Turbine engine comprising an immobilizing magnetic coupling device

A turbine engine for an aircraft, the turbine engine comprising:

• a structural element;
• a rotating element with blades or vanes rotatably mounted in the structural element and designed to generate thrust as the rotating element rotates;
• propulsion means configured to drive the rotating element in rotation;
• means for braking rotation of the rotating element formed by an electric braking motor;
• controlled means for immobilizing the rotating element relative to the structural element;
• wherein the controlled immobilization means are formed by a magnetic coupling device which is separate from the electric braking motor and which comprises:
• a rotor mounted to rotate about an axis (E) of rotation, which is coupled to the rotating element, and which comprises first magnetic elements;
• a stator mounted to be fixed in rotation about said axis (E) of rotation with respect to the structural element, and which comprises second magnetic elements;
• the magnetic coupling device being controlled between an inactive state, in which the rotor is free to rotate relative to the stator, and an active state, in which the rotor is immobilized in rotation by an immobilizing resistive torque produced by magnetic interaction between the first magnetic elements and the second magnetic elements.