Turbomachine comprising a means for decoupling a fan

A turbine engine including a fan shaft driven by a turbine shaft with a rotational speed reduction device. A decoupling element is interposed between the reduction device and the fan shaft which operates to decouple the reduction device and the fan shaft. The reduction device is coupled to the fan s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Yvon, Didier Jean-Louis, Brault, Michel Gilbert Roland, Becoulet, Julien Fabien Patrick, Negri, Arnaud Nicolas
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES ENGINE PLANTS IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS JET-PROPULSION PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A turbine engine including a fan shaft driven by a turbine shaft with a rotational speed reduction device. A decoupling element is interposed between the reduction device and the fan shaft which operates to decouple the reduction device and the fan shaft. The reduction device is coupled to the fan shaft by a coupling having trapezoidal teeth of the curvic type which are used during the said decoupling operation. The decoupling element is configured to decouple the reduction device and the fan shaft in response to a predetermined resistive torque, referred to as the decoupling torque, which acts between the fan shaft and the reduction device.