WO2012089956A1 - Dispositif de suspension d'un turboreacteur - Google Patents
Dispositif de suspension d'un turboreacteur Download PDFInfo
- Publication number
- WO2012089956A1 WO2012089956A1 PCT/FR2011/053066 FR2011053066W WO2012089956A1 WO 2012089956 A1 WO2012089956 A1 WO 2012089956A1 FR 2011053066 W FR2011053066 W FR 2011053066W WO 2012089956 A1 WO2012089956 A1 WO 2012089956A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- axis
- support
- branches
- pylon
- turbojet engine
- Prior art date
Links
- 239000000725 suspension Substances 0.000 claims description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
- F02C7/20—Mounting or supporting of plant; Accommodating heat expansion or creep
-
- 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
- B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
- B64D27/02—Aircraft characterised by the type or position of power plants
- B64D27/16—Aircraft characterised by the type or position of power plants of jet type
- B64D27/18—Aircraft characterised by the type or position of power plants of jet type within, or attached to, wings
-
- 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
- B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
- B64D27/40—Arrangements for mounting power plants in aircraft
- B64D27/406—Suspension arrangements specially adapted for supporting thrust loads, e.g. thrust links
-
- 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
- Y02T50/40—Weight reduction
Definitions
- the invention relates to a suspension device of a turbojet, particularly under the wing and more particularly relates to an improvement of a fastener between the turbojet engine and the linkage pylon to the structure of the aircraft.
- a fastener of this kind called median is more particularly intended for thrust recovery.
- Such a fastener is for example arranged between a front fastener connected to the fan casing and a rear attachment connected to the outer shell of the exhaust casing.
- a turbofan engine as described, for example in FR 2 925 016, the incoming air is compressed by the fan rotor and then divided into two streams called primary and secondary, cylindrical and coaxial.
- the secondary flow bypasses the engine itself and is ejected downstream to provide much of the thrust.
- the primary flow is compressed before reaching the combustion chamber where it mixes with the fuel. The mixture ignites to produce the hot gases which feed successive stages of turbines driving the compressors and the blower.
- the primary flow is also ejected at the center of the cold air vein to provide some of the thrust.
- the ratio of flow rates between secondary flow and primary flow is called the dilution ratio.
- the ratio of the diameters between the fan casing and that of the engine casing is an important parameter for obtaining a high dilution ratio.
- Such a turbojet engine is fixed by a support structure called pylon, for example under the wing.
- turbojet When one seeks to increase the dilution ratio, it is necessary to define a turbojet in which the fan takes a very important place. To be able to install such a turbojet engine of very large diameter, it is necessary to bring the axis of the turbojet engine to the structure that carries it (typically the wing). Consequently, the space available for the pylon and the fixing of the fasteners to it is reduced.
- the aforementioned prior document notably describes a so-called “total protection” isostatic median attachment capable of preventing separation of the turbojet engine from its pylon.
- This central attachment comprises in particular two connecting rods arranged symmetrically on either side of a vertical median plane between the hub of the front casing and the rear attachment or directly on the pylon, in the vicinity of this rear attachment.
- the spreader has a transverse width such that it also allows hinged connections, with play, at the ends, with lateral extensions of the base.
- hinged connections with play, at the ends, with lateral extensions of the base.
- one of the existing games between one of the extensions and the rudder is consumed.
- the forces are redistributed and then pass through the remaining link. If the break occurs at the central connection between the lifter and the base, the two extensions resume efforts. This is how a so-called “total protection" fastener is made, since the breaking of any element results in a new distribution of the force paths, preventing the total breakage of the fastener.
- the invention aims to remedy all these problems.
- the invention relates first of all to a device for suspending an aircraft turbojet engine in which said turbojet engine is connected to a pylon fixed to the structure of the aircraft by articulated link links, each connecting said pylon to a housing of said turbojet, characterized in that such a fastener comprises a shaft support fixed to said pylon and comprising three spaced branches provided with passages through which said axis, said axis support being fixed to said pylon so that said axis is oriented generally parallel to a tangential direction of said casing, in that said axis is articulated by ball joint to the central branch of said support, in that it traverses with play the two other branches and in that two links above are arranged symmetrically with respect to a median plane of said support and hingedly connected to said housing and said axis.
- the support of the axis can be simplified and its cost can be lowered by adopting a simple modular structure, said support being formed by the side-by-side assembly of three identical parts. or substantially identical, materializing the three branches mentioned above.
- each link is directly articulated to said axis. It can be directly connected by ball joint to this axis.
- said ball joint of the link to said axis is located in the vicinity of a corresponding end of this axis and the other side of one of said two other branches relative to said central branch of said support.
- said two other branches which do not normally interact with the elements of the fastener, since a predetermined clearance is defined between their bores and the axis of the rudder, makes it possible to obtain the necessary redundancy for the resumption of efforts in case of breakage of an element of the fastener.
- the master torque is reduced compared to the known solution.
- the width of the fastener is reduced, which, in the case of the central fastener, reduces the drag in the fresh air duct of the fan.
- the fairings surrounding the fastener in the vein are also compact. This increases the section of the secondary flow and therefore the yield. Finally, the mass of the fastening system is decreased.
- the principle of the invention applies in particular to the middle attachment but it can be transposed to the other fasteners, front and / or rear.
- FIG. 1 is a schematic elevational view of a turbojet connected to a pylon secured to the aircraft, for example mounted under a wing;
- FIG. 2 is a detail view in perspective of a constituent element of the support of the fastener, intended to be fixed to the pylon;
- FIG. 3 is a detail view of the fastener, the side of the tower.
- FIG 1 there is shown a turbojet 11 attached to a tower 13 itself attached to the aircraft, here under a wing, not shown.
- the turbojet engine is attached to the pylon by three fasteners.
- a front clip 15 comprises two rods 16 spaced from each other, diverging and articulated at their ends. They are connected between the front of the pylon 13 and the outer shell 17 of the fan casing.
- a rear attachment 19 also comprises two links 21 articulated between the pylon 13 and the exhaust casing 23.
- a median clip 25 extends between the two front and rear fasteners.
- the central fastener 25 comprises two links 30A, 30B connected between the pylon 13 and a turbojet engine housing, more particularly here the hub 32 of an intermediate housing arranged inside the fan shroud and supporting the front central part of the engine. turbojet.
- the invention is here more particularly described with reference to the structure of the central fastener.
- This median attachment 25 is dedicated to the resumption of thrust forces.
- the rods 30A, 30B are biased in tension in normal operation of the turbojet engine and in compression in the case of a thrust reversing operation of said turbojet engine.
- this so-called median fastener 25 comprises an axle support 37 fixed to the pylon 13 and to which an axle axis 39 is hinged.
- This support comprises three branches 40, 41, 42 spaced provided with aligned passages 46 traversed by said axis 39.
- Said axis support 37 is fixed to said pylon so that the axis 39 is oriented generally parallel to a tangential direction of said housing and perpendicular to the motor axis X.
- this axis 39 is articulated by ball joint 47 to the central branch 40 of the support 37. It passes with clearance the other two branches 41, 42.
- the two links 30A, 30B above are arranged symmetrically with respect to a median plane P of the support (passing through the central branch) and hingedly connected by their respective ends to said housing (the hub 32) and to said axis 39.
- each link 30A, 30B is directly connected by a ball joint 45A, 45B to the ends of the axis 39, that is to say outside the passages defined in the two branches 41 42.
- the support 37 is defined from three pieces 50, here strictly identical, joined to each other, each piece (illustrated in Figure 2) defining a branch above, thanks to a thinning 51 thereof.
- the three contiguous parts are fixed to the pylon 13 so that the axis 39 extends substantially horizontally and transversely to the axis X of the engine, therefore parallel to a tangential direction of the turbojet engine.
- each piece has two holes 54 for the passage of bolts and a hole 55 for positioning, by means of a pawn secured to the pylon.
- the three parts 50 are bolted side by side on the pylon so that said branches are oriented substantially radially to the turbojet engine.
- the three pieces 50 may further be bolted together transversely to these holes.
- the two passages 46 of the two branches 41, 42 located on either side of the central branch 40 are bores receiving bushings 57. These bushings are of selected thickness and are mounted in the bores to determine the desired clearance between the axis 39 and each of these branches 41, 42.
- the adjustment of the game is done by adapting the sleeves. The thicker the bushings, the lower the game.
- each ball 45A 45B is immobilized in the vicinity of a corresponding end of the axis 39 and on the other side of one of said two other branches 41, 42, with respect to said central branch 40 of said support 37.
- the axis 39 is advantageously composed of a tube 60 comprising two sections of different diameters which define a shoulder 61 in the central portion.
- This shoulder 61 forms a first stop for positioning the ball joint 47 of the central branch through which the axis 39 articulates with respect to the support 37.
- the smaller diameter section is covered with a sleeve 63 forming a second stop for the positioning of said ball of the central branch.
- the tube 60, said ball 47 and said sleeve 63 are held together by axial bolting 65 passing through said tube 60.
- the end of the larger diameter portion of the tube also comprises a shoulder 67 for positioning the ball 45A associated with one of the rods.
- the ball 45B of the other rod is positioned in abutment against the end of the sleeve on the one hand and against a ring 68 on the other hand. All this assembly is stabilized by axial bolting 60.
- the invention is transposable to other fasteners than said median fastener.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/976,243 US9664112B2 (en) | 2010-12-27 | 2011-12-20 | Device for suspending a turbojet engine |
RU2013135254/11A RU2585368C2 (ru) | 2010-12-27 | 2011-12-20 | Устройство для подвески турбореактивного двигателя |
BR112013015196-0A BR112013015196B1 (pt) | 2010-12-27 | 2011-12-20 | dispositivo de suspensão de um turborreator |
EP11817403.6A EP2658779B1 (fr) | 2010-12-27 | 2011-12-20 | Dispositif de suspension d'un turboreacteur |
CN201180061475.6A CN103339029B (zh) | 2010-12-27 | 2011-12-20 | 用于悬挂涡轮喷气发动机的装置 |
CA2822537A CA2822537C (fr) | 2010-12-27 | 2011-12-20 | Dispositif de suspension d'un turboreacteur |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1061281 | 2010-12-27 | ||
FR1061281A FR2969578B1 (fr) | 2010-12-27 | 2010-12-27 | Dispositif de suspension d'un turboreacteur |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012089956A1 true WO2012089956A1 (fr) | 2012-07-05 |
Family
ID=44342915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2011/053066 WO2012089956A1 (fr) | 2010-12-27 | 2011-12-20 | Dispositif de suspension d'un turboreacteur |
Country Status (8)
Country | Link |
---|---|
US (1) | US9664112B2 (fr) |
EP (1) | EP2658779B1 (fr) |
CN (1) | CN103339029B (fr) |
BR (1) | BR112013015196B1 (fr) |
CA (1) | CA2822537C (fr) |
FR (1) | FR2969578B1 (fr) |
RU (1) | RU2585368C2 (fr) |
WO (1) | WO2012089956A1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3014414B1 (fr) * | 2013-12-11 | 2017-08-11 | Airbus Operations Sas | Partie de voilure d'aeronef comportant un support de fixation d'un dispositif de raccordement monte en translation |
CN105173093B (zh) * | 2015-09-24 | 2018-01-30 | 江西洪都航空工业集团有限责任公司 | 一种悬挂快卸式安装节 |
FR3041996B1 (fr) * | 2015-10-05 | 2017-10-27 | Snecma | Systeme de suspension de deux modules d'un ensemble propulsif |
US20210284348A1 (en) * | 2016-08-08 | 2021-09-16 | Lord Corporation | Mounting systems, devices, and methods for aircraft engines |
WO2018102183A1 (fr) * | 2016-12-03 | 2018-06-07 | Ge Aviation Systems Llc | Système de palier sphérique |
US10197213B2 (en) * | 2017-01-26 | 2019-02-05 | General Electric Company | Systems and methods for mounting a rotatable machine |
US10723471B2 (en) * | 2017-06-14 | 2020-07-28 | General Electric Company | Method and system for mounting an aircraft engine |
FR3079212B1 (fr) * | 2018-03-26 | 2020-09-11 | Airbus Operations Sas | Ensemble de motorisation pour un aeronef |
FR3100530B1 (fr) * | 2019-09-11 | 2021-07-30 | Airbus Operations Sas | Ensemble de motorisation d’aéronef comprenant un dispositif de reprise d’efforts de poussée |
FR3115528A1 (fr) * | 2020-10-27 | 2022-04-29 | Airbus Operations | Architecture de mât haubané pour accrocher un moteur à un aéronef |
FR3127202A1 (fr) * | 2021-09-20 | 2023-03-24 | Airbus Operations (S.A.S.) | Ensemble de motorisation d’aéronef comprenant un dispositif de reprise d’efforts de poussée |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060280551A1 (en) * | 2003-05-16 | 2006-12-14 | Pineiros Victor M | Solid shank pawl pin with redundant locking system |
FR2920178A1 (fr) * | 2007-08-20 | 2009-02-27 | Aircelle Sa | Dispositif de liaison, destine a relier un premier et un second elements articules l'un par rapport a l'autre |
FR2925016A1 (fr) | 2007-12-12 | 2009-06-19 | Snecma Sa | Suspension d'un turboreacteur a un aeronef |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3844115A (en) * | 1973-02-14 | 1974-10-29 | Gen Electric | Load distributing thrust mount |
GB1521847A (en) * | 1976-04-30 | 1978-08-16 | Rolls Royce | Attachment for attaching jet propulsion engines to vehicle structure |
US5927644A (en) * | 1997-10-08 | 1999-07-27 | General Electric Company | Double failsafe engine mount |
FR2828167B1 (fr) * | 2001-07-31 | 2003-11-21 | Airbus France | Dispositif d'accrochage d'un moteur sur un aeronef |
US7093996B2 (en) * | 2003-04-30 | 2006-08-22 | General Electric Company | Methods and apparatus for mounting a gas turbine engine |
FR2901243B1 (fr) * | 2006-05-16 | 2008-06-27 | Airbus France Sas | Dispositif d'accrochage d'un moteur d'aeronef |
FR2903382B1 (fr) * | 2006-07-10 | 2008-10-10 | Airbus France Sas | Dispositif d'accrochage d'un moteur d'aeronef comportant deux bielles de reprise de poussee a emboitement transversal |
FR2920138B1 (fr) * | 2007-08-24 | 2010-03-12 | Airbus France | Dispositif d'accrochage de moteur d'aeronef comportant un dispositif de reprise des efforts de poussee a encombrement reduit |
FR2920409B1 (fr) * | 2007-08-27 | 2009-12-18 | Airbus France | Berceau de support de capot de soufflante monte sur le mat d'accrochage et sur l'entree d'air de la nacelle |
FR2926788B1 (fr) * | 2008-01-25 | 2010-04-02 | Snecma | Fixation d'un turboreacteur multiflux a un aeronef |
FR2965549B1 (fr) * | 2010-10-01 | 2013-07-05 | Airbus Operations Sas | Dispositif de reprise de poussee a bielles pour mat d'accrochage d'un moteur d'aeronef, integrant trois rotules alignees |
-
2010
- 2010-12-27 FR FR1061281A patent/FR2969578B1/fr not_active Expired - Fee Related
-
2011
- 2011-12-20 CA CA2822537A patent/CA2822537C/fr active Active
- 2011-12-20 US US13/976,243 patent/US9664112B2/en active Active
- 2011-12-20 BR BR112013015196-0A patent/BR112013015196B1/pt active IP Right Grant
- 2011-12-20 RU RU2013135254/11A patent/RU2585368C2/ru active
- 2011-12-20 CN CN201180061475.6A patent/CN103339029B/zh active Active
- 2011-12-20 EP EP11817403.6A patent/EP2658779B1/fr active Active
- 2011-12-20 WO PCT/FR2011/053066 patent/WO2012089956A1/fr active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060280551A1 (en) * | 2003-05-16 | 2006-12-14 | Pineiros Victor M | Solid shank pawl pin with redundant locking system |
FR2920178A1 (fr) * | 2007-08-20 | 2009-02-27 | Aircelle Sa | Dispositif de liaison, destine a relier un premier et un second elements articules l'un par rapport a l'autre |
FR2925016A1 (fr) | 2007-12-12 | 2009-06-19 | Snecma Sa | Suspension d'un turboreacteur a un aeronef |
Also Published As
Publication number | Publication date |
---|---|
EP2658779B1 (fr) | 2014-10-22 |
BR112013015196A2 (pt) | 2016-09-13 |
RU2585368C2 (ru) | 2016-05-27 |
EP2658779A1 (fr) | 2013-11-06 |
CA2822537C (fr) | 2018-12-04 |
FR2969578A1 (fr) | 2012-06-29 |
US9664112B2 (en) | 2017-05-30 |
CN103339029B (zh) | 2016-02-03 |
CN103339029A (zh) | 2013-10-02 |
RU2013135254A (ru) | 2015-02-10 |
CA2822537A1 (fr) | 2012-07-05 |
BR112013015196B1 (pt) | 2020-12-22 |
US20130327058A1 (en) | 2013-12-12 |
FR2969578B1 (fr) | 2013-02-08 |
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