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1. EP3123014 - MULTI-ENGINED HELICOPTER ARCHITECTURE AND HELICOPTER

Office
European Patent Office
Application Number 15717022
Application Date 20.03.2015
Publication Number 3123014
Publication Date 01.02.2017
Publication Kind B1
IPC
F02C 7/262
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
26Starting; Ignition
262Restarting after flame-out
B64C 27/04
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
27Rotorcraft; Rotors peculiar thereto
04Helicopters
B64D 35/08
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
35Transmitting power from power plant to propellers or rotors; Arrangements of transmissions
08characterised by the transmission being driven by a plurality of power plants
F02C 7/275
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
26Starting; Ignition
268Starting drives for the rotor
275Mechanical drives
F02C 9/42
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
9Controlling gas-turbine plants; Controlling fuel supply in air-breathing jet-propulsion plants
26Control of fuel supply
42specially adapted for the control of two or more plants simultaneously
CPC
B64C 27/04
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
27Rotorcraft; Rotors peculiar thereto
04Helicopters
B64D 35/08
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
35Transmitting power from power plant to propellers or rotors; Arrangements of transmissions
08characterised by the transmission being driven by a plurality of power plants
F02C 7/262
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
26Starting; Ignition
262Restarting after flame-out
F02C 7/275
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
26Starting; Ignition
268Starting drives for the rotor ; , acting directly on the rotor of the gas turbine to be started
275Mechanical drives
F02C 9/42
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
9Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
26Control of fuel supply
42specially adapted for the control of two or more plants simultaneously
F05D 2220/329
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
30in turbines
32in gas turbines
329in helicopters
Applicants SAFRAN HELICOPTER ENGINES
Inventors MERCIER-CALVAIRAC FABIEN
HUMBERT SOPHIE
BEDDOK STÉPHANE
Designated States
Priority Data 1452651 27.03.2014 FR
Title
(DE) ARCHITEKTUR EINES MEHRMOTORIGEN HUBSCHRAUBERANTRIEBSSYSTEMS UND ENTSPRECHENDER HUBSCHRAUBER
(EN) MULTI-ENGINED HELICOPTER ARCHITECTURE AND HELICOPTER
(FR) ARCHITECTURE D'UN SYSTEME PROPULSIF D'UN HELICOPTERE MULTI-MOTEUR ET HELICOPTERE CORRESPONDANT
Abstract
(EN)
The invention relates to an architecture of a multi-engine helicopter propulsion system comprising turbine engines (1, 2) connected to a power transmission gearbox (3), and a low-voltage on-board DC network (7) intended to power helicopter equipment during flight, characterized in that the architecture comprises: a hybrid turbine engine (1) able to operate in at least one standby state during steady stabilized flight of the helicopter; an electrotechnical pack (20) for the rapid restart of said hybrid turbine engine in order to cause it to exit said standby state and attain a state in which it supplies mechanical power, said restart pack (20) being connected to said onboard network (7); and at least two sources (4, 16, 18) for electrically powering said on-board network (7).

(FR)
L'invention concerne une architecture d'un système propulsif d'un hélicoptère multi-moteur comprenant des turbomoteurs (1, 2) reliés à une boite (3) de transmission de puissance, et un réseau (7) de bord basse tension continue destiné à alimenter en vol des équipements de l'hélicoptère, caractérisée en ce qu'elle comprend : un turbomoteur (1) hybride apte à fonctionner dans au moins un régime de veille au cours d'un vol stabilisé de l'hélicoptère; un pack (20) électrotechnique de redémarrage rapide dudit turbomoteur hybride pour le sortir dudit régime de veille et atteindre un régime dans lequel il fournit de la puissance mécanique, ledit pack (20) de redémarrage étant relié audit réseau (7) de bord; et au moins deux sources (4, 16, 18) d'alimentation électrique dudit réseau (7) de bord.