FR2881794B1 - Turbomachine pourvue d'un moyen de reduction du bruit - Google Patents

Turbomachine pourvue d'un moyen de reduction du bruit

Info

Publication number
FR2881794B1
FR2881794B1 FR0550373A FR0550373A FR2881794B1 FR 2881794 B1 FR2881794 B1 FR 2881794B1 FR 0550373 A FR0550373 A FR 0550373A FR 0550373 A FR0550373 A FR 0550373A FR 2881794 B1 FR2881794 B1 FR 2881794B1
Authority
FR
France
Prior art keywords
turbomachine
noise reduction
reduction means
noise
reduction
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.)
Expired - Fee Related
Application number
FR0550373A
Other languages
English (en)
Other versions
FR2881794A1 (fr
Inventor
Daniel Bernier
Gilles Gerard Claude Lepretre
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
SNECMA Moteurs 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 SNECMA Moteurs SA filed Critical SNECMA Moteurs SA
Priority to FR0550373A priority Critical patent/FR2881794B1/fr
Publication of FR2881794A1 publication Critical patent/FR2881794A1/fr
Application granted granted Critical
Publication of FR2881794B1 publication Critical patent/FR2881794B1/fr
Expired - Fee Related 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
    • 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
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
    • 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
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/08—Heating, heat-insulating or cooling means
    • F01D5/081—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades
    • 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
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/08—Heating, heat-insulating or cooling means
    • F01D5/081—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades
    • F01D5/084—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades the fluid circulating at the periphery of a multistage rotor, e.g. of drum type
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR0550373A 2005-02-09 2005-02-09 Turbomachine pourvue d'un moyen de reduction du bruit Expired - Fee Related FR2881794B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0550373A FR2881794B1 (fr) 2005-02-09 2005-02-09 Turbomachine pourvue d'un moyen de reduction du bruit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0550373A FR2881794B1 (fr) 2005-02-09 2005-02-09 Turbomachine pourvue d'un moyen de reduction du bruit

Publications (2)

Publication Number Publication Date
FR2881794A1 FR2881794A1 (fr) 2006-08-11
FR2881794B1 true FR2881794B1 (fr) 2007-04-20

Family

ID=35005708

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0550373A Expired - Fee Related FR2881794B1 (fr) 2005-02-09 2005-02-09 Turbomachine pourvue d'un moyen de reduction du bruit

Country Status (1)

Country Link
FR (1) FR2881794B1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104153824B (zh) * 2014-07-25 2016-05-04 江苏金通灵流体机械科技股份有限公司 透平多级气封结构
US20170292532A1 (en) * 2016-04-08 2017-10-12 United Technologies Corporation Compressor secondary flow aft cone cooling scheme
US11377957B2 (en) * 2017-05-09 2022-07-05 General Electric Company Gas turbine engine with a diffuser cavity cooled compressor
CN113123999B (zh) * 2021-03-26 2022-01-28 北京航空航天大学 一种分流冷却的航空发动机压气机后轴径锥壁腔
US11674396B2 (en) 2021-07-30 2023-06-13 General Electric Company Cooling air delivery assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3043561A (en) * 1958-12-29 1962-07-10 Gen Electric Turbine rotor ventilation system
DE3037020C2 (de) * 1980-10-01 1983-11-03 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Gasturbinenstrahltriebwerk in Mehrwellen-Bauweise mit Verdichterhochdruckluftentnahme- und -führungseinrichtungen zur Turbinenkühlung
FR2695161B1 (fr) * 1992-08-26 1994-11-04 Snecma Système de refroidissement d'un compresseur de turbomachine et de contrôle des jeux.
US20040235368A1 (en) * 2003-04-14 2004-11-25 Gaetan Lecours Jet pump having unevenly spaced blades

Also Published As

Publication number Publication date
FR2881794A1 (fr) 2006-08-11

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse

Effective date: 20081031