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1. WO2020109703 - DOUBLE-FLOW TURBOJET ENGINE ASSEMBLY WITH EPICYCLOIDAL OR PLANETARY GEARBOX

Publication Number WO/2020/109703
Publication Date 04.06.2020
International Application No. PCT/FR2019/052775
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
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
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
CPC
F01D 25/125
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
08Cooling
12Cooling
125of bearings
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
F01D 25/162
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
162Bearing supports
F01D 9/065
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
9Stators
06Fluid supply conduits to nozzles or the like
065Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids
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 7/06
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
Applicants
  • SAFRAN AIRCRAFT ENGINES [FR]/[FR]
Inventors
  • BELMON, Guillaume, Claude, Robert
  • ZACCARDI, Cédric
Agents
  • AHNER, Philippe
Priority Data
187193027.11.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) DOUBLE-FLOW TURBOJET ENGINE ASSEMBLY WITH EPICYCLOIDAL OR PLANETARY GEARBOX
(FR) AGENCEMENT DE TURBORÉACTEUR DOUBLE FLUX À RÉDUCTEUR ÉPICYCLOÏDAL OU PLANÉTAIRE
Abstract
(EN)
The invention relates to a turbojet engine comprising a shaft (AC) surrounded by a low-pressure rotor (RB) which is surrounded by an independent coaxial high-pressure body (CH), said turbojet engine comprising, from the upstream (AM) end downstream (AV): - a fan driven by the shaft (AC); - a low-pressure compressor supported by the rotor (RB); - an inter-compressor casing; - a high-pressure compressor and a high-pressure turbine supported by the high-pressure body (CH); an inter-turbine casing (18); -a low-pressure turbine (19) supported by the rotor (RB); - an exhaust casing (21); said turbojet engine comprising: - an upstream rotor bearing (24) supported by the inter-compressor casing; - a downstream rotor bearing (26) supported by the exhaust casing (21); - a gearbox (22) which is downstream of the downstream bearing (26) and by means of which the rotor (RB) drives the shaft (AC); - an upstream bearing of the shaft (34) which is upstream of the upstream bearing of the rotor (26).
(FR)
L'invention concerne un turboréacteur comportant un arbre (AC) entouré par un rotor basse pression (RB) entouré par un corps haute pression (CH) coaxial et indépendant, ce turboréacteur comportant d'amont (AM) en aval (AV) : –une soufflante entrainée par l'arbre (AC); –un compresseur basse pression porté par le rotor (RB); –un carter inter-compresseurs; –un compresseur haute pression et une turbine haute pression portés par le corps haute pression (CH); –un carter inter-turbines (18); –une turbine basse pression (19) portée par le rotor (RB); –un carter d'échappement (21); ce turboréacteur comportant : –un palier amont de rotor (24) porté par le carter inter-compresseurs; –un palier aval de rotor (26) porté par le carter d'échappement (21); –un réducteur (22) en aval du palier aval (26) et par lequel le rotor (RB) entraine l'arbre (AC); –un palier aval d'arbre (34) en aval du palier aval de rotor (26).
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