Curvilinear coupling for aircraft turbomachinery
AssigneeSafran Helicopter Engines
InventorsOlivier Pierre DESCUBES, Frédéric Ferdinand Jacques BATLLE
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Abstract
A toothed coupling mechanism for an assembly of rotating elements of an aircraft gas turbine engine includes a pair of coupling halves having an axial toothed coupling interface therebetween. Each coupling half has a plurality of splined teeth inter-engaged about an axis for transmitting torque therebetween. A protrusion is located on one of the splined teeth of one of the coupling halves. A splined tooth of the other coupling half comes into contact with the protrusion in a situation of uncoupling of said coupling halves.
Claims9
A toothed coupling mechanism for an assembly of rotating elements of an aircraft gas turbine engine, comprising:
- a pair of coupling halves having an axial toothed coupling interface therebetween, each of said coupling halves thereby having a plurality of splined teeth inter-engaged about an axis (X), for transmitting torque therebetween;
- and
- a protrusion
- located, away from said axis (X), on one of said splined teeth of one of said coupling halves, and
- with which one said splined tooth of the other coupling half comes into contact in a situation of uncoupling of said coupling halves.
A method for controlling consequences of an uncoupling on an axial toothed coupling mechanism of a rotating element assembly of an aircraft gas turbine engine, said mechanism comprising a pair of coupling halves having an axial toothed coupling interface therebetween, each of said coupling halves thereby having a plurality of splined teeth inter-engaged about an axis to transmit torque therebetween, wherein in an incipiently axially uncoupling condition and by means of a protrusion located on one of said splined teeth away from said axis (X), a relative pivoting between said coupling halves about said protrusion is caused.
Dependencies are inferred from the claim text.