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1. WO2022008853 - COUNTER-ROTATING COMPRESSOR FOR A TURBOMACHINE

Publication Number WO/2022/008853
Publication Date 13.01.2022
International Application No. PCT/FR2021/051278
International Filing Date 09.07.2021
IPC
F04D 19/02 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
19Axial-flow pumps specially adapted for elastic fluids
02Multi-stage pumps
F04D 25/04 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
25Pumping installations or systems specially adapted for elastic fluids
02Units comprising pumps and their driving means
04the pump being fluid-driven
F04D 25/06 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
25Pumping installations or systems specially adapted for elastic fluids
02Units comprising pumps and their driving means
06the pump being electrically driven
F02C 3/067 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
3Gas-turbine plants characterised by the use of combustion products as the working fluid
04having a turbine driving a compressor
06the compressor comprising only axial stages
067having counter-rotating rotors
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
F01D 1/26 2006.1
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
1Non-positive-displacement machines or engines, e.g. steam turbines
24characterised by counter-rotating rotors subjected to same working-fluid stream without intermediate stator blades or the like
26traversed by the working-fluid substantially axially
Applicants
  • SAFRAN AIRCRAFT ENGINES [FR]/[FR]
Inventors
  • FICHANT, Alexandre
  • BOSC, Swan Alexis
Agents
  • REGIMBEAU
Priority Data
FR200729809.07.2020FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) COUNTER-ROTATING COMPRESSOR FOR A TURBOMACHINE
(FR) COMPRESSEUR CONTRAROTATIF DE TURBOMACHINE
Abstract
(EN) The invention relates to a counter-rotating compressor (10) for a turbomachine, comprising: a rotor (16); a plurality of stages of first blades (1) mounted on the rotor (16) so as to rotate the first blades (1) in a first direction of rotation of the rotor (11); at least one stage of second blades (2) mounted between the stages of first blades (1); the compressor (10) further comprising at least one electric motor (21); at least one stage of second blades being rotated by the at least one first electric motor (21) in a second direction of rotation opposite the first direction of rotation.
(FR) L'invention concerne un compresseur (10) contrarotatif de turbomachine comprenant : un rotor (16); une pluralités d'étages de premières aubes (1) montés sur le rotor (16) de manière à entrainer les premières aubes (1) dans un premier sens de rotation du rotor (11); au moins un étage de deuxième aubes (2) monté entre les étages de premières aubes (1); ledit compresseur (10) comprenant en outre, au moins un moteur électrique (21); au moins un étage de deuxième aubes étant entrainé en rotation par ledit au moins un premier moteur électrique (21) dans un deuxième sens de rotation contraire au premier sens de rotation.
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