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1. WO2012114029 - DRIVESHAFT FOR THE GEARBOX OF AUXILIARY MACHINES OF A TURBOJET ENGINE

Publication Number WO/2012/114029
Publication Date 30.08.2012
International Application No. PCT/FR2012/050354
International Filing Date 17.02.2012
IPC
F02C 7/32 2006.1
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
32Arrangement, mounting, or driving, of auxiliaries
F02K 3/06 2006.1
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
F02C 7/36 2006.1
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
B60K 25/06
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
25Auxiliary drives
06from the transmission power take-off
F02C 7/32
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
32Arrangement, mounting, or driving, of auxiliaries
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 2220/50
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
2220Application
50for auxiliary power units (APU's)
Applicants
  • SNECMA [FR]/[FR] (AllExceptUS)
  • BRAULT, Michel, Gilbert, Roland [FR]/[FR] (UsOnly)
  • SERVANT, Régis, Eugène, Henri [FR]/[FR] (UsOnly)
Inventors
  • BRAULT, Michel, Gilbert, Roland
  • SERVANT, Régis, Eugène, Henri
Agents
  • DAVID, Daniel
Priority Data
115138121.02.2011FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) DRIVESHAFT FOR THE GEARBOX OF AUXILIARY MACHINES OF A TURBOJET ENGINE
(FR) ARBRE D'ENTRAINEMENT DE BOITIER A ENGRENAGES DE MACHINES AUXILIAIRES D'UN TURBOREACTEUR
Abstract
(EN) The invention relates to, in particular, a multi-flow turbojet engine, including an intermediate casing having radial arms and a driveshaft for the gearbox of auxiliary machines of the turbojet engine, said drive shaft being mounted in a radial arm of the intermediate casing, said radial arm of the intermediate casing including an intermediate bearing (110) for supporting the driveshaft, said intermediate bearing (110) including a plurality of bearings (115) for supporting the driveshaft, the driveshaft including a first shaft element (101), which is connected, at one end thereof, to a means for providing mechanical transmission to the turbojet engine, and a second shaft element (102), which is connected, at one end thereof, to a means for providing mechanical transmission to said housing, the first shaft element (101) and the second shaft element (102) being linked by a linkage (105) including a plurality of grooves (107), the turbojet engine being characterized in that a single plane transversely passes through the plurality of grooves (107) and the plurality of bearings (115).
(FR) Turboréacteur notamment multi-flux, comprenant un carter intermédiaire avec des bras radiaux et un arbre d'entraînement d'un boîtier à engrenages de machines auxiliaires du turboréacteur, ledit arbre d'entraînement étant monté dans un bras radial du carter intermédiaire, ledit bras radial du carter intermédiaire comprenant un palier intermédiaire (110) de support de l'arbre d'entraînement, ledit palier intermédiaire (110) comprenant une pluralité de roulements (115) de support de l'arbre d'entraînement, l'arbre d'entraînement comprenant un premier élément d'arbre (101), relié à une extrémité à un moyen de transmission mécanique avec un arbre moteur du turboréacteur, et un second élément d'arbre (102), relié à une extrémité à un moyen de transmission mécanique avec ledit boîtier, le premier élément d'arbre (101) et le second élément d'arbre (102) étant liés par une liaison (105) comprenant une pluralité de cannelures (107), le turboréacteur étant caractérisé par le fait qu'un même plan coupe transversalement la pluralité de cannelures (107) et la pluralité de roulements (115).
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