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1. WO2020109702 - DUAL-FLOW TURBOJET ENGINE ARRANGEMENT WITH EPICYCLIC OR PLANETARY REDUCTION GEAR

Publication Number WO/2020/109702
Publication Date 04.06.2020
International Application No. PCT/FR2019/052774
International Filing Date 21.11.2019
IPC
F02C 3/107 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
3Gas-turbine plants characterised by the use of combustion products as the working fluid
04having a turbine driving a compressor
107with two or more rotors connected by power transmission
F02C 7/36 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
7Features, component parts, details or accessories, not provided for in, or of interest apart from, groups F02C1/-F02C6/158; Air intakes for jet-propulsion plants
36Power transmission between the different shafts of the gas-turbine plant, or between the gas-turbine plant and the power user
F01D 25/16 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
25Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
16Arrangement of bearings; Supporting or mounting bearings in casings
CPC
F01D 25/16
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
25Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
16Arrangement of bearings; Supporting or mounting bearings in casings
F02C 3/107
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
3Gas-turbine plants characterised by the use of combustion products as the working fluid
04having a turbine driving a compressor
107with two or more rotors connected by power transmission
F02C 7/36
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
7Features, 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
36Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
F05D 2260/40311
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2260Function
40Transmission of power
403through the shape of the drive components
4031as in toothed gearing
40311of the epicyclical, planetary or differential type
Applicants
  • SAFRAN AIRCRAFT ENGINES [FR]/[FR]
Inventors
  • TAN-KIM, Alexandre, Jean-Marie
  • BENSLAMA, Yanis
  • DIEVART, Jérémy
  • BECOULET, Julien, Fabien, Patrick
Agents
  • AHNER, Philippe
Priority Data
187193127.11.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) DUAL-FLOW TURBOJET ENGINE ARRANGEMENT WITH EPICYCLIC OR PLANETARY REDUCTION GEAR
(FR) AGENCEMENT DE TURBORÉACTEUR DOUBLE FLUX À RÉDUCTEUR ÉPICYCLOÏDAL OU PLANÉTAIRE
Abstract
(EN)
The invention relates to a dual-flow turbojet engine having a central shaft (AC) surrounded by a high-pressure body (CH) which rotate about the same longitudinal axis (AX) while being independent in rotation, and comprising: - a fan (13) driven by the central pressure shaft; - a high-pressure compressor (16) and a high-pressure turbine (17) mounted on the high-pressure body (CH); - an inter-turbine casing (18); - a low-pressure turbine (19) mounted on a low-pressure rotor (RB) surrounding the central shaft (AC); - an exhaust casing (21) on which an output cone (23) is mounted; -a reduction gear (22) by means of which the low-pressure rotor (RB) drives the central pressure shaft (AC); - two bearings (34) mounted on the exhaust casing (21) and respectively receiving the central shaft (AC) and the low-pressure rotor (RB); and - a bearing (26) mounted on the inter-turbine casing (18) and receiving the low-pressure rotor (RB).
(FR)
L'invention concerne un turboréacteur à double flux comportant un arbre central(AC) entouré par un corps haute pression (CH) qui tournent autour d'un même axe longitudinal (AX) tout en étant indépendants en rotation, et comportant : –une soufflante (13) entrainée par l'arbre central pression; –un compresseur haute pression (16) et une turbine haute pression (17) portées par le corps haute pression (CH); –un carter inter-turbines (18); –une turbine basse pression (19) portée par un rotor basse pression (RB) entourant l'arbre central(AC); –un carter d'échappement (21) portant un cône de sortie (23); –un réducteur (22) par l'intermédiaire duquel le rotor basse pression (RB) entraine l'arbre central pression (AC); –deux paliers (34) portés par le carter d'échappement (21) et recevant respectivement l'arbre central(AC)et le rotor basse pression (RB); –un palier (26) porté par le carter inter-turbines (18) et recevant le rotor basse pression (RB).
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