US 12,454,918 B2
Method and aircraft provided with at least one combustion engine and a drive system with at least two electric machines
Marc Gazzino, Marseilles (FR)
Assigned to AIRBUS HELICOPTERS, Marignane (FR)
Filed by AIRBUS HELICOPTERS, Marignane (FR)
Filed on Sep. 8, 2023, as Appl. No. 18/463,551.
Claims priority of application No. 2210750 (FR), filed on Oct. 18, 2022.
Prior Publication US 2024/0125275 A1, Apr. 18, 2024
Int. Cl. F02C 9/00 (2006.01); B64D 27/02 (2006.01); B64D 27/04 (2006.01); B64D 27/10 (2006.01); B64D 31/02 (2006.01); B64D 31/18 (2024.01); B64D 33/00 (2006.01); B64D 35/023 (2025.01); F02C 6/20 (2006.01); F02C 7/262 (2006.01); F02C 7/275 (2006.01); F02K 5/00 (2006.01); H02P 9/08 (2006.01); H02P 101/25 (2016.01); H02P 101/30 (2015.01); B64C 27/06 (2006.01); B64D 35/08 (2025.01)
CPC F02C 9/00 (2013.01) [B64D 27/02 (2013.01); B64D 27/10 (2013.01); B64D 31/02 (2013.01); B64D 31/18 (2024.01); B64D 35/023 (2024.01); F02C 6/206 (2013.01); F02C 7/262 (2013.01); F02C 7/275 (2013.01); F02K 5/00 (2013.01); H02P 9/08 (2013.01); B64C 27/06 (2013.01); B64D 27/04 (2013.01); B64D 33/00 (2013.01); B64D 35/08 (2013.01); F05D 2220/329 (2013.01); H02P 2101/25 (2015.01); H02P 2101/30 (2015.01)] 19 Claims
OG exemplary drawing
 
1. An aircraft provided with a power plant provided with at least one combustion engine having a power turbine that mechanically rotates an output shaft configured to set a gearbox of a power transmission system in motion, the combustion engine being mechanically connected to a drive system capable of setting a mobile system of the combustion engine in motion, the mobile system of the combustion engine being a turbine constrained to rotate with a compressor by a connecting shaft, the mobile system having a shaft of a connecting link secured thereto, the power turbine being free of the mobile system, the drive system comprising two electric machines each connected to the mobile system of the combustion engine by a kinematic chain and each electric machine being capable of setting the mobile system of the combustion engine in motion, the kinematic chain including a first mechanical connection that is connected between a first one of the electric machines and a combining gear secured to the shaft of the connecting link to connect the first one of the electric machines to the mobile system and the kinematic chain further including a second mechanical connection that is connected between a second one of the electric machines and the combining gear secured to the shaft of the connecting link to connect the second one of the electric machines to the mobile system, the two electric machines being electrically connected to at least one electrical power source,
wherein the aircraft comprises a management system controlling at least a mechanical power or an engine torque delivered by each of the two electric machines as a function of a current operating mode, the management system being configured, during a first operating mode, to control the two electric machines in order for the two electric machines to simultaneously deliver different and non-zero mechanical powers or engine torques.