FR3096072B1 - Turbomachine comprising a variable viscance shaft bearing damper - Google Patents

Turbomachine comprising a variable viscance shaft bearing damper Download PDF

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Publication number
FR3096072B1
FR3096072B1 FR1905025A FR1905025A FR3096072B1 FR 3096072 B1 FR3096072 B1 FR 3096072B1 FR 1905025 A FR1905025 A FR 1905025A FR 1905025 A FR1905025 A FR 1905025A FR 3096072 B1 FR3096072 B1 FR 3096072B1
Authority
FR
France
Prior art keywords
bearing
variable
turbomachine
seal
viscance
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
FR1905025A
Other languages
French (fr)
Other versions
FR3096072A1 (en
Inventor
Julien Fabien Patrick Becoulet
Alexandre Jean-Marie Tan-Kim
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 FR1905025A priority Critical patent/FR3096072B1/en
Publication of FR3096072A1 publication Critical patent/FR3096072A1/en
Application granted granted Critical
Publication of FR3096072B1 publication Critical patent/FR3096072B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F01D25/162—Bearing supports
    • 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
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F01D25/162—Bearing supports
    • F01D25/164—Flexible supports; Vibration damping means associated with the bearing
    • 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
    • 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
    • F05D2230/644—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins for adjusting the position or the alignment, e.g. wedges or eccenters
    • 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
    • F05D2240/00—Components
    • F05D2240/50—Bearings
    • F05D2240/53—Hydrodynamic or hydrostatic bearings
    • 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
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/32—Retaining components in desired mutual position by means of magnetic or electromagnetic forces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Support Of The Bearing (AREA)

Abstract

Turbomachine (10) comportant un arbre rotatif (16), un palier (18) soutenant l’arbre rotatif (16), un support de palier (20) soutenant le palier (18), et une bague intermédiaire (24) disposée entre le palier (18) et le support de palier (20), la bague intermédiaire (24) étant configurée pour coulisser axialement par rapport au palier (18), un premier joint (36) couplé axialement avec le palier (18) et un deuxième joint (38) couplé axialement avec la bague intermédiaire (24), le premier joint (36), le deuxième joint (38), le palier (18) et la bague intermédiaire (24) définissant une chambre (40) à longueur axiale (L) variable et formant, lorsqu’elle est remplie d’huile, un amortisseur à raideur variable. Figure pour l’abrégé : Fig. 2.Turbomachine (10) comprising a rotating shaft (16), a bearing (18) supporting the rotating shaft (16), a bearing support (20) supporting the bearing (18), and an intermediate ring (24) disposed between the bearing (18) and the bearing support (20), the intermediate ring (24) being configured to slide axially relative to the bearing (18), a first seal (36) axially coupled with the bearing (18) and a second seal (38) axially coupled with the intermediate ring (24), the first seal (36), the second seal (38), the bearing (18) and the intermediate ring (24) defining an axial length chamber (40) (L ) variable and forming, when filled with oil, a variable stiffness damper. Figure for the abstract: Fig. 2.

FR1905025A 2019-05-14 2019-05-14 Turbomachine comprising a variable viscance shaft bearing damper Active FR3096072B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1905025A FR3096072B1 (en) 2019-05-14 2019-05-14 Turbomachine comprising a variable viscance shaft bearing damper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1905025 2019-05-14
FR1905025A FR3096072B1 (en) 2019-05-14 2019-05-14 Turbomachine comprising a variable viscance shaft bearing damper

Publications (2)

Publication Number Publication Date
FR3096072A1 FR3096072A1 (en) 2020-11-20
FR3096072B1 true FR3096072B1 (en) 2021-04-30

Family

ID=68072623

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1905025A Active FR3096072B1 (en) 2019-05-14 2019-05-14 Turbomachine comprising a variable viscance shaft bearing damper

Country Status (1)

Country Link
FR (1) FR3096072B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3120904B1 (en) * 2021-03-18 2023-03-24 Safran Aircraft Engines CENTERING AND GUIDE DEVICE FOR AN AIRCRAFT TURBOMACHINE SHAFT

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2629537B1 (en) 1988-03-30 1990-11-30 Snecma MULTI-BODY TURBOMACHINE INTER-SHAFT BEARING PROVIDED WITH A GAMING CONTROL DEVICE
FR2845138B1 (en) * 2002-10-01 2004-12-17 Snecma Moteurs BEARING BEARING AMORTIZED WITH OIL
US7574854B2 (en) * 2006-01-06 2009-08-18 General Electric Company Gas turbine engine assembly and methods of assembling same
FR2979681B1 (en) 2011-09-05 2014-05-16 Snecma TURBOMACHINE COMPRISING A FLUID FILM FOR DAMPING A TURBOMACHINE SHAFT GUIDE BEARING AND METHOD FOR ADJUSTING THE THICKNESS OF SUCH A DAMPING FLUID FILM

Also Published As

Publication number Publication date
FR3096072A1 (en) 2020-11-20

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