FR3072749B1 - EPICYCLOIDAL GEAR TRAIN - Google Patents

EPICYCLOIDAL GEAR TRAIN Download PDF

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Publication number
FR3072749B1
FR3072749B1 FR1760028A FR1760028A FR3072749B1 FR 3072749 B1 FR3072749 B1 FR 3072749B1 FR 1760028 A FR1760028 A FR 1760028A FR 1760028 A FR1760028 A FR 1760028A FR 3072749 B1 FR3072749 B1 FR 3072749B1
Authority
FR
France
Prior art keywords
annular
gear train
flange
annular flange
epicycloidal gear
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
FR1760028A
Other languages
French (fr)
Other versions
FR3072749A1 (en
Inventor
Emile Andre Peltier Jordane
Julien Beck Guillaume
Pierre Marcel Morelli Boris
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 Transmission Systems SAS
Original Assignee
Safran Transmission Systems 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 Transmission Systems SAS filed Critical Safran Transmission Systems SAS
Priority to FR1760028A priority Critical patent/FR3072749B1/en
Publication of FR3072749A1 publication Critical patent/FR3072749A1/en
Application granted granted Critical
Publication of FR3072749B1 publication Critical patent/FR3072749B1/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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • 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
    • F05D2250/00—Geometry
    • F05D2250/60—Structure; Surface texture
    • F05D2250/61—Structure; Surface texture corrugated
    • F05D2250/611—Structure; Surface texture corrugated undulated
    • 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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Details Of Gearings (AREA)
  • Retarders (AREA)

Abstract

L'invention concerne une pièce (80) annulaire de support d'un planétaire externe (38) dans un train d'engrenage épicycloïdal, comprenant une première bride annulaire radiale (66) formée à une première extrémité axiale et une seconde bride annulaire radiale (68) formée à une seconde extrémité axiale, la première bride annulaire (66) et la seconde bride annulaire (68) étant reliées à l'une à l'autre par une paroi annulaire de liaison (78). Selon l'invention, la paroi annulaire de liaison (78) comprend une portion de jonction à la seconde bride (68) qui forme un renflement annulaire (76) entourant la seconde bride annulaire (68).The invention relates to an annular part (80) for supporting an external sun gear (38) in a planetary gear train, comprising a first radial annular flange (66) formed at a first axial end and a second radial annular flange ( 68) formed at a second axial end, the first annular flange (66) and the second annular flange (68) being connected to one another by an annular connecting wall (78). According to the invention, the annular connecting wall (78) comprises a junction portion with the second flange (68) which forms an annular bulge (76) surrounding the second annular flange (68).

FR1760028A 2017-10-24 2017-10-24 EPICYCLOIDAL GEAR TRAIN Active FR3072749B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1760028A FR3072749B1 (en) 2017-10-24 2017-10-24 EPICYCLOIDAL GEAR TRAIN

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1760028A FR3072749B1 (en) 2017-10-24 2017-10-24 EPICYCLOIDAL GEAR TRAIN
FR1760028 2017-10-24

Publications (2)

Publication Number Publication Date
FR3072749A1 FR3072749A1 (en) 2019-04-26
FR3072749B1 true FR3072749B1 (en) 2020-01-03

Family

ID=60888504

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1760028A Active FR3072749B1 (en) 2017-10-24 2017-10-24 EPICYCLOIDAL GEAR TRAIN

Country Status (1)

Country Link
FR (1) FR3072749B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4382769A1 (en) 2022-12-09 2024-06-12 Safran Transmission Systems Ring gear for an aircraft mechanical gear

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3097259B1 (en) * 2019-06-12 2021-05-21 Safran Helicopter Engines ANNULAR PART OF A BEARING SUPPORT FOR A TURBOMACHINE
FR3116305B1 (en) * 2020-11-18 2023-06-30 Safran Aircraft Engines CONNECTING SHAFT OF A HIGH PRESSURE BODY OF A TURBOMACHINE

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4948620B2 (en) * 2010-04-13 2012-06-06 川崎重工業株式会社 Gear device
FR3016189B1 (en) * 2014-01-07 2018-09-28 Safran Aircraft Engines EPICYCLOIDAL REDUCTION DEVICE FOR THE ROTATIONAL DRIVE OF BLADE ASSEMBLIES OF A REDUCING TURBOMACHINE
GB201417504D0 (en) * 2014-10-03 2014-11-19 Rolls Royce Deutschland A gas turbine architecture
US9745898B2 (en) * 2014-12-18 2017-08-29 United Technologies Corporation Planetary gear system for turbomachine
US10119465B2 (en) * 2015-06-23 2018-11-06 United Technologies Corporation Geared turbofan with independent flexible ring gears and oil collectors
GB201518227D0 (en) * 2015-10-15 2015-12-02 Rolls Royce Plc A geared gas turbine engine
US10281025B2 (en) * 2015-10-19 2019-05-07 United Technologies Corporation Fixed support and oil collector system for ring gear

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4382769A1 (en) 2022-12-09 2024-06-12 Safran Transmission Systems Ring gear for an aircraft mechanical gear
FR3143080A1 (en) 2022-12-09 2024-06-14 Safran Transmission Systems CROWN FOR AN AIRCRAFT MECHANICAL REDUCER

Also Published As

Publication number Publication date
FR3072749A1 (en) 2019-04-26

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