Aircelle Limited

Pierre Andre Marcel Baudu

Guy Bernard Vauchel

Pierre Moradell-Casellas

The invention relates to a linear telescopic actuator for moving a first () and a second () element relative to a stationary element (). Said actuator comprises a base () that is to be connected to the stationary element () and is used as a cavity for a first rotationally locked rod () which can be translated by a drive shaft () that is to be connected to rotational driving means (). One end () of said first rod is to be connected to the first element that is to be moved. The actuator is characterized in that the first rod () supports a second rod () which is aligned therewith and one end () of which is to be connected to the second element that is to be moved. Said second rod () can be rotationally locked and can be translated by a second drive shaft () which extends through the base and is connected to rotational driving means ().

Linear telescopic actuator for moving a first and a second element relative to a stationary element

A thrust reverser for a turbojet engine includes a telescopic linear actuator for a moving cowl and a nozzle-forming end part. The telescopic linear actuator has a base attached to a fixed frame, acting as a housing for a first rod prevented from rotating but able to be translationally driven by a first drive shaft connected to a rotational-driver. The first rod is attached by one end to the moving cowl and supports a second rod, which is attached by one end to the nozzle-forming end part that is to be moved. The second rod is prevented from rotating and translationally driven by a second drive shaft passing through the base and connected to a rotational-driver. In particular, the rotational-driver of the rods includes a motor to drive an input shaft of a differential having two output shafts.

Double-acting telescopic linear actuator with single-motor drive system

The invention relates to a thrust reverser () comprising an opening with fixed grids () that is closed by a sliding lid () in case of direct thrust, and opened by the downstream longitudinal translation displacement of the lid () in case of thrust reversal. A flap () is pivotally mounted at one upstream end on the lid () and can move between a retracted position and an expanded position in which, in case of thrust reversal, it blocks an annular channel () in order to redirect a gas flow towards the grid opening (). A slider () for driving the flap () is mounted so as to be capable of displacement in at least one translation guiding rail () provided in the structure of the lid (), and is connected to a downstream end of the flap () through a driving connecting rod () so that a translation movement of the slider () in the guiding rail () results in a pivoting of the connecting rod () and of the flap (). Actuation means () are provided for driving the slider () in a translation movement in the guiding rail () when the lid () is in a downstream translation phase.

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Criquetot l'Esneval, France

Pierre Andre Marcel Baudu