EP4423367A1 - Integration de generatrices dans un flux d'air de reacteur d'avion - Google Patents
Integration de generatrices dans un flux d'air de reacteur d'avionInfo
- Publication number
- EP4423367A1 EP4423367A1 EP22801864.4A EP22801864A EP4423367A1 EP 4423367 A1 EP4423367 A1 EP 4423367A1 EP 22801864 A EP22801864 A EP 22801864A EP 4423367 A1 EP4423367 A1 EP 4423367A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turbomachine
- air flow
- fan
- electrical energy
- secondary 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.)
- Pending
Links
Classifications
-
- 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
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- 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
-
- 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
- B64D41/00—Power installations for auxiliary purposes
- B64D41/007—Ram air turbines
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/30—Wind motors specially adapted for installation in particular locations
- F03D9/32—Wind motors specially adapted for installation in particular locations on moving objects, e.g. vehicles
-
- 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
- B64D2221/00—Electric power distribution systems onboard aircraft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/92—Mounting on supporting structures or systems on an airbourne structure
- F05B2240/923—Mounting on supporting structures or systems on an airbourne structure which is a vehicle
-
- 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
-
- 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
- F05D2220/34—Application in turbines in ram-air turbines ("RATS")
-
- 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
- F05D2220/70—Application in combination with
- F05D2220/76—Application in combination with an electrical generator
-
- 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
- F05D2240/00—Components
- F05D2240/10—Stators
- F05D2240/12—Fluid guiding means, e.g. vanes
-
- 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 present invention relates to the general field of electrical energy generation in an aircraft and more particularly to the generation of electrical energy from an air flow.
- Aircraft's need for electrical energy is increasing and aircraft manufacturers are demanding increasingly high engine performance (electrical supply, engine power, consumption, etc.).
- FR 2 842 565 and FR 3 062 972 thus propose the use of electric generators coupled to a motor shaft or to the rotor of the compressor to produce electric power.
- the production of this electrical power may be interrupted.
- the invention relates to a turbomachine comprising: - a fan arranged along a longitudinal axis of the turbomachine,
- a primary stream capable of conveying a flow of primary air from the fan through a compressor, a combustion chamber and a turbine of the turbomachine
- annular nacelle surrounding the fan so as to delimit a secondary stream capable of conveying a secondary air flow from the fan, the temperature of which is lower than that of the primary air flow from the fan, the secondary air flow from the fan extending around the primary airflow of the fan, and
- the electric power generation device is mounted and driven by the secondary air flow independently of the operation of the engine. This allows electrical generation even in the event of an engine shutdown, such as in the event of free rotation of the engine turbine (“Windmilling”).
- the fact of being placed in the secondary air flow makes it possible to reduce the functional problems of installing the device for generating electrical energy, since the secondary air flow is colder than the primary flow, and the space allocated for its installation is greater in the secondary vein.
- the turbomachine comprises a plurality of electrical energy generation devices mounted opposite or so as to be able to be arranged opposite the support arms in the secondary air flow and driven by the flow secondary air.
- the fact of having a plurality of electrical energy generation devices also allows redundancy in the production of electricity which is particularly useful in the event of failure of one of the devices.
- the devices for generating electrical energy are arranged in rows and/or in columns.
- At least one of the electrical energy generation devices is mounted on a support arm.
- At least one of the electrical energy generation devices is mounted on a support arranged around the longitudinal axis of the turbomachine between the support arms.
- At least one of the electrical energy generation devices mounted on a support arm or on a support arranged around the longitudinal axis of the turbomachine between the engine support arms is arranged facing to the secondary airflow or in the direction of the secondary airflow.
- At least one of the electrical energy generation devices is mounted on the nacelle radially with respect to the longitudinal axis of the turbomachine.
- the devices for generating electrical energy mounted radially on the nacelle are placed between the support arms or upstream of the support arms with respect to the secondary air flow.
- the nacelle comprises at least one cavity in which one of the electrical energy generation devices is mounted.
- a cavity of the nacelle comprises a retractable hatch.
- the retractable hatch makes it possible to block or not the access of the secondary air flow to the electrical energy generation device and thus preserve an effective flow when there is no need to generate electricity from said devices. This makes it possible to improve the operation of the engine, because the energy requirements differ according to the phases of flight: take-off, landing or full flight.
- the cavities of the nacelle are NACA air inlets.
- Another object of the invention relates to an aircraft comprising at least one turbomachine according to the invention.
- FIG. IA represents, schematically and partially, a view of a turbomachine according to one embodiment of the invention.
- Figure IB shows, schematically and partially, a detailed view of the turbomachine of Figure IA.
- Figure 2 shows, schematically and partially, a view of a turbine engine according to another embodiment of the invention.
- FIG. 3A schematically and partially represents a view of a turbomachine according to another embodiment of the invention.
- FIG. 3B schematically and partially represents a detailed view of the turbomachine of FIG. 3A.
- FIG. 4A schematically and partially represents a view of a turbomachine according to another embodiment of the invention.
- FIG. 4B schematically and partially represents a detailed view of the turbomachine of FIG. 4A.
- FIG. 2 schematically and partially represents a turbomachine 200 according to a second embodiment of the invention.
- the turbomachine 200 also includes support arms 250, 251 arranged around the longitudinal axis X of the turbomachine 200 between the nacelle 260 and a hub which delimits the primary and secondary streams.
- the turbomachine 200 comprises several electrical energy generation devices 271, 272, 273, 274. These electrical energy generation devices are mounted in the secondary air flow and driven by this air flow. More specifically, the electrical generation devices 271 to 273 are mounted on the support arm 250 and the electrical generation device 274 on the support arm 251. This makes it possible in particular not to obstruct the flow of air passing through the secondary vein 240.
- FIGS. 3A and 3B schematically and partially represent a turbomachine 300 according to a third embodiment of the invention, FIG. 3B being a detailed view of FIG. 3A.
- the turbomachine 300 comprises a gas turbine engine 310, a fan 320 arranged along a longitudinal axis X of the turbomachine 300, a nacelle 360 annular ring surrounding the engine 310, a primary stream 330 capable of conveying a flow of primary air from the fan 320 and a secondary stream 340 delimited by the nacelle 360 capable of conveying a secondary air stream from the fan 320 having a lower temperature to that of the primary flow.
- the secondary stream extends around the primary stream.
- the turbomachine 300 also includes support arms 350 arranged around the longitudinal axis X of the turbomachine 300 between the nacelle 360 and a hub delimiting the primary and secondary streams.
- the electrical power generation devices can be placed in the nacelle 360 upstream of the support arms 350, that is to say between the fan 320 and the support arms 350 like the device 375, or in front of the arms support 350, or at the same level as the support arms like the device 374.
- the electrical energy generation devices can be arranged facing the support arms or they can be retracted.
- FIGS. 4A and 4B represent, schematically and partially, a turbomachine 400 according to a fourth embodiment of the invention, FIG. 4B being a detailed view of FIG. 4A.
- the turbomachine 400 comprises a gas turbine engine 410, a fan 420 arranged along a longitudinal axis X of the turbomachine 400, an annular nacelle 460 surrounding the engine 110, a primary stream 430 capable of conveying a primary air flow from the fan 420 and a secondary stream 140 delimited by the nacelle 460 able to supplying a secondary air flow from the fan 420 having a lower temperature than that of the primary flow. It also comprises support arms 450 arranged around the longitudinal axis X of the turbomachine 100 between the nacelle 460 and a hub delimiting the primary and secondary streams.
- the turbomachine 400 comprises at least two electrical energy generation devices 471 and 472 mounted in the secondary air flow and driven by this same air flow.
- the electrical energy devices 471 and 472 are mounted on the nacelle 460 radially with respect to the longitudinal axis X of the turbomachine 400. More specifically, the nacelle 460 comprises cavities 470 in which are located at least one power generation device. electrical energy 471.
- the cavity 470 may include a removable hatch 461 so as to close or open the cavity 470 according to electrical energy needs. Thus, in the case where there is no need to produce electrical energy, the cavity 470 can be closed by means of the hatch 461 so that the electrical energy device 471 does not disturb the flow of secondary air. .
- Cavity 470 can also be a NACA type air inlet.
- a NACA-type air intake is a fluid intake whose geometry is optimized to minimize pressure drop and drag.
- the inlet has, for example, a low slope ramp with curved walls towards the interior of the surface exposed to the fluid, therefore here exposed to the secondary air flow. This makes it possible to increase the flow of air collected by the device for generating electrical energy present in this cavity 470 while disturbing the boundary layer at the surface of the nacelle as little as possible.
- the electrical energy generating devices can be blowers or impellers.
- the devices can be impellers.
- the devices may be fans.
- the turbomachine may comprise these devices radially on the nacelle and/or on the engine support arms and/or on supports arranged around the longitudinal axis of the turbomachine between the engine support arms.
- the devices for generating electrical energy can also be staggered together.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2111502A FR3128734A1 (fr) | 2021-10-28 | 2021-10-28 | Intégration de génératrices dans un flux d’air de réacteur d’avion |
| PCT/FR2022/051969 WO2023073305A1 (fr) | 2021-10-28 | 2022-10-18 | Integration de generatrices dans un flux d'air de reacteur d'avion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4423367A1 true EP4423367A1 (fr) | 2024-09-04 |
Family
ID=78827680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22801864.4A Pending EP4423367A1 (fr) | 2021-10-28 | 2022-10-18 | Integration de generatrices dans un flux d'air de reacteur d'avion |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12286887B2 (fr) |
| EP (1) | EP4423367A1 (fr) |
| CN (1) | CN118922617A (fr) |
| FR (1) | FR3128734A1 (fr) |
| WO (1) | WO2023073305A1 (fr) |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9400555D0 (en) * | 1994-01-13 | 1994-03-09 | Short Brothers Plc | Boundery layer control in aerodynamic low drag structures |
| GB9606546D0 (en) * | 1996-03-28 | 1996-06-05 | Rolls Royce Plc | Gas turbine engine system |
| DE10119433C1 (de) * | 2001-04-20 | 2002-08-22 | Liebherr Aerospace Gmbh | Stauluftkanal für eine Flugzeugklimaanlage |
| FR2842565B1 (fr) | 2002-07-17 | 2005-01-28 | Snecma Moteurs | Demarreur-generateur integre pour turbomachine |
| US20050138914A1 (en) * | 2003-04-28 | 2005-06-30 | Marius Paul | Turbo rocket with real carnot cycle |
| US20070022735A1 (en) * | 2005-07-29 | 2007-02-01 | General Electric Company | Pto assembly for a gas turbine engine |
| GB2461057A (en) * | 2008-06-19 | 2009-12-23 | Rolls Royce Plc | Ram air turbine |
| GB0900073D0 (en) * | 2009-01-06 | 2009-02-11 | Rolls Royce Plc | A subsea rotary mount for a tidal-stream turbine |
| GB2471349B (en) * | 2009-11-09 | 2011-06-29 | David John Hicks | Wind turbine |
| US8424800B2 (en) * | 2010-06-23 | 2013-04-23 | Hamilton Sundstrand Corporation | Multi-source emergency power optimization |
| WO2013129954A1 (fr) * | 2012-02-28 | 2013-09-06 | Nenad Paunovic | Dispositifs destinés à la conversion d'énergie cinétique de fluides |
| US9957060B2 (en) * | 2012-03-21 | 2018-05-01 | Hamilton Sundstrand Corporation | Deployable inlet scoop for an inboard ram air turbine |
| US9908635B2 (en) * | 2013-03-15 | 2018-03-06 | Rolls-Royce North American Technologies Inc. | Aircraft system |
| CN105339597B (zh) * | 2013-06-07 | 2017-03-22 | 通用电气航空系统有限责任公司 | 带有发电机的涡轮风扇发动机 |
| US20170321657A1 (en) * | 2016-05-05 | 2017-11-09 | Dustin Clemo | Power generation system utilizing turbine arrays |
| US10465711B2 (en) * | 2016-10-18 | 2019-11-05 | The Boeing Company | Apparatus and methods to deploy a fluid flow channel |
| US11149578B2 (en) * | 2017-02-10 | 2021-10-19 | General Electric Company | Propulsion system for an aircraft |
| FR3062972B1 (fr) | 2017-02-10 | 2021-06-11 | Safran Aircraft Engines | Dispositif de generation d'energie electrique auxiliaire et turbomachine comportant un tel dispositif |
| US11292356B2 (en) * | 2019-06-26 | 2022-04-05 | The Boeing Company | Energy-harvesting spoiler on a wing of an aircraft |
-
2021
- 2021-10-28 FR FR2111502A patent/FR3128734A1/fr active Pending
-
2022
- 2022-10-18 CN CN202280077742.7A patent/CN118922617A/zh active Pending
- 2022-10-18 WO PCT/FR2022/051969 patent/WO2023073305A1/fr not_active Ceased
- 2022-10-18 EP EP22801864.4A patent/EP4423367A1/fr active Pending
- 2022-10-18 US US18/705,309 patent/US12286887B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023073305A1 (fr) | 2023-05-04 |
| US20250003350A1 (en) | 2025-01-02 |
| CN118922617A (zh) | 2024-11-08 |
| FR3128734A1 (fr) | 2023-05-05 |
| US12286887B2 (en) | 2025-04-29 |
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