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FR3150840B1 - REDUCER WITH A SOLAR GUIDING BEARING - Google Patents

REDUCER WITH A SOLAR GUIDING BEARING

Info

Publication number
FR3150840B1
FR3150840B1 FR2307042A FR2307042A FR3150840B1 FR 3150840 B1 FR3150840 B1 FR 3150840B1 FR 2307042 A FR2307042 A FR 2307042A FR 2307042 A FR2307042 A FR 2307042A FR 3150840 B1 FR3150840 B1 FR 3150840B1
Authority
FR
France
Prior art keywords
sun
reducer
rotation
output shaft
ring
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
FR2307042A
Other languages
French (fr)
Other versions
FR3150840A1 (en
Inventor
Loic Marius Joseph Albouy
Jonathan Jean-Pierre Rouffet
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 FR2307042A priority Critical patent/FR3150840B1/en
Priority to PCT/FR2024/050895 priority patent/WO2025008593A1/en
Publication of FR3150840A1 publication Critical patent/FR3150840A1/en
Application granted granted Critical
Publication of FR3150840B1 publication Critical patent/FR3150840B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
    • F02C3/107—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor with two or more rotors connected by power transmission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/36—Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
    • F02K3/02—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber
    • F02K3/04—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type
    • F02K3/06—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type with front fan
    • 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
    • F05D2260/40—Transmission of power
    • F05D2260/403—Transmission of power through the shape of the drive components
    • F05D2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05D2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclical, planetary or differential type

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Retarders (AREA)
  • General Details Of Gearings (AREA)
  • Support Of The Bearing (AREA)

Abstract

L’invention concerne un système d’accouplement (50) comprenant un arbre d’entrée (54) s’étendant suivant un axe longitudinal (X), un arbre de sortie (56) et un réducteur (52) couplant l’arbre d’entrée (54) à l’arbre de sortie (56), le réducteur étant un réducteur à train épicycloïdal comportant un solaire entraîné en rotation par l’arbre d’entrée (54), une couronne entourant le solaire (58) et une pluralité de satellites (57), portés par un porte-satellites, en prise avec le solaire (58) et la couronne, l’arbre de sortie (56) étant entraîné en rotation par l’un de la couronne et du porte-satellites (57), dans lequel le système d’accouplement (50) comprend en outre un palier (60) entouré au moins en partie par le solaire (58) et guidant le solaire (58) en rotation autour de l’axe longitudinal (X) par rapport à une structure fixe. Figure pour l’abrégé : Fig. 4The invention relates to a coupling system (50) comprising an input shaft (54) extending along a longitudinal axis (X), an output shaft (56) and a reducer (52) coupling the input shaft (54) to the output shaft (56), the reducer being an epicyclic gear reducer comprising a sun driven in rotation by the input shaft (54), a ring surrounding the sun (58) and a plurality of satellites (57), carried by a satellite carrier, meshing with the sun (58) and the ring, the output shaft (56) being driven in rotation by one of the ring and the satellite carrier (57), in which the coupling system (50) further comprises a bearing (60) surrounded at least in part by the sun (58) and guiding the sun (58) in rotation about the longitudinal axis (X) relative to a fixed structure. Figure for the abridged version: Fig. 4

FR2307042A 2023-07-03 2023-07-03 REDUCER WITH A SOLAR GUIDING BEARING Active FR3150840B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2307042A FR3150840B1 (en) 2023-07-03 2023-07-03 REDUCER WITH A SOLAR GUIDING BEARING
PCT/FR2024/050895 WO2025008593A1 (en) 2023-07-03 2024-07-03 Reduction gear including a bearing for guiding the sun gear

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2307042A FR3150840B1 (en) 2023-07-03 2023-07-03 REDUCER WITH A SOLAR GUIDING BEARING
FR2307042 2023-07-03

Publications (2)

Publication Number Publication Date
FR3150840A1 FR3150840A1 (en) 2025-01-10
FR3150840B1 true FR3150840B1 (en) 2025-10-31

Family

ID=88207493

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2307042A Active FR3150840B1 (en) 2023-07-03 2023-07-03 REDUCER WITH A SOLAR GUIDING BEARING

Country Status (2)

Country Link
FR (1) FR3150840B1 (en)
WO (1) WO2025008593A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4021142A (en) * 1974-10-09 1977-05-03 United Technologies Corporation Pitch-change apparatus for a ducted thrust fan
EP4073369A1 (en) * 2019-12-11 2022-10-19 Safran Aircraft Engines Aero-propulsion system with improved propulsion efficiency
FR3104643B1 (en) * 2019-12-11 2021-11-12 Safran Aircraft Engines Aeronautical propulsion system with low leakage rate and improved propulsive efficiency

Also Published As

Publication number Publication date
WO2025008593A1 (en) 2025-01-09
FR3150840A1 (en) 2025-01-10

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