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1. WO2020109706 - DOUBLE-FLOW TURBOJET ENGINE ASSEMBLY WITH EPICYCLOIDAL OR PLANETARY REDUCTION GEAR

Publication Number WO/2020/109706
Publication Date 04.06.2020
International Application No. PCT/FR2019/052778
International Filing Date 21.11.2019
IPC
F02C 7/06 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
06Arrangement of bearings; Lubricating
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
F02K 3/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
3Plants including a gas turbine driving a compressor or a ducted fan
02in which part of the working fluid by-passes the turbine and combustion chamber
04the plant including ducted fans, i.e. fans with high volume, low-pressure outputs, for augmenting jet thrust, e.g. of double-flow type
06with front fan
CPC
F02C 7/06
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
06Arrangements of bearings
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
F02K 3/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
3Plants including a gas turbine driving a compressor or a ducted fan
02in which part of the working fluid by-passes the turbine and combustion chamber
04the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type
06with front fan
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
187192927.11.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) DOUBLE-FLOW TURBOJET ENGINE ASSEMBLY WITH EPICYCLOIDAL OR PLANETARY REDUCTION GEAR
(FR) AGENCEMENT DE TURBORÉACTEUR DOUBLE FLUX À RÉDUCTEUR ÉPICYCLOÏDAL OU PLANÉTAIRE
Abstract
(EN)
The invention relates to a turbojet engine comprising a central shaft (AC) surrounded by a coaxial and independent high-pressure body (CH), said turbojet engine comprising, from upstream (AM) to downstream (AV): - a fan (13) driven by the central shaft (AC) ;- a high-pressure compressor (16) and a high-pressure turbine (17) supported by the high-pressure body (CH); - an inter-turbine housing (18); - a low-pressure turbine (19); and - an exhaust housing (21); said turbojet engine additionally comprising: - a low-pressure rotor (RB) which extends downstream of the central shaft (AC) and supports the low-pressure turbine (19); - a rotor bearing (23) supported by the exhaust housing (21); - a reduction gear (22) by means of which the low-pressure rotor (RB) drives the central shaft (AC), said reduction gear being located upstream of the rotor bearing (23); and - a downstream shaft bearing (29) which is located upstream of the reduction gear (22).
(FR)
L'invention a pour objet un turboréacteur comportant un arbre central (AC) entouré par un corps haute pression (CH) coaxiaux et indépendants, ce turboréacteur comportant depuis l'amont (AM) vers l'aval (AV) : –une soufflante (13) entrainée par l'arbre central (AC); –un compresseur haute pression (16) et une turbine haute pression (17) portés par le corps haute pression (CH); –un carter inter-turbines (18); –une turbine basse pression (19); –un carter d'échappement (21); ce turboréacteur comportant en outre: –un rotor basse pression (RB) s'étendant en aval de l'arbre central (AC) et qui porte la turbine basse pression (19); –un palier de rotor (23) porté par le carter d'échappement (21); –un réducteur (22) par lequel le rotor basse pression (RB) entraine l'arbre central (AC), ce réducteur étant situé en amont du palier de rotor (23); –un palier aval d'arbre (29) situé en amont du réducteur (22).
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