FR3103523B1 - Balancing device - Google Patents

Balancing device Download PDF

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Publication number
FR3103523B1
FR3103523B1 FR1913276A FR1913276A FR3103523B1 FR 3103523 B1 FR3103523 B1 FR 3103523B1 FR 1913276 A FR1913276 A FR 1913276A FR 1913276 A FR1913276 A FR 1913276A FR 3103523 B1 FR3103523 B1 FR 3103523B1
Authority
FR
France
Prior art keywords
annular
shaft
swirler
clearance
surrounded
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
FR1913276A
Other languages
French (fr)
Other versions
FR3103523A1 (en
Inventor
Arnaud Bessy
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 FR1913276A priority Critical patent/FR3103523B1/en
Publication of FR3103523A1 publication Critical patent/FR3103523A1/en
Application granted granted Critical
Publication of FR3103523B1 publication Critical patent/FR3103523B1/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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/18—Lubricating arrangements
    • F01D25/183—Sealing means
    • 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
    • F01D11/003—Preventing or minimising internal leakage of working-fluid, e.g. between stages by packing rings; Mechanical 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
    • F16J15/441—Free-space packings with floating ring
    • 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
    • F16J15/441—Free-space packings with floating ring
    • F16J15/442—Free-space packings with floating ring segmented
    • 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
    • F05D2230/60—Assembly methods
    • F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
    • 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
    • F05D2230/90—Coating; Surface treatment
    • 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
    • F05D2250/40—Movement of components
    • F05D2250/41—Movement of components with one degree of freedom

Landscapes

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

Abstract

L’invention concerne un ensemble (36) pour turbomachine d’axe longitudinal (14) comprenant un arbre (12) entouré extérieurement par une pièce annulaire statorique (38) et une vrille annulaire (40) montée avec un premier jeu annulaire (J1) autour de l’arbre (12), caractérisé en ce que la vrille annuaire (40) est guidée en translation radiale relativement à la pièce statorique (38) et est entourée extérieurement par des moyens (54) annulaires de rappel de la vrille annulaire (40) dans une position centrée sur l’axe longitudinal (14), la vrille annulaire (40) étant solidaire d’au moins une surface annulaire agencée autour de l’arbre avec un second jeu annulaire (J2) inférieur au premier jeu annulaire (J1), cette surface annulaire (52a) formant un palier lisse. Figure à publier avec l’abrégé : figure 3The invention relates to an assembly (36) for a turbomachine with a longitudinal axis (14) comprising a shaft (12) surrounded on the outside by an annular stator part (38) and an annular swirler (40) mounted with a first annular clearance (J1). around the shaft (12), characterized in that the annular swirler (40) is guided in radial translation relative to the stator part (38) and is surrounded on the outside by annular means (54) for returning the annular swirler ( 40) in a position centered on the longitudinal axis (14), the annular auger (40) being integral with at least one annular surface arranged around the shaft with a second annular clearance (J2) less than the first annular clearance ( J1), this annular surface (52a) forming a plain bearing. Figure to be published with the abstract: figure 3

FR1913276A 2019-11-26 2019-11-26 Balancing device Active FR3103523B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1913276A FR3103523B1 (en) 2019-11-26 2019-11-26 Balancing device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1913276A FR3103523B1 (en) 2019-11-26 2019-11-26 Balancing device
FR1913276 2019-11-26

Publications (2)

Publication Number Publication Date
FR3103523A1 FR3103523A1 (en) 2021-05-28
FR3103523B1 true FR3103523B1 (en) 2021-11-05

Family

ID=69572222

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1913276A Active FR3103523B1 (en) 2019-11-26 2019-11-26 Balancing device

Country Status (1)

Country Link
FR (1) FR3103523B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874677A (en) * 1973-07-19 1975-04-01 Nasa High speed, self-acting shaft seal
FR2644205B1 (en) * 1989-03-08 1991-05-03 Snecma TURBOMACHINE BEARING WITH INTEGRATED SEAL
US9068571B2 (en) * 2009-04-03 2015-06-30 Ergoseal, Inc. Seal for oil-free rotary displacement compressor
US8079807B2 (en) * 2010-01-29 2011-12-20 General Electric Company Mounting apparatus for low-ductility turbine shroud
US10370996B2 (en) * 2016-08-23 2019-08-06 United Technologies Corporation Floating, non-contact seal with offset build clearance for load imbalance

Also Published As

Publication number Publication date
FR3103523A1 (en) 2021-05-28

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