FR3104198B1 - Agencement de limitation de survitesse d’une turbine - Google Patents

Agencement de limitation de survitesse d’une turbine Download PDF

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Publication number
FR3104198B1
FR3104198B1 FR1913743A FR1913743A FR3104198B1 FR 3104198 B1 FR3104198 B1 FR 3104198B1 FR 1913743 A FR1913743 A FR 1913743A FR 1913743 A FR1913743 A FR 1913743A FR 3104198 B1 FR3104198 B1 FR 3104198B1
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France
Prior art keywords
wiper
carrying
friction face
downstream
upstream
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Active
Application number
FR1913743A
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English (en)
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FR3104198A1 (fr
Inventor
Marc-Antoine Anatole Got
Sylvain Romain Réal Brault
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
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Safran Aircraft Engines SAS
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Publication date
Application filed by Safran Aircraft Engines SAS filed Critical Safran Aircraft Engines SAS
Priority to FR1913743A priority Critical patent/FR3104198B1/fr
Publication of FR3104198A1 publication Critical patent/FR3104198A1/fr
Application granted granted Critical
Publication of FR3104198B1 publication Critical patent/FR3104198B1/fr
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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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/006—Arrangements of brakes
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
    • F01D21/045—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position special arrangements in stators or in rotors dealing with breaking-off of part of 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
    • F01D5/12—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
    • 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
    • F05D2270/00—Control
    • F05D2270/01—Purpose of the control system
    • F05D2270/02—Purpose of the control system to control rotational speed (n)
    • F05D2270/021—Purpose of the control system to control rotational speed (n) to prevent overspeed
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Control Of Turbines (AREA)

Abstract

L’invention concerne un limiteur de survitesse de turbine de turbomachine, cette turbine comprenant un disque tournant autour d’un axe longitudinal (AX) et portant des aubes rotatives (11), et un distributeur (13) portant des aubes fixes (12), chaque aube rotative (11) comportant une extrémité libre terminée par un talon (19) portant au moins une léchette (23), chaque aube directrice (12) comportant une plateforme (29) radialement externe par laquelle elle est solidarisée à un élément de carter (9). Chaque plateforme (29) a une extrémité amont comportant une face de frottement (36) située en vis-à-vis de la léchette (23), la léchette (23) venant en appui sur la face de frottement (36) en cas de déplacement vers l’aval (AV) du disque tournant. La face de frottement (36) comporte une portion amont cylindrique radialement au même niveau ou plus éloignée qu’une extrémité libre de la léchette (23), et une portion aval conique inclinée selon une orientation qui s’éloigne de l’axe longitudinal (AX) de l’aval (AV) vers l’amont (AM). Figure pour l’abrégé : Figure 3
FR1913743A 2019-12-04 2019-12-04 Agencement de limitation de survitesse d’une turbine Active FR3104198B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1913743A FR3104198B1 (fr) 2019-12-04 2019-12-04 Agencement de limitation de survitesse d’une turbine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1913743A FR3104198B1 (fr) 2019-12-04 2019-12-04 Agencement de limitation de survitesse d’une turbine
FR1913743 2019-12-04

Publications (2)

Publication Number Publication Date
FR3104198A1 FR3104198A1 (fr) 2021-06-11
FR3104198B1 true FR3104198B1 (fr) 2022-07-22

Family

ID=69700121

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1913743A Active FR3104198B1 (fr) 2019-12-04 2019-12-04 Agencement de limitation de survitesse d’une turbine

Country Status (1)

Country Link
FR (1) FR3104198B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3154137B1 (fr) * 2023-10-11 2025-10-03 Safran Aircraft Engines Turbomachine comportant un dispositif de limitation de survitesse

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2977909B1 (fr) * 2011-07-12 2016-07-15 Snecma Aube de rotor pour une turbomachine
DE102011086775A1 (de) * 2011-07-20 2013-01-24 Mtu Aero Engines Gmbh Verfahren zur Herstellung eines Einlaufbelags, Einlaufsystem, Strömungsmaschine sowie Leitschaufel
FR3075863B1 (fr) * 2017-12-22 2019-11-22 Safran Aircraft Engines Turbine de turbomachine comportant un dispositif de limitation de survitesse

Also Published As

Publication number Publication date
FR3104198A1 (fr) 2021-06-11

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