FR3075308B1 - LUBRICATION CHAMBER OF AT LEAST ONE BEARING OF A TURBOMACHINE - Google Patents

LUBRICATION CHAMBER OF AT LEAST ONE BEARING OF A TURBOMACHINE Download PDF

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Publication number
FR3075308B1
FR3075308B1 FR1762100A FR1762100A FR3075308B1 FR 3075308 B1 FR3075308 B1 FR 3075308B1 FR 1762100 A FR1762100 A FR 1762100A FR 1762100 A FR1762100 A FR 1762100A FR 3075308 B1 FR3075308 B1 FR 3075308B1
Authority
FR
France
Prior art keywords
turbomachine
enclosure
bearing
pressurized air
flow
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
FR1762100A
Other languages
French (fr)
Other versions
FR3075308A1 (en
Inventor
Daniel Bernava
Abdelkader BENYAHIA
Roger Gaston Caty Fabien
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 FR1762100A priority Critical patent/FR3075308B1/en
Publication of FR3075308A1 publication Critical patent/FR3075308A1/en
Application granted granted Critical
Publication of FR3075308B1 publication Critical patent/FR3075308B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/30—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the oil being fed or carried along by another fluid
    • F16N7/32—Mist lubrication
    • 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
    • F01D17/148—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of rotatable members, e.g. butterfly valves
    • 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
    • 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
    • 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
    • F01D25/32—Collecting of condensation water; Drainage ; Removing solid particles
    • 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
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
    • F16N7/40—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems in a closed circulation system
    • 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
    • F05D2260/60—Fluid transfer
    • F05D2260/602—Drainage
    • F05D2260/6022—Drainage of leakage having past a seal
    • 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
    • F05D2260/60—Fluid transfer
    • F05D2260/609—Deoiling or demisting

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'invention concerne une enceinte (20) de lubrification d'au moins un palier (10) d'une turbomachine, comprenant des parois fixes (22) s'étendant autour dudit au moins un palier (10) de guidage d'un arbre (12), des moyens d'étanchéité (24) étant agencés entre lesdites parois fixes (22) et ledit arbre (12), l'enceinte (20) étant configurée pour subir la pression d'un système de pressurisation (36) délivrant un débit de pressurisation à travers desdits moyens d'étanchéité (24) dans ladite enceinte (20), et au moins une canalisation (38) de sortie d'air sous pression agencée pour évacuer l'air sous pression de ladite enceinte (20), caractérisée en ce que ladite canalisation (38) comprend des moyens de réglage de débit (42), qui sont configurés pour maintenir une valeur nominale du débit de sortie d'air sous pression lorsque la turbomachine est à un bas régime, tel qu'un vol stationnaire et en descente, et pour réduire la valeur du débit de sortie lorsque la turbomachine est à un haut régime, tel qu'au décollage, à l'atterrissage pendant une inversion de poussée, en montée et en vol croisière.The invention relates to an enclosure (20) for lubricating at least one bearing (10) of a turbomachine, comprising fixed walls (22) extending around said at least one bearing (10) for guiding a shaft. (12), sealing means (24) being arranged between said fixed walls (22) and said shaft (12), the enclosure (20) being configured to undergo the pressure of a pressurization system (36) delivering a pressurization flow through said sealing means (24) in said enclosure (20), and at least one pipe (38) for outlet of pressurized air arranged to evacuate the pressurized air from said enclosure (20) , characterized in that said pipe (38) comprises flow adjustment means (42), which are configured to maintain a nominal value of the pressurized air outlet flow when the turbomachine is at a low speed, such as hovering and descending, and to reduce the value of the output flow when the turbomachine is at a high speed me, such as during takeoff, landing during a reverse thrust, climb and cruise flight.

FR1762100A 2017-12-14 2017-12-14 LUBRICATION CHAMBER OF AT LEAST ONE BEARING OF A TURBOMACHINE Active FR3075308B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1762100A FR3075308B1 (en) 2017-12-14 2017-12-14 LUBRICATION CHAMBER OF AT LEAST ONE BEARING OF A TURBOMACHINE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1762100A FR3075308B1 (en) 2017-12-14 2017-12-14 LUBRICATION CHAMBER OF AT LEAST ONE BEARING OF A TURBOMACHINE
FR1762100 2017-12-14

Publications (2)

Publication Number Publication Date
FR3075308A1 FR3075308A1 (en) 2019-06-21
FR3075308B1 true FR3075308B1 (en) 2020-07-03

Family

ID=61224113

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1762100A Active FR3075308B1 (en) 2017-12-14 2017-12-14 LUBRICATION CHAMBER OF AT LEAST ONE BEARING OF A TURBOMACHINE

Country Status (1)

Country Link
FR (1) FR3075308B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119858B (en) * 1982-05-13 1985-05-30 United Technologies Corp Means for controlling air scavenge pressure in the bearing compartment of gas turbines
GB0218849D0 (en) * 2002-08-14 2002-09-25 Rolls Royce Plc Lubrication system for gas turbine engine
FR2936273B1 (en) * 2008-09-22 2010-10-29 Snecma METHOD AND SYSTEM FOR LUBRICATING A TURBOMACHINE
WO2015061011A1 (en) * 2013-10-24 2015-04-30 United Technologies Corporation Gas turbine lubrication systems

Also Published As

Publication number Publication date
FR3075308A1 (en) 2019-06-21

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