FR3072719B1 - VARIABLE TIMING BLADE STAGE CONTROL RING FOR A TURBOMACHINE - Google Patents

VARIABLE TIMING BLADE STAGE CONTROL RING FOR A TURBOMACHINE Download PDF

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Publication number
FR3072719B1
FR3072719B1 FR1759887A FR1759887A FR3072719B1 FR 3072719 B1 FR3072719 B1 FR 3072719B1 FR 1759887 A FR1759887 A FR 1759887A FR 1759887 A FR1759887 A FR 1759887A FR 3072719 B1 FR3072719 B1 FR 3072719B1
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France
Prior art keywords
pad
axis
revolution
turbomachine
housing
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
FR1759887A
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French (fr)
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FR3072719A1 (en
Inventor
Alain Marc Lucien Bromann
Kamel Benderradji
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 FR1759887A priority Critical patent/FR3072719B1/en
Publication of FR3072719A1 publication Critical patent/FR3072719A1/en
Application granted granted Critical
Publication of FR3072719B1 publication Critical patent/FR3072719B1/en
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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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
    • F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
    • 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
    • F05D2250/70—Shape
    • F05D2250/75—Shape given by its similarity to a letter, e.g. T-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Anneau (36) de commande d'un étage d'aubes à calage variable pour une turbomachine, comportant un corps annulaire présentant un axe de révolution, et des moyens configurés pour coopérer avec le carter afin de centrer et guider ledit corps, lesdits troisièmes moyens comportant au moins un patin (44) d'appui sur ledit carter, ce patin étant porté par une vis de réglage (46) qui traverse un logement (48) sensiblement radial dudit corps, caractérisé en ce que ladite vis de réglage comprend une extrémité radialement interne ayant une symétrie de révolution autour de l'axe (A) de la vis et ayant en section une forme générale en T inversé, qui est engagée dans un évidement (62) de forme complémentaire dudit patin ou d'un organe (54) de support dudit patin, par déplacement dans une direction sensiblement parallèle audit axe de révolution, ledit patin ou ledit organe comportant au moins un méplat (64) sensiblement parallèle à un plan perpendiculaire audit axe de révolution et coopérant par butée avec une paroi (66) dudit logement en vue du blocage en rotation dudit patin ou organe autour de l'axe de la vis.Ring (36) for controlling a stage of variable-pitch blades for a turbomachine, comprising an annular body having an axis of revolution, and means configured to cooperate with the casing in order to center and guide said body, said third means comprising at least one pad (44) for bearing on said housing, this pad being carried by an adjustment screw (46) which passes through a housing (48) substantially radial of said body, characterized in that said adjustment screw comprises one end radially internal having a symmetry of revolution around the axis (A) of the screw and having in section the general shape of an inverted T, which is engaged in a recess (62) of complementary shape of said pad or of a member (54 ) for supporting said pad, by displacement in a direction substantially parallel to said axis of revolution, said pad or said member comprising at least one flat (64) substantially parallel to a plane perpendicular to said axis of revolution and cooperating by stopper e with a wall (66) of said housing for the purpose of blocking in rotation of said pad or member around the axis of the screw.

FR1759887A 2017-10-20 2017-10-20 VARIABLE TIMING BLADE STAGE CONTROL RING FOR A TURBOMACHINE Active FR3072719B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1759887A FR3072719B1 (en) 2017-10-20 2017-10-20 VARIABLE TIMING BLADE STAGE CONTROL RING FOR A TURBOMACHINE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1759887 2017-10-20
FR1759887A FR3072719B1 (en) 2017-10-20 2017-10-20 VARIABLE TIMING BLADE STAGE CONTROL RING FOR A TURBOMACHINE

Publications (2)

Publication Number Publication Date
FR3072719A1 FR3072719A1 (en) 2019-04-26
FR3072719B1 true FR3072719B1 (en) 2020-10-09

Family

ID=60627859

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1759887A Active FR3072719B1 (en) 2017-10-20 2017-10-20 VARIABLE TIMING BLADE STAGE CONTROL RING FOR A TURBOMACHINE

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FR (1) FR3072719B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3139857A1 (en) 2022-09-16 2024-03-22 Safran Aircraft Engines Assembly of a variable pitch blade device
FR3139859A1 (en) 2022-09-16 2024-03-22 Safran Aircraft Engines Assembly of a variable pitch blade device
FR3139861A1 (en) 2022-09-16 2024-03-22 Safran Aircraft Engines Assembly of a variable pitch blade device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699595B1 (en) * 1992-12-23 1995-01-20 Snecma Device for guiding in rotation a control ring for pivoting vanes.
FR2882577A1 (en) * 2005-02-25 2006-09-01 Snecma Moteurs Sa Actuating ring`s centering adjusting device for rotary blade of turbomachine, has brake shoe comprising rod with longitudinal groove, and washer comprising radial pin engaged in groove and radial slots engaged in slots of cavity of ring
FR2922257B1 (en) * 2007-10-12 2014-03-28 Snecma IMPROVEMENT TO A CALIBRATION CONTROL RING OF THE FIXED AUBES OF A TURBOMACHINE
FR3027072B1 (en) * 2014-10-08 2018-11-09 Safran Aircraft Engines CONTROL RING OF A VARIABLE SHIFT AUBRA STAGE FOR A TURBOMACHINE

Also Published As

Publication number Publication date
FR3072719A1 (en) 2019-04-26

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