FR2893357B1 - Lechette annulaire destinee a un labyrinthe d'etancheite et son procede de fabrication - Google Patents

Lechette annulaire destinee a un labyrinthe d'etancheite et son procede de fabrication

Info

Publication number
FR2893357B1
FR2893357B1 FR0511576A FR0511576A FR2893357B1 FR 2893357 B1 FR2893357 B1 FR 2893357B1 FR 0511576 A FR0511576 A FR 0511576A FR 0511576 A FR0511576 A FR 0511576A FR 2893357 B1 FR2893357 B1 FR 2893357B1
Authority
FR
France
Prior art keywords
manufacturing
same
sealing labyrinth
annular letter
letter
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
FR0511576A
Other languages
English (en)
Other versions
FR2893357A1 (fr
Inventor
Claude Mons
Joel Vigneau
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 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 SNECMA SAS filed Critical SNECMA SAS
Priority to FR0511576A priority Critical patent/FR2893357B1/fr
Publication of FR2893357A1 publication Critical patent/FR2893357A1/fr
Application granted granted Critical
Publication of FR2893357B1 publication Critical patent/FR2893357B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
    • B23H9/10—Working turbine blades or nozzles
    • 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
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • 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
    • F02C7/28—Arrangement of seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • F16J15/445—Free-space packings with means for adjusting the clearance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • F16J15/447—Labyrinth packings
    • F16J15/4472—Labyrinth packings with axial path
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/10—Manufacture by removing material
    • F05D2230/11—Manufacture by removing material by electrochemical methods
    • 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/18—Two-dimensional patterned
    • F05D2250/181—Two-dimensional patterned ridged
    • 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/18—Two-dimensional patterned
    • F05D2250/183—Two-dimensional patterned zigzag
    • 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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
FR0511576A 2005-11-15 2005-11-15 Lechette annulaire destinee a un labyrinthe d'etancheite et son procede de fabrication Active FR2893357B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0511576A FR2893357B1 (fr) 2005-11-15 2005-11-15 Lechette annulaire destinee a un labyrinthe d'etancheite et son procede de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0511576A FR2893357B1 (fr) 2005-11-15 2005-11-15 Lechette annulaire destinee a un labyrinthe d'etancheite et son procede de fabrication

Publications (2)

Publication Number Publication Date
FR2893357A1 FR2893357A1 (fr) 2007-05-18
FR2893357B1 true FR2893357B1 (fr) 2011-05-06

Family

ID=36773861

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0511576A Active FR2893357B1 (fr) 2005-11-15 2005-11-15 Lechette annulaire destinee a un labyrinthe d'etancheite et son procede de fabrication

Country Status (1)

Country Link
FR (1) FR2893357B1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4696147B2 (ja) * 2008-06-30 2011-06-08 株式会社日立製作所 ターボ機械
US8529736B2 (en) 2010-05-25 2013-09-10 General Electric Company System and method for metal cutting
FR2974842B1 (fr) * 2011-05-05 2015-07-03 Snecma Joint d'etancheite dans une turbomachine, comprenant des lechettes mobiles devant de l'abradable
CN103047418A (zh) * 2013-01-18 2013-04-17 沈阳航空航天大学 一种新型高稳定错位三气楔密封结构
FR3072121B1 (fr) * 2017-10-06 2021-07-30 Safran Aircraft Engines Dispositif d'etancheite entre rotor et stator de turbomachine
FR3094395B1 (fr) * 2019-04-01 2022-07-15 Safran Aircraft Engines turbine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE474361C (de) * 1926-11-07 1929-03-30 Bergmann Elek Citaets Werke Ak Einrichtung zur Abdichtung umlaufender Teile, insbesondere der Wellen von Dampf- oder Gasturbinen
JPS5590229A (en) * 1978-12-12 1980-07-08 Toshiba Corp Electrochemical machining method for turbine blade wheel
US4772372A (en) * 1987-05-13 1988-09-20 General Electric Company Electrodes for electrochemically machining airfoil blades
DE19933445C2 (de) * 1999-07-16 2001-12-13 Mtu Aero Engines Gmbh Dichtring für nicht- hermetische Fluiddichtungen
DE10047307A1 (de) * 2000-09-25 2002-08-01 Alstom Switzerland Ltd Dichtungsanordnung

Also Published As

Publication number Publication date
FR2893357A1 (fr) 2007-05-18

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