Equipment drive gearbox in a turbomachine
AssigneeSafran Transmission Systems
InventorsMaxence Guillemont, Fanélie Drevon, Julien Viel
Life of this patent
Estimating the term…
Abstract
A drive gearbox for turbomachine equipment, the drive gearbox having a main shaft intended to be rotationally connected to a power transmission shaft of a turbomachine. The main shaft has at least one bevel gear rotationally driving at least one piece of equipment. The gearbox has gear set with cylindrical gearwheels that have an input connected to the rotational drive to the main shaft and a plurality of outputs each intended to drive a piece of equipment. The gear set extends over an angular sector and the outputs are angularly spaced apart along the angular sector.
Claims11
A turbomachine comprising a drive gearbox for pieces of equipment, the drive gearbox comprising a main shaft intended to be rotationally connected to a power transmission shaft of a turbomachine, wherein the main shaft comprises at least one bevel gear rotationally driving at least one piece of equipment, wherein the drive gearbox comprises a gear set, the gear set comprising:
- an input connected to the main shaft;
- and
- a plurality of cylindrical gearwheels comprising all cylindrical gearwheels of the drive gearbox, each of said plurality of cylindrical gearwheels comprising an axis of rotation and an output, each output configured to drive one of the at least one piece of equipment,
- wherein the gear set extends over an angular sector and each output of the plurality of cylindrical gearwheels is angularly spaced apart about an axis of the turbomachine, along the angular sector,
- wherein each output of the plurality of cylindrical gearwheels extends away from the respective cylindrical gearwheel in a downstream direction relative to a primary airflow in the turbomachine,
- wherein the drive gearbox is radially arranged in an annular space separating a primary annular air jet and a secondary annular air jet, and axially at a high pressure compressor, with the drive gearbox being so arranged that the gear set is arranged downstream of said at least one bevel gear.
Dependencies are inferred from the claim text.