US 11,808,213 B2
Mechanical reducer
Guillaume Pierre Mouly, Moissy-Cramayel (FR); Frédéric Nicolas François Laisnez, Moissy-Cramayel (FR); and Adrien Louis Simon, Moissy-Cramayel (FR)
Assigned to SAFRAN TRANSMISSION SYSTEMS, Colombes (FR)
Filed by SAFRAN TRANSMISSION SYSTEMS, Colombes (FR)
Filed on Jan. 24, 2022, as Appl. No. 17/582,546.
Claims priority of application No. 2101036 (FR), filed on Feb. 3, 2021.
Prior Publication US 2022/0243662 A1, Aug. 4, 2022
Int. Cl. F16H 57/04 (2010.01); F02C 7/36 (2006.01); F02C 7/06 (2006.01); F16H 1/28 (2006.01)
CPC F02C 7/36 (2013.01) [F02C 7/06 (2013.01); F16H 1/28 (2013.01); F16H 57/0421 (2013.01); F16H 57/0486 (2013.01); F05D 2220/323 (2013.01); F05D 2260/40311 (2013.01); F05D 2260/98 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A mechanical reducer for a turbomachine, including:
a sun gear extending around an axis of rotation,
a crown which extends around the sun gear and which is configured to be fixed in rotation around said axis of rotation,
planet gears which are meshed with the sun gear and the crown and which are held by a planet carrier which is configured to be movable in rotation about said axis of rotation,
a lubricating oil distributor,
wherein the lubricating oil distributor comprises a plurality of separate oil distribution modules, each oil distribution module comprising a plurality of pipes, said oil distribution modules being assembled outside the planet carrier so as to form together the lubricating oil distributor, each oil distribution module comprising at least one lubrication pipe having an inlet adapted to receive oil and an outlet adapted to lead the oil into at least one opening of the planet carrier, the at least one opening being configured for lubricating the reducer.