FR3094395B1 - turbine - Google Patents

turbine Download PDF

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Publication number
FR3094395B1
FR3094395B1 FR1903466A FR1903466A FR3094395B1 FR 3094395 B1 FR3094395 B1 FR 3094395B1 FR 1903466 A FR1903466 A FR 1903466A FR 1903466 A FR1903466 A FR 1903466A FR 3094395 B1 FR3094395 B1 FR 3094395B1
Authority
FR
France
Prior art keywords
peaks
annular wiper
radially
turbine
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
FR1903466A
Other languages
French (fr)
Other versions
FR3094395A1 (en
Inventor
Mickael Rancic
Franck Robert Drouet
Damien Norbert Edgar Hebuterne
Aurélien René-Pierre Massot
Mathieu Charles Jean Verdiere
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 FR1903466A priority Critical patent/FR3094395B1/en
Publication of FR3094395A1 publication Critical patent/FR3094395A1/en
Application granted granted Critical
Publication of FR3094395B1 publication Critical patent/FR3094395B1/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
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • 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
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part
    • 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
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part
    • F01D11/122—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part with erodable or abradable material
    • 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
    • F01D5/20—Specially-shaped blade tips to seal space between tips and stator
    • 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
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L’invention concerne un dispositif d’étanchéité dynamique pour turbomachine comprenant au moins une léchette annulaire (30) dont le pourtour externe est agencée en vis-à-vis radial d’un anneau abradable (28) présentant une surface ayant en section une forme sensiblement circulaire, ladite léchette annulaire (30) présentant un profil périphérique radialement externe comprenant une pluralité de sommets (32) en saillie, respectivement radialement vers l’extérieur relativement à des portions de jonction (34, 36) desdits sommets. Figure à publier avec l’abrégé : Figure 4The invention relates to a dynamic sealing device for a turbomachine comprising at least one annular wiper (30), the outer periphery of which is arranged radially opposite an abradable ring (28) having a surface having in section a shape substantially circular, said annular wiper (30) having a radially outer peripheral profile comprising a plurality of peaks (32) projecting, respectively radially outwards relative to junction portions (34, 36) of said peaks. Figure to be published with abstract: Figure 4

FR1903466A 2019-04-01 2019-04-01 turbine Active FR3094395B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1903466A FR3094395B1 (en) 2019-04-01 2019-04-01 turbine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1903466A FR3094395B1 (en) 2019-04-01 2019-04-01 turbine
FR1903466 2019-04-01

Publications (2)

Publication Number Publication Date
FR3094395A1 FR3094395A1 (en) 2020-10-02
FR3094395B1 true FR3094395B1 (en) 2022-07-15

Family

ID=67742643

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1903466A Active FR3094395B1 (en) 2019-04-01 2019-04-01 turbine

Country Status (1)

Country Link
FR (1) FR3094395B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2893358A1 (en) * 2005-11-15 2007-05-18 Snecma Sa THERMOMECHANICAL PIECE OF TURBOMACHINE FOR REVOLUTION AROUND A LONGITUDINAL AXIS, COMPRISING AN ANNULAR LECHETTE, AND METHOD FOR MANUFACTURING THE SAME
FR2893357B1 (en) * 2005-11-15 2011-05-06 Snecma ANNULAR LETTER FOR SEALING LABYRINTH AND METHOD OF MANUFACTURING THE SAME
DE102015217670A1 (en) * 2015-09-15 2017-03-16 Rolls-Royce Deutschland Ltd & Co Kg Sealing element, sealing system with a sealing element, turbomachine with a sealing system and method for producing a sealing element

Also Published As

Publication number Publication date
FR3094395A1 (en) 2020-10-02

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