EP1489267A1 - Dispositif de calage variable de deux étages d'aubes fixé sur un turboréacteur - Google Patents
Dispositif de calage variable de deux étages d'aubes fixé sur un turboréacteur Download PDFInfo
- Publication number
- EP1489267A1 EP1489267A1 EP04102806A EP04102806A EP1489267A1 EP 1489267 A1 EP1489267 A1 EP 1489267A1 EP 04102806 A EP04102806 A EP 04102806A EP 04102806 A EP04102806 A EP 04102806A EP 1489267 A1 EP1489267 A1 EP 1489267A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- groove
- synchronization
- stages
- horn
- rod
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 description 2
- 241000256856 Vespidae Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/563—Fluid-guiding means, e.g. diffusers adjustable specially adapted for elastic fluid pumps
-
- 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
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
- F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0246—Surge control by varying geometry within the pumps, e.g. by adjusting vanes
Definitions
- the invention relates to a device for variable setting of two stator stages on a turbojet.
- the circular stages of blades mounted on the stator of turbojet engines are often calibrated variable, that is to say that the blades are capable of rotate around their axis to vary the flow correction features they impose on gases.
- the adjustment device is mounted at outside the housing and includes a mechanism actuator as well as a transmission mechanism to paddle pivots.
- a mechanism actuator as well as a transmission mechanism to paddle pivots.
- the way actuator is connected to the ring through a transmission that may include a bar of synchronization from the cylinder rod, a connecting rod articulated to the ring and a puppet joining the bar of synchronization to the control rod of the ring and articulated to them.
- the horns are pivoting parts around a central axis and equipped with two branches forming an angle, one of which is connected to the bar of synchronization and the other to the control rod.
- the cylinder movement moves the synchronization bar, which turns the horn.
- the movement is communicated to the connecting rod, which pulls or pushes on the ring synchronization and rotate it around the housing, by finally tipping the control levers of pivoting of the blades.
- US 3,083,892 A discloses a device where the cylinder rod is connected to a cam it turns.
- the cam carries a groove in which is engaged a pin of a rod used for the control of the synchronization ring. It is so possible to impose nonlinear control laws, sinusoidal for example, between the cylinder rod and the synchronization ring.
- a single blade stage is controlled by the aforementioned means of the rotating cam and by a few others that have nothing to do with the invention.
- the rotating cam is added only for obtain the nonlinear control law. She should probably have a large area to accommodate a groove allowing irregular control laws or large amplitude.
- the different order of two blade stages by a single actuator means is not resolved by this patent.
- the rotating cam looks like shape to a puppet, and the adaptation of a groove and a ergot y sliding in an existing puppet would disadvantageous for controlling several stages at a time, the increase in the area of the horns being problematic because of their proximity to the crankcase.
- the important efforts to develop in the guignol discourage weakening it by a groove long.
- the invention relates to a device allowing a calibration with nonlinear and different laws several stages of blades at a time by a device also different from that of the aforementioned prior art.
- variable setting device of two stages of stator vanes, arranged on a housing and comprising an actuating mechanism and, for each of floors, a pivoting horn on an axle of the housing and a stage control rod connected to a branch of the horn, a synchronization bar being connected to another branch of at least one of the horns for driving it, characterized in that one of the bars synchronization is connected to the housing by a link with groove and sliding pin in the groove, and the horn that it leads by a link with groove and pin sliding in the groove.
- a turbojet casing bears the reference 1; blades (only one of which is shown) 2 are mounted indoors on external pivots 3 passing through the housing 1 and on internal pivots not shown and united by a ring link ; each of the blades 2 is adjusted by the device that will now be described.
- levers 4 mounted on the outer pivots 3, synchronization rings 5 each associated with a floor blades 2, extending next to them and to which the ends of the levers 4 are mounted so rotary, control rods 6 which are screw turnbuckles and which extend tangentially to rings 5, and as shown in Figure 2, horns 7 and 8 to which the ends of the rods 6 opposed to synchronization rings 5 are mounted rotatively, a synchronization bar 9 and a cylinder 10 having a rod 11 actuating one of the horns 7 and whose body is mounted on a casing 12 of the casing 1, pivotally about a pin 13.
- the synchronization bar 9 unites two branches 15 and 16 horns 7 and 8 being hinged thereto, said branches 15 and 16 being opposed to branches 17 and 18 to which the connecting rods 6 are articulated; the guignol 7 still includes a branch 19 to which the rod 11 is hinged to control the movement of the whole mechanism.
- the horns 7 and 8 are rotatably mounted on the housing 12, around axes 20 and 21 parallel to each other.
- the movements of the rod 11 cause a rotation of the horn 7, and another of the horn 8 by the synchronization bar 9; the rotations of the horns 7 and 8 move in turn the rods 6, the rings 5, the levers 4 and the blades 2 by rotating them of the desired quantity, the control law depending in particular lengths and angles of the branches 15, 16, 17 and 18.
- the bar of synchronization 9 is lined with a pin 22 which penetrates in a groove 23 dug in the housing 12. From more, a second groove 26 is operated in the second guignol 8 to receive a lug 27 at the end of the synchronization bar 9.
- the direction of the synchronization bar 9 is imposed on all deployment positions of the rod 11 of the cylinder 10 by the groove 23.
- the angles of rotation of horns 7 and 8 vary in values different.
- the groove 23 has a shape and a direction determined to give the desired control law for the blade stage associated with the second horn. is important to note that thanks to the length of lever provided by the synchronization bar 9, of small gaps in the groove 23 can produce large angle variations of the second hornet 8.
- the second groove 26 has the function of restoring isostaticity of the mechanism while contributing to define the control law. A second groove 26 short, not extending the second horn 8, will be often enough.
- Figures 3a, 3b and 3c illustrate a situation where the end pin 27 of the bar synchronization 9 is close to the same end of the second groove 26 at the extreme positions of the rod 11 of the cylinder 10 (in Figures 3a 3c), while it is close of the opposite end of the second groove 26 for a average deployment of the rod 11 ( Figure 3b).
- the control law generally depends on a many factors, mainly directions and shapes of the grooves 23 and 26 and their positions with respect to horns 7 and 8. In the example considered here, we can distinguish two stages of the movement.
- the first groove 23 is first roughly parallel to the path of the point of articulation of the synchronization bar 9 to first horn 7, so that the bar of synchronization 9 lowers without much change inclination; but the direction of the second groove induces a greater rotation of the second horn 8 than that of the first horn 7 as the pin 27 moves in the second groove 26.
- the invention could be implemented in other situations, and especially to order a greater number of blade stages. She would be then implemented in a number of bars synchronization. These synchronization bars could, according to existing arrangements, be to be successive, that is to say to connect the horns neighbors and extend in a chain, ie be parallel and extend to a common puppet or even up to the actuator element itself. This is without consequence for the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Turbines (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
- la figure 1 illustre le mécanisme ;
- la figure 2 est une vue de détail ; et
- les figures 3a, 3b et 3c illustrent une loi de commande possible.
Claims (1)
- Dispositif de calage variable de deux étages d'aubes (2) de stator, disposé sur un carter (1) et comprenant un mécanisme actionneur et, pour chacun des étages, un guignol (7, 8) pivotant sur un axe (20, 21) du carter, et une bielle (6) de commande de l'étage reliée à une branche du guignol, une barre de synchronisation (9) étant reliée à une autre branche d'un au moins des guignols pour l'entraíner, caractérisé en ce que la barre de synchronisation est reliée au carter par une liaison à rainure (23) et ergot (22) coulissant dans la rainure, et au guignol qu'elle entraíne par une autre liaison à rainure (26) et ergot (27) coulissant dans la rainure.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0350237 | 2003-06-20 | ||
FR0350237A FR2856424B1 (fr) | 2003-06-20 | 2003-06-20 | Dispositif de calage variable de deux etages d'aubes fixes sur un turboreacteur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1489267A1 true EP1489267A1 (fr) | 2004-12-22 |
EP1489267B1 EP1489267B1 (fr) | 2006-12-20 |
Family
ID=33396882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04102806A Expired - Lifetime EP1489267B1 (fr) | 2003-06-20 | 2004-06-18 | Dispositif de calage variable de deux étages d'aubes fixé sur un turboréacteur |
Country Status (7)
Country | Link |
---|---|
US (1) | US7037070B2 (fr) |
EP (1) | EP1489267B1 (fr) |
JP (1) | JP4050252B2 (fr) |
CA (1) | CA2470081C (fr) |
DE (1) | DE602004003744T2 (fr) |
FR (1) | FR2856424B1 (fr) |
RU (1) | RU2338932C2 (fr) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1724472A2 (fr) * | 2005-05-17 | 2006-11-22 | Snecma | Système de commande d'étages d'aubes de stator à angle de calage variable de turbomachine |
EP1808579A2 (fr) * | 2006-01-17 | 2007-07-18 | General Electric Company | Système d'actionnement pour aubes de stator variables |
WO2010031768A2 (fr) * | 2008-09-18 | 2010-03-25 | Siemens Aktiengesellschaft | Procédé, système et dispositif pour aubes directrices variables |
FR2982653A1 (fr) * | 2011-11-14 | 2013-05-17 | Snecma | Systeme de transmission a arbre cannele. |
EP2258926A3 (fr) * | 2009-05-01 | 2015-01-14 | Rolls-Royce plc | Mécanisme de contrôle |
WO2016034816A1 (fr) * | 2014-09-05 | 2016-03-10 | Snecma | Mécanisme d'entraînement d'organes de réglage de l'orientation des pales |
WO2016207513A1 (fr) | 2015-06-25 | 2016-12-29 | Safran Aircraft Engines | Système de commande d'aubes à calage variable pour une turbomachine |
WO2017203158A1 (fr) | 2016-05-25 | 2017-11-30 | Safran Aircraft Engines | Dispositif de commande d'elements a calage variable dans une turbomachine |
FR3133214A1 (fr) | 2022-03-03 | 2023-09-08 | Safran Aircraft Engines | Systeme ameliore de commande d’aubes de redresseurs d’un compresseur pour turbomachine d’aeronef |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2885968B1 (fr) | 2005-05-17 | 2007-08-10 | Snecma Moteurs Sa | Systeme de commande d'etages d'aubes de stator a angle de calage variable de turbomachine |
DE102007011990B4 (de) * | 2007-03-09 | 2019-01-10 | Tlt-Turbo Gmbh | Vorrichtung zum hydraulischen Verstellen der Laufschaufeln eines Laufrades eines Axialventilators |
US8727697B2 (en) * | 2010-03-27 | 2014-05-20 | Rolls-Royce Corporation | Variable vane actuation system and method |
RU2465465C2 (ru) * | 2010-08-05 | 2012-10-27 | Закрытое акционерное общество "Уральский турбинный завод" | Механизм поворота направляющих лопаток |
IT1401664B1 (it) * | 2010-08-31 | 2013-08-02 | Nuova Pignone S R L | Dispositivo di centraggio e sistema per anello di guida. |
US9039355B2 (en) * | 2012-05-31 | 2015-05-26 | United Technologies Corporation | Actuator mounted to torque box |
US20140010637A1 (en) * | 2012-07-05 | 2014-01-09 | United Technologies Corporation | Torque box and linkage design |
US20140064911A1 (en) * | 2012-08-29 | 2014-03-06 | General Electric Company | Systems and Methods to Control Variable Stator Vanes in Gas Turbine Engines |
US20140205424A1 (en) * | 2012-08-29 | 2014-07-24 | General Electric Company | Systems and Methods to Control Variable Stator Vanes in Gas Turbine Engines |
DE102012021876A1 (de) | 2012-11-07 | 2014-05-22 | Rolls-Royce Deutschland Ltd & Co Kg | Leitschaufelverstellvorrichtung einer Gasturbine |
US10161407B2 (en) | 2013-06-14 | 2018-12-25 | United Technologies Corporation | Radial fastening of tubular synchronizing rings |
KR101549470B1 (ko) * | 2014-01-29 | 2015-09-03 | 국방과학연구소 | 가변 입구 안내익과 가변 정익의 구동장치 |
FR3031772B1 (fr) * | 2015-01-19 | 2017-01-13 | Snecma | Systeme de commande d’aubes a calage variable pour une turbomachine |
FR3033007B1 (fr) * | 2015-02-19 | 2018-07-13 | Safran Aircraft Engines | Dispositif pour le reglage individuel d'une pluralite d'aubes radiales fixes a calage variable dans une turbomachine |
US9885314B2 (en) * | 2015-03-02 | 2018-02-06 | The Boeing Company | Dual-cam bellcrank mechanism |
DE102015004649A1 (de) * | 2015-04-15 | 2016-10-20 | Man Diesel & Turbo Se | Leitschaufelverstellvorrichtung und Strömungsmaschine |
US10415596B2 (en) * | 2016-03-24 | 2019-09-17 | United Technologies Corporation | Electric actuation for variable vanes |
US10502091B2 (en) | 2016-12-12 | 2019-12-10 | United Technologies Corporation | Sync ring assembly and associated clevis including a rib |
US10815818B2 (en) * | 2017-07-18 | 2020-10-27 | Raytheon Technologies Corporation | Variable-pitch vane assembly |
GB201717091D0 (en) * | 2017-10-18 | 2017-11-29 | Rolls Royce Plc | A variable vane actuation arrangement |
FR3076325B1 (fr) * | 2017-12-29 | 2019-11-29 | Safran Aircraft Engines | Dispositif de calage variable d'au moins deux rangees annulaires d'aubes fixes pour une turbomachine |
US10662804B2 (en) * | 2018-02-28 | 2020-05-26 | United Technologies Corporation | Profiled bellcrank vane actuation system |
DE102018217435B4 (de) * | 2018-10-11 | 2021-04-01 | Rolls-Royce Deutschland Ltd & Co Kg | Verstelleinrichtung mit wenigstens einer Führungseinrichtung für die Verstellung mehrerer Leitschaufeln eines Triebwerks |
FR3100272A1 (fr) | 2019-08-27 | 2021-03-05 | Safran Aircraft Engines | Guignol pour un dispositif de calage variable d’une turbomachine |
FR3100273B1 (fr) | 2019-08-27 | 2021-10-15 | Safran Aircraft Engines | Guignol pour un dispositif de calage variable d’une turbomachine |
FR3107319B1 (fr) * | 2020-02-19 | 2022-08-12 | Safran Aircraft Engines | Module de turbomachine equipe de systeme de changement de pas des pales d’aubes de stator |
FR3121952B1 (fr) | 2021-04-20 | 2023-04-28 | Safran Aircraft Engines | Systeme a guignol pour un dispositif de calage variable d’une turbomachine |
US20220341342A1 (en) * | 2021-04-21 | 2022-10-27 | General Electric Company | Variable vane apparatus |
US11560810B1 (en) * | 2021-07-20 | 2023-01-24 | Rolls-Royce North American Technologies Inc. | Variable vane actuation system and method for gas turbine engine performance management |
DE102021123772A1 (de) * | 2021-09-14 | 2023-03-16 | MTU Aero Engines AG | Verstellanordnung für verstellschaufeln einer strömungsmaschine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2924375A (en) * | 1955-05-18 | 1960-02-09 | Gen Electric | Positioning device |
US3066488A (en) * | 1959-11-04 | 1962-12-04 | Bendix Corp | Power output control for a gas turbine engine |
US4403912A (en) * | 1981-03-23 | 1983-09-13 | Avco Corporation | Integrated multiplane actuator system for compressor variable vanes and air bleed valve |
US5044879A (en) * | 1989-01-25 | 1991-09-03 | Rolls-Royce Plc | Variable stator vane arrangement for an axial flow compressor |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3083892A (en) * | 1956-11-01 | 1963-04-02 | Havilland Engine Co Ltd | Control of variable pitch stator blades or vanes in axial flow machines |
US3873230A (en) * | 1974-04-10 | 1975-03-25 | United Aircraft Corp | Stator vane actuating mechanism |
US5190439A (en) * | 1991-07-15 | 1993-03-02 | United Technologies Corporation | Variable vane non-linear schedule for a gas turbine engine |
FR2739137B1 (fr) * | 1995-09-27 | 1997-10-31 | Snecma | Dispositif de commande d'un etage d'aubes a calage variable |
US6092984A (en) * | 1998-12-18 | 2000-07-25 | General Electric Company | System life for continuously operating engines |
-
2003
- 2003-06-20 FR FR0350237A patent/FR2856424B1/fr not_active Expired - Fee Related
-
2004
- 2004-06-18 EP EP04102806A patent/EP1489267B1/fr not_active Expired - Lifetime
- 2004-06-18 US US10/870,050 patent/US7037070B2/en not_active Expired - Lifetime
- 2004-06-18 CA CA2470081A patent/CA2470081C/fr not_active Expired - Lifetime
- 2004-06-18 JP JP2004180840A patent/JP4050252B2/ja not_active Expired - Lifetime
- 2004-06-18 DE DE602004003744T patent/DE602004003744T2/de not_active Expired - Lifetime
- 2004-06-18 RU RU2004118678/06A patent/RU2338932C2/ru active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2924375A (en) * | 1955-05-18 | 1960-02-09 | Gen Electric | Positioning device |
US3066488A (en) * | 1959-11-04 | 1962-12-04 | Bendix Corp | Power output control for a gas turbine engine |
US4403912A (en) * | 1981-03-23 | 1983-09-13 | Avco Corporation | Integrated multiplane actuator system for compressor variable vanes and air bleed valve |
US5044879A (en) * | 1989-01-25 | 1991-09-03 | Rolls-Royce Plc | Variable stator vane arrangement for an axial flow compressor |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2885969A1 (fr) * | 2005-05-17 | 2006-11-24 | Snecma Moteurs Sa | Systeme de commande d'etages d'aubes de stator a angle de calage variable de turbomachine |
US7322790B2 (en) | 2005-05-17 | 2008-01-29 | Snecma | System for controlling stages of variable-pitch stator vanes in a turbomachine |
EP1724472A3 (fr) * | 2005-05-17 | 2009-01-21 | Snecma | Système de commande d'étages d'aubes de stator à angle de calage variable de turbomachine |
EP1724472A2 (fr) * | 2005-05-17 | 2006-11-22 | Snecma | Système de commande d'étages d'aubes de stator à angle de calage variable de turbomachine |
EP1808579A3 (fr) * | 2006-01-17 | 2013-11-20 | General Electric Company | Système d'actionnement pour aubes de stator variables |
EP1808579A2 (fr) * | 2006-01-17 | 2007-07-18 | General Electric Company | Système d'actionnement pour aubes de stator variables |
US9890655B2 (en) | 2008-09-18 | 2018-02-13 | Siemens Aktiengesellschaft | Adjusting device for variable guide vanes and method of operation |
WO2010031768A2 (fr) * | 2008-09-18 | 2010-03-25 | Siemens Aktiengesellschaft | Procédé, système et dispositif pour aubes directrices variables |
WO2010031768A3 (fr) * | 2008-09-18 | 2011-02-10 | Siemens Aktiengesellschaft | Procédé, système et dispositif pour aubes directrices variables |
RU2509897C2 (ru) * | 2008-09-18 | 2014-03-20 | Сименс Акциенгезелльшафт | Регулировочное устройство направляющих лопаток осевого компрессора, система поворотных направляющих лопаток осевого компрессора и способ регулирования направляющих лопаток осевого компрессора |
CN102159794A (zh) * | 2008-09-18 | 2011-08-17 | 西门子公司 | 用于可变导向叶片的方法、系统和装置 |
EP2258926A3 (fr) * | 2009-05-01 | 2015-01-14 | Rolls-Royce plc | Mécanisme de contrôle |
FR2982653A1 (fr) * | 2011-11-14 | 2013-05-17 | Snecma | Systeme de transmission a arbre cannele. |
US10502088B2 (en) | 2014-09-05 | 2019-12-10 | Safran Aircraft Engines | Mechanism for driving members for adjusting the orientation of blades |
RU2705529C2 (ru) * | 2014-09-05 | 2019-11-07 | Сафран Эркрафт Энджинз | Приводной механизм и турбомашина летательного аппарата, содержащая такой механизм |
FR3025577A1 (fr) * | 2014-09-05 | 2016-03-11 | Snecma | Mecanisme d'entrainement d'organes de reglage de l'orientation des pales |
WO2016034816A1 (fr) * | 2014-09-05 | 2016-03-10 | Snecma | Mécanisme d'entraînement d'organes de réglage de l'orientation des pales |
FR3038018A1 (fr) * | 2015-06-25 | 2016-12-30 | Snecma | Systeme de commande d'aubes a calage variable pour une turbomachine |
US10648359B2 (en) | 2015-06-25 | 2020-05-12 | Safran Aircraft Engines | System for controlling variable-setting blades for a turbine engine |
WO2016207513A1 (fr) | 2015-06-25 | 2016-12-29 | Safran Aircraft Engines | Système de commande d'aubes à calage variable pour une turbomachine |
CN107771250A (zh) * | 2015-06-25 | 2018-03-06 | 赛峰飞机发动机公司 | 用于涡轮发动机的用于控制可调设置叶片的系统 |
FR3051826A1 (fr) * | 2016-05-25 | 2017-12-01 | Snecma | Dispositif de commande d'elements a calage variable dans une turbomachine |
GB2565699A (en) * | 2016-05-25 | 2019-02-20 | Safran Aircraft Engines | Device for controlling variable-pitch members in a turbomachine |
WO2017203158A1 (fr) | 2016-05-25 | 2017-11-30 | Safran Aircraft Engines | Dispositif de commande d'elements a calage variable dans une turbomachine |
US10837308B2 (en) | 2016-05-25 | 2020-11-17 | Safran Aircraft Engines | Device for controlling variable-pitch members in a turbomachine |
GB2565699B (en) * | 2016-05-25 | 2021-09-01 | Safran Aircraft Engines | Device for controlling variable-pitch members in a turbomachine |
FR3133214A1 (fr) | 2022-03-03 | 2023-09-08 | Safran Aircraft Engines | Systeme ameliore de commande d’aubes de redresseurs d’un compresseur pour turbomachine d’aeronef |
Also Published As
Publication number | Publication date |
---|---|
FR2856424A1 (fr) | 2004-12-24 |
FR2856424B1 (fr) | 2005-09-23 |
CA2470081C (fr) | 2011-08-02 |
US7037070B2 (en) | 2006-05-02 |
US20050129510A1 (en) | 2005-06-16 |
DE602004003744T2 (de) | 2007-10-11 |
EP1489267B1 (fr) | 2006-12-20 |
RU2004118678A (ru) | 2006-01-10 |
RU2338932C2 (ru) | 2008-11-20 |
JP4050252B2 (ja) | 2008-02-20 |
JP2005009497A (ja) | 2005-01-13 |
DE602004003744D1 (de) | 2007-02-01 |
CA2470081A1 (fr) | 2004-12-20 |
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