Overrunning clutch for turbojet engine

The invention discloses an overrun clutch for a turbojet engine, relates to the technical field of clutches, and aims to solve the technical problem that an existing overrun clutch is unstable in torsion. The overrun clutch for the turbojet engine comprises a flow guide cone, and a cone body of the flow guide cone is of a hollow structure and is in the middle; a coupler, a clutch and a torque transmission nut are arranged in the flow guide cone, the clutch outer sleeve is matched with the torque transmission nut, the torque transmission nut is connected with a rotor shaft, a friction ring is arranged in the clutch outer sleeve, a friction groove is formed in the torque transmission nut, and the friction groove is matched with the friction ring. According to the rotating speed difference of a driving motor and an engine rotor, the extrusion force between the clutch outer sleeve and the torque transmission nut can be adjusted in a self-adaptive mode, the friction ring is embedded into the friction groove after