Abstract: A turbine engine for an aircraft includes a rotating element rotatably mounted in a structural element and configured to generate thrust during rotation thereof. The turbine engine further includes controlled means for immobilizing the rotating element with respect to the structural element. The controlled immobilization means are formed by a magnetic coupling device that include a rotor that is coupled with the rotating element and comprises first magnetic elements; and a stator which is stationary with respect to the structural element and second magnetic elements. The magnetic coupling device is controlled between an inoperative state, in which the rotor is free to rotate with respect to the stator, and an operative state, in which the rotor is rotatably immobilized by an immobilization resisting torque.

Abstract: An aircraft turbine engine having a compressor,—an annular combustion chamber, a system for diffusing and straightening an air stream exiting the compressor in order to supply the combustion chamber, and a heat exchanger, this heat exchanger having: a first circuit supplied with exhaust gas from the turbine engine, and a second circuit comprising an inlet (38ba) connected by a first scroll to an outlet of the diffuser, and an outlet connected by a second scroll to an inlet of the straightener, the scrolls including connecting arms that rigidly connect the annular portions of the scrolls which are secured or connected to the diffuser and to the straightener, respectively.

Abstract: The invention concerns a turbomachine rotor (1), characterised in that it comprises a threaded or tapped part (3, 6) and a damping nut (8) screwed onto the threaded or tapped part (3, 6) so as to allow the threads of the nut (8) and of the threaded or tapped part (3, 6) to rub against each other in the event of vibration of the rotor (1).

Abstract: The invention concerns a turbomachine rotor (1), characterised in that it comprises a threaded or tapped part (3, 6) and a damping nut (8) screwed onto the threaded or tapped part (3, 6) so as to allow the threads of the nut (8) and of the threaded or tapped part (3, 6) to rub against each other in the event of vibration of the rotor (1).