摘要:
A thrust reverser for aircraft gas-turbine engines includes latch devices that display a tell-tale visible indication when thrust reverser shutters (doors, etc.) are ajar. A latch of the lock at least partly projects from a wall (13, 14) radially bounding the annular structure (12) of the thrust reverser (10) when the latch (37) is in the open mode.
摘要:
An actuating mechanism is disclosed for a thrust reverser of a turbojet engine having an engine cowling with a reverse thrust opening, a thrust reverser door pivotally connected to the engine cowling so as to pivot between forward and reverse thrust positions, and a linear actuator having a casing with an extendable and retractable piston rod. The piston rod is connected to the thrust reverser by a first connection forming a first connection point. An interface bracket is fixedly attached to the turbojet engine structure and engages a mounting flange in a connector affixed to the actuator casing at a second connection point, the mounting flange being in contact with the interface bracket at a third connection point, the first, second and third connection points lying in a straight line.
摘要:
A latching mechanism is disclosed for a jet engine thrust reverser having a thrust reverser door movably connected to an engine cowling with a reverse thrust opening, the thrust reverser door being movable between a forward thrust position, in which the thrust reverser door covers the reverse thrust opening, and a reverse thrust position, in which the reverse thrust opening is uncovered. The latching mechanism has a lock bar mounted on the thrust reverser door, the lock bar having a distal end, and a latch member pivotally located on the cowling, the latch member having a slot engaged by the distal end of the lock bar when the thrust reverser door is in the forward thrust position. The latch member is movable between a latched position, in which the latch member prevents disengagement of the distal end of the lock bar from the slot, so as to lock the thrust reverser door in the forward thrust position, and an unlatched position which permits disengagement of the distal end of the lock bar from the slot. The latching mechanism also includes a hook member connected to the cowling and located so as to engage the distal end of the lock bar upon relative movement between the cowling and the thrust reverser door away from each other in a direction generally parallel to a longitudinal axis of the cowling, such engagement preventing disengagement of the distal end of the lock bar from the slot and displacement of the thrust reverser door from the forward thrust position.
摘要:
The invention relates to a linear telescopic actuator for moving a first (10b) and a second (10a) element relative to a stationary element (102). Said actuator comprises a base (101) that is to be connected to the stationary element (102) and is used as a cavity for a first rotationally locked rod (106) which can be translated by a drive shaft (104) that is to be connected to rotational driving means (107). One end (108) 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 (106) supports a second rod (117) which is aligned therewith and one end (118) of which is to be connected to the second element that is to be moved. Said second rod (117) can be rotationally locked and can be translated by a second drive shaft (112, 115) which extends through the base and is connected to rotational driving means (113, 111).
摘要:
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.
摘要:
A method for opening a mobile cowl actuated by a motor and equipping a turbojet thrust reverser that includes at the start of the opening phase, a bridling step whereby the speed of the mobile cowl is maintained lower or equal to a predetermined threshold speed.
摘要:
The invention relates to a thrust reverser (1) comprising an opening with fixed grids (4) that is closed by a sliding lid (2) in case of direct thrust, and opened by the downstream longitudinal translation displacement of the lid (2) in case of thrust reversal. A flap (20) is pivotally mounted at one upstream end on the lid (2) and can move between a retracted position and an expanded position in which, in case of thrust reversal, it blocks an annular channel (10) in order to redirect a gas flow towards the grid opening (4). A slider (24) for driving the flap (20) is mounted so as to be capable of displacement in at least one translation guiding rail (33) provided in the structure of the lid (2), and is connected to a downstream end of the flap (20) through a driving connecting rod (30) so that a translation movement of the slider (24) in the guiding rail (33) results in a pivoting of the connecting rod (30) and of the flap (20). Actuation means (22) are provided for driving the slider (24) in a translation movement in the guiding rail (33) when the lid (2) is in a downstream translation phase.
摘要:
The present invention relates to a casing (5) for a rotor of a turbomachine, more particularly for a fan (1) of a turbojet engine (2), comprising a peripheral shroud (6) designed to form a clamping collar around the casing, characterized in that the shroud has at least one fitting (12, 13) or flange for the attachment of equipment.
摘要:
The invention relates to a thrust reverser (1) comprising an opening with fixed grids (4) that is closed by a sliding lid (2) in case of direct thrust, and opened by the downstream longitudinal translation displacement of the lid (2) in case of thrust reversal. A flap (20) is pivotally mounted at one upstream end on the lid (2) and can move between a retracted position and an expanded position in which, in case of thrust reversal, it blocks an annular channel (10) in order to redirect a gas flow towards the grid opening (4). A slider (24) for driving the flap (20) is mounted so as to be capable of displacement in at least one translation guiding rail (33) provided in the structure of the lid (2), and is connected to a downstream end of the flap (20) through a driving connecting rod (30) so that a translation movement of the slider (24) in the guiding rail (33) results in a pivoting of the connecting rod (30) and of the flap (20). Actuation means (22) are provided for driving the slider (24) in a translation movement in the guiding rail (33) when the lid (2) is in a downstream translation phase.
摘要:
A device for closing and locking the shutters of an aircraft thrust reverser includes a lock having a latch which is motorized so as to complete the closure of a shutter utilizing energy supplied by the motor, thereby relieving the jack which is the prime mover of the shutter. The device includes a stop which opposes the latch and interacts with a counter-stop so as to immobilize the shutter in the closed position and thus reduce vibration and flapping of the shutter.