Compact gear train for turbomachine reducer

Abstract

A gear train including a sun gear having a central axis, a ring gear disposed coaxially around the sun gear, a planet carrier, and a first and a second plurality of planet gears. Each planet gear is supported by the planet carrier and includes at least one first gearing meshing with the ring gear and two second gearings meshing with the sun gear and offset with respect to each other in the axial direction. Each of the first gearings of the first and second plurality of planet gears has a first median diameter, and each of the second gearings of the first and second plurality of planet gears has a second median diameter greater than the first median diameter. The second gearings of the second plurality of planet gears are disposed, in the axial direction, between the second gearings of the first plurality of planet gears.

Dependencies are inferred from the claim text.