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1. WO2020109705 - TURBOFAN ENGINE COMPRISING AN OUTLET CONE COOLED BY ITS SECONDARY FLOW

Publication Number WO/2020/109705
Publication Date 04.06.2020
International Application No. PCT/FR2019/052777
International Filing Date 21.11.2019
IPC
F01D 9/06 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
9Stators
06Fluid supply conduits to nozzles or the like
F01D 25/12 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
08Cooling; Heating; Heat insulation
12Cooling
F01D 25/26 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
24Casings; Casing parts, e.g. diaphragms, casing fastenings
26Double casings; Measures against temperature strain in casings
F01D 25/30 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
30Exhaust heads, chambers, or the like
F02C 7/18 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
12Cooling of plants
16characterised by cooling medium
18the medium being gaseous, e.g. air
F02K 1/38 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
1Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
38Introducing air inside the jet
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 25/26
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
24Casings
26Double casings; Measures against temperature strain in casings
F01D 25/30
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
30Exhaust heads, chambers, or the like
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 7/18
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
12Cooling of plants
16characterised by cooling medium
18the medium being gaseous, e.g. air
F02K 1/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
1Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
04Mounting of an exhaust cone in the jet pipe
Applicants
  • SAFRAN AIRCRAFT ENGINES [FR]/[FR]
Inventors
  • BELMON, Guillaume, Claude, Robert
  • ZACCARDI, Cédric
Agents
  • AHNER, Philippe
Priority Data
187193227.11.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) TURBOFAN ENGINE COMPRISING AN OUTLET CONE COOLED BY ITS SECONDARY FLOW
(FR) TURBORÉACTEUR À DOUBLE FLUX COMPRENANT UN CÔNE DE SORTIE REFROIDI PAR SON FLUX SECONDAIRE
Abstract
(EN)
The invention concerns a turbofan engine comprising an exhaust casing (21) traversed by a primary flow (FP) and surrounded by a secondary flow (FS) and an outlet cone (23) carried by this exhaust casing (21), the exhaust casing and the outlet cone (23) together defining an internal space (E). According to the invention, the exhaust casing (21) comprises a hollow radial arm (38) traversing the primary flow (FP) in order to convey part of the secondary flow (FS) so as to form a cooling flow (Fr) for supplying the internal space (E), and the outlet cone (23) is terminated by an opening (S) for discharging the cooling flow (Fr).
(FR)
L'invention concerne un turboréacteur à double flux comportant un carter d'échappement (21) traversé par un flux primaire (FP) et entouré par un flux secondaire (FS) et un cône de sortie (23) porté par ce carter d'échappement (21), le carter d'échappement et le cône de sortie (23) délimitant conjointement un espace interne (E). Selon l'invention, le carter d'échappement (21) comporte un bras radial (38) creux traversant le flux primaire (FP) pour acheminer une part du flux secondaire (FS) afin de former un flux de refroidissement (Fr) pour alimenter l'espace interne (E), et le cône de sortie (23) est terminé par une ouverture (S) d'évacuation du flux de refroidissement (Fr).
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