Patent classifications
B64D27/402
Aircraft propulsion assembly
The disclosure relates to an aircraft propulsion assembly comprising a bypass turbojet engine equipped with a nacelle, the bypass turbojet engine including a structure defining a first part of a secondary flow path for channeling secondary flow, and the nacelle having a structure defining a second part of the secondary flow path. The structure of the nacelle defining the second part of the secondary flow path is arranged such that the first part and the second part of the secondary flow path are angularly offset around a longitudinal axis of the engine when the engine is shut down/stopped.
ASSEMBLY BETWEEN AN AIRCRAFT PYLON AND A TURBINE ENGINE
An assembly between an aircraft structural pylon and an aircraft turbine engine is disclosed, with the assembly comprising a beam intended to be attached to the turbine engine and wherein a knuckle intended for the installation of a pad integral with the pylon is mounted, with the beam comprising suspension lugs each including a bore for the passage of a shaft intended to further go through a bore formed in the pylon to connect the beam with the pylon.
MOUNT MECHANISM OF ACCESSORY GEARBOX
A mount mechanism used to mount an accessory gear box on an engine case in an aircraft engine, includes a pair of first brackets apart from each other in a circumferential direction of the engine case; the pair of first brackets being connected to each other via the link, both end portions of the link being coupled to the pair of first brackets by a pair of first pins, respectively; an annular anti-vibration element penetrated by each of the pair of first pins, the annular anti-vibration element being retained by at least one of each of the pair of first brackets and the end portion of the link; and a second bracket fastened to the other of the engine case and the accessory gear box, the second bracket box being coupled to the link by a second pin at a location between the pair of first brackets.
AIRCRAFT ENGINE ASSEMBLY, COMPRISING FLEXIBLE FORCE TRANSMITTING DEVICES RADIALLY ARRANGED BETWEEN THE THRUST REVERSAL COWLS AND THE ENGINE
To reduce flexural deformations of an engine, an engine assembly comprises a device for attaching the engine onto a structure of an aircraft, the attachment device including a primary structure, an attachment device for attaching the engine onto the primary structure of the attachment pylon, and a nacelle including thrust reversal cowls, each equipped with an inner structure arranged around a case portion of the engine. The assembly includes flexible devices for transmitting forces, arranged between the case portion and the inner structures of the cowls, each device including an elastically deformable device configured so that in the closed position of the cowl, with the engine at a standstill, it adopts a partial elastic deformation state allowing the device to apply a prestress force on the case portion.
THREE-SPRING RAM AIR TURBINE ACTUATOR
A ram air turbine (RAT) actuator can include an actuator housing, an actuator rod configured to move relative to the actuator housing through several positions, and a first biasing member, a second biasing member, and a third biasing member positioned and configured to bias the actuator rod relative to the actuator housing. The first biasing member biases the actuator rod from a first position through a second position, the second biasing member biases the actuator rod from the first position through a third position, and the third biasing member biases the actuator rod from the first position through a fourth position. The three biasing members can be configured to bias a ram air turbine against an uplock hook with sufficient force to eliminate vibrational damage to the uplock hook while in the first position.
Airplane suspension cowling structure with wing-mounted arrangement
Provided is an airplane suspension (20) fairing structure with a wing-mounted arrangement, the fairing structure comprising a front fairing located in front of the leading edge (31) of a wing and a rear fairing located at the back of the leading edge (31) of the wing; the vertical section line (G) of the front fairing is curved, ascending along air flow direction from a start point (p) of an engine nacelle (10) to the maximum height position and then descending and extending below the lower surface (32) of the wing. In the present invention, due to the curved vertical section line of the front fairing of the suspension, inner space of the suspension is met only in the position requiring greater inner space, thus enabling the engine to be mounted close to the wing without additional devices; and the fairing aerodynamic surface of the suspension will not extend to the upper surface of the wing, avoiding interference of the suspension with the wing during cruising.
TURBINE ENGINE HAVING HORIZONTALLY OFFSET AXES
The invention relates to an aircraft propulsion assembly comprising a cradle receiving a turbine engine comprising at least one propeller having a longitudinal axis of rotation, a gas turbine engine having a longitudinal axis of rotation offset from the axis, and a reduction gear by means of which said propeller receives drive power from said engine, wherein the propeller and the gas turbine engine are designed such that axes and are offset from one another within said cradle at least by a given value in a transverse direction, the axis of the gas turbine engine being transversely closer to a proximal lateral side of the cradle than to an opposite distal lateral side of the cradle in order to create a lateral space between said engine and said distal lateral side of the cradle, thereby forming at least one region for installing equipments, components or accessories of said turbine engine.
Tiltrotor Aircraft having Pillow Block Mounted Pylon Assemblies
A pedestal assembly for receiving a pylon assembly of a tiltrotor aircraft having a helicopter mode and an airplane mode, the tiltrotor aircraft having an airframe including a fuselage and a wing. The pedestal assembly includes an inboard pedestal supported by the airframe and positioned above the wing. The inboard pedestal includes an inboard bearing assembly disposed within an inboard pillow block housing. The pedestal assembly also includes an outboard pedestal supported by the airframe and positioned above the wing. The outboard pedestal includes an outboard bearing assembly disposed within an outboard pillow block housing. The inboard and outboard bearing assemblies are operable to receive the pylon assembly therein such that the pylon assembly is rotatably mounted between the inboard and outboard pedestals to selectively operate the tiltrotor aircraft between the helicopter mode and the airplane mode.
ASSEMBLY FOR AN AIRCRAFT COMPRISING A WING AND AN ENGINE PYLON FOR COUPLING A PROPULSION SYSTEM TO SAID WING
An assembly comprising a wing with a lower surface panel and an upper surface panel and an engine pylon comprising a primary structure fixed to the wing with a fixing base. The fixing base comprises fourth fixing yokes while the primary structure bears fourth fittings, the fourth fixing yokes being secured to the fourth fittings with fourth rods.
TILTROTOR AIRCRAFT
A tiltrotor aircraft is provided having a fuselage and a wing. The tiltrotor aircraft includes a node with a tilt mechanism mechanically coupled to one of the fuselage or the wing, a pylon mechanically coupled to the tilt mechanism at a first end and to a motor at a second end, and a rotor mechanically coupled to the motor, wherein the node provides thrust force balance above and below the wing. The tilt mechanism is actuated to enable vertical and horizontal flight. Furthermore, the node is force and torque balanced about an axis of rotation of the fuselage.