FR3046439B1 - Soufflante a calage variable a faible pas d'un turboreacteur - Google Patents
Soufflante a calage variable a faible pas d'un turboreacteur Download PDFInfo
- Publication number
- FR3046439B1 FR3046439B1 FR1650025A FR1650025A FR3046439B1 FR 3046439 B1 FR3046439 B1 FR 3046439B1 FR 1650025 A FR1650025 A FR 1650025A FR 1650025 A FR1650025 A FR 1650025A FR 3046439 B1 FR3046439 B1 FR 3046439B1
- Authority
- FR
- France
- Prior art keywords
- turboreactor
- low
- blades
- blade
- variable timing
- 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.)
- Active
Links
- 230000005484 gravity Effects 0.000 abstract 2
- 238000007664 blowing Methods 0.000 abstract 1
Classifications
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- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
- F04D29/36—Blade mountings adjustable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/30—Blade pitch-changing mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/30—Blade pitch-changing mechanisms
- B64C11/32—Blade pitch-changing mechanisms mechanical
- B64C11/325—Blade pitch-changing mechanisms mechanical comprising feathering, braking or stopping systems
-
- 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
- F01D7/00—Rotors with blades adjustable in operation; Control thereof
- F01D7/02—Rotors with blades adjustable in operation; Control thereof having adjustment responsive to speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
- F02K3/02—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber
- F02K3/04—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type
- F02K3/06—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type with front fan
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
- F04D29/322—Blade mountings
- F04D29/323—Blade mountings adjustable
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
- F04D29/36—Blade mountings adjustable
- F04D29/362—Blade mountings adjustable during rotation
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
- F04D29/36—Blade mountings adjustable
- F04D29/362—Blade mountings adjustable during rotation
- F04D29/366—Adjustment by interaction of inertion and lift
-
- 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
- F05D2220/36—Application in turbines specially adapted for the fan of turbofan 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
- F05D2250/00—Geometry
- F05D2250/30—Arrangement of components
- F05D2250/31—Arrangement of components according to the direction of their main axis or their axis of rotation
- F05D2250/311—Arrangement of components according to the direction of their main axis or their axis of rotation the axes being in line
-
- 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
- F05D2260/00—Function
- F05D2260/40—Transmission of power
- F05D2260/403—Transmission of power through the shape of the drive components
- F05D2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
- F05D2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclical, planetary or differential type
-
- 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
- F05D2260/00—Function
- F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
- F05D2260/71—Adjusting of angle of incidence or attack of rotating blades as a function of flow velocity
-
- 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
- F05D2260/00—Function
- F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
- F05D2260/79—Bearing, support or actuation arrangements therefor
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
L'invention concerne une soufflante (2) d'une turbomachine (1), ladite soufflante (2) comprenant : - un disque de soufflante pourvu de pales (22) à sa périphérie, lesdites pales (22) étant montées à pivotement sur le disque autour d'un axe de pivotement (Y) et présentant un centre de gravité (G), et - un mécanisme de changement de pas desdites pales (22), chaque pale (22) étant configurée de sorte que son centre de gravité (G) est positionné sur ou à faible distance d'un plan fictif (P) qui passe par l'axe.de pivotement (Y) de ladite pale (22) et qui est perpendiculaire à l'axe de révolution (X) de la soufflante lorsque la pale (22) est dans une position de moindre trainée.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1650025A FR3046439B1 (fr) | 2016-01-05 | 2016-01-05 | Soufflante a calage variable a faible pas d'un turboreacteur |
US15/398,133 US10316857B2 (en) | 2016-01-05 | 2017-01-04 | Variable-pitch fan with low pitch of a turbine engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1650025 | 2016-01-05 | ||
FR1650025A FR3046439B1 (fr) | 2016-01-05 | 2016-01-05 | Soufflante a calage variable a faible pas d'un turboreacteur |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3046439A1 FR3046439A1 (fr) | 2017-07-07 |
FR3046439B1 true FR3046439B1 (fr) | 2019-01-25 |
Family
ID=55486906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1650025A Active FR3046439B1 (fr) | 2016-01-05 | 2016-01-05 | Soufflante a calage variable a faible pas d'un turboreacteur |
Country Status (2)
Country | Link |
---|---|
US (1) | US10316857B2 (fr) |
FR (1) | FR3046439B1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016114910A1 (de) * | 2015-09-08 | 2017-03-09 | Flexxaire Inc. | Schaufel für ein Verstellschaufelgebläse |
US10830066B2 (en) * | 2016-01-05 | 2020-11-10 | Safran Aircraft Engines | Low-pitch variable-setting fan of a turbine engine |
CN112696381B (zh) * | 2020-12-31 | 2023-04-18 | 高峰 | 一种高效轴流风机叶轮 |
EP4148250A1 (fr) * | 2021-09-08 | 2023-03-15 | Rolls-Royce plc | Moteur à turbine à gaz améliorée |
EP4148263A1 (fr) | 2021-09-08 | 2023-03-15 | Rolls-Royce plc | Moteur à turbine à gaz amélioré |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2030953A (en) * | 1934-02-14 | 1936-02-18 | Earle D Crammond | Automatic variable pitch propeller |
US2219303A (en) * | 1936-09-15 | 1940-10-29 | Jean Alfred Roche | Propeller |
US5299914A (en) * | 1991-09-11 | 1994-04-05 | General Electric Company | Staggered fan blade assembly for a turbofan engine |
FR2908451B1 (fr) * | 2006-11-09 | 2009-03-20 | Snecma Sa | Turbopropulseur comportant un ensemble de pales a orientation reglable |
US9885313B2 (en) * | 2009-03-17 | 2018-02-06 | United Technologes Corporation | Gas turbine engine bifurcation located fan variable area nozzle |
US9920625B2 (en) * | 2011-01-13 | 2018-03-20 | Siemens Energy, Inc. | Turbine blade with laterally biased airfoil and platform centers of mass |
US9879561B2 (en) * | 2012-08-09 | 2018-01-30 | Snecma | Turbomachine comprising a plurality of fixed radial blades mounted upstream of the fan |
US9303589B2 (en) * | 2012-11-28 | 2016-04-05 | Pratt & Whitney Canada Corp. | Low hub-to-tip ratio fan for a turbofan gas turbine engine |
FR3002781B1 (fr) * | 2013-03-01 | 2017-06-23 | Snecma | Aubage a calage variable |
FR3006988B1 (fr) | 2013-06-17 | 2015-07-03 | Snecma | Pivot de pale d'helice aerienne en forme de calotte spherique |
US9869190B2 (en) * | 2014-05-30 | 2018-01-16 | General Electric Company | Variable-pitch rotor with remote counterweights |
US10724541B2 (en) * | 2015-12-31 | 2020-07-28 | United Technologies Corporation | Nacelle short inlet |
-
2016
- 2016-01-05 FR FR1650025A patent/FR3046439B1/fr active Active
-
2017
- 2017-01-04 US US15/398,133 patent/US10316857B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
FR3046439A1 (fr) | 2017-07-07 |
US20170191495A1 (en) | 2017-07-06 |
US10316857B2 (en) | 2019-06-11 |
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Legal Events
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PLFP | Fee payment |
Year of fee payment: 2 |
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PLSC | Publication of the preliminary search report |
Effective date: 20170707 |
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PLFP | Fee payment |
Year of fee payment: 3 |
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CD | Change of name or company name |
Owner name: SAFRAN AIRCRAFT ENGINES, FR Effective date: 20180809 |
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Year of fee payment: 5 |
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