Abstract: The invention relates to an actuation device (1) for moving a movable cover of a thrust reverser. Said actuation device includes: —an actuator including a first element (4), such as a screw, and a second element (5), such as a nut, that engages with the first element such that rotation of the first element causes translation of the second element; —a locking portion (31) rotatable between a locked position, wherein the locking portion prevents the first element (4) from rotating, and an unlocked position, wherein the locking portion (31) allows the first element (4) to rotate; and —an inhibiting part (45) that is translatable between a first position, wherein the inhibiting part (45) allows the locking portion (31) to rotate, and a second position, wherein the inhibiting part (45) prevents the locking portion (31) from rotating into the locked position.

Abstract: Telescopic actuator comprising an actuator body; a sleeve with a longitudinal axis mounted such as to rotate and extending at least partially into the body, said sleeve being held in axial position in the body by attachment means; a threaded rod mounted such as to slide telescopically in the longitudinal axis inside the sleeve and engaging with the sleeve by means of a helical link; rotating means suitable for rotating the sleeve such as to slide the threaded rod selectively between an extended position and a retracted position; locking means suitable for making the retraction of the helical link irreversible, such that a retraction of the threaded rod caused by a compression load is prevented when such a retraction is not caused by the driving means. Aircraft engine comprising at least one such actuator.

Abstract: The invention relates to an actuation device (1) for moving a movable cover of a thrust reverser. Said actuation device vice includes: —an actuator including a first element (4), such as a screw, and a second element (5), such as a nut, that engages with the first element such that rotation of the first element causes translation of the second element; —a locking portion (31) rotatable between a locked position, wherein the locking portion prevents the first element (4) from rotating, and an unlocked position, wherein the locking portion (31) allows the first element (4) to rotate; and —an inhibiting part (45) that is translatable between a first position, wherein the inhibiting part (45) allows the locking portion (31) to rotate, and a second position, wherein the inhibiting part (45) prevents the locking portion (31) from rotating into the locked position.