DRIVE EQUIPPED WITH “NO BACK” SYSTEM WITH LOCKING ZONE Russian patent published in 2020 - IPC F16H25/24 

FIELD: engine building.

SUBSTANCE: invention relates to the field of aircraft drives and, more specifically, to the turbojet thrust reverse thrust reverser drives. Drive (1) comprises screw (15) installed with possibility of rotation on housing (8), nut (19) connected to movable element and installed on screw (15) with possibility of movement. There is a first position and a second position on both sides of the third position, separated from the first position by the distance corresponding to the rotation of screw (15) by the value of the first angular sector (A₁). Also, drive (1) has anti-deployment device (30) comprising friction disc (36) having at least one smooth surface (40) and stop (41.1, 41.2) made in smooth surface (40). They are able to interact with at least one pawl (42) connected to body (8), and thus, respectively, at least second angular sector (A₂, A₃) of free rotation of friction disk (36) and position of friction lock of disc (36).

EFFECT: improved drive reliability is achieved.

9 cl, 13 dwg