Assembly including a reverse thrust device and system for actuating said device

Patent metadata

Field	Value
Publication number	US-9518535-B2
Application number	US-201213691160-A
Country	US
Kind code	B2
Filing date	Nov 30, 2012
Priority date	Jun 1, 2010
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

Abstract

A reverse thrust device and a system for actuating the reverse thrust device is provided by the present disclosure. The device includes at least one cowl that is translatably mounted in a direction substantially parallel to a longitudinal axis of a nacelle. The actuation system includes an actuation means that is capable of activating translational and rotational movement of the cowl and a panel of a nozzle. The actuation system also includes a downstream locking means for the nozzle and the cowl. The downstream locking means includes at least two reversible states, one of the states being a locked state in which the downstream locking means is suitable for locking the panel of the nozzle into a position for varying the section for outputting the nozzle with the cowl.

First claim

What is claimed is:

1. An assembly comprising:
a reverse thrust device; and
a system for actuating said reverse thrust device,
said thrust reverse device including at least one cowl that is translatably mounted in a direction parallel to a longitudinal axis of a nacelle capable of passing alternately between a closed position, in which the cowl provides aerodynamic continuity of the nacelle, and an open position, in which the cowl opens a passage into the nacelle intended for a diverted flow, said moving cowl also being extended by at least one variable nozzle section, said nozzle including at least one rotatably mounted panel, said panel being suitable for pivoting towards at least one position causing a variation in the nozzle section, the system including an actuation means consisting of a single actuator that is capable of activating the respective translational and rotational movement of the cowl and the panel of the nozzle, wherein the system further includes:
a downstream locking device for the nozzle and the cowl, the downstream locking device being activated by the single actuator and including at least two reversible states, one of said states being a locked state in which the downstream locking device locks the panel of the nozzle into a position for varying the section of the nozzle and locks the nozzle with the cowl such that the nozzle moves with the cowl.

2. The assembly according to claim 1 , characterized in that the downstream locking device is in an unlocked state in direct jet and during phases for varying the nozzle section and, conversely, in a locked state in reverse jet to allow the nozzle to move with the cowl in the downstream direction of the nacelle.

3. The assembly according to claim 1 , further comprising an upstream locking device comprising at least two reversible states, one of said states being a locked state in which the upstream locking device is adapted to keep the cowl in the closed position secured to a fixed structure of the nacelle.

4. The assembly according to claim 3 , characterized in that the upstream locking device is in a locked state in direct jet and during nozzle section varying phases and, conversely, in an unlocked state in direct jet allowing the cowl to move in the downstream direction of the nacelle.

5. The assembly according to claim 1 , characterized in that the single actuator can activate the translation of the cowl and pivoting of the panel of the nozzle toward a position causing the section of the nozzle to vary independently of the movement of the moving cowl.

6. The assembly according to claim 5 , characterized in that the single actuator is a linear actuator comprising a base inside which a rod is housed designed to be fastened to the upstream end of the panel of the nozzle.

7. The assembly according to claim 1 , characterized in that the downstream locking device is partially mounted on the single actuator.

8. The assembly according to claim 6 , further comprising a gripping means is mounted on the rod of the actuator and a hook is mounted across from it on the cowl.

9. A dual flow turbojet engine comprising a thrust reverse device fequipped with an actuating system according to claim 1 .

Assignees

• Aircelle Sa

Inventors

• Vauchel Guy Bernard
• Gonidec Patrick

Classifications

• F02K1/763 Primary

  with actuating systems or actuating devices; Arrangement of actuators for thrust reversers · CPC title

• F02K1/766

  with blocking systems or locking devices; Arrangement of locking devices for thrust reversers · CPC title

• F02K1/72

  the aft end of the fan housing being movable to uncover openings in the fan housing for the reversed flow · CPC title

• F02K1/1207

  of one series of flaps hinged at their upstream ends on a fixed structure (F02K1/1215 - F02K1/1292 take precedence) · CPC title