FR3029576B1 - Procede pour reduire le niveau de bruit d'une soufflante de turbomachine - Google Patents
Procede pour reduire le niveau de bruit d'une soufflante de turbomachineInfo
- Publication number
- FR3029576B1 FR3029576B1 FR1461938A FR1461938A FR3029576B1 FR 3029576 B1 FR3029576 B1 FR 3029576B1 FR 1461938 A FR1461938 A FR 1461938A FR 1461938 A FR1461938 A FR 1461938A FR 3029576 B1 FR3029576 B1 FR 3029576B1
- Authority
- FR
- France
- Prior art keywords
- reducing
- noise level
- turbomachine blower
- turbomachine
- blower
- 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
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
- F01D7/00—Rotors with blades adjustable in operation; Control thereof
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
-
- 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
- B64C11/301—Blade pitch-changing mechanisms characterised by blade position indicating means
-
- 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
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- 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
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
-
- 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
- F05D2260/74—Adjusting of angle of incidence or attack of rotating blades by turning around an axis perpendicular the rotor centre 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
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
-
- 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
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1461938A FR3029576B1 (fr) | 2014-12-04 | 2014-12-04 | Procede pour reduire le niveau de bruit d'une soufflante de turbomachine |
US14/958,175 US10054133B2 (en) | 2014-12-04 | 2015-12-03 | Method for reducing the noise level of a turbomachine fan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1461938A FR3029576B1 (fr) | 2014-12-04 | 2014-12-04 | Procede pour reduire le niveau de bruit d'une soufflante de turbomachine |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3029576A1 FR3029576A1 (fr) | 2016-06-10 |
FR3029576B1 true FR3029576B1 (fr) | 2016-12-30 |
Family
ID=52345464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1461938A Active FR3029576B1 (fr) | 2014-12-04 | 2014-12-04 | Procede pour reduire le niveau de bruit d'une soufflante de turbomachine |
Country Status (2)
Country | Link |
---|---|
US (1) | US10054133B2 (fr) |
FR (1) | FR3029576B1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3241743B1 (fr) * | 2016-05-02 | 2018-12-26 | Ratier-Figeac SAS | Commande de pas de pale |
US11286865B2 (en) * | 2018-09-14 | 2022-03-29 | Rolls-Royce North American Technologies Inc. | Gas turbine engine with variable pitch fan and variable pitch compressor geometry |
US11554850B2 (en) * | 2019-04-25 | 2023-01-17 | Pratt & Whitney Canada Corp. | Blade angle position feedback system with offset sensors |
US11834196B2 (en) * | 2019-10-15 | 2023-12-05 | General Electric Company | System and method for control for unducted engine |
TWI790737B (zh) * | 2021-09-06 | 2023-01-21 | 宏碁股份有限公司 | 具散熱和前饋式主動噪音控制功能之電子系統 |
US20230150681A1 (en) * | 2021-11-15 | 2023-05-18 | General Electric Company | Gas turbine engine noise reduction |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3747343A (en) * | 1972-02-10 | 1973-07-24 | United Aircraft Corp | Low noise prop-fan |
US5452988A (en) * | 1994-04-28 | 1995-09-26 | Sundstrand Corporation | Blade pitch change mechanism |
US5966525A (en) * | 1997-04-09 | 1999-10-12 | United Technologies Corporation | Acoustically improved gas turbine blade array |
US6672835B1 (en) * | 2003-05-19 | 2004-01-06 | Arthur C. Hughes | Method and apparatus for self-contained variable pitch and/or constant speed propeller including provisions for feathering and reverse pitch operation |
GB0415844D0 (en) * | 2004-07-15 | 2004-08-18 | Rolls Royce Plc | Noise control |
DE102009007013A1 (de) * | 2009-01-31 | 2010-08-12 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Triebwerk, insbesondere CROR-Antrieb, für ein Flugzeug |
GB201004559D0 (en) * | 2010-03-19 | 2010-05-05 | Rolls Royce Plc | Rotating blade analysis |
DE102012000889A1 (de) * | 2012-01-18 | 2013-07-18 | Rolls-Royce Deutschland Ltd & Co Kg | Fluggasturbine mit justierbarem Fan |
FR2990718B1 (fr) * | 2012-05-16 | 2016-12-09 | Airbus Operations Sas | Helice pour moteur d'aeronef comprenant des moyens de reduction du bruit a moyennes et hautes frequences et amelioration de la perception acoustique. |
-
2014
- 2014-12-04 FR FR1461938A patent/FR3029576B1/fr active Active
-
2015
- 2015-12-03 US US14/958,175 patent/US10054133B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US10054133B2 (en) | 2018-08-21 |
FR3029576A1 (fr) | 2016-06-10 |
US20160160879A1 (en) | 2016-06-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DK3670826T3 (da) | Ekspanderbar brøndmetalrørform | |
FR3029576B1 (fr) | Procede pour reduire le niveau de bruit d'une soufflante de turbomachine | |
FR3036518B1 (fr) | Inversion pour contrainte tectonique | |
DK3587705T3 (da) | Lodret forskalling | |
FR3023049B1 (fr) | Procede pour faciliter l'apporche d'une plateforme | |
FI20155237A (fi) | Laite putken sisäpinnan puhdistamiseksi | |
FR3027452B1 (fr) | Procede de fabrication d'une photodiode a faible bruit | |
DK3200653T3 (da) | Højdejusterbart bord. | |
FI20155704A (fi) | Meren pinta-alus | |
FI20155419A (fi) | Menetelmä vaahdon stabiiliuden lisäämiseksi | |
FR3023015B1 (fr) | Procede pour faciliter l'approche d'une plateforme | |
FR3021993B1 (fr) | Procede de dimensionnement d'une turbomachine | |
FR3019967B1 (fr) | Procede d'ostreiculture ameliore | |
FR3025748B1 (fr) | Ventilateur pour aerorefrigerant. | |
FR3039925B1 (fr) | Procede d'aplanissement d'une plaquette | |
FR3022809B1 (fr) | Procede de nettoyage d'une surface couverte de propergol | |
FR3023635B1 (fr) | Procede de modelisation d'une baignoire d'une aube | |
DK3153758T3 (da) | Dobbeltvægget rørsystem | |
FR3046351B1 (fr) | Chariot- portoir pour brancard. | |
FR3027930B1 (fr) | Profile prolongateur pour la realisation d'une paroi murale, montant telescopique et procede de montage | |
FI11931U1 (fi) | Järjestely vesikaton läpiviennin pellittämiseksi | |
DK3312493T3 (da) | Smøremiddelbeholder | |
FR3054422B1 (fr) | Structure de sommier pour literie | |
FI11601U1 (fi) | Alusaura ajoneuvoa varten | |
FI11381U1 (fi) | Laitteisto porakaivon puhdistamiseksi |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 2 |
|
PLSC | Publication of the preliminary search report |
Effective date: 20160610 |
|
PLFP | Fee payment |
Year of fee payment: 3 |
|
PLFP | Fee payment |
Year of fee payment: 4 |
|
PLFP | Fee payment |
Year of fee payment: 6 |
|
CD | Change of name or company name |
Owner name: SAFRAN AIRCRAFT ENGINES, FR Effective date: 20200304 |
|
PLFP | Fee payment |
Year of fee payment: 7 |
|
PLFP | Fee payment |
Year of fee payment: 8 |
|
PLFP | Fee payment |
Year of fee payment: 9 |
|
PLFP | Fee payment |
Year of fee payment: 10 |