FR2681644B1 - IMPROVEMENT FOR BLOWERS, PARTICULARLY FOR TURBOREACTORS WITH AT LEAST TWO FLOWS. - Google Patents

IMPROVEMENT FOR BLOWERS, PARTICULARLY FOR TURBOREACTORS WITH AT LEAST TWO FLOWS.

Info

Publication number
FR2681644B1
FR2681644B1 FR9111628A FR9111628A FR2681644B1 FR 2681644 B1 FR2681644 B1 FR 2681644B1 FR 9111628 A FR9111628 A FR 9111628A FR 9111628 A FR9111628 A FR 9111628A FR 2681644 B1 FR2681644 B1 FR 2681644B1
Authority
FR
France
Prior art keywords
turboreactors
blowers
flows
improvement
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
FR9111628A
Other languages
French (fr)
Other versions
FR2681644A1 (en
Inventor
Gerard Fournier
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.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
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 Office National dEtudes et de Recherches Aerospatiales ONERA filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Priority to FR9111628A priority Critical patent/FR2681644B1/en
Publication of FR2681644A1 publication Critical patent/FR2681644A1/en
Application granted granted Critical
Publication of FR2681644B1 publication Critical patent/FR2681644B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • F02C7/045—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for noise suppression
    • 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
    • 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
    • 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
    • F04D29/544—Blade shapes
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR9111628A 1991-09-20 1991-09-20 IMPROVEMENT FOR BLOWERS, PARTICULARLY FOR TURBOREACTORS WITH AT LEAST TWO FLOWS. Expired - Fee Related FR2681644B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9111628A FR2681644B1 (en) 1991-09-20 1991-09-20 IMPROVEMENT FOR BLOWERS, PARTICULARLY FOR TURBOREACTORS WITH AT LEAST TWO FLOWS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9111628A FR2681644B1 (en) 1991-09-20 1991-09-20 IMPROVEMENT FOR BLOWERS, PARTICULARLY FOR TURBOREACTORS WITH AT LEAST TWO FLOWS.

Publications (2)

Publication Number Publication Date
FR2681644A1 FR2681644A1 (en) 1993-03-26
FR2681644B1 true FR2681644B1 (en) 1995-02-24

Family

ID=9417149

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9111628A Expired - Fee Related FR2681644B1 (en) 1991-09-20 1991-09-20 IMPROVEMENT FOR BLOWERS, PARTICULARLY FOR TURBOREACTORS WITH AT LEAST TWO FLOWS.

Country Status (1)

Country Link
FR (1) FR2681644B1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4590227B2 (en) * 2004-08-04 2010-12-01 株式会社日立製作所 Axial flow pump and mixed flow pump
GB2471845A (en) * 2009-07-14 2011-01-19 Rolls Royce Plc Fan outlet guide vane arrangement in a turbofan gas turbine engine
GB201108001D0 (en) 2011-05-13 2011-06-29 Rolls Royce Plc A method of reducing asymmetric fluid flow effect in a passage
ITTO20110728A1 (en) * 2011-08-04 2013-02-05 Avio Spa STATIC PALLETED SEGMENT OF A GAS TURBINE FOR AERONAUTICAL MOTORS
ITTO20120517A1 (en) * 2012-06-14 2013-12-15 Avio Spa AERODYNAMIC PROFILE PLATE FOR A GAS TURBINE SYSTEM
US9581034B2 (en) * 2013-03-14 2017-02-28 Elliott Company Turbomachinery stationary vane arrangement for disk and blade excitation reduction and phase cancellation
GB2516648B (en) * 2013-07-29 2016-08-31 Charles Wells John Fitting for a gas turbine engine
US20160146040A1 (en) * 2014-11-25 2016-05-26 United Technologies Corporation Alternating Vane Asymmetry
FR3092868B1 (en) 2019-02-19 2021-01-22 Safran Aircraft Engines Turbomachine stator wheel comprising blades with different chords
FR3130319B1 (en) * 2021-12-13 2023-11-03 Safran Aircraft Engines Unducted turbomachine comprising stator vanes having different chords
FR3130320B1 (en) * 2021-12-13 2023-11-03 Safran Aircraft Engines Unducted turbomachine comprising stator vanes having different chords

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747343A (en) * 1972-02-10 1973-07-24 United Aircraft Corp Low noise prop-fan

Also Published As

Publication number Publication date
FR2681644A1 (en) 1993-03-26

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20090529