FR3064298B1 - TURBOMACHINE - Google Patents

TURBOMACHINE Download PDF

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Publication number
FR3064298B1
FR3064298B1 FR1752430A FR1752430A FR3064298B1 FR 3064298 B1 FR3064298 B1 FR 3064298B1 FR 1752430 A FR1752430 A FR 1752430A FR 1752430 A FR1752430 A FR 1752430A FR 3064298 B1 FR3064298 B1 FR 3064298B1
Authority
FR
France
Prior art keywords
casing
main
reference surface
respect
turbomachine
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
Application number
FR1752430A
Other languages
French (fr)
Other versions
FR3064298A1 (en
Inventor
Damien Joseph Cellier
Ghislain Maxime Romuald Madiot
Vianney Christophe Marie Maniere
Frederic Jean-Bernard Pouzadoux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Aircraft Engines SAS
Original Assignee
Safran Aircraft Engines SAS
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 Aircraft Engines SAS filed Critical Safran Aircraft Engines SAS
Priority to FR1752430A priority Critical patent/FR3064298B1/en
Publication of FR3064298A1 publication Critical patent/FR3064298A1/en
Application granted granted Critical
Publication of FR3064298B1 publication Critical patent/FR3064298B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F01D25/162—Bearing supports
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • 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
    • F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
    • 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
    • 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
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • F05D2260/961—Preventing, counteracting or reducing vibration or noise by mistuning rotor blades or stator vanes with irregular interblade spacing, airfoil shape

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Turbomachine comprenant un redresseur (60) disposé entre un carter intérieur (52) et un carter extérieur (54), ces carters (52,54) étant reliés par au moins un bras principal de liaison (72A,72B). Une surface de référence (S) est définie par rapport à un premier des carters (52,54) comme une surface de révolution constituant un modèle approché de la surface du premier carter en contact avec le fluide. Par rapport à cette surface de référence, la surface du premier carter présente, au moins pour un premier bras principal de liaison (72A,72B), une dépression principale (D2A,D2B) : - s'étendant radialement du côté du premier carter par rapport à la surface de référence (S) au moins jusqu'à 5% de l'étendue radiale des aubes ; et - s'étendant circonférentiellement sur une plage (02) d'amplitude de 20° à 120° qui inclut la position circonférentielle dudit premier bras principal de liaison (72A,72B).Turbomachine comprising a rectifier (60) arranged between an inner casing (52) and an outer casing (54), these casings (52,54) being connected by at least one main link arm (72A, 72B). A reference surface (S) is defined with respect to a first of the housings (52,54) as a surface of revolution constituting an approximate model of the surface of the first housing in contact with the fluid. With respect to this reference surface, the surface of the first casing has, at least for a first main connecting arm (72A, 72B), a main depression (D2A, D2B): - extending radially on the side of the first casing by relative to the reference surface (S) at least up to 5% of the radial extent of the blades; and - extending circumferentially over a range (02) of amplitude of 20 ° to 120 ° which includes the circumferential position of said first main link arm (72A, 72B).

FR1752430A 2017-03-23 2017-03-23 TURBOMACHINE Active FR3064298B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1752430A FR3064298B1 (en) 2017-03-23 2017-03-23 TURBOMACHINE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1752430A FR3064298B1 (en) 2017-03-23 2017-03-23 TURBOMACHINE
FR1752430 2017-03-23

Publications (2)

Publication Number Publication Date
FR3064298A1 FR3064298A1 (en) 2018-09-28
FR3064298B1 true FR3064298B1 (en) 2021-04-30

Family

ID=59253662

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1752430A Active FR3064298B1 (en) 2017-03-23 2017-03-23 TURBOMACHINE

Country Status (1)

Country Link
FR (1) FR3064298B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3108937B1 (en) * 2020-04-01 2023-03-24 Safran Aircraft Engines Intermediate turbomachine casing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009011924A1 (en) * 2009-03-10 2010-09-16 Rolls-Royce Deutschland Ltd & Co Kg Bypass duct of a turbofan engine
KR101509364B1 (en) * 2010-12-24 2015-04-07 미츠비시 히타치 파워 시스템즈 가부시키가이샤 Flow path structure and gas turbine exhaust diffuser
US8678740B2 (en) * 2011-02-07 2014-03-25 United Technologies Corporation Turbomachine flow path having circumferentially varying outer periphery
US9512740B2 (en) * 2013-11-22 2016-12-06 Siemens Energy, Inc. Industrial gas turbine exhaust system with area ruled exhaust path

Also Published As

Publication number Publication date
FR3064298A1 (en) 2018-09-28

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