US 12,065,935 B2
Turbomachine equipped with electric machines coupled to a coupling surface
Jordane Emile André Peltier, Moissy-Cramayel (FR); and Boris Pierre Marcel Morelli, Moissy-Cramayel (FR)
Assigned to SAFRAN TRANSMISSION SYSTEMS, Colombes (FR)
Appl. No. 17/999,701
Filed by SAFRAN TRANSMISSION SYSTEMS, Colombes (FR)
PCT Filed May 19, 2021, PCT No. PCT/FR2021/050886
§ 371(c)(1), (2) Date Nov. 22, 2022,
PCT Pub. No. WO2021/240095, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 2005598 (FR), filed on May 27, 2020.
Prior Publication US 2023/0203963 A1, Jun. 29, 2023
Int. Cl. F01D 15/10 (2006.01); F02C 7/32 (2006.01)
CPC F01D 15/10 (2013.01) [F02C 7/32 (2013.01); F05D 2220/76 (2013.01); F05D 2260/4031 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A turbomachine comprising a fan, a first casing with a longitudinal axis X in which a motor shaft is driven in rotation along the longitudinal axis X, a second casing surrounding and coaxial with the first casing, and a drive shaft connected to the motor shaft and to at least two electric machines via a power transmission angle gear device housed in a case, the electric machines being configured to collect from or to inject power into the motor shaft, the power transmission angle gear device comprising a main shaft with an axis parallel to the longitudinal axis and configured to drive power transmission shafts of the two electric machines, the case comprising a coupling surface to which the two electric machines are coupled, wherein the main shaft housed in the case comprises a first toothed wheel meshing with a first input pinion mounted on a first end of the drive shaft and a second toothed wheel configured to mesh with at least two output wheels that are each respectively carried by a power transmission shaft coupled to the corresponding electric machine.