BE1026810A1 - Contouring dynamique - Google Patents

Contouring dynamique Download PDF

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Publication number
BE1026810A1
BE1026810A1 BE20185834A BE201805834A BE1026810A1 BE 1026810 A1 BE1026810 A1 BE 1026810A1 BE 20185834 A BE20185834 A BE 20185834A BE 201805834 A BE201805834 A BE 201805834A BE 1026810 A1 BE1026810 A1 BE 1026810A1
Authority
BE
Belgium
Prior art keywords
ferrule
contouring
protuberance
bump
actuators
Prior art date
Application number
BE20185834A
Other languages
English (en)
Other versions
BE1026810B1 (fr
Inventor
Rafael Perez
Original Assignee
Safran Aero Boosters Sa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Safran Aero Boosters Sa filed Critical Safran Aero Boosters Sa
Priority to BE20185834A priority Critical patent/BE1026810B1/fr
Publication of BE1026810A1 publication Critical patent/BE1026810A1/fr
Application granted granted Critical
Publication of BE1026810B1 publication Critical patent/BE1026810B1/fr

Links

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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially 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
    • F01D17/02—Arrangement of sensing elements
    • F01D17/08—Arrangement of sensing elements responsive to condition of working-fluid, e.g. pressure
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F01D5/142—Shape, i.e. outer, aerodynamic form of the blades of successive rotor or stator blade-rows
    • F01D5/143—Contour of the outer or inner working fluid flow path wall, i.e. shroud or hub contour
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F01D5/145—Means for influencing boundary layers or secondary circulations
    • 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
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
    • 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
    • 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
    • F05D2260/50—Kinematic linkage, i.e. transmission of position
    • F05D2260/56—Kinematic linkage, i.e. transmission of position using cams or eccentrics
    • 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
    • F05D2260/50—Kinematic linkage, i.e. transmission of position
    • F05D2260/57—Kinematic linkage, i.e. transmission of position using servos, independent actuators, etc.
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/501—Elasticity
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Geometry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention a pour objet un ensemble ou un compresseur basse-pression pour turboréacteur. Une virole (32) supportant des aubes (26) présente une surface (34) généralement axisymétrique et des moyens (42, 44) permettant de dynamiquement pourvoir la virole (32) d'une protubérance - aussi appelée contouring. La protubérance peut prendre la forme d'une pluralité d'aiguilles (50) mises en saillie de la surface (34) par des actionneurs (42). Les actionneurs (42) peuvent également déformer directement la virole (32) pour créer une bosse. Enfin la virole (32) peut comprendre une réduction d'épaisseur résultant en une dilatation inhomogène faisant apparaître une bosse. L'invention a également pour objet un procédé de contrôle d'un contouring lors du fonctionnement du turboréacteur, le contouring étant amovible en fonction par exemple de la détection d'un décollement du flux d'air.
BE20185834A 2018-11-28 2018-11-28 Contouring dynamique BE1026810B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE20185834A BE1026810B1 (fr) 2018-11-28 2018-11-28 Contouring dynamique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE20185834A BE1026810B1 (fr) 2018-11-28 2018-11-28 Contouring dynamique

Publications (2)

Publication Number Publication Date
BE1026810A1 true BE1026810A1 (fr) 2020-06-22
BE1026810B1 BE1026810B1 (fr) 2020-07-01

Family

ID=64606685

Family Applications (1)

Application Number Title Priority Date Filing Date
BE20185834A BE1026810B1 (fr) 2018-11-28 2018-11-28 Contouring dynamique

Country Status (1)

Country Link
BE (1) BE1026810B1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3011888A1 (fr) 2013-10-11 2015-04-17 Snecma Piece de turbomachine a surface non-axisymetrique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01219397A (ja) * 1988-02-26 1989-09-01 Hitachi Ltd 遠心圧縮機のディフューザ
GB9018457D0 (en) * 1990-08-22 1990-10-03 Rolls Royce Plc Flow control means
EP0772744B1 (fr) * 1994-07-28 2001-10-04 The Boeing Company Controle actif du bruit sonore dans des conduits d'un moteur
US8500399B2 (en) * 2006-04-25 2013-08-06 Rolls-Royce Corporation Method and apparatus for enhancing compressor performance
DE102006057063B3 (de) * 2006-11-28 2008-07-31 Deutsches Zentrum für Luft- und Raumfahrt e.V. Stator-Stufe eines Axialverdichters einer Strömungsmaschine mit Querlamellen zur Wirkungsgradsteigerung
US8408491B2 (en) * 2007-04-24 2013-04-02 United Technologies Corporation Nacelle assembly having inlet airfoil for a gas turbine engine
US20130255796A1 (en) * 2012-03-30 2013-10-03 General Electric Company Flow-control device, component having a flow-control device, and method of producing a flow-control device
WO2015023325A1 (fr) * 2013-08-12 2015-02-19 United Technologies Corporation Trajectoire de flux de ventilateur non axisymétrique

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3011888A1 (fr) 2013-10-11 2015-04-17 Snecma Piece de turbomachine a surface non-axisymetrique

Also Published As

Publication number Publication date
BE1026810B1 (fr) 2020-07-01

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Effective date: 20200701