Safran Aircraft Engines

Snecma

Jérémy Phorla Lao

Olivier Belmonte

Clémentine Charlotte Marie Mouton

Emmanuel Pierre Dimitri Patsouris

Thomas Julien Nguyen Van

A reduction gear having an epicyclic gear train for a turbine engine, in particular of an aircraft, comprising: a planetary shaft having an axis of rotation A; a ring gear having an axis A extending around said planetary shaft; planet gears distributed around said axis A, which mesh with said ring gear and the planetary shaft; and a planet carrier including members for supporting bearings of the planet gears, having axes of rotation B, which are evenly distributed around the axis A, as well as a part holding each supporting member substantially by the middle thereof along the axis B thereof, wherein said supporting members are made as a single part having means for supplying lubricating oil to said bearings. A method for assembling said reduction gear is also provided.

Reduction gear having an epicyclic gear train for a turbine engine

A device for recovering oil injected by centrifugal effect in a turbine engine, comprising a substantially circular ring around an axis, the ring comprising a first part forming a basin surrounding the axis and having an opening turned radially inward, so as to recover the oil injected radially across from the opening, and a second part forming a substantially toroidal chamber, radially open outward at a low point, so as to allow oil to escape, a passage being arranged between the basin and the chamber substantially over the entire circumference around the axis so as to cause the oil recovered by the basin to enter the chamber, wherein a rim is arranged between a radially inner bottom of the chamber and the passage, so as to contain the oil accumulating in this radially inner bottom of the chamber, and in some embodiments, at a high point.

Device for recovering lubrication oil ejected by centrifugal effect in a turbine engine

The device () comprises two outer and inner concentric rings (), one of which is connected to an oil supply from one of the repositories, the other ring being connected to the other repository, the oil flowing between said rings, and bearings between the rings in order to change repositories between the two rings. According to the invention, the device () further comprises a flexible means () forming a shock absorber, provided between a first of said rings and an intermediate ring () that is separated from a second of said rings by said bearings (), said flexible means () defining a deformable sealed chamber () in which oil travels between the two repositories.

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Moissy-Cramayel, France

Jérémy Phorla Lao