WO2014111663A1 - Tuyère de nacelle à dispositifs de régulation de pression - Google Patents
Tuyère de nacelle à dispositifs de régulation de pression Download PDFInfo
- Publication number
- WO2014111663A1 WO2014111663A1 PCT/FR2014/050087 FR2014050087W WO2014111663A1 WO 2014111663 A1 WO2014111663 A1 WO 2014111663A1 FR 2014050087 W FR2014050087 W FR 2014050087W WO 2014111663 A1 WO2014111663 A1 WO 2014111663A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nozzle
- annular element
- downstream end
- outlet
- air
- 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
- F02K1/06—Varying effective area of jet pipe or nozzle
- F02K1/09—Varying effective area of jet pipe or nozzle by axially moving an external member, e.g. a shroud
-
- 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
- F02K1/06—Varying effective area of jet pipe or nozzle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
-
- 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
- F02K1/38—Introducing air inside the jet
-
- 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
- F02K1/46—Nozzles having means for adding air to the jet or for augmenting the mixing region between the jet and the ambient air, e.g. for silencing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/32—Application in turbines in gas turbines
- F05D2220/323—Application in turbines in gas turbines for aircraft propulsion, e.g. jet 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
- the invention relates to the field of nozzle nacelles of turbojet engines and more precisely nozzles adapted to the operation of engines with a high dilution ratio.
- An aircraft is propelled by one or more propulsion units each comprising a turbojet engine housed in a tubular nacelle.
- Each propulsion unit is attached to the aircraft by a mast generally located under a wing or at the fuselage.
- a nozzle generally has a structure comprising an upstream section of air inlet, upstream of the engine, a median section intended to surround a fan of the turbojet, and a downstream section intended to surround the combustion chamber of the turbojet engine and housing the most often means of thrust reversal.
- upstream is what comes before the point or element considered, in the direction of the flow of air in a turbojet, and downstream which comes after the point or element considered, in the direction of flow air in a turbojet.
- VAFN Variable-Area Fan Nozzle
- the rate of compression is low, less than 1, 3 while the dilution ratio, that is to say the ratio between the air mass of the cold flow and that of the hot flow of a turbojet engine, is high.
- the dilution ratio that is to say the ratio between the air mass of the cold flow and that of the hot flow of a turbojet engine
- Document EP 0 578 951 A1 discloses a thrust nozzle for an engine block comprising a fixed nozzle and a divergent fixed nozzle extension that can be moved axially for an enlargement on the outlet side of the gas flow channel. which, in the extended position, is essentially connected to an identical shape at the diverging outlet end of the outer wall of the fixed nozzle.
- the fixed nozzle extension, in the retracted position, and the fixed nozzle together form a controllable air outlet channel surrounding the wall end of the thrust nozzle in annular form.
- the fixed nozzle extension is shaped so that, in the deployed position, its upstream end essentially connects to a shape identical to the downstream end of the fixed nozzle of the engine block. and in the retracted position it forms an air passage channel with the fixed nozzle.
- the nozzle extension can take only two positions, the retracted position and the deployed position. Finally, in the retracted position, the fixed nozzle extension can not act on the air flow with the fixed nozzle.
- a nozzle technology developed in vertical take-off aircraft with steerable nozzles has also been proposed with subsonic horns ejecting a flow through a fixed annular element (6).
- This technology is essentially intended to help direct the thrust to the ground.
- the invention aims to solve the aforementioned drawbacks and in particular the low efficiency of the devices of the prior art for a very high dilution rate and a low compression ratio of a turbojet of an aircraft flying at low speed thus causing risks of pumping the engine.
- the present invention consists, to avoid pumping the engine, to adapt the static output pressure of a nozzle.
- the invention proposes a nozzle comprising a device for regulating the output pressure of a remarkable air flow in that said device comprises an annular element surrounding the downstream end of the nozzle and at a distance of thereof, and means for adjusting the position of at least a portion of the annular element with respect to the downstream end of the nozzle, and in that the annular element forms with the downstream end of the nozzle.
- nozzle a necking zone, the widest part of which is upstream of its narrowest part, and whose profile is variable depending on the position of the annular element.
- the annular element and the nozzle together define an annular surrounding channel at the downstream end of the nozzle.
- an air flow can take place between the annular element and the downstream end of the nozzle.
- the annular element may be deformable so that only a part of the annular element can be adjusted in position.
- adjusting the position of at least a portion of the annular element makes it possible to modulate the air flow between the annular element and the nozzle, that is to say, to modulate its speed and pressure. at the outlet of the annular element.
- the air circulating between the annular element and the nozzle makes it possible to shrink the air flow at the outlet of the nozzle and thus to have an influence on the pressure of the flow of air leaving the nozzle. nozzle.
- the zone of necking makes it possible to accelerate the flow of the air passing between the annular element and the nozzle, consequently the pressure at the end of the necking zone is smaller than the ambient pressure, this is called a necking effect (or trompe effect).
- a necking effect or trompe effect.
- the air flowing in the nozzle flows in a depression zone in the vicinity of the downstream end of the nozzle.
- the outlet pressure of the nozzle and therefore the compression ratio are decreased.
- the stronger the necking effect, the lower the pressure at the outlet of the necking zone, and therefore the lower the outlet pressure of the nozzle and the compression ratio are small.
- the flow of air flowing between the annular element and the nozzle maximizes the structure of the current lines, in particular by keeping the current lines as close as possible to those present without the annular element.
- the position of the annular element can be adjusted so that it forms with the nozzle a zone of necking substantially zero (or uniform). In this configuration, the air passing between the annular element and the nozzle is then not substantially accelerated and therefore has substantially no effect on the pressure of the air flow at the outlet of the nozzle.
- the annular element is always inclined with respect to the downstream end of the nozzle in a necking configuration such that the necking zone generates a so-called shape thrust, it is that is, a thrust made possible only by the shape of a static part (in the same way that a ramjet uses a particular form of static input shaft to compress the air entering it), compensating for the drag friction added by the presence of the annular element.
- the inner wall of the annular element forms with the nozzle a zone of convergence - divergence with respect to the direction of flow of the air.
- the convergent zone situated upstream of the annular element serves to obtain the necking effect or trompe effect described above, and the dive region in which the annular element advantageously makes it possible to generate an increase the thrust force of the assembly formed by the nozzle and the turbojet engine.
- the outer wall of the annular element is substantially flat and the upstream and downstream edges of the annular element are rounded.
- the boundary line between the convergence and divergence zones of the annular element may be situated in the plane in which inscribes the downstream end of the nozzle in at least one of the positions of the annular element.
- the annular element consists of a plurality of rigid flaps or sectors.
- the rigid flaps are evenly distributed along the contour of the downstream end of the nozzle.
- the rigid flaps thus distributed allow a flow of air between the annular element and the nozzle so that the air flow at the outlet of the nozzle is substantially sheathed by the flow of air at the outlet of the channel formed by the annular element and the downstream end of the nozzle, the control of the pressure of the air flow at the outlet of the nozzle is therefore easier.
- the annular element consisting of a plurality of rigid flaps is rotatable along axes tangent to the nozzle and substantially orthogonal to the axis of the nozzle.
- a slight increase in the inclination of the rigid flaps of the annular element relative to the nozzle of the order of a few degrees (for example 2 or 3 degrees) allows a displacement of the upstream end of the element.
- the rigid flaps are rotatably mounted about an axis proper to each, each axis is carried by a support fixed on the downstream end of the nozzle.
- the annular element is movable in translation, whether it is constituted by a plurality of rigid flaps or in any other manner.
- the mobility in translation of the annular element constitutes a simple way of adjusting the necking effect.
- the rigid flaps can be both movable in translation and in rotation so as to obtain a wider range of necking effect and a finer adjustment of the pressure of the flap. air flow at the outlet of the nozzle.
- the annular element comprises inflatable boxes.
- the inflatable chambers are deformable at least at their downstream end under the effect of pressure.
- the flow of air passing through the channel formed by the annular element consisting of inflatable boxes and the nozzle can deform said boxes.
- the inflatable chambers can be translatable and / or rotatably mounted around an axis specific to each, each axis being carried by a support fixed on the downstream end of the nozzle.
- the internal pressure of the inflatable chambers is regulated by means of a device of the compressed air motor type.
- the device of the compressed air motor type allows the regulation of the internal pressure of the air chambers as a function of the pressure of the air flow at the outlet of the desired nozzle.
- the airbag technology can be combined with that of the rigid flaps such that the annular element consists of a plurality of flaps each having a rigid upstream zone and a deformable downstream zone under the pressure consisting of an inflatable box whose internal pressure can be regulated.
- the inlet section in the necking zone has an area close to or greater than the exit section of the nozzle.
- the necking effect is used to increase the thrust during take-off of the aircraft and improve the propulsive efficiency of the blower while maintaining a low dilution ratio suitable for cruising operation.
- the annular element is displaced in such a manner that the necking effect is substantially zero.
- the nozzle comprises a flexible pressurized air injection device located at the nozzle.
- the modular pressurized air injection device performs an air injection in the upstream direction downstream of the nozzle and is oriented such that the resulting air flow enters the formed channel. by the annular element and the nozzle.
- the device for injecting pressurized air is located upstream of the annular element in the immediate vicinity of the upstream end of the annular element or edge of attack of the annular element.
- such a modular pressurized air injection device combined with the annular element eliminates the need to change the position of the annular element (fixed annular element relative to the nozzle) in order to control the pressure of the flow. air out of the nozzle.
- FIG. 1a is a perspective view of a nacelle equipped with a nozzle according to a first embodiment of the present invention
- FIG. 1b is a schematic view of a nozzle according to the first embodiment of the present invention.
- FIG. 2a represents a perspective view of a nacelle equipped with a nozzle according to a second embodiment of the present invention
- FIG. 2b is a schematic view of a nozzle according to the second embodiment of the present invention
- FIG. 3 is a schematic view of a nozzle according to a third embodiment of the present invention.
- FIG. 4 is a schematic view of a nozzle according to a fourth embodiment of the present invention.
- FIGS. 1a and 1b are sectional views of a nozzle according to a fifth embodiment of the present invention.
- a nacelle 1 is equipped with a nozzle 2 comprising a pressure regulating device 3 of the pressure of an air flow 4 at the outlet 5 of the nozzle 2.
- ispositif 3 comprises an annular element 6 surrounding the downstream end 7 of the nozzle 2 and at a distance from the nozzle die 2, and means 8 for adjusting the position of the annular element 6 by translation of the annular element 6 along an axis substantially parallel to the axis ⁇ of the nozzle 2.
- the annular element 6 is shaped in such a way that it forms with the downstream end 7 of the nozzle 2 a convergence zone 9a 9a - divergence 9b with regard to an air flow 10 between the annular element 6 and the nozzle 2.
- the means 8 for adjusting the position of the annular element 6 by translation of the annular element 6 are shaped in such a way that the position of the annular element 6 is adjusted continuously ition in the unobtrusive way that is less flexible and does not allow such a fine tuning.
- adjustment means 8 such that there would be a discretized adjustment of the position of the annular element 6.
- the air flow 10 passing through the inlet section 11 in the convergence zone 9a-divergence 9b, undergoes a necking effect, that is to say that the air flow 10 is accelerated to the output section 12 of the convergence zone 9a 9a - divergence 9b.
- the air flow 10 undergoes an increased expansion by the fact that the air flow 4 at the outlet 5 of the nozzle 2 "sucks" the air flow 10 to the adjacent to the outlet section 12, creating a negative pressure at the level of the diverging portion of the zone 9 so that the pressure in this diverging portion is lower than the atmospheric pressure.
- the air flow 4 at the outlet 5 of the nozzle 2 is depressed by passing the outlet 5 of the nozzle 2 and penetrates more easily into the atmosphere.
- the Part of the zone 9 makes it possible to obtain additional thrust force to that already provided by the air flow 4. This configuration makes it possible to reduce the energy consumption by the turbojet engine, and to limit the pumping risks of the turbojet.
- a nacelle 1 is equipped with a nozzle 2 comprising and regulating the pressure of the air flow 4 at the outlet 5 of the nozzle 2.
- Device 3 comprises a plurality of rigid flaps 6a, 6b, 6c forming an annular element 6 surrounding the downstream end 7 of the nozzle 2 in a uniformly distributed manner and at a distance from said nozzle 2, and means 8 for adjusting the position by rotating the rigid flaps each along an axis ⁇ 'tangential to the downstream end 7 of the nozzle 2 and orthogonal to the axis ⁇ of the nozzle 2.
- the rigid flaps 6a, 6b, 6c are shaped so that each form with the downstream end 7 of the nozzle 2 a zone 9 of convergence 9a with respect to an air flow 1 0 between the rigid flap 6a, 6b, 6c and the nozzle 2.
- the means 8 for adjusting the position of the rigid flaps 6a, 6b, 6c by rotation of the rigid flaps 6a, 6b, 6c are shaped in such a way re that the adjustment of the position of the rigid flaps 6a, 6b, 6c is continuous as opposed to the discrete manner which is less flexible and does not allow such a fine adjustment.
- adjustment means 8 such that there would be a discretized adjustment of the position of the flaps 6a, 6b, 6c.
- the air flow 10 through the inlet section 1 1 in the convergence zone 9a, undergoes a necking effect.
- the air flow 10 undergoes an increased expansion by the fact that the air flow 4 at the outlet 5 of the nozzle 2 "sucks" the air flow 10 to the adjacent the outlet section 12, thereby creating a depression so that the downstream pressure in the vicinity of the outlet section 12 is lower than the atmospheric pressure.
- the air flow 4 at the outlet 5 of the nozzle 2 undergoes a depression passing the outlet 5 of the nozzle 2 and penetrates more easily into the atmosphere.
- a nozzle 2 comprises a device 3 for regulating the pressure of an air flow 4 at the outlet 5 of the nozzle 2.
- the device 3 comprises a plurality of air chambers 6a, 6b, 6c forming annular element 6 surrounding the downstream end 7 of the nozzle 2 in a uniformly distributed manner and at a distance from said nozzle 2.
- the inflatable caissons 6a, 6b, 6c are shaped in such a way that their upstream end is fixed without any degree of freedom on the nozzle by a fastening means 8a, that they are deformable under the action of the air flow 1 0, and that each forms with the downstream end 7 of the nozzle 2 a zone 9 of convergence 9a to the the air flow 1 0 between the inflatable chamber 6a, 6b, 6c and the nozzle 2.
- the air flow 1 0 therefore acts as means 8 for adjusting the position of the air chambers.
- the air flow 10 through the inlet section 1 1 in the convergence zone 9a, undergoes a necking effect.
- the air flow 10 undergoes an increased expansion by the fact that the air flow 4 at the outlet 5 of the nozzle 2 "sucks" the air flow 10 to the adjacent the outlet section 12, thereby creating a depression so that the downstream pressure in the vicinity of the outlet section 12 is lower than the atmospheric pressure.
- the air flow 4 at the outlet 5 of the nozzle 2 is depressed by passing the outlet 5 of the nozzle 2 and penetrates more easily into the atmosphere.
- the ratio of the inlet section 1 1 to the outlet section 1 2 of each air box 6a, 6b, 6c, or necking ratio varies, so as to vary the necking effect provoked by the convergence zone 9a 9a of each inflatable box 6a, 6b, 6c.
- each inflatable box 6a, 6b, 6c is substantially identical and adjustable under the action of a compressed air motor (not shown) included in the device 3 for regulating the pressure of an air flow 4 at the outlet 5 of the nozzle 2.
- a compressed air motor included in the device 3 for regulating the pressure of an air flow 4 at the outlet 5 of the nozzle 2.
- a nozzle 2 comprises a device 3 for regulating the pressure of an air flow 4 at the outlet 5 of the nozzle 2 as disclosed in FIGS. 2a and 2b and the description associated therewith, the device 3 comprising here in addition to this mode embodiment of FIGS. 2a and 2b an air injection means 13 making it possible to regulate the flow of air 1 0 entering the zone 9 of convergence 9a according to the embodiment of FIGS. 2a and 2b.
- This air injection means 13 comprises a compressed air motor (not shown) and an outlet orifice for the compressed air in the zone 9 of convergence 9a. Once injected, said compressed air has a variable influence as a function of the pressure at which it is injected into the zone 9 of convergence 9a on the characteristics of the air flow 10.
- a nozzle 2 comprises a device 3 for regulating the pressure of an air flow 4 at the outlet 5 of the nozzle 2 as disclosed in FIGS. 1a and 1b, the annular element 6 having dimensions such that the inlet section 1 1 of the convergent portion of the convergence zone 9a-divergence 9b has an area of a value in the vicinity of or greater than that of the outlet section 5 of the nozzle 2.
- the horn effect is used to increase the thrust during take-off.
- the annular element 6 can be moved by the means 8 to make this effect more modest and substantially find the operating line of the nacelle 1 without annular element 6.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14705821.8A EP2946101A1 (fr) | 2013-01-16 | 2014-01-16 | Tuyère de nacelle à dispositifs de régulation de pression |
| CA2897266A CA2897266A1 (fr) | 2013-01-16 | 2014-01-16 | Tuyere de nacelle a dispositifs de regulation de pression |
| RU2015133708A RU2015133708A (ru) | 2013-01-16 | 2014-01-16 | Сопло гондолы турбореактивного двигателя, оснащенное устройствами регулирования давления |
| CN201480005038.6A CN104937250A (zh) | 2013-01-16 | 2014-01-16 | 具有压力调节设备的机舱喷射管道 |
| BR112015015166A BR112015015166A2 (pt) | 2013-01-16 | 2014-01-16 | bico de saída de corrente secundária de um motor turbojato de desvio e nacela equipada com um bico. |
| US14/797,587 US20160040624A1 (en) | 2013-01-16 | 2015-07-13 | Nacelle jet pipe devices for regulating pressure |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1350375A FR3000994A1 (fr) | 2013-01-16 | 2013-01-16 | Tuyere de nacelle a dispositifs de regulation de pression |
| FR13/50375 | 2013-01-16 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US14/797,587 Continuation US20160040624A1 (en) | 2013-01-16 | 2015-07-13 | Nacelle jet pipe devices for regulating pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014111663A1 true WO2014111663A1 (fr) | 2014-07-24 |
Family
ID=48521135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2014/050087 Ceased WO2014111663A1 (fr) | 2013-01-16 | 2014-01-16 | Tuyère de nacelle à dispositifs de régulation de pression |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20160040624A1 (fr) |
| EP (1) | EP2946101A1 (fr) |
| CN (1) | CN104937250A (fr) |
| BR (1) | BR112015015166A2 (fr) |
| CA (1) | CA2897266A1 (fr) |
| FR (1) | FR3000994A1 (fr) |
| RU (1) | RU2015133708A (fr) |
| WO (1) | WO2014111663A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10081091B2 (en) * | 2015-06-12 | 2018-09-25 | Postech Academy-Industry Foundation | Nozzle, device, and method for high-speed generation of uniform nanoparticles |
| US10252791B2 (en) * | 2016-08-23 | 2019-04-09 | General Electric Company | Deployable assembly for a propulsor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2934889A (en) * | 1956-02-14 | 1960-05-03 | United Aircraft Corp | Noise abatement means |
| US3020712A (en) * | 1959-06-22 | 1962-02-13 | Boeing Co | Reversible-thrust sound suppression jet nozzles with movable ejector rings |
| US3030771A (en) * | 1959-03-02 | 1962-04-24 | United Aircraft Corp | Turbo rocket fuel control system |
| US3333772A (en) * | 1964-04-24 | 1967-08-01 | Aviation Louis Breguet Sa | Discharge nozzle apparatus for jet aircraft |
| WO2008045057A1 (fr) * | 2006-10-12 | 2008-04-17 | United Technologies Corporation | Tuyère à surface de dérivation variable, du type à vessie |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2648192A (en) * | 1949-09-27 | 1953-08-11 | United Aircraft Corp | Variable capacity jet exhaust augmenter |
| DE4222947C2 (de) * | 1992-07-11 | 1995-02-02 | Deutsche Aerospace | Strahltriebwerk |
| US7174704B2 (en) * | 2004-07-23 | 2007-02-13 | General Electric Company | Split shroud exhaust nozzle |
| US8613398B2 (en) * | 2011-06-17 | 2013-12-24 | General Electric Company | Apparatus and methods for linear actuation of flow altering components of jet engine nozzle |
-
2013
- 2013-01-16 FR FR1350375A patent/FR3000994A1/fr not_active Withdrawn
-
2014
- 2014-01-16 CA CA2897266A patent/CA2897266A1/fr not_active Abandoned
- 2014-01-16 CN CN201480005038.6A patent/CN104937250A/zh active Pending
- 2014-01-16 WO PCT/FR2014/050087 patent/WO2014111663A1/fr not_active Ceased
- 2014-01-16 EP EP14705821.8A patent/EP2946101A1/fr not_active Withdrawn
- 2014-01-16 BR BR112015015166A patent/BR112015015166A2/pt not_active IP Right Cessation
- 2014-01-16 RU RU2015133708A patent/RU2015133708A/ru not_active Application Discontinuation
-
2015
- 2015-07-13 US US14/797,587 patent/US20160040624A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2934889A (en) * | 1956-02-14 | 1960-05-03 | United Aircraft Corp | Noise abatement means |
| US3030771A (en) * | 1959-03-02 | 1962-04-24 | United Aircraft Corp | Turbo rocket fuel control system |
| US3020712A (en) * | 1959-06-22 | 1962-02-13 | Boeing Co | Reversible-thrust sound suppression jet nozzles with movable ejector rings |
| US3333772A (en) * | 1964-04-24 | 1967-08-01 | Aviation Louis Breguet Sa | Discharge nozzle apparatus for jet aircraft |
| WO2008045057A1 (fr) * | 2006-10-12 | 2008-04-17 | United Technologies Corporation | Tuyère à surface de dérivation variable, du type à vessie |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112015015166A2 (pt) | 2017-07-11 |
| CN104937250A (zh) | 2015-09-23 |
| RU2015133708A (ru) | 2017-02-22 |
| FR3000994A1 (fr) | 2014-07-18 |
| EP2946101A1 (fr) | 2015-11-25 |
| US20160040624A1 (en) | 2016-02-11 |
| CA2897266A1 (fr) | 2014-07-24 |
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