Abstract:
Die Erfindung betrifft ein elektro-hydraulisches Modul (1) zum Antreiben wenigstens eines Bauteils eines Luftfahrzeuges, insbesondere eines Flugzeuges, wobei das elektro-hydraulische Modul (1) wenigstens einen Elektromotor (2) und wenigstens eine mit dem Elektromotor (2) gekoppelte kompensierte Innenzahnradpumpe (3) umfasst. Die Erfindung ist ferner auf ein Luftfahrzeug mit einem entsprechend elektrohydraulischen Modul (1) gerichtet.
Abstract:
The invention relates to a power supply and control device (20) for a plurality of electrical actuators (7, 8, 9, 10, 11) comprising a control circuit (250) and a power circuit (200), wherein the power circuit comprises an inverter module (201) connected to a switching module (221) provided with means for connecting to the actuators, the control circuit being connected to the switching module to control the latter so as to sequentially connect the actuators to the inverter module, characterized in that the control circuit (250) is arranged to sequentially control the inverter module 201 and the switching module, and in that the control circuit comprises a monitoring module (260) arranged to detect a dysfunction of the device. The invention further relates to an actuation assembly comprising a plurality of actuators and such a power supply and control device, to an aircraft comprising a plurality of actuators and such a power supply and control device.
Abstract:
Dispositif d'alimentation et de commande (20) d'une pluralité d'actionneurs électriques (7, 8, 9, 10, 11) comportant un circuit de commande (250) et un circuit de puissance (200), le circuit de puissance comportant un module onduleur (201) relié à un module d'aiguillage (221) pourvu de moyens de liaison aux actionneurs, le circuit de commande étant relié au module d'aiguillage pour piloter celui-ci de manière à relier séquentiellement les actionneurs au module onduleur, caractérisé en ce que le circuit de commande (250) est agencé pour commander séquentiellement le module onduleur (201) et le module d'aiguillage et en ce que le circuit de commande comporte un module de surveillance (260) agencé pour détecter un dysfonctionnement du dispositif. Ensemble d'actionnement comportant une pluralité d'actionneurs et un tel dispositif de puissance et de commande, avion comportant une pluralité d'actionneurs et tel un dispositif de puissance et de commande du type précité.
Abstract:
This disclosure describes a configuration of an unmanned aerial vehicle (UAV) landing gear assembly that includes adjustable landing gear extensions (251) that may be extended or contracted so that the body of the UAV is contained in a horizontal plane when the UAV is landed, even on sloping surfaces. For example, when a UAV is landing, the slope of the surface may be determined and the landing gear extensions (251) adjusted based on the slope so that the body of the UAV remains approximately horizontal when the UAV lands and is supported by the landing gear extensions.
Abstract:
This disclosure relates to a landing gear system that includes a landing gear strut rotatable between stowed and deployed positions. An actuator is connected to the landing gear strut, and includes main and emergency drives housed within a common body and operable independently from one another. A controller in communication with the actuator is configured to command the actuator between the stowed and deployed positions in response to an input. The controller commands the main drive during a normal operating condition and commands the emergency drive in a failure condition of the main drive. The actuator includes a body supporting emergency and main leadscrews arranged coaxially with one another. Main and emergency motors respectively are coupled to the main and emergency leadscrews. An output rod is supported by and extends from the body. The output rod is threadingly coupled to and is coaxial with the main leadscrew and configured to move axially in response to rotation of the main leadscrew. A brake selectively enables and disables the emergency drive.
Abstract:
An unmanned aerial vehicle (UAV) (100). The UAV (100) comprises a central body (105). The UAV (100) also comprises a plurality of landing gears (120) that are extendable from and movable relative to the central body (105). The plurality of landing gears (120) are configured to transform between (1) a flight configuration wherein the landing gears (120) are extending laterally away from the central body (105) and not in contact with a surface below the central body (105), and (2) a surface configuration wherein the landing gears (120) are extending towards the surface below the central body (105). Additionally, when the landing gears (120) are in the surface configuration, the landing gears (120) are configured to (a) support a weight of the central body (105) on said surface, and (b) transport the UAV (100) over said surface by moving one or more landing gears (120) relative to the surface. A method of operating the unmanned aerial vehicle (UAV) (100) is also provided.
Abstract:
A screw actuator may comprise: a barrel; a piston rod movable in the barrel in an extending direction and in a retracting direction; an elongated screw in the bore of the barrel and rotatable by a motor drive; a nut coupled to the piston rod and movable in the bore of the barrel in the extending direction and in the retracting direction responsive to rotation of the elongated screw; and a plurality of lock segments in the piston rod and movable radially outward and radially inward in response to movement of the nut. The plurality of lock segments engage the barrel when moved radially outward and do not engage the barrel when moved radially inward, whereby the piston rod is lockable to the barrel by the plurality of lock segments for bearing loads applied thereto.
Abstract:
Elektromechanischer Rotationsaktuator mit einem Rotationsantrieb wobei der Rotationsantrieb über wenigstens eine Kupplung mit der zu betätigenden Last kuppelbar verbunden bzw. verbindbar ist und die wenigstens eine Kupplung über eine integrierte Hydraulik des Aktuators trennbar und/oder verbindbar ist.