relative to a fixed structure comprising the internal panel or panels.
- Such a mobile structure provides access to the equipment housed inside the nacelle to perform maintenance of the latter.
- the internal panel or panels may be provided with at least one acoustic panel, in particular a honeycomb structure, so as to absorb the acoustic nuisances resulting from the operation of the turbojet engine.
- the nacelle also has a partition generally attached to the air inlet lip, thus defining a cavity in which cables or different devices intended to ensure the operation of the nacelle are housed, in particular means for deicing the lip of air inlet.
- the median structure is intended to surround the fan of the turbojet engine. Said structure is attached to the air intake structure in a fixed manner by the one or more internal panels and movably by the outer panel or panels so as to ensure aerodynamic continuity.
- the upstream movable structure of the median structure is generally slid by guiding means.
- guide means are in the form of a rail system.
- the air intake structure In flight condition, the air intake structure is in the closed position, ie the movable structure is fixed on the inner panel (s) and on the middle structure.
- the interface zone between the mobile structure and the fixed structure of the nacelles is located near the partition.
- the air intake lip comprises an interface device in the vicinity of the partition, typically in the form of an L-shaped downstream end configured to be fixed on a complementary device vis-à-vis -vis belonging to an internal panel.
- the air intake lip undergoes temperatures of up to about 400 ° C.
- Such a thermal stress causes an expansion.
- important materials composing the air intake lip The expansion induces a significant deformation of the latter introducing a force pulling the mobile structure upstream.
- a large clearance resulting in the interface zone greatly compromises the performance of the turbojet engine.
- the internal panel or panels are made of composite materials. As a result, the latter undergo significant thermal stresses resulting in structural degradation.
- an object of the present invention is to provide an air intake structure for a nacelle not having the aforementioned drawbacks.
- the subject of the invention is an air intake structure for a turbojet engine nacelle for channeling a flow of air towards a fan of the turbojet engine, comprising at least one external panel, at less an inner panel and an air inlet lip having an inner wall intended to be in contact with the airflow entering the turbojet and a partition separating the air intake lip from the rest of the nacelle, remarkable in that the air intake lip has an extension adapted to be fixed on the inner panel and extending substantially in continuity with the inner wall downstream of the air inlet structure over a length of less than about the maximum distance between the bulkhead and the air intake lip.
- the air intake structure of the invention comprises an air intake lip whose inner wall has an extension beyond the partition, downstream of the air intake structure of the air intake. 'invention.
- the interface area carried by said extension is also moved further downstream than that of the prior art.
- the interface zone undergoes more or very little thermal stress and therefore the deformation of the air intake lip which avoids the presence of play in said zone.
- the air intake structure of the invention comprises one or more of the following optional features considered alone or according to all the possible combinations:
- the extension comprises an interface element adapted to be fixed on a corresponding interface element fixed on the inner panel which allows to removably fix the air inlet lip to the inner panel; the extension is attached to the inner wall of the air intake lip, which makes it possible to use standard air inlet lips;
- the extension is a structuring panel with alveolar core, which improves the mechanical strength of the extension;
- the structuring panel is acoustic which increases the acoustic surface and thus the acoustic performance of the nacelle;
- the extension is a substantially continuous extension of the inner wall of the air inlet lip which facilitates the mounting of the air inlet structure;
- the inner wall and the extension are structuring panels with cellular cores, which makes it possible to increase the acoustic surface of the air inlet structure;
- a reinforcement partition is attached to the extension at the level of the interface zone with the inner panel, which makes it possible to reinforce the structural strength of the mobile structure while limiting the associated mass gain.
- the invention relates to a turbojet engine nacelle comprising an air intake structure of the invention.
- FIG. 1 is a perspective representation of a nacelle comprising an air intake structure of the invention in the open position
- FIG. 2 is a partial longitudinal section of an air intake structure according to the invention in the closed position
- FIG. 3 is a partial longitudinal section of the air intake structure of the embodiment of FIG. 2 in the open position
- FIG. 4 is a partial longitudinal section of a variant of the air intake structure of FIG. 2 in the closed position
- FIG. 5 is a partial longitudinal section of another variant of the air intake structure of FIG. 2 in the open position
- FIG. 6 a partial longitudinal section of another variant of the structure of FIG. the air inlet of FIG. 2 in the closed position.
- a nacelle 1 comprising an air intake structure according to the invention constitutes a tubular housing for a turbojet engine (not visible) for which it serves to channel the air flows that it generates by defining internal and external aerodynamic lines necessary to obtain optimal performances. It also houses various components necessary for the operation of the turbojet as well as ancillary systems such as a thrust reverser.
- the nacelle 1 is intended to be attached to a fixed structure of an aircraft, such as a wing 2, by means of a pylon 3.
- the nacelle 1 has a structure comprising an air inlet structure 4 of the invention upstream, a median structure 5 surrounding a blower (not visible) of the turbojet, and a downstream section 6 surrounding the turbojet engine and housing generally a thrust reversal system (not shown).
- the median structure 5 comprises a casing 9 attached at one end to the air intake structure 4 of the invention so as to ensure aerodynamic continuity.
- the air intake structure 4 of the invention is divided into three zones.
- the first zone furthest upstream is an air intake lip 4a adapted to allow optimal capture to the turbojet of the air necessary to supply the blower and the internal compressors of the turbojet engine.
- the second zone is a section 4b connected to one end of the air inlet lip 4a comprising at least one outer panel 40.
- the third zone is a section 4c connected to the other end of the inlet lip of 4a and having at least one inner panel 41.
- the inner panel (s) 41 is (are) intended (s) to properly channel the air to the blades (not shown) of the blower.
- the inner panel or panels 41 are thus fixed at their downstream end to an upstream end of the casing 9 by means of fixing flanges.
- the internal panel or panels 41 form with the median structure 5 a fixed structure relative to the nacelle 1.
- the internal panel or panels 41 may comprise an acoustic shroud intended to reduce noise pollution due to the operation of the turbojet engine and to the vibrations of the structure.
- the acoustic ferrule is typically made of a honeycomb structure or any other structure known to those skilled in the art for absorbing noise.
- the internal panel or panels 41 are made of carbon composite material, or even aluminum.
- the air intake lip 4a is fixed to the outer panel (s) 40 so as to form a single removable piece, called mobile structure.
- the air intake lip 4a may be integrated with the external panel (s) 40.
- the outer panel or panels 40 are made of carbon composite material, or even aluminum.
- the air inlet lip 4a is made of aluminum, titanium or any other high temperature composite material known to those skilled in the art.
- the latter is typically provided with guide means 15 capable of allowing substantially rectilinear movement of the outer panel (s) 40 upstream of the nacelle 1 so as to ability to open air intake structure 4 for maintenance purposes.
- guide means 15 capable of allowing substantially rectilinear movement of the outer panel (s) 40 upstream of the nacelle 1 so as to ability to open air intake structure 4 for maintenance purposes.
- a rail system mention may be made of the rail systems described in application FR 2 906 568, such as sliders on rails, a trench rail capable of cooperating with a slide system, a trolley system, roller skates adapted to cooperate with a corresponding rail and a longitudinal axis slidable through a corresponding opening.
- the air intake structure 4 of the invention also comprises a partition 45 separating the air inlet lip 4a from the rest of said air inlet structure 4.
- the partition 45 thus makes it possible to define a cavity 47 in which equipment, such as de-icing equipment, is arranged to operate the platform 1.
- equipment such as de-icing equipment
- the partition 45 and the air intake lip 4a are separated by a maximum distance d.
- the maximum distance d here corresponds to the distance separating the point of the air intake lip 4a furthest from the partition 45 in a longitudinal section.
- the maximum distance d corresponds to the length of the cavity 47.
- the partition 45 is made of aluminum, titanium, or any other high temperature composite material known to those skilled in the art.
- the air intake lip 4a further comprises an extension 60 adapted to be fixed on the inner panel 41 extending beyond the partition 45, substantially in continuity with the inner wall 70, over a length I at least equal to about the maximum distance d between the partition 45 and the air intake lip 4a.
- the extension 60 extends downstream of the air intake structure of the invention and more generally of the nacelle 1, the interface zone between the internal panel (s) 41 and the extension 60 no longer suffers or very little deformation of the air intake lip 4a. Thus, said zone has little or no clearance between the inner panel 41 and the extension 60.
- the extension 60 typically has a length I between 50 mm and 400 mm, or even between 150 mm and 300 mm, in particular equal to about 200 mm. Such length I provides an extension 60 having an interface not or slightly subject to deformation of the air inlet lip 4a. Furthermore, the extension 60 is typically made of aluminum, or even carbon composite material.
- the extension 60 is attached to the inner wall 70 of the air intake lip
- the extension 60 is for example reported by bolting or any other means known to those skilled in the art.
- the extension 60 may advantageously be a structuring panel with a cellular core, which further improves the mechanical strength of the extension 60.
- the structuring panel is acoustic, which makes it possible to increase the acoustic surface area. and thus the acoustic performance of the pod 1.
- the extension 60 can be different in order to better absorb the acoustic nuisances To obtain different impedances, it is possible to modify certain parameters of the acoustic panel such as the depth of the acoustic cells, the number of cell layers, the diameter of the acoustic holes. It is also possible to provide a transition zone between the two acoustic treatments.
- the extension 60 comprises an interface element 62 able to be attached to an interface element 64 correspondingly fixed on the inner panel 41 which allows to removably fix the air inlet lip 4a to the inner panel 41.
- the interface device 64 is mounted substantially vis-à-vis the interface device 62 and is substantially complementary in shape to said interface element 62.
- Interface elements 62 and 64 are all interface elements known to those skilled in the art.
- the interface elements 62 and 64 can also fulfill the role of centering the mobile structure on the fixed structure.
- rigid centering means such as centering pins adapted to cooperate with corresponding bores, and / or flexible to ensure structural continuity, such as an elastic tongue.
- an elastic tongue In the case where an elastic tongue is used, it is located in extension of the extension 60.
- resilient tongue include those described in the international application WO 2008/040877.
- the interface device 62 may be attached to the downstream end of the surface of extension 60 and facing inward of the air intake structure 4 of the invention.
- the interface device 62 is an extension of the downstream end of the extension 60.
- the structure of the guide means 15 may overflow the upstream interface of the inner panel 41. If it is necessary to bind the end of said structure protruding from the inner panel 41, it is possible to fix a connection 68 on the interface device 64 of the inner panel or the non-acoustic skin of said panel 41 which is oriented towards the inside of the air intake structure 4.
- the link 68 used may be of any type known to man of the profession and adapted to this application. By way of example, there may be mentioned a support flange connection.
- the inner wall 70 is extended continuously in the extension 60 which simplifies the mounting of the air intake structure 4 of the invention.
- the extension 60 is also a metal sheet coated with an outer skin.
- the inner wall 70 and the extension 60 are structuring panels with a cellular core, possibly treated acoustically.
- the acoustic treatment of the extension 60 and the inner wall 70 can be different in order to obtain impedances of different values. It is thus possible to modify certain parameters of the acoustic panel such as the depth of the acoustic cells, the number of cell layers, the diameter of the acoustic holes.
- a reinforcing partition 80 is attached to the extension 60 at the level of the interface zone with the inner panel 41, which makes it possible to reinforce the structural strength of the mobile structure while limiting the associated mass gain.
- the reinforcing partition 80 is typically mounted downstream and opposite the usual partition 45.
- the reinforcing partition 80 is made of acoustic carbon material in order to substantially preserve the mass of the nacelle 1.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General 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 |
|---|---|---|---|
| CA2733602A CA2733602A1 (fr) | 2008-10-08 | 2009-07-21 | Structure d'entree d'air pour une nacelle pour turboreacteur |
| CN2009801388168A CN102171101A (zh) | 2008-10-08 | 2009-07-21 | 用于涡轮喷气发动机舱的进气口结构 |
| RU2011118077/11A RU2500585C2 (ru) | 2008-10-08 | 2009-07-21 | Воздухозаборник для гондолы турбореактивного двигателя |
| US13/122,888 US20110192134A1 (en) | 2008-10-08 | 2009-07-21 | Air intake structure for a turbine engine nacelle |
| BRPI0917880A BRPI0917880A2 (pt) | 2008-10-08 | 2009-07-21 | estrutura de entrada de ar para nacela de motor turbojato tencionada, nacela para um motor turbojato. |
| EP09784280A EP2344383A1 (fr) | 2008-10-08 | 2009-07-21 | Structure d'entrée d'air pour une nacelle pour turboréacteur |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR08/05553 | 2008-10-08 | ||
| FR0805553A FR2936777B1 (fr) | 2008-10-08 | 2008-10-08 | Structure d'entree d'air pour une nacelle pour turboreacteur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010040907A1 true WO2010040907A1 (fr) | 2010-04-15 |
Family
ID=40673956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2009/000893 Ceased WO2010040907A1 (fr) | 2008-10-08 | 2009-07-21 | Structure d'entrée d'air pour une nacelle pour turboréacteur |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20110192134A1 (fr) |
| EP (1) | EP2344383A1 (fr) |
| CN (1) | CN102171101A (fr) |
| BR (1) | BRPI0917880A2 (fr) |
| CA (1) | CA2733602A1 (fr) |
| FR (1) | FR2936777B1 (fr) |
| RU (1) | RU2500585C2 (fr) |
| WO (1) | WO2010040907A1 (fr) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2984280B1 (fr) * | 2011-12-15 | 2013-12-20 | Aircelle Sa | Structure d'entree d'air pour nacelle de turboreacteur |
| US9783315B2 (en) * | 2012-02-24 | 2017-10-10 | Rohr, Inc. | Nacelle with longitudinal translating cowling and rotatable sleeves |
| FR2993862B1 (fr) * | 2012-07-30 | 2015-08-21 | Turbomeca | Entree d'air pour moteur d'helicoptere a circulation de contournement augmentee |
| US9211955B1 (en) * | 2012-12-10 | 2015-12-15 | The Boeing Company | Methods and apparatus for supporting engines and nacelles relative to aircraft wings |
| FR3004700B1 (fr) * | 2013-04-19 | 2015-04-03 | Aircelle Sa | Nacelle pour turboreacteur d’aeronef a levre avant etendue |
| US9702375B2 (en) | 2013-07-16 | 2017-07-11 | United Technologies Corporation | Liner attaching scheme |
| US10837362B2 (en) | 2016-10-12 | 2020-11-17 | General Electric Company | Inlet cowl for a turbine engine |
| CN109110143B (zh) * | 2018-09-07 | 2020-09-04 | 叶加军 | 一种无人机发动机进行口装置 |
| FR3095194B1 (fr) * | 2019-04-17 | 2021-08-13 | Safran Aircraft Engines | Entrée d’air de nacelle de turboréacteur comprenant un dispositif de déviation pour favoriser une phase d’inversion de poussée |
| US11975847B2 (en) * | 2022-03-16 | 2024-05-07 | General Electric Company | Ice protection systems for aircraft |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006136748A2 (fr) * | 2005-06-22 | 2006-12-28 | Airbus France | Systeme d'anti-givrage et de degivrage de nacelle de moteur d'aeronef a tapis resistif |
| FR2906568A1 (fr) * | 2006-10-02 | 2008-04-04 | Aircelle Sa | Structure d'entree d'air deposable pour nacelle de turboreacteur. |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1413860A1 (ru) * | 1985-07-04 | 2005-02-20 | Ю.А. Куранов | Противообледенительная система воздухозаборника вспомогательной силовой установки летательного аппарата |
| US4817756A (en) * | 1985-08-26 | 1989-04-04 | Aeronautic Development Corp. Ltd. | Quiet nacelle system and hush kit |
| FR2661213B1 (fr) * | 1990-04-19 | 1992-07-03 | Snecma | Moteur d'aviation a tres grand taux de dilution et du type dit contrafan avant. |
| GB9120658D0 (en) * | 1991-09-27 | 1991-11-06 | Short Brothers Plc | Ducted fan turbine engine |
| GB9301457D0 (en) * | 1993-01-26 | 1993-03-17 | Short Brothers Plc | An aircraft propulsuve power unit |
| GB9407632D0 (en) * | 1994-04-18 | 1994-06-08 | Short Brothers Plc | An aircraft propulsive power unit |
| US6340135B1 (en) * | 2000-05-30 | 2002-01-22 | Rohr, Inc. | Translating independently mounted air inlet system for aircraft turbofan jet engine |
| US7588212B2 (en) * | 2003-07-08 | 2009-09-15 | Rohr Inc. | Method and apparatus for noise abatement and ice protection of an aircraft engine nacelle inlet lip |
| FR2887519B1 (fr) * | 2005-06-22 | 2008-10-10 | Airbus France Sas | Systeme d'anti-givrage et de degivrage de nacelle de moteur d'aeronef a tapis resistif |
| FR2898939B1 (fr) * | 2006-03-22 | 2008-05-09 | Snecma Sa | Systeme de degivrage d'un cone d'entree de turbomoteur pour aeronef |
| US8197191B2 (en) * | 2009-04-14 | 2012-06-12 | Rohr, Inc. | Inlet section of an aircraft engine nacelle |
-
2008
- 2008-10-08 FR FR0805553A patent/FR2936777B1/fr not_active Expired - Fee Related
-
2009
- 2009-07-21 WO PCT/FR2009/000893 patent/WO2010040907A1/fr not_active Ceased
- 2009-07-21 BR BRPI0917880A patent/BRPI0917880A2/pt not_active IP Right Cessation
- 2009-07-21 CN CN2009801388168A patent/CN102171101A/zh active Pending
- 2009-07-21 CA CA2733602A patent/CA2733602A1/fr not_active Abandoned
- 2009-07-21 RU RU2011118077/11A patent/RU2500585C2/ru not_active IP Right Cessation
- 2009-07-21 EP EP09784280A patent/EP2344383A1/fr not_active Withdrawn
- 2009-07-21 US US13/122,888 patent/US20110192134A1/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006136748A2 (fr) * | 2005-06-22 | 2006-12-28 | Airbus France | Systeme d'anti-givrage et de degivrage de nacelle de moteur d'aeronef a tapis resistif |
| FR2906568A1 (fr) * | 2006-10-02 | 2008-04-04 | Aircelle Sa | Structure d'entree d'air deposable pour nacelle de turboreacteur. |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110192134A1 (en) | 2011-08-11 |
| CN102171101A (zh) | 2011-08-31 |
| FR2936777B1 (fr) | 2010-10-22 |
| RU2011118077A (ru) | 2012-11-20 |
| RU2500585C2 (ru) | 2013-12-10 |
| FR2936777A1 (fr) | 2010-04-09 |
| EP2344383A1 (fr) | 2011-07-20 |
| CA2733602A1 (fr) | 2010-04-15 |
| BRPI0917880A2 (pt) | 2015-11-24 |
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