English to French Tech/Engineering Aerospace / Aviation / Space gas turbine engine for aircraft

contexte

"The engine includes an accessory unit that provides power to hydraulic, pneumatic
and electrical systems of the engine. The accessory unit is typically located outside the
core engine, radially spaced from the principle axis. The accessory unit is also driven
by the core engine. Torque is transferred from the core engine to the accessory unit by
an accessory drive train extending out from one of the core shafts. In order to deliver
torque to the accessory unit, the accessory drive train may need to use one or more
spline joints to couple shafts together, or to couple shafts to the accessory unit, an
accessory gearbox (such as a step aside gearbox) and the like."

"the drive train axis is inclined relative to the principal axis of the engine. It will be appreciated that the spline joint 60 incorporating
a chimney arranged to form a trough may be used in any drivetrain
with appropriate incline. For example, the absolute value of the first angle between
principal axis 9 and drive train axis may be between 45 degrees and 90 degrees.
This ensures that sufficient lubricant is retained in the trough , and the load of
the lubricant is sufficiently axisymmetric around the drive train axis . The drive
train may also include a step aside gearbox, or the like, within the drive train, to enable
variations or sideways steps in the drive train axis."